CN116870338A - Implantable balloon and balloon implantation assembly - Google Patents
Implantable balloon and balloon implantation assembly Download PDFInfo
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- CN116870338A CN116870338A CN202311055998.0A CN202311055998A CN116870338A CN 116870338 A CN116870338 A CN 116870338A CN 202311055998 A CN202311055998 A CN 202311055998A CN 116870338 A CN116870338 A CN 116870338A
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- self
- balloon
- membrane tube
- balloon body
- liquid
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- 239000007788 liquid Substances 0.000 claims abstract description 181
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims abstract description 32
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- 239000002250 absorbent Substances 0.000 claims 5
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7097—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1018—Balloon inflating or inflation-control devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1018—Balloon inflating or inflation-control devices
- A61M25/10181—Means for forcing inflation fluid into the balloon
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1025—Connections between catheter tubes and inflation tubes
Abstract
The invention discloses an implanted balloon and a balloon implantation assembly, which relate to the technical field of medical instruments and comprise a balloon body and a self-adsorption membrane tube, wherein the interior of the balloon body is used for containing filling liquid; when a certain filling liquid is injected into the balloon body and no support exists in the self-adsorption film tube, the filling liquid in the balloon body applies pressure to the self-adsorption film tube, and the self-adsorption film tube deforms, so that the tube walls of the self-adsorption film tube are flattened and mutually contacted to realize sealing, and the filling liquid in the balloon body cannot flow out reversely through the self-adsorption film tube, so that sealing can be effectively realized; because the sacculus body and the self-absorption membrane tube are fixed in advance, other accessories such as blockage and the like are not needed during sealing, and the loosening can be prevented to avoid the leakage of filling liquid in the sacculus.
Description
Technical Field
The invention relates to the technical field of medical instruments, and further relates to an implantable balloon. In addition, the invention also relates to a balloon implantation assembly.
Background
Under the long-term accumulation of chronic strain, repeated friction between soft tissues or friction between soft tissues and bones causes abrasion and tearing, and small wounds gradually develop to be no more than tearing wounds caused by severe trauma along with the action of daily external force, and when the situation happens, patients usually suffer severe pain and limited local activity functions.
The rotator cuff is a collective term for a group of tendons surrounding the humeral head, which are respectively the subscapularis, the supraspinatus above and the subclavian and small circular muscles behind the anterior shoulder joint. The rotator cuff is tightly connected with the joint capsule, so that not only can the rotation and lifting movement of the shoulder joint be controlled, but also the humeral head can be stabilized on the glenoid, and the rotator cuff plays an important role in the stabilization of the shoulder joint. With the increasing degree of global population aging, the incidence of rotator cuff tear increases year by year, and for the treatment of massive rotator cuff tear (> 5 cm), common rotator cuff repair procedures are less effective after surgery, and currently, rotator cuff balloon implantation under arthroscope is considered to reduce friction between the shoulder and the humeral head or rotator cuff, restore shoulder function and reduce pain. The rotator cuff balloon is in a folded state before implantation, the arthroscope provides a real-time image for positioning and releasing, physiological saline is injected to expand the balloon to a target volume, and finally the balloon is separated from the delivery catheter and then withdrawn from the delivery catheter, and the balloon is sealed. However, in the sealing and separating process of the rotator cuff balloon clinically adopted at present, the problem that filling liquid leaks from the joint of the balloon and the conveying catheter or a sealing element falls off in advance under the action of external force exists, so that the balloon implantation effect is not ideal and even fails.
Other hard tissues (such as bones) are damaged due to larger external force, for example, percutaneous kyphoplasty is performed after vertebral compression fracture, a balloon is singly used or a metal bracket is matched with the balloon to prop open the compressed and collapsed vertebral body, the vertebral body height is restored, a cavity is artificially created, and finally bone cement is poured into the cavity to improve the strength and stability of the vertebral body. However, the balloon is expanded to restore the vertebral body, and then decompression is still needed to be withdrawn from the body, so that the operation is complicated, and the vertebral body can not maintain the height and collapse again in the balloon withdrawal process, so that the restoration is not ideal. In addition, bone cement is freely poured into the vertebral body cavity, and a high risk of bone cement leakage still exists.
How to avoid leakage of the filling liquid inside the balloon is a technical problem to be solved at present for those skilled in the art.
Disclosure of Invention
The invention provides an implanted saccule, which can effectively avoid the problem of loosening leakage by injecting filling liquid and realizing sealing through a self-adsorption membrane tube, and the specific scheme is as follows:
an implantable balloon, comprising:
a balloon body, the interior of which is used for containing filling liquid;
the self-adsorption membrane tube is fixed with the balloon body, the joint of the self-adsorption membrane tube and the balloon body is sealed, at least one part of the self-adsorption membrane tube stretches into the balloon body, the self-adsorption membrane tube is provided with a liquid inlet for liquid and a liquid outlet for liquid, the liquid outlet is arranged at the part of the self-adsorption membrane tube stretching into the balloon body, and a distance exists between the joint of the balloon body and the self-adsorption membrane tube and the liquid outlet;
the filling liquid enters the self-absorption membrane tube through the liquid inlet and enters the balloon body from the liquid outlet;
when filling liquid is injected into the balloon body and no support exists in the self-absorption membrane tube, the filling liquid in the balloon body applies pressure to the self-absorption membrane tube, so that the tube walls of the self-absorption membrane tube are flattened and mutually contacted to realize sealing.
Optionally, the self-absorption membrane tube is formed by fixing two films, a sealing connection seam is arranged at the edge, and an unconnected part is reserved at the edge to form the liquid inlet and the liquid outlet.
Optionally, an elastic shrinkage ring is arranged on the balloon body, and the elastic shrinkage ring can generate shrinkage elastic force for pressing the self-absorption membrane tube on the surface of the conveying conduit inserted into the self-absorption membrane tube.
Optionally, the effective distance between the fixed connection part of the balloon body and the self-absorption membrane tube and the liquid outlet is greater than or equal to one third of the length of the balloon body.
Optionally, the overlapping part of the edge of the saccule body and the self-absorption membrane tube is fixed by hot melt welding;
and/or more than one fixing position exists between the part of the self-absorption membrane tube extending into the balloon body and the balloon body.
Optionally, two liquid outlets are arranged, the liquid outlet directions of the two liquid outlets are opposite, and filling liquid flows out to two sides respectively.
Optionally, the balloon body and the self-absorption membrane tube are axisymmetrically arranged about the same symmetry axis.
Optionally, the self-adsorption membrane tube comprises a main pipeline and a branch pipeline, the main pipeline is provided with the liquid inlet, and the branch pipeline is provided with the liquid outlet;
the branch pipeline is communicated with the main pipeline, and filling liquid flowing out of the main pipeline is divided into at least two branches through the branch pipeline.
Optionally, the self-absorption membrane tube is linear extension.
The invention also provides a balloon implantation assembly, which comprises the implantation balloon of any one of the above, and further comprises a conveying conduit, wherein the conveying conduit is used for inserting the self-absorption membrane tube through a liquid inlet, and is used for injecting filling liquid into the self-absorption membrane tube;
the balloon body is capable of being wound around the delivery catheter.
Optionally, the conveying conduit is a flat pipeline made of medical stainless steel materials.
Compared with the prior art, the implanted balloon comprises the balloon body and the self-adsorption membrane tube, wherein the interior of the balloon body is used for containing filling liquid, the self-adsorption membrane tube is fixed on the balloon body, at least one part of the self-adsorption membrane tube stretches into the balloon body, the filling liquid enters the self-adsorption membrane tube through the liquid inlet and flows out of the liquid outlet into the balloon body, and the filling liquid is injected into the balloon body; when a certain filling liquid is injected into the balloon body and no support exists in the self-adsorption film tube, the filling liquid in the balloon body applies pressure to the self-adsorption film tube, and the self-adsorption film tube deforms, so that the tube walls of the self-adsorption film tube are flattened and mutually contacted to realize sealing, and the filling liquid in the balloon body cannot flow out reversely through the self-adsorption film tube, so that sealing can be effectively realized; because the sacculus body and the self-absorption membrane tube are fixed in advance, other accessories such as blockage and the like are not needed during sealing, and the loosening can be prevented to avoid the leakage of filling liquid in the sacculus.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an isometric view of a first embodiment of an implantable balloon according to the present invention;
FIG. 2 is a schematic illustration of a cross-sectional isometric view of the XY plane of FIG. 1;
FIG. 3 is a schematic illustration of a sectional isometric view of the YZ plane of FIG. 1;
FIG. 4 is a schematic cross-sectional elevation view of an XY plane of a second embodiment of an implantable balloon according to the present invention;
FIG. 5 is a schematic illustration of an axial cross-section of an XY plane of a second embodiment of an implantable balloon according to the present invention;
FIG. 6 is an isometric view of one embodiment of a balloon implant assembly provided by the present invention;
FIG. 7 is a cross-sectional isometric view of one embodiment of a balloon implantation assembly provided by the present invention;
FIG. 8 is a top view of one embodiment of a balloon implant assembly provided by the present invention;
FIG. 9 is a schematic front view of an XY plane of a third embodiment of an implantable balloon according to the present invention;
FIG. 10 is a schematic cross-sectional view taken along the direction A-A in FIG. 9;
fig. 11 is a schematic cross-sectional view in the direction B-B of fig. 10.
The drawings include:
the balloon comprises a balloon body 1, an elastic contraction ring 11, a self-absorption membrane tube 2, a liquid inlet 21, a liquid outlet 22, a main pipeline 201, a branch pipeline 202 and a conveying catheter 3.
Detailed Description
The core of the invention is to provide an implantable saccule, which can effectively avoid the problem of loosening leakage by injecting filling liquid from an adsorption membrane tube and realizing sealing.
In order to make the technical solution of the present invention better understood by those skilled in the art, the following detailed description of the present invention and the balloon implantation assembly will be provided with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 5, the present invention provides an implantable balloon, which includes a balloon body 1 and a self-absorption membrane tube 2, wherein the balloon body 1 and the self-absorption membrane tube 2 are made of deformable flexible materials, and the balloon body 1 and the self-absorption membrane tube 2 can be deformed by being stressed. In general, the thickness of the self-adsorption film tube 2 is smaller than that of the balloon body 1, and the self-adsorption film tube 2 is easier to deform.
The balloon body 1 is of a flexible film structure, the inside of the balloon body 1 is of a cavity structure, and the inside of the balloon body 1 is used for containing filling liquid. The self-adsorption membrane tube 2 is fixed on the balloon body 1, the self-adsorption membrane tube 2 and the balloon body 1 are relatively fixed, the joint of the self-adsorption membrane tube 2 and the balloon body 1 is kept sealed, and liquid cannot flow out from the joint of the self-adsorption membrane tube 2 and the balloon body 1. At least one part of the self-adsorption film tube 2 extends into the balloon body 1, namely, the self-adsorption film tube 2 can extend into the balloon body 1 completely or partially into the balloon body 1 and partially exposed out of the balloon body 1; in general, most of the structure of the self-adsorption film tube 2 is located inside the balloon body 1. Referring to fig. 1 to 5, the vicinity of the liquid inlet 21 of the self-adsorption film tube 2 is exposed outside the balloon body 1, so that the balloon body 1 and the self-adsorption film tube 2 are relatively fixed during the production process.
The self-adsorption membrane tube 2 is provided with a liquid inlet 21 for liquid inlet and a liquid outlet 22 for liquid outlet, wherein the liquid outlet 22 is arranged at the part of the self-adsorption membrane tube 2 extending into the balloon body 1, the liquid outlet 22 is at a certain distance from the liquid inlet 21, and a certain distance is reserved between the overlapping connection part of the balloon body 1 and the self-adsorption membrane tube 2 and the liquid outlet 22. The liquid inlet 21 is communicated with the outside, the liquid outlet 22 is positioned in the balloon body 1, and external filling liquid enters the self-adsorption film tube 2 through the liquid inlet 21 and enters the balloon body 1 from the liquid outlet 22; in the invention, the self-adsorption film tube 2 is used as a channel for communicating the balloon body 1 with the outside, filling liquid needs to enter the balloon body 1 through the self-adsorption film tube 2, and other positions of the balloon body 1 are kept sealed, so that the filling liquid is only allowed to enter from the self-adsorption film tube 2.
It should be noted that, during the operation, it is generally necessary to insert the delivery catheter 3 into the self-adsorption membrane tube 2 by means of the delivery catheter 3, the delivery catheter 3 is inserted into the self-adsorption membrane tube 2 from the liquid inlet 21, and the external filling liquid enters the self-adsorption membrane tube 2 through the delivery catheter 3; that is, the external filling liquid enters the self-adsorption film tube 2 through the liquid inlet 21, and is not limited to the liquid directly contacting the liquid inlet 21, and the liquid inlet and the liquid outlet referred to herein are directions in which the liquid flows in and out, not the liquid contacting the liquid inlet 21 and the liquid outlet 22. In general, the liquid enters the self-adsorption film tube 2 through the delivery conduit 3, and the delivery conduit 3 extends into the self-adsorption film tube 2 for a certain distance, so that the filling liquid is not in direct contact with the liquid inlet 21; the liquid enters the self-adsorption film tube 2 from the delivery catheter 3, and the filling liquid directly flows into the balloon body 1 from the liquid outlet 22.
In the process of injecting filling liquid into the balloon body 1 through the delivery catheter 3, the delivery catheter 3 expands the self-adsorption film tube 2, the liquid inlet 21 and the liquid outlet 22 maintain an expanded state, the liquid pressure in the delivery catheter 3 is higher than the liquid pressure in the balloon body 1, the filling liquid can flow into the self-adsorption film tube 2 from the delivery catheter 3 and finally flow into the balloon body 1, the filling liquid enters the space between the balloon body 1 and the self-adsorption film tube 2, and after the filling liquid is injected, the balloon body 1 is jacked and expanded by the filling liquid in the balloon body.
After the filling liquid in the balloon body 1 is filled to a certain degree, the conveying conduit 3 is drawn out from the self-absorption membrane tube 2, and the self-absorption membrane tube 2 loses the support of the conveying conduit 3. When filling liquid is injected into the balloon body 1 and no support exists in the self-adsorption film tube 2, the filling liquid in the balloon body 1 applies pressure to the self-adsorption film tube 2, so that the tube walls of the self-adsorption film tube 2 are flattened and mutually contacted to realize sealing, the filling liquid in the balloon body 1 wraps the self-adsorption film tube 2, the filling liquid forms pressure on the self-adsorption film tube 2, the self-adsorption film tube 2 is of a channel structure, the self-adsorption film tube 2 is soft and can deform, the filling liquid flattens the self-adsorption film tube 2, the tube walls of the self-adsorption film tube 2 are mutually contacted, the liquid outlet 22 is sealed, and the filling liquid in the balloon body 1 cannot reversely flow out to realize sealing. The self-adsorption membrane tube 2 is only required to be smooth and is beneficial to lamination, no requirement is made on the shape of the self-adsorption membrane tube 2, the smooth self-adsorption membrane tube 2 is beneficial to forming larger contact area when being flattened, and liquid cannot flow out from the contact position of the self-adsorption membrane tube 2, so that a better sealing effect is formed.
According to the self-absorption membrane tube, the balloon body 1 and the self-absorption membrane tube 2 are relatively and fixedly connected, a structure capable of being detached independently does not exist, the filling liquid in the balloon body 1 is used for forming automatic sealing through hydraulic pressure, and after a liquid outlet 22 of the self-absorption membrane tube 2 is closed, the balloon body 1 forms an independent closed cavity, and the filling liquid in the balloon body cannot flow out reversely. Compared with the traditional sealing mode through blocking, the leakage problem can be effectively avoided.
It should be noted that, when the filling liquid extrudes the self-adsorption film tube 2 to form a sealing state, the side wall of the self-adsorption film tube 2 is not bonded, and when the self-adsorption film tube 2 is expanded by reinserting the delivery catheter into the self-adsorption film tube 2, the filling liquid in the balloon body 1 can flow out reversely. The implantable balloon has the characteristics of self-sealing and easy separation, the self-adsorption membrane tube 2 is attached by utilizing the pressure in the balloon body 1 after filling, and the sealing is completed while the conveying catheter 3 is withdrawn. When the implanted balloon is impacted by external pressure, the risk of leakage of the filler is greatly reduced, and the sealing stability is good. The conveying catheter 3 is preset in the self-adsorption film tube 2, the balloon is conveyed to a target position, filling liquid is injected to enable the balloon body 1 to be full, then the balloon body is directly withdrawn, conveying and separating operations are simple and easy to operate, and the success rate of balloon implantation is improved.
On the basis of the scheme, the self-adsorption film tube 2 is formed by fixing two films, the two films have the same appearance, the edges of the two films are provided with sealing connection seams, and the fixing mode can adopt hot pressing; and the edges of the two films are reserved with unconnected positions to form a liquid inlet 21 and a liquid outlet 22, and at least two edges of the two films are not contacted to form the liquid inlet 21 and the liquid outlet 22. The self-adsorption film tube 2 is made of two films, the appearance of the self-adsorption film tube 2 is of a flat structure, referring to fig. 3, the appearance of the self-adsorption film tube 2 can be rectangular with the long side of a longitudinal section far larger than the short side or elliptical with the long side far larger than the short side, the thickness of the self-adsorption film tube 2 is equal everywhere when the longitudinal section is rectangular, and the thickness edge of the self-adsorption film tube 2 is thin and the middle is thick when the longitudinal section is elliptical; the shape of the self-adsorbing membrane tube 2 may be other shapes.
When the self-adsorption film tube 2 loses internal support, the filling liquid forms a flat extrusion state of the self-adsorption film tube 2, wrinkles are avoided, the extruded contact area of the self-adsorption film tube 2 is larger, and a better sealing effect is achieved.
It should be noted that the present invention does not exclude the design of the self-adsorbing membrane tube 2 with other shapes such as a cylinder, and these specific forms should be included in the scope of the present invention.
Preferably, as shown in fig. 9, 10 and 11, in this embodiment, there is a part of annular overlapping surface between the balloon body 1 and the self-absorption membrane tube 2, and not only a circle of overlapping line. The balloon body 1 is provided with the elastic shrinkage ring 11, the elastic shrinkage ring 11 is positioned near the overlapping line of the balloon body 1 and the self-adsorption film tube 2, the elastic shrinkage ring 11 is close to the liquid inlet 21, and the elastic shrinkage ring 11 can generate shrinkage elasticity for pressing the self-adsorption film tube 2 on the surface of the conveying conduit 3. The conveying pipe 3 is used for being inserted into the self-adsorption film pipe 2 to form a support for the self-adsorption film pipe 2, the elastic shrinkage ring 11 has a shrinkage trend, when the conveying pipe 3 is inserted into the self-adsorption film pipe 2, the elastic shrinkage ring 11 surrounds the outside of the conveying pipe 3, the elastic force of the elastic shrinkage ring 11 enables the self-adsorption film pipe 2 to be tightly pressed on the conveying pipe 3, and the elastic shrinkage ring 11 is arranged. After the elastic ring 11 is added, the gap between the conveying pipe 3 and the self-adsorption film pipe 2 is slightly larger, the surface area is increased, the back pressure is firmer, and the sealing is better.
The effective distance between the fixed connection part of the balloon body 1 and the self-absorption membrane tube 2 and the liquid outlet 22 is more than or equal to one third of the length of the balloon body 1; as shown in fig. 2 and fig. 4, the effective distance from the liquid inlet 21 to the liquid outlet 22 is shown by a dotted line a, the effective distance is the length of the central line of the pipeline from the liquid inlet 21 to the liquid outlet 22, and the longer the effective distance from the liquid inlet 21 to the liquid outlet 22 is, the better the sealing effect is achieved; as shown in fig. 4, L represents the length of the balloon body 1, and the effective distance between the fixed connection point of the balloon body 1 and the self-adsorption film tube 2 and the liquid outlet 22 is greater than or equal to one third of the length of the balloon body 1, so that the sufficiency of sealing can be ensured, and the longer the effective distance is, the longer the flowing distance of the filling liquid in the self-adsorption film tube 2 is, the longer the sealing length formed after the self-adsorption film tube 2 is extruded is.
In a specific embodiment, the present invention is fixed by hot-melt welding at the overlapping portion of the balloon body 1 and the self-absorption membrane tube 2, and as shown in fig. 4, the overlapping portion is a portion where the balloon body 1 and the self-absorption membrane tube 2 intersect and contact. The other parts of the balloon body 1 are kept in a sealed state.
More than one fixing position exists between the part of the self-adsorption film tube 2 extending into the balloon body 1 and the balloon body 1, and as shown in the combination of fig. 2 and 3, no fixing point exists between the part of the self-adsorption film tube 2 extending into the balloon body 1 and the balloon body 1; as shown in fig. 4 and 5, there is a fixed point between the balloon body 1 and the portion of the self-adsorbing membrane tube 2 extending into the balloon body 1, and the more the fixed point between the self-adsorbing membrane tube 2 and the balloon body 1, the unnecessary deformation of the self-adsorbing membrane tube 2 in the balloon body 1 before the conveying catheter 3 is inserted into the self-adsorbing membrane tube 2 can be avoided, and the balloon body can avoid the twisting and winding of the self-adsorbing membrane tube 2.
The two liquid outlets 22 are arranged in opposite directions, the liquid outlet direction refers to the direction in which the filling liquid flows into the balloon body 1 through the liquid outlet 22, the opposite direction refers to the direction in which the filling liquid flows out from the two liquid outlets 22 and moves away from each other, and the filling liquid flows out to two sides respectively. Referring to fig. 2, 4 and 5, arrows indicate the flow direction of the filling liquid, and the two liquid outlets 22 discharge the filling liquid in opposite directions, respectively, and the two filling liquids are discharged in different directions, respectively, so that the balloon body 1 can be more uniformly expanded from the wound state. In general, the direction of filling from the liquid inlet 21 and the direction of discharging from the liquid outlet 22 are not collinear, and if the directions are collinear, only one liquid outlet 22 is formed, and the expansion speed of the balloon body 1 is reduced.
On the basis of any one of the above technical solutions and the mutual combination thereof, the balloon body 1 and the self-absorption membrane tube 2 of the present invention are axisymmetrically arranged about the same symmetry axis. As shown in fig. 2 and 4, the balloon body 1 itself is axisymmetrically disposed, the self-adsorption film tube 2 itself is axisymmetrically disposed, and the symmetry axes of both the balloon body 1 and the self-adsorption film tube 2 are collinear. The two liquid outlets 22 are symmetrically arranged, and filling liquid pulled out by the two liquid outlets 22 flows towards two sides respectively, so that the balloon body 1 is uniformly unfolded. The two sides of the section of the balloon body 1 with the axis of the self-adsorption film tube 2 have the same volume, so that the number of layers of the balloon body 1 wound on the conveying catheter 3 at the two sides can be reduced, the expansion process is smoother, and if the number of winding layers is too large, the balloon can not be smoothly opened after being filled with the filling liquid.
Referring to fig. 2, the self-adsorption membrane tube 2 provided by the invention comprises a main pipeline 201 and a branch pipeline 202, wherein the main pipeline 201 and the branch pipeline 202 in fig. 2 are crossed in a T shape, and can also be crossed in a Y shape. The main pipeline 201 is provided with a liquid inlet 21, the branch pipeline 202 is provided with a liquid outlet 22, the liquid inlet 21 is positioned at the tail end of the main pipeline 201, the liquid outlet 22 is positioned at the tail end of the branch pipeline 202, the branch pipeline 202 and the main pipeline 201 are mutually communicated, filling liquid flowing out of the main pipeline 201 is divided into at least two branches through the branch pipeline 202, the filling liquid is divided into two paths to flow, and each flowing branch can respectively discharge the filling liquid.
The self-adsorbing membrane tube 2 in fig. 2 is T-shaped, integrally flat, and folds together with the balloon when curled and compressed. Aiming at the structural characteristics (wide transverse direction and narrow longitudinal direction) of the rotator cuff saccule, the film ensures that the saccule is filled more uniformly and rapidly.
In the structure shown in fig. 2, two branch pipes 202 are provided, and four or six equal numbers of branch pipes 202 may be provided. The axis of the branch pipeline 202 and the axis of the main pipeline 201 can be perpendicular, or can be in other included angles. Two branch pipes 202 symmetrical to each other meet the main pipe 201 at the same point, but an asymmetrical branch pipe 202 may meet the main pipe 201 at a different position.
The self-adsorption film tube 2 extends in a linear manner, and is shown in fig. 4, wherein the upper end of the self-adsorption film tube 2 is fixed with the balloon body 1, and the vicinity of the liquid inlet 21 at the lower end of the self-adsorption film tube 2 is fixed with the balloon body 1. There are two fixation points for the self-adsorbing membrane tube 2 and the balloon body 1. The liquid outlet 22 is arranged at a position close to the upper end of the self-absorption membrane tube 2. The left and right sides of the side wall of the self-absorption membrane tube 2 are respectively provided with a liquid outlet 22, so that filling liquid can be discharged from the left and right sides respectively.
The self-adsorption film tube 2 adopts linear extension, so that the folding is convenient to a little; the self-adsorption membrane tube 2 adopts a T-shaped branch structure to branch, so that the symmetrical state is required to be kept when the self-adsorption membrane tube is folded, and the T-shaped branch structure is adopted to support the conveying guide tube 3 only in the axial direction, so that the sealing is better.
Referring to fig. 5, the self-adsorption film tube 2 is rectangular in shape, flat in whole, and easy to contact and attach after withdrawing the delivery catheter 3. The two ends of the self-adsorption film tube 2 are fixed with the balloon body 1 through heat sealing and pressing, the far end of the self-adsorption film tube is provided with a liquid outlet 22 which is communicated with the inner cavity of the balloon, and the filling process is stable and reliable.
The invention also provides a balloon implantation assembly, which comprises the implantation balloon, and further comprises a conveying conduit 3, wherein the balloon body 1 is in a winding and folding state as shown in fig. 6, 7 and 8, the conveying conduit 3 is used for being inserted into the self-adsorption membrane tube 2 through a liquid inlet 21, the length of the conveying conduit 3 inserted into the self-adsorption membrane tube 2 is smaller than the length of the self-adsorption membrane tube 2, the conveying conduit 3 cannot penetrate through the self-adsorption membrane tube 2, and a port inside the self-adsorption membrane tube 2 is kept sealed. The delivery catheter 3 is used for injecting filling liquid into the self-adsorption membrane tube 2, and after the filling liquid is injected, the balloon body 1 expands and unfolds from a winding and folding state; the delivery catheter 3 is a pipe with certain rigidity, can play a supporting role on the self-absorption membrane tube 2, and the balloon body 1 can be wound on the delivery catheter 3. The outer diameter of the conveying conduit 3 is basically equal to the inner diameter of the self-adsorption film tube 2, the conveying conduit 3 and the self-adsorption film tube 2 can be connected relatively through friction force, when the conveying conduit 3 is filled with filling liquid to the balloon body 1 through the self-adsorption film tube 2, the balloon body 1 expands and expands, friction force formed by soft tissues and bones on the balloon body 1 is larger than friction force between the conveying conduit 3 and the self-adsorption film tube 2, and when the conveying conduit 3 is pulled out, the position of the balloon body 1 is basically unchanged.
The sacculus body 1 and the self-absorption membrane tube 2 can be made of biodegradable medical polymer materials or biocompatible materials according to clinical requirements; if the implantable balloon is required to replace tissues and organs in the human body, a biocompatible material is preferred; biodegradable materials are preferred if the implantable balloon provides temporary auxiliary support.
The biocompatible material can be one or a mixture of more of polyester, polyamide, polyvinyl chloride, nylon, polyurethane, silica gel and the like. The biodegradable material can be one or more of polyethylene glycol, polylactic acid-glycolic acid copolymer (PLGA), polylactic acid, polycaprolactone (PCL), poly L-lactide-caprolactone, polypeptide, collagen, methylcellulose, etc.
The delivery catheter 3 is preferably made of medical stainless steel material and is shaped as a flat tube, facilitating closure of the self-adsorbing film after withdrawal of the delivery catheter. The conveying conduit 3 is matched with the self-adsorption film tube 2 and is preset in the sacculus body 1. The far end of the conveying conduit 3 is provided with a liquid injection port which is matched with the self-absorption membrane tube 2 to inject filling liquid into the sacculus body 1. The filling liquid may be a liquid or semi-solid, preferably physiological saline.
Fig. 6, 7 and 8 are schematic views of the rotator cuff structure. The balloon body 1 is in a folded state in a non-working state, for example, the balloon body 1 is compressed in a curling mode, the balloon body 1 in the curled and compressed state is accommodated in a protective sheath, and the protective sheath is an auxiliary instrument for operation.
The conveying conduit 3 is preset in the self-adsorption film tube 2, and the size of the conveying conduit is matched with the channel of the self-adsorption film tube 2. During implantation, a small incision is created by using a surgical knife, a puncture needle is matched with a puncture sheath group to create a working channel, a balloon and a protective sheath are delivered to a target position along the working channel, physiological saline is injected into the balloon body 1 through the conveying catheter 3, the conveying catheter 3 is withdrawn after filling is completed, the self-absorption membrane tube 2 loses support, and the balloon body 1 is automatically attached under the action of internal pressure to complete sealing.
The balloon implantation assembly can also be used for forming the vertebral body, and bone cement added with the biodegradable developer enters the balloon body 1 through the conveying conduit 32 to expand the balloon body, so as to drive the compressed vertebral body to reset. The balloon expansion degree is observed through X-ray equipment, and after the vertebral body is reset to the ideal height, the conveying catheter 3 is directly withdrawn, and the balloon body 1 is left in the vertebral body to form stable support.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. An implantable balloon, comprising:
a balloon body (1) having an interior for containing a filling liquid;
the self-adsorption membrane tube (2) is fixed with the balloon body (1) and sealed with the joint of the balloon body (1), at least one part of the self-adsorption membrane tube (2) stretches into the balloon body (1), the self-adsorption membrane tube (2) is provided with a liquid inlet (21) for liquid inlet and a liquid outlet (22) for liquid outlet, the liquid outlet (22) is arranged at the part of the self-adsorption membrane tube (2) stretching into the balloon body (1), and a distance exists between the joint of the balloon body (1) and the self-adsorption membrane tube (2) and the liquid outlet (22);
wherein, the filling liquid enters the self-absorption membrane tube (2) through the liquid inlet (21) and enters the balloon body (1) from the liquid outlet (22);
when filling liquid is injected into the balloon body (1) and no support exists in the self-absorption membrane tube (2), the filling liquid in the balloon body (1) applies pressure to the self-absorption membrane tube (2), so that the tube walls of the self-absorption membrane tube (2) are flattened and mutually contacted to realize sealing.
2. The implantable balloon according to claim 1, wherein the self-absorption membrane tube (2) is formed by fixing two films, a sealing connection seam is arranged at the edge, and an unconnected part is reserved at the edge to form the liquid inlet (21) and the liquid outlet (22).
3. An implantable balloon according to claim 1, characterized in that an elastic contraction ring (11) is arranged on the balloon body (1), and the elastic contraction ring (11) can generate contraction elastic force for pressing the self-absorption membrane tube (2) on the surface of a conveying conduit (3) inserted into the self-absorption membrane tube (2).
4. The implantable balloon according to claim 1, characterized in that the effective distance between the fixed connection of the balloon body (1) and the self-absorption membrane tube (2) and the liquid outlet (22) is greater than or equal to one third of the length of the balloon body (1).
5. The implantable balloon according to claim 1, characterized in that the overlapping portion of the edge of the balloon body (1) and the self-absorbent membrane tube (2) is fixed by hot-melt welding;
and/or more than one fixing position exists between the part of the self-absorption membrane tube (2) extending into the balloon body (1) and the balloon body (1).
6. The implantable balloon according to claim 1, wherein two liquid outlets (22) are arranged, the liquid outlet directions of the two liquid outlets (22) are opposite, and filling liquid flows out to two sides respectively.
7. An implantable balloon according to any one of claims 1 to 6, characterized in that the balloon body (1) and the self-absorbent membrane tube (2) are arranged axisymmetrically with respect to the same symmetry axis.
8. The implantable balloon according to claim 7, wherein the self-absorption membrane tube (2) comprises a main pipeline (201) and a branch pipeline (202), the main pipeline (201) is provided with the liquid inlet (21), and the branch pipeline (202) is provided with the liquid outlet (22);
the branch pipe (202) and the main pipe (201) are mutually communicated, and the filling liquid flowing out of the main pipe (201) is divided into at least two branches through the branch pipe (202).
9. An implantable balloon according to claim 7, characterized in that the self-absorbent membrane tube (2) is rectilinear extension.
10. A balloon implantation assembly comprising an implantable balloon according to any one of claims 1 to 9, further comprising a delivery catheter (3), said delivery catheter (3) being for insertion of said self-absorbent membrane tube (2) via a liquid inlet (21), said delivery catheter (3) being for injection of a filling liquid into said self-absorbent membrane tube (2);
the balloon body (1) can be wound around the delivery catheter (3).
11. Balloon implantation assembly according to claim 10, wherein the delivery catheter (3) is a flat tube made of medical stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311055998.0A CN116870338A (en) | 2023-08-22 | 2023-08-22 | Implantable balloon and balloon implantation assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311055998.0A CN116870338A (en) | 2023-08-22 | 2023-08-22 | Implantable balloon and balloon implantation assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116870338A true CN116870338A (en) | 2023-10-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311055998.0A Pending CN116870338A (en) | 2023-08-22 | 2023-08-22 | Implantable balloon and balloon implantation assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116870338A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117695064A (en) * | 2024-02-06 | 2024-03-15 | 上海珀利医用材料有限公司 | Implantable saccule device |
-
2023
- 2023-08-22 CN CN202311055998.0A patent/CN116870338A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117695064A (en) * | 2024-02-06 | 2024-03-15 | 上海珀利医用材料有限公司 | Implantable saccule device |
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