CN114652490B - Foldable artificial meniscus - Google Patents
Foldable artificial meniscus Download PDFInfo
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- CN114652490B CN114652490B CN202210547298.2A CN202210547298A CN114652490B CN 114652490 B CN114652490 B CN 114652490B CN 202210547298 A CN202210547298 A CN 202210547298A CN 114652490 B CN114652490 B CN 114652490B
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- Prior art keywords
- balloon
- meniscus
- monomer
- foldable artificial
- artificial meniscus
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/38—Joints for elbows or knees
- A61F2/3872—Meniscus for implantation between the natural bone surfaces
Abstract
The invention aims to provide a foldable artificial meniscus, which solves the problem that the foldable artificial meniscus used under minimally invasive mirror surgery is lacked at present, and comprises: the balloon is formed by combining a plurality of balloon monomers, at least one pressure relief channel is arranged at the joint of the adjacent balloon monomers, the balloon is of a half-moon-shaped structure and is filled with lubricating liquid, the filling amount of the lubricating liquid is 60% -90% of the volume of the balloon, and the upper side film and/or the inner side film of the balloon are/is the permeable film.
Description
Technical Field
The invention relates to the technical field of implants, in particular to a foldable artificial meniscus.
Background
The menisci are the most important components of the human body, the knee joint, and are located between the femoral condyle and the tibial plateau, and are crescent-shaped on the medial and lateral sides. In the process of human motion, the meniscus can move along with the tibia, and in the process of knee joint stretching and bending, the meniscus can deform to adapt to the anatomical form of the knee joint, so that the geometrical form and the motion coordination of the knee joint are well kept, and the knee joint has important functions of bearing load, buffering load, stabilizing the joint, lubricating the joint and the like, and has important physiological effects on the protection of articular cartilage.
The meniscus has a blood supply only in the lateral 1/3 area, and when injury occurs in this area, the meniscus has the potential to recover, but when injury occurs in the medial 2/3 area, the meniscus is difficult to recover and is treated surgically.
Compared with the traditional incision operation, the minimally invasive arthroscopy operation has the advantages of small wound, light pain, quick recovery and less complications. Arthroscopes are a set of precise optical imaging systems, and can enter a joint cavity by using a tiny endoscope through a small operation incision to observe and treat internal pathological changes.
There is a lack of alternative mature meniscal products, particularly menisci that can be used in conjunction with minimally invasive arthroscopic surgery.
Disclosure of Invention
The invention aims to provide a foldable artificial meniscus, and solves the problem that the foldable artificial meniscus used under minimally invasive mirror surgery is lacked at present.
The above object of the present invention is achieved by the following technical solutions:
a foldable artificial meniscus comprising: the balloon is formed by combining a plurality of balloon monomers, at least one pressure relief channel is arranged at the joint of the adjacent balloon monomers, the balloon is of a half-moon-shaped structure and is filled with lubricating liquid, the filling amount of the lubricating liquid is 60% -90% of the volume of the balloon, and the upper side film and/or the inner side film of the balloon are/is the permeable film.
Furthermore, the size of the pressure relief channel is gradually smaller from the outer side to the inner side.
Further, the size of the balloon monomer is gradually reduced from the outer side to the inner side.
Furthermore, the balloon monomer is movably spliced.
Furthermore, one side of the balloon monomer is provided with a groove, the other side of the balloon monomer is provided with a protrusion, and the protrusion is inserted into the groove to realize the connection of the balloon monomer.
Furthermore, the groove is provided with a channel hole, the bulge is provided with a channel, and the channel hole jointly form the pressure relief channel.
Furthermore, the saccule is provided with a butt joint port, and the butt joint port is connected with a conveying device or a liquid filling device.
Further, the docking port is disposed on an outer membrane of the balloon.
In conclusion, the beneficial technical effects of the invention are as follows:
(1) the use of the liquid sac achieves the effect of good pressure receiving and conversion, and can replace the function of a natural meniscus for running;
(2) the shape with high outside and low inside is set to imitate the structure of meniscus, so that the effect is better;
(3) the lubricating liquid and the permeable membrane are used, a small amount of lubricating liquid seeps out after being extruded, the lubricating effect is enhanced, and the friction is reduced;
(4) the semilunar structure formed by combining a series of liquid sac monomers is adopted, the number of the liquid sac monomers at the outer side or the inner side is reduced, and the personalized use of the standard product can be realized.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of a foldable artificial meniscus configuration according to an embodiment of the present invention;
FIG. 2 is a schematic view of a foldable artificial meniscus configuration according to a second embodiment of the invention;
fig. 3 is a schematic view of a foldable artificial meniscus structure according to three embodiments of the present invention.
The specific symbols are:
a balloon-1; a balloon monomer-2; a pressure relief channel-3; permeable membrane-4.
Detailed Description
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings and technical solutions required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
The conception of the foldable artificial meniscus is based on the use of knee arthroscopic surgery, if the foldable artificial meniscus product is available, only the meniscus injury is damaged, the knee joint replacement is not needed, and only the meniscus needs to be replaced; secondly, the foldable artificial meniscus can complete the operation through arthroscopic surgery, reduces the damage to the patient, has short surgery time, is beneficial to the surgical recovery of the patient, and is particularly suitable for the patient with the old degenerative meniscus replacement.
When thinking artifical meniscus, need consider the buffering of pressure, need realize accepting pressure and fine conversion equilibrium pressure, the sacculus is a fine selection, the sacculus is soft, accept can be with pressure conversion to inside liquid after the pressure, realize the conversion and the balance of pressure through the flow of liquid, the shape of knee joint still is considered when the design, sacculus global design is the meniscus, the design is the design that a plurality of sacculus monomers link to each other, reduce gradually to inboard sacculus monomer size from the outside, so strong at the inboard pressure bearing nature of meniscus, wear-resisting, the meniscus outside is loose relatively, the cushioning nature is strong, such design accords with the physiological structure of meniscus.
At least one pressure relief channel is arranged between the balloon monomers and used for connecting the adjacent balloons, and liquid in the balloons can flow in the balloon monomers through the pressure relief channels, so that the smooth transmission and digestion of the pressure borne by the balloon liquid are realized. The pressure relief channels are arranged alternately.
When the liquid in the sacculus is selected, the lubricating liquid is a good option, if the permeable membrane can be combined, the lubricating liquid can be permeated in a small amount when the sacculus is extruded, so that the lubrication of the joint sac cavity is realized. Lubricating liquid and pellicle can be selectively filled in partial sacculus monomer, certainly for the convenience of operation, select whole sacculus to fill lubricating liquid, lubricating liquid's filling volume keep 60% -90% can to lead to the pressure too big and fracture after avoiding overfilling, the osmotic membrane can set up on partial sacculus monomer, the setting of osmotic membrane can be at medial surface, upper surface, lateral surface and lower surface are normal sacculus membrane.
The sacculus is provided with the interface on the surface, has two effects to the interface: firstly, the meniscus is connected with a conveying sheath to finish the conveying of the meniscus, and when the meniscus collecting device is used, the meniscus is contained in the conveying sheath; and secondly, after the meniscus is conveyed to a preset position, the lubricating liquid is conveyed into the saccule through the conveying sheath to complete the implantation of the meniscus.
The first embodiment is as follows:
a foldable artificial meniscus, as shown in fig. 1, comprising: sacculus 1, pressure release channel 3, osmotic membrane 4, sacculus 1 comprises a plurality of sacculus monomers 2, and sacculus 1 is half moon shape structure, and sacculus monomer 2 reduces to the inboard by the outside gradually, sets up an at least pressure release channel 3 between the adjacent sacculus monomer 2, fills 60% -90% lubricating liquid in the sacculus 1, fills 80% lubricating liquid in this embodiment, and the upper side membrane or the inboard membrane of sacculus 1 are osmotic membrane 4.
The outer side membrane of the sacculus 1 is provided with a butt joint port, the meniscus is conveyed through a conveying sheath, the meniscus is contained in the conveying sheath before conveying, pushed out after reaching a preset position through a conveying rod, then the pushing rod is pulled out, the injection rod is connected with the butt joint port, and the lubricating liquid is injected into the sacculus 1.
Example two:
the difference between this embodiment and the first embodiment lies in, the size of the individual sacculus 2 is arranged and is filled with the difference with lubricating liquid, as shown in fig. 2, specifically, the individual sacculus 2 is the same in size, the size of the pressure release channel 3 is gradually reduced from the outside to the inside, lubricating liquid is filled through the butt joint port on the outside membrane, lubricating liquid in each individual sacculus 2 is reduced from the outside to the inside in proper order, and a structure with high outside and low inside is formed.
Example three:
the difference between this embodiment and the first or second embodiment lies in that, as shown in fig. 3, the balloon monomers 2 are of a flat structure, the balloon 1 is formed by combining a series of balloon monomers 2, two sides of each balloon monomer 2 are formed by rigid sealing edges containing a pressure relief channel 3, one side of each balloon monomer is provided with a groove, the other side of each balloon monomer is provided with a protrusion, two adjacent balloon monomers 2 can be fixed by the grooves and the protrusions, and the number of the balloon monomers 2 can be reduced from the outer side or the inner side according to the size of a meniscus of a patient when the balloon is used.
The groove is provided with a channel hole, the protrusion is internally provided with a hollow channel, and after the protrusion is inserted into the groove and fixed, the channel is connected with the channel hole to form a pressure relief channel 3.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (4)
1. A foldable artificial meniscus, comprising: a balloon, a pressure relief channel and a permeable membrane, wherein the balloon consists of
The balloon is of a half-moon structure, lubricating liquid is filled in the balloon, the filling amount of the lubricating liquid is 60-90% of the volume of the balloon, and an upper side film and/or an inner side film of the balloon are permeable films; the size of the balloon monomer is gradually reduced from the outer side to the inner side; the balloon single bodies are movably spliced; one side of the balloon monomer is provided with a groove, the other side of the balloon monomer is provided with a bulge, and the bulge is inserted into the groove to realize the connection of the balloon monomer; the groove is provided with a channel hole, the bulge is provided with a channel, and the channel hole jointly form the pressure relief channel.
2. The foldable artificial meniscus of claim 1, wherein the pressure relief channel is progressively smaller in size from the outer side to the inner side.
3. The foldable artificial meniscus of claim 1 or 2, wherein the balloon is provided with a docking port, the docking port being connected to a delivery device or a liquid-filled device.
4. The foldable artificial meniscus of claim 3, wherein the docking port is provided on the outer membrane of the balloon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210547298.2A CN114652490B (en) | 2022-05-20 | 2022-05-20 | Foldable artificial meniscus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210547298.2A CN114652490B (en) | 2022-05-20 | 2022-05-20 | Foldable artificial meniscus |
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| Publication Number | Publication Date |
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| CN114652490A CN114652490A (en) | 2022-06-24 |
| CN114652490B true CN114652490B (en) | 2022-09-02 |
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| CN202210547298.2A Active CN114652490B (en) | 2022-05-20 | 2022-05-20 | Foldable artificial meniscus |
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Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6419704B1 (en) * | 1999-10-08 | 2002-07-16 | Bret Ferree | Artificial intervertebral disc replacement methods and apparatus |
| CA2473858A1 (en) * | 2002-01-22 | 2003-07-31 | Advanced Bio Surfaces, Inc. | Interpositional arthroplasty system and method |
| EP1807025A1 (en) * | 2004-09-30 | 2007-07-18 | Synecor, LLC | Artificial intervertebral disc nucleus |
| US20090030399A1 (en) * | 2007-07-23 | 2009-01-29 | Kamshad Raiszadeh | Drug Delivery Device and Method |
| US20100268341A1 (en) * | 2009-04-16 | 2010-10-21 | WARSAW ORTHOPEDIC, INC., An Indian Corporation | Minimally invasive expandable vertebral implant and method |
| GB2476124A (en) * | 2009-12-08 | 2011-06-15 | R Thomas Grotz | Inflatable arthroplasty implant |
| US10307257B2 (en) * | 2010-01-22 | 2019-06-04 | Iorthopedics, Inc. | Resilient knee implant and methods |
| WO2012054240A1 (en) * | 2010-10-18 | 2012-04-26 | Synthes Usa, Llc | Implant |
| US9498365B2 (en) * | 2010-10-19 | 2016-11-22 | Apollo Endosurgery, Inc. | Intragastric implants with multiple fluid chambers |
| US9572676B2 (en) * | 2013-03-14 | 2017-02-21 | DePuy Synthes Products, Inc. | Adjustable multi-volume balloon for spinal interventions |
| US9585761B2 (en) * | 2013-03-14 | 2017-03-07 | DePuy Synthes Products, Inc. | Angulated rings and bonded foils for use with balloons for fusion and dynamic stabilization |
| WO2015173733A1 (en) * | 2014-05-13 | 2015-11-19 | Mia Orthopaedic Solutions Ltd. | Meniscus implant |
| CN110613534B (en) * | 2019-10-11 | 2021-11-12 | 杭州锐健马斯汀医疗器材有限公司 | Tearable special-shaped balloon capable of relieving human soft tissue injury and preparation method thereof |
| CN113768556A (en) * | 2020-06-09 | 2021-12-10 | 上海交通大学医学院附属新华医院 | Built-in micro balloon joint distraction device |
| CN112545709A (en) * | 2020-12-21 | 2021-03-26 | 中山大学附属第三医院 | Balloon for treating rotator cuff injury |
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