CN107981969B - Replacement bionic bracket for glaucoma internal drainage - Google Patents
Replacement bionic bracket for glaucoma internal drainage Download PDFInfo
- Publication number
- CN107981969B CN107981969B CN201711467643.7A CN201711467643A CN107981969B CN 107981969 B CN107981969 B CN 107981969B CN 201711467643 A CN201711467643 A CN 201711467643A CN 107981969 B CN107981969 B CN 107981969B
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- China
- Prior art keywords
- schlemm
- pipe
- supporting part
- wall
- tube
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 208000010412 Glaucoma Diseases 0.000 title claims abstract description 20
- 239000011664 nicotinic acid Substances 0.000 title claims description 14
- 210000001742 aqueous humor Anatomy 0.000 claims abstract description 11
- 230000004410 intraocular pressure Effects 0.000 abstract description 7
- 230000017531 blood circulation Effects 0.000 abstract description 3
- 239000007943 implant Substances 0.000 abstract description 2
- 238000002513 implantation Methods 0.000 abstract description 2
- 238000001356 surgical procedure Methods 0.000 description 9
- 230000010339 dilation Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 208000002352 blister Diseases 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000001603 reducing effect Effects 0.000 description 3
- 230000001384 anti-glaucoma Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 201000002862 Angle-Closure Glaucoma Diseases 0.000 description 1
- 208000024304 Choroidal Effusions Diseases 0.000 description 1
- 206010008783 Choroidal detachment Diseases 0.000 description 1
- 206010022945 Iris adhesions Diseases 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 208000028389 Nerve injury Diseases 0.000 description 1
- 206010030043 Ocular hypertension Diseases 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 206010030348 Open-Angle Glaucoma Diseases 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 206010066902 Surgical failure Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 210000002159 anterior chamber Anatomy 0.000 description 1
- 230000000340 anti-metabolite Effects 0.000 description 1
- 229940100197 antimetabolite Drugs 0.000 description 1
- 239000002256 antimetabolite Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 239000003889 eye drop Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008764 nerve damage Effects 0.000 description 1
- 210000001328 optic nerve Anatomy 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 230000037390 scarring Effects 0.000 description 1
- 210000003786 sclera Anatomy 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000001585 trabecular meshwork Anatomy 0.000 description 1
Images
Classifications
-
- 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
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00781—Apparatus for modifying intraocular pressure, e.g. for glaucoma treatment
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The utility model provides a glaucoma internal drainage replaces bionical support, is equipped with the breach that will draw into support body inside with aqueous humor on the lateral wall of columniform body, and the both ends of columniform body still are equipped with supporting part, the diameter of supporting part be greater than the diameter of body, the supporting part at both ends of body and the inner wall interference fit of Schlemm pipe, during the implantation, the Schlemm pipe of one side is plugged into with columniform body in the incision department of Schlemm pipe, moves the bionical support that will be located Schlemm pipe one side toward the opposite side again, until the breach corresponds with the incision of the outer wall of Schlemm pipe on the lateral wall of columniform body, accomplish to implant, only need a bionical support can, prop up the Schlemm mouth of pipe, can drain aqueous humor and get into the Schlemm pipe, the collection pipe flows into blood circulation at last, effectively reduces intraocular pressure.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a bionic bracket for replacing glaucoma internal drainage.
Background
When glaucoma is recognized as a type of optic nerve damage disease caused by pathological ocular hypertension, control of intraocular pressure has become a major means of glaucoma treatment. Although anti-glaucoma drugs, laser technology, offer technology and possibilities for controlling intraocular pressure, a significant fraction of glaucoma patients eventually have to receive surgical treatment due to the specificity of the disease. Currently, the main surgical procedure for glaucoma is trabeculectomy, but glaucoma filtration surgery has many uncertain factors and relatively high complications such as postoperative low intraocular pressure, superficial anterior chamber, choroidal detachment, macular cystoid edema, surgical failure, bleb scarring, and the like. The search for a safe and reliable surgical method has been a direction of effort for ophthalmic workers.
The development of glaucoma surgery, ranging from total sclerectomy to trabecular resection under scleral flap protection, is a leap, avoiding some serious postoperative complications; from traditional trabeculectomy to modern modified trabeculectomy, including the use of antimetabolite drugs and the use of adjustable sutures, further reduces the risk of surgery and improves the long-term efficacy. Trabeculectomy, however, still does not effectively control the amount of drainage, and is therefore not an ideal surgical procedure. In this case, the non-penetrating glaucoma surgery is again proposed.
After the non-penetrating glaucoma surgery was introduced into China from the 90 th century, a great deal of clinical and basic research work was done by expert scholars at home. The skill and post-operation treatment of non-penetrating glaucoma surgery are continuously developed and perfected, and many reports are made at home and abroad. The tubular adhesive dilation forming operation Canaloplasty is a new anti-glaucoma operation technology which appears in recent years, is a non-filtering operation, and is characterized in that a suture is implanted into a Schlemm tube through a special micro-catheter, the Schlemm tube and trabecular meshwork are expanded, and a natural aqueous outflow channel is reconstructed, so that the intraocular pressure is reduced, and glaucoma is treated. The non-filtering bleb-dependent operation avoids a series of complications such as dry and uncomfortable eye surface, changed immune structure, easy infection and the like caused by the non-filtering bleb-dependent operation, is increasingly focused by ophthalmologists, and is clinically applied to the clinic, so that the eye drop has good and safe ocular pressure reducing effect. However, since the tubular dilation forming operation requires special equipment and materials, the cost is high, the operation is complex, the requirement on the operation doctor is high, and the current research shows that the tubular dilation forming operation is only suitable for open-angle glaucoma, and the closed-angle glaucoma becomes an operation contraindication due to the blocking of the iris adhesion at the angle, so that the tubular dilation forming operation cannot be widely applied to clinic.
The prior internal drainage bionic scaffold for glaucoma needs to be cut on the outer wall of the Schlemm pipe to form a notch when the Schlemm pipe is implanted, and then the two sections of independent internal drainage bionic scaffolds are respectively placed in the Schlemm pipes on the two sides in the notch.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a bionic bracket for replacing glaucoma internal drainage.
The technical scheme adopted by the invention is as follows: the utility model provides a replace bionical support in glaucoma internal drainage, includes cylindrical body, the body in the middle of be hollow structure, the lateral wall of body on be equipped with the breach that will the aqueous humor introduce the support body inside, the lateral wall of body on the breach with the outer wall of Schlemm pipe cut the edge of a knife corresponding, cylindrical body's both ends still be equipped with supporting part, the diameter of supporting part be greater than the diameter of body, the supporting part at both ends of body and the inner wall interference fit of Schlemm pipe.
The notch is a circular arc notch.
The length of the pipe body is 12mm, and the length of the notch is 4mm.
The supporting part is spherical, and the outer diameter of the spherical supporting part is larger than the diameter of the pipe body.
The middle of the spherical supporting part is provided with a through hole, and the through hole is communicated with the middle of the pipe body.
The beneficial effects of the invention are as follows: the invention provides a glaucoma internal drainage replacement bionic bracket, which is characterized in that a notch for introducing aqueous humor into the inside of a bracket tube body is arranged on the side wall of a cylindrical tube body, supporting parts are further arranged at two ends of the cylindrical tube body, the diameters of the supporting parts are larger than those of the tube body, the supporting parts at two ends of the tube body are in interference fit with the inner wall of a Schlemm tube, when the bionic bracket is implanted, the cylindrical tube body is plugged into the Schlemm tube at the notch of the Schlemm tube, then the bionic bracket positioned at one side of the Schlemm tube is moved to the other side until the notch on the side wall of the cylindrical tube body corresponds to the cut edge of the outer wall of the Schlemm tube, implantation is completed, and the Schlemm tube orifice is supported by only one bionic bracket, so that aqueous humor can be drained into the Schlemm tube and finally flows into a collecting tube to flow into blood circulation, thereby effectively reducing intraocular pressure.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
In the figure, the tube body is 1-notched, the support part is 3-and the through hole is 31-.
Detailed Description
The invention will now be further described with reference to fig. 1.
Examples
The utility model provides a glaucoma internal drainage replacement bionic support, includes cylindrical body (1), body (1) in the middle of be hollow structure, the lateral wall of body (1) on be equipped with breach (2) inside with aqueous humor introduction support body (1), breach (2) be convex breach (2). The utility model discloses a support structure for a Schlemm pipe, including a support body (1), a support body (1) and a support body, wherein a notch (2) on the side wall of the tube body (1) corresponds to a cut-open knife edge of the outer wall of the Schlemm pipe, the two ends of the cylindrical tube body (1) are also provided with the support body (3), the diameter of the support body (3) is larger than that of the tube body (1), and the support body (3) at the two ends of the tube body (1) are in interference fit with the inner wall of the Schlemm pipe. The supporting part (3) is spherical, and the outer diameter of the spherical supporting part (3) is larger than the diameter of the pipe body (1). The middle of the spherical supporting part (3) is provided with a through hole (31), and the through hole (31) is communicated with the middle of the pipe body (1).
The length of the pipe body (1) is 12mm, and the length of the notch (2) is 4mm.
The bionic bracket placing process comprises the following steps:
the conventional preparation depth two-layer sclera lamella of operation, cut the Schlemm pipe in the art to open the outer wall of pipe, fill in the Schlemm pipe of one side with columniform body in the incision department of Schlemm pipe, move the bionical support that is located Schlemm pipe one side to the opposite side again, until the breach corresponds with the incision of the outer wall of Schlemm pipe on the lateral wall of columniform body, accomplish to implant promptly, only need a bionical support can, prop up Schlemm mouth of pipe, aqueous humor can drain entering Schlemm pipe this moment, and support whole pipeline. The aqueous humor is converged into the collecting pipe through the Schlemm pipe and finally flows into the blood circulation, so that the internal drainage of the aqueous humor in the eye is realized, and the purpose of effectively reducing the intraocular pressure is achieved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (1)
1. The utility model provides a glaucoma internal drainage replaces bionical support, includes cylindrical body (1), body (1) in the middle of be hollow structure, its characterized in that, along the crooked direction of body (1), be equipped with on the lateral wall of body (1) be used for introducing the inside convex breach (2) of support body (1) with the aqueous humor, lateral wall on body (1) breach (2) correspond with the incision of the external wall of Schlemm pipe, cylindrical body (1) both ends still be equipped with supporting part (3), supporting part (3) are spherical, the external diameter of spherical supporting part (3) be greater than the diameter of body (1), supporting part (3) and Schlemm's pipe's inner wall interference fit of both ends of body (1), the centre of spherical supporting part (3) be equipped with through-hole (31), through-hole (31) and body (1) intermediate be linked together; the length of the pipe body (1) is 12mm, and the length of the notch (2) is 4mm; the cylindrical tube body (1) of the bionic support is used for plugging one side of the Schlemm tube from the notch of the Schlemm tube, and then the bionic support positioned on one side of the Schlemm tube moves to the other side until the notch (2) on the side wall of the cylindrical tube body (1) corresponds to the cut edge of the outer wall of the Schlemm tube, so that aqueous humor can flow into the Schlemm tube from the notch (2) and flow into the two ends of the cylindrical tube body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711467643.7A CN107981969B (en) | 2017-12-29 | 2017-12-29 | Replacement bionic bracket for glaucoma internal drainage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711467643.7A CN107981969B (en) | 2017-12-29 | 2017-12-29 | Replacement bionic bracket for glaucoma internal drainage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107981969A CN107981969A (en) | 2018-05-04 |
| CN107981969B true CN107981969B (en) | 2023-07-14 |
Family
ID=62042616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711467643.7A Active CN107981969B (en) | 2017-12-29 | 2017-12-29 | Replacement bionic bracket for glaucoma internal drainage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107981969B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111803273B (en) * | 2020-08-20 | 2024-09-13 | 北京大学第三医院（北京大学第三临床医学院） | Schlemm's canal expansion stent and expansion method |
| CN115177433B (en) * | 2022-09-13 | 2022-11-18 | 山东百多安医疗器械股份有限公司 | Degradable zinc alloy glaucoma drainage stent |
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| CN1208602A (en) * | 1997-08-15 | 1999-02-24 | 沙夫豪森格里斯哈伯股份有限公司 | Method and device to improve aqueous humor drainage in eye |
| US6450984B1 (en) * | 1999-04-26 | 2002-09-17 | Gmp Vision Solutions, Inc. | Shunt device and method for treating glaucoma |
| RU2317048C1 (en) * | 2006-10-26 | 2008-02-20 | Федеральное государственное учреждение "Межотраслевой научно-технический комплекс "Микрохирургия глаза" имени академика С.Н. Федорова Федерального агентства по здравоохранению и социальному развитию" | Surgical method for treating open angle glaucoma cases |
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| DE19840047B4 (en) * | 1998-09-02 | 2004-07-08 | Neuhann, Thomas, Prof.Dr.med. | Device for the targeted improvement and / or permanent guarantee of the permeability for eye chamber water through the trabecular mechanism in the Schlemm's Canal |
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| CN1208602A (en) * | 1997-08-15 | 1999-02-24 | 沙夫豪森格里斯哈伯股份有限公司 | Method and device to improve aqueous humor drainage in eye |
| US6450984B1 (en) * | 1999-04-26 | 2002-09-17 | Gmp Vision Solutions, Inc. | Shunt device and method for treating glaucoma |
| RU2317048C1 (en) * | 2006-10-26 | 2008-02-20 | Федеральное государственное учреждение "Межотраслевой научно-технический комплекс "Микрохирургия глаза" имени академика С.Н. Федорова Федерального агентства по здравоохранению и социальному развитию" | Surgical method for treating open angle glaucoma cases |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107981969A (en) | 2018-05-04 |
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