CN108295356B - Cannula for dacryocystorhinostomy and preparation method thereof - Google Patents
Cannula for dacryocystorhinostomy and preparation method thereof Download PDFInfo
- Publication number
- CN108295356B CN108295356B CN201810236109.3A CN201810236109A CN108295356B CN 108295356 B CN108295356 B CN 108295356B CN 201810236109 A CN201810236109 A CN 201810236109A CN 108295356 B CN108295356 B CN 108295356B
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- CN
- China
- Prior art keywords
- drainage tube
- drainage
- sleeve pipe
- tail end
- cannula
- Prior art date
- 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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- 238000002360 preparation method Methods 0.000 title abstract description 6
- 210000003928 nasal cavity Anatomy 0.000 claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000741 silica gel Substances 0.000 claims abstract description 8
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 8
- 238000007493 shaping process Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 230000001954 sterilising effect Effects 0.000 claims abstract description 4
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 4
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 230000003872 anastomosis Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 241000083513 Punctum Species 0.000 abstract description 10
- 238000002513 implantation Methods 0.000 abstract description 9
- 239000007943 implant Substances 0.000 abstract description 4
- 208000015181 infectious disease Diseases 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract description 2
- 208000014674 injury Diseases 0.000 abstract description 2
- 208000024891 symptom Diseases 0.000 abstract description 2
- 206010023644 Lacrimation increased Diseases 0.000 abstract 1
- 230000004317 lacrimation Effects 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 7
- 206010011844 Dacryocystitis Diseases 0.000 description 4
- 201000005471 chronic dacryocystitis Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002674 endoscopic surgery Methods 0.000 description 2
- 241000909851 Epiphora Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 208000016747 lacrimal apparatus disease Diseases 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Images
Classifications
-
- 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- 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
- A61M25/0009—Making of catheters or other medical or surgical tubes
-
- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
-
- 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
- A61M2210/00—Anatomical parts of the body
- A61M2210/06—Head
- A61M2210/0618—Nose
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- External Artificial Organs (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a casing for dacryocystorhinostomy and a preparation method thereof, wherein the casing comprises a drainage tube, wherein an elliptic drainage disc and a tail end fixing screw rod are respectively arranged at two ends of the drainage tube, the drainage tube is hollow, a delivery channel is arranged in the drainage tube, a casing is arranged at the tail end of the drainage tube, and the casing is fixed on the tail end fixing screw rod positioned at a stoma in a nasal cavity through a fastener; selecting a hollow silica gel catheter, and puncturing the hollow silica gel catheter to be used as a drainage tube; both ends of the drainage tube are provided with fittings through sanding; heating and shaping the drainage tube according to the shape requirement, naturally cooling after thermoplastic shaping, and sterilizing for later use; the drainage tube is convenient to implant, only the drainage tube is implanted into the stoma through the lacrimation punctum, an extra traction device is not needed, the time is only consumed for several minutes, complex treatment such as knotting is not needed in the nasal cavity, a patient feels comfortable, no auxiliary injury is caused, the drainage tube is designed into a hollow shape, tears can be normally drained, infection is not easy, and symptoms are obviously relieved during implantation.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a sleeve for dacryocystorhinostomy and a preparation method thereof.
Background
Chronic dacryocystitis is better developed for female patients, the most common method for treating the chronic dacryocystitis is dacryocystitis nasal cavity pore-forming under a nasal endoscope is currently adopted except for the traditional ophthalmological operation, and the domestic operation has been carried out for over twenty years, however, for Chinese women, the volumes of the dacryocystitis and the nasal cavity are relatively small, so that the adhesion at a stoma is easy to narrow and even to be locked, and the operation is failed and recurs, even recurs. However, how to avoid the problem which always troubles the clinic, most of the existing implantation devices are designed for the traditional ophthalmic surgery and are not suitable for the use of the intranasal endoscopic surgery, and the few devices used for the intranasal endoscopic surgery have the problems of difficult implantation, more complications, poor comfort and the like.
The existing implanting device for the nasal endoscope dacryocyst nasal cavity pore-creating operation is mostly a lacrimal passage drainage tube, which enters an upper lacrimal punctum and a lower lacrimal punctum respectively through an upper probe and a lower probe and reaches a pore-creating part downwards, then the head parts of the two probes are pulled into the nasal cavity by a traction hook and are knotted and fixed at the pore-creating part. The existing lacrimal passage drainage tube is difficult to implant, the tractor is long in implantation time, knotting in a nasal cavity is difficult, time-consuming and difficult to accurately position at a pore-forming position, involution of a nasal cavity mucosa flap and a lachrymal sac wall is not facilitated, upper and lower punctum are required to be implanted simultaneously, complications such as tearing the punctum in a shearing way and the like can be caused, the inner canthus is occupied by a pipeline, foreign body sensation is strong, the comfort is poor, and due to the fact that the lacrimal passage drainage tube is a solid body, the epiphora is aggravated during implantation, and infection.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the sleeve for dacryocystorhinostomy and the preparation method thereof, which have the advantages of convenient implantation, simple operation, small rejection effect of patients, better comfort and capability of effectively solving the problems provided by the background technology.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a casing for dacryocystorhinostomy comprises a drainage tube, wherein an elliptical drainage disc and a tail end fixing screw rod are respectively arranged at two ends of the drainage tube, the drainage tube is hollow, a conveying and guiding channel is arranged in the drainage tube, a casing is arranged at the tail end of the drainage tube, and the casing is fixed on the tail end fixing screw rod located at a stoma in a nasal cavity through a fastener.
As a preferable technical scheme, the shape and the size of the drainage tube are completely the same as those of the lacrimal passage.
In a preferred embodiment of the present invention, the sleeve is in the shape of an inverted frustum, and the sleeve and the fastener are connected in a sealing manner by an annular gasket fixed to an inner wall of the sleeve.
In addition, the invention also provides a preparation method of the sleeve for dacryocystorhinostomy, which comprises the following steps:
100, selecting a hollow silica gel catheter, and respectively puncturing two ends of the silica gel catheter by using needles to form communicated small holes as drainage tubes;
step 200, sanding both ends of the drainage tube, additionally arranging an oval drainage disc in one end of the drainage tube, and additionally arranging a tail end fixing screw outside the other end of the drainage tube;
step 300, heating and shaping the drainage tube at 50-60 ℃ according to the shape requirement, naturally cooling after thermoplastic solidification, and sterilizing for later use.
Compared with the prior art, the invention has the beneficial effects that: the drainage tube is convenient to implant, can reach a stoma by only implanting the drainage tube from a punctum, is matched with a lacrimal probe widely used clinically, does not need an additional traction device, takes time for only a few minutes, does not need complex treatment such as knotting in a nasal cavity, only needs to be sleeved with a sleeve and inserted into a fastener, and accords with the operation habit of a rhinoscope operator.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic flow chart of the present invention;
reference numbers in the figures: 1-a drainage tube; 2-an elliptical drainage tray; 3-fixing a screw at the tail end; 4-a conduction channel; 5-sleeving a pipe; 6-a fastener; 7-ring pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the invention provides a cannula for dacryocystorhinostomy, which comprises a drainage tube 1, wherein an elliptical drainage disc 2 and a tail end fixing screw 3 are respectively arranged at two ends of the drainage tube 1, the drainage tube 1 is hollow, a conduction channel 4 is arranged in the drainage tube, the drainage tube 1 is hollow, tears can be normally drained, infection is not easy, and symptom is obviously relieved during implantation, a cannula 5 is arranged at the tail end of the drainage tube 1, and the cannula 5 is fixed on the tail end fixing screw 3 positioned at a stoma in the nasal cavity through a fastener 6.
The implantation is convenient, the drainage tube 1 can reach the stoma only by implanting the lower punctum, the drainage tube is matched with a lacrimal probe which is widely used clinically, an additional traction device is not needed, only several minutes are consumed, and the operation of a clinician is facilitated, and meanwhile, the pain of a patient can be relieved.
Furthermore, the complex treatment of knotting in the nasal cavity can be avoided by the connecting mode of the sleeve 5 and the fastener 6, and the operation habit of a nasal endoscope operator can be compounded only by sleeving the sleeve 5.
In a preferred embodiment, the drainage tube 1 has a shape and size identical to those of the lacrimal passage, and the sleeve 5 has a rounded frustum shape and is hermetically connected between the sleeve 5 and the fastener 6 by an annular pad 7 fixed on the inner wall of the sleeve 5.
The drainage tube 1 is only limited to the dynamic fixation at the lower lacrimal punctum, the structure of the drainage tube 1 conforms to the anatomical physiological structure of the lacrimal duct of the human body, foreign matters are not at the inner canthus, and patients feel comfortable without side injury.
In addition, as a preferred embodiment of the present invention, as shown in fig. 2, there is provided a method for preparing a cannula for dacryocystorhinostomy, comprising the steps of:
100, selecting a hollow silica gel catheter, and respectively puncturing two ends of the silica gel catheter by using needles to form communicated small holes as drainage tubes;
step 200, sanding both ends of the drainage tube, additionally arranging an oval drainage disc in one end of the drainage tube, and additionally arranging a tail end fixing screw outside the other end of the drainage tube;
step 300, heating and shaping the drainage tube at 50-60 ℃ according to the shape requirement, naturally cooling after thermoplastic solidification, and sterilizing for later use.
In this embodiment, there is also provided and used a method, which is specifically as follows:
firstly, opening a lower punctum, implanting a drainage tube through a lacrimal probe, and enabling the drainage tube to reach a stoma;
secondly, adjusting the position of the drainage tube to ensure that the elliptical drainage tray is attached to the inner wall of the lacrimal sac;
finally, the cannula is inserted after the drainage tube is brought to the nasal stoma and is fixed by a fastener.
In conclusion, the invention has the advantages of simple and easy operation, stable and comfortable implantation and satisfactory shaping effect by the design of the sleeve coupled at the lachrymal sac and nasal cavity pore-forming part.
In summary, the main features of the present invention are: the drainage tube is convenient to implant, can reach a stoma by only implanting the drainage tube from the lacrimal punctum, is matched with a lacrimal probe widely used clinically, does not need an additional traction device, takes time for only a few minutes, does not need complex treatment such as knotting in a nasal cavity, only needs to be sleeved with a sleeve and inserted into a fastener, and accords with the operation habit of a rhinoscope operator.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. A cannula for dacryocystorhinostomy, comprising: including drainage tube (1), drainage tube (1) both ends are equipped with oval drainage dish (2) and terminal clamping screw (3) respectively, just drainage tube (1) is the cavity form, is equipped with defeated passageway (4) of leading in drainage tube inside, drainage tube (1) end is equipped with sleeve pipe (5), sleeve pipe (5) are fixed on terminal clamping screw (3) that are located the nasal cavity inside and make hole department through fastener (6), sleeve pipe (5) are radius platform form, and between sleeve pipe (5) and fastener (6) through fixing annular pad (7) the sealing connection on sleeve pipe (5) inner wall.
2. A cannula for lachrymal-nasal anastomosis, according to claim 1, characterized in that said drainage tube (1) has a shape and size identical to those of the lacrimal duct.
3. A cannula for lachrymal nasal anastomosis according to any one of claims 1-2, further comprising a method of manufacture comprising the steps of:
100, selecting a hollow silica gel catheter, and respectively puncturing two ends of the silica gel catheter by using needles to form communicated small holes as drainage tubes;
step 200, sanding both ends of the drainage tube, additionally arranging an oval drainage disc in one end of the drainage tube, and additionally arranging a tail end fixing screw outside the other end of the drainage tube;
step 300, heating and shaping the drainage tube at 50-60 ℃ according to the shape requirement, naturally cooling after thermoplastic solidification, and sterilizing for later use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810236109.3A CN108295356B (en) | 2018-03-21 | 2018-03-21 | Cannula for dacryocystorhinostomy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810236109.3A CN108295356B (en) | 2018-03-21 | 2018-03-21 | Cannula for dacryocystorhinostomy and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108295356A CN108295356A (en) | 2018-07-20 |
| CN108295356B true CN108295356B (en) | 2020-04-07 |
Family
ID=62850317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810236109.3A Active CN108295356B (en) | 2018-03-21 | 2018-03-21 | Cannula for dacryocystorhinostomy and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108295356B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3949750A (en) * | 1974-10-07 | 1976-04-13 | Freeman Jerre M | Punctum plug and method for treating keratoconjunctivitis sicca (dry eye) and other ophthalmic aliments using same |
| US5417651A (en) * | 1993-07-01 | 1995-05-23 | Guena; Nicolas | Punctum plug and monocanalicular probe for lacrimal pathology |
| CN2251369Y (en) * | 1995-08-04 | 1997-04-09 | 李绍君 | Casing for curing lacrimal passage obstruction |
| FR2741538B1 (en) * | 1995-11-28 | 2000-01-14 | Fayet Bruno | PROBE AND CONFORMER FOR LACRYMAL TRACKS |
| CN201283017Y (en) * | 2008-11-10 | 2009-08-05 | 王志全 | Drainage tube for dacryocyst and nasal cavity anastomosis operation |
| CN201831985U (en) * | 2010-10-18 | 2011-05-18 | 山东福瑞达医疗器械有限公司 | Drainage device for lacrimal sac operation |
| CN202355481U (en) * | 2011-11-10 | 2012-08-01 | 贺鹏举 | Multi-functional support for nasal dacryocystorhinostomy under endoscope |
| CN106264777A (en) * | 2015-06-08 | 2017-01-04 | 三鼎生物科技股份有限公司 | Auxiliary dacryagogue |
| CN106730083A (en) * | 2017-03-14 | 2017-05-31 | 周峻 | A kind of subcutaneous implantable delivery system hemodialysis catheter |
-
2018
- 2018-03-21 CN CN201810236109.3A patent/CN108295356B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3949750A (en) * | 1974-10-07 | 1976-04-13 | Freeman Jerre M | Punctum plug and method for treating keratoconjunctivitis sicca (dry eye) and other ophthalmic aliments using same |
| US5417651A (en) * | 1993-07-01 | 1995-05-23 | Guena; Nicolas | Punctum plug and monocanalicular probe for lacrimal pathology |
| CN2251369Y (en) * | 1995-08-04 | 1997-04-09 | 李绍君 | Casing for curing lacrimal passage obstruction |
| FR2741538B1 (en) * | 1995-11-28 | 2000-01-14 | Fayet Bruno | PROBE AND CONFORMER FOR LACRYMAL TRACKS |
| CN201283017Y (en) * | 2008-11-10 | 2009-08-05 | 王志全 | Drainage tube for dacryocyst and nasal cavity anastomosis operation |
| CN201831985U (en) * | 2010-10-18 | 2011-05-18 | 山东福瑞达医疗器械有限公司 | Drainage device for lacrimal sac operation |
| CN202355481U (en) * | 2011-11-10 | 2012-08-01 | 贺鹏举 | Multi-functional support for nasal dacryocystorhinostomy under endoscope |
| CN106264777A (en) * | 2015-06-08 | 2017-01-04 | 三鼎生物科技股份有限公司 | Auxiliary dacryagogue |
| CN106730083A (en) * | 2017-03-14 | 2017-05-31 | 周峻 | A kind of subcutaneous implantable delivery system hemodialysis catheter |
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| Publication number | Publication date |
|---|---|
| CN108295356A (en) | 2018-07-20 |
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