CN201164535Y - Implantation type artificial dacryosolen with double-lacrimal duct and lacrimal probing means - Google Patents
Implantation type artificial dacryosolen with double-lacrimal duct and lacrimal probing means Download PDFInfo
- Publication number
- CN201164535Y CN201164535Y CNU2008200058892U CN200820005889U CN201164535Y CN 201164535 Y CN201164535 Y CN 201164535Y CN U2008200058892 U CNU2008200058892 U CN U2008200058892U CN 200820005889 U CN200820005889 U CN 200820005889U CN 201164535 Y CN201164535 Y CN 201164535Y
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- lacrimal
- needle tubing
- needle
- closing member
- nook closing
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Abstract
The utility model discloses a double-lacrimal-duct implantation type artificial lacrimal duct, which comprises a flexible duct body with the external diameter of 0.8 to 1.2 mm, wherein, a plurality of through holes with the diameters of 0.25 to 0.5 mm are arrayed on the duct wall of the flexible duct body for forming tear leading holes; both ends of the flexible duct body are respectively connected with an elastic leading wire with the diameter of 0.3 to 0.5 mm; the leading wires are transitionally connected with the connection part of the flexible duct body in a diameter gradual change mode . The utility model also discloses a lacrimal duct probing leading needle composed of a needle tube and a needle core. The artificial lacrimal duct has convenient operation and good effect, and can improve the efficiency of operations.
Description
Technical field
This utility model belongs to and relates to medical apparatus and instruments, is artificial tear duct and special-purpose probing of lacrimal passages guid needle that the treatment obstructed lacrimal passage is used specifically.
Background technology
Obstructed lacrimal passage is the commonly encountered diseases and the frequently-occurring disease of ophthalmology, at present adopts the lumbar anesthesia pipes to carry out the treatment of lacrimal duct abstruction more, not only use inconvenient, put pipe during lumbar anesthesia pipe end need be exposed to the outside, influence patient's outward appearance, and therapeutic effect is unsatisfactory.
The utility model content
The purpose of this utility model is to provide a kind of pair of lacrimal ductule implanted artificial tear duct, and this artificial tear duct is implanted convenient, and result of use is good.
Second purpose of the present utility model also is to provide a kind of artificial tear duct to implant the special-purpose probing of lacrimal passages guiding of usefulness, makes things convenient for the implantation of artificial tear duct.
For realizing first purpose of the present utility model, adopt following technical scheme: a kind of pair of lacrimal ductule implanted artificial tear duct, comprise that one section external diameter is the flexible pipe body of 0.8～1.2mm, being arranged with a plurality of diameters on the tube wall of flexible pipe body is the through hole formation tear drainage hole of 0.25～0.5mm, the elasticity guide wire that respectively to be connected with a diameter at the two ends of flexible pipe body be 0.3～0.5mm, described guide wire adopts the transition of Diameter Gradual Change to be connected with the connecting portion of described flexible pipe body.
For realizing second purpose of the present utility model, also provide a kind of artificial tear duct to implant the probing of lacrimal passages guid needle of usefulness, comprise a needle tubing and insert the interior nook closing member of needle tubing, described needle tubing comprises straight length and the shank that is provided with inner via hole, described shank is provided with the handle wing that radially outward protrudes, described straight tube segment length is that 70～100mm, external diameter are that 0.8～1.0mm, internal diameter are 0.5～0.7mm, the straight length of described needle tubing and shank axially are provided with omnidistance crack shape opening along it, and A/F is 0.3～0.5mm; Described nook closing member comprises needle body and afterbody, and needle body one side is provided with flange along its axial direction, and described nook closing member can insert in the described needle tubing, and its described flange just in time embeds in the axially open on the needle tubing.
This artificial tear duct of the present utility model, adopt the body of elasticity guide wire and flexible band through hole, and guide wire adopts the transition of Diameter Gradual Change to be connected with body, utilize the elasticity of thinner guide wire can easily it be penetrated in the probe to insert patient's superior canaliculus and lower lacrimal canaliculi and tear house steward, and will draw in lacrimal ductule and tear house steward with the body of conduction hole, lacrimal ductule and tear house steward there are expansion and supporting role, the effect of drain tear is promptly arranged after inserting, do not influence patient's outward appearance, can obviously reduce the painful and inconvenient of patient, easy to use, can reduce operating difficulty and improve operation efficient.Indication: 1. superior canaliculus blocks.2. lower lacrimal canaliculi blocks.3. going up lower lacrimal canaliculi blocks simultaneously.4. the total pipe choking of tear.5. obstruction of lacrimal canaliculus and bone nose tear are narrow up and down.6. laceration of lacrimal canaliculus anastomosis operation.
Artificial tear duct of the present utility model is implanted the probing of lacrimal passages guid needle of usefulness, needle tubing and nook closing member is combined into the lacrimal passage that solid probe can make things convenient for, easily visit logical patient's obstruction, and utilizes needle tubing to import the guide wire of artificial tear duct easily after extracting nook closing member.After moving guide wire to from nasal cavity, slowly withdraw from needle tubing, guide wire detaches needle tubing gradually by the slotted opening of needle tubing, continues toward nasal side drawing seal wire, implantable artificial tear stains apace.Can help all to insert artificial tear duct, reduce operating difficulty from upper and lower puncta.
Description of drawings
Fig. 1 is the structural representation of two lacrimal ductule implanted artificial tear ducts.
Fig. 2 is the conduction hole layout type sketch map of body.
Fig. 3 implants the needle tubing sketch map of the probing of lacrimal passages guid needle of usefulness for artificial tear duct.
Fig. 4 is the axial cut-away view of needle tubing shown in Figure 3.
Fig. 5 is the vertical view of needle tubing shown in Figure 3.
Fig. 6 is the enlarged drawing of needle tubing A-A section shown in Figure 3.
Fig. 7 is the nook closing member sketch map of probing of lacrimal passages guid needle.
Fig. 8 is the vertical view of nook closing member shown in Figure 7.
Fig. 9 is the B-B profile of nook closing member shown in Figure 7.
Figure 10 inserts nook closing member shown in Figure 7 the installation diagram of needle tubing shown in Figure 3.
The vertical view of Figure 11 Figure 10.
Figure 12 is the C-C profile of Figure 10.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, to help understanding content of the present utility model.
1 pair of lacrimal ductule implanted of embodiment artificial tear duct
As shown in Figure 1, be two lacrimal ductule implanted artificial tear ducts, one section flexible medical silica gel body 3 that external diameter is 0.8～1.2mm in the middle of comprising, being arranged with a plurality of diameters on the tube wall of flexible pipe body 3 is the through hole 4 formation tear drainage holes of 0.25～0.5mm, respectively being connected with a diameter at the two ends of flexible pipe body is the certain elastic medical silica-gel guide wire 1 of having of 0.3～0.5mm, guide wire 1 adopts the transition of Diameter Gradual Change to be connected with the connecting portion 2 of body 3, helps entering swimmingly under the traction of guide wire in lacrimal ductule or the tear house steward when artificial tear duct is implanted.The internal diameter of artificial tear duct body 3 can be 0.4～0.6mm.Length 180～the 250mm of body 3 generally can be 200mm.Internal diameter is 0.4～0.6mm; Single guide wire 1 length is 150～200mm, generally can be 150mm.In order to obtain reasonable tear drainage effect, be about to tear drainage and advance in the artificial tear duct to be discharged to nasal cavity, the size of conduction hole and spacing and layout type are important.As shown in Figure 2, the through hole of doing to use in the tear drainage hole 4 is two rows, is arranged on both sides relative on the tube wall of body 3, and the through hole 4 of both sides is staggered, and the same side through hole is 2.5～5mm along the body axial spacing.
The connecting portion 2 of guide wire 1 and Diameter Gradual Change adopts has certain elastic silica gel or resin material, to penetrate in the probe easily and with the lacrimal passage bending, its connecting portion root and flexible pipe body 3 both ends utilize expanded joint, welding or with the bonding connection of seccotine stick.
Embodiment 2 probing of lacrimal passages guid needles
What present embodiment related to is to be used for the special-purpose probing of lacrimal passages guid needle that artificial tear duct imports usefulness, comprises a rustless steel needle tubing and inserts the interior rifle bolt formula rustless steel nook closing member of needle tubing.
To shown in Figure 6, needle tubing comprises the shank 11 that the straight length 10 that is provided with inner via hole 16 and straight length 10 tail ends expand as Fig. 3, and shank 11 is provided with the handle wing that radially outward protrudes, and the handle wing can be for the flange-like convex edge or as Fig. 3 and nose bar 12 shown in Figure 5.Straight length 10 external diameters are that 0.8～1.0mm, internal diameter are 0.5～0.7mm, length is 70～100mm, general desirable length is 80mm, the straight length 10 of needle tubing and shank 11 axially are provided with omnidistance crack shape opening 13 along it, opening 13 width should guarantee the guide wire by the artificial tear duct of correspondence, so value is 0.3～0.5mm.
The structure of nook closing member such as Fig. 7 are to shown in Figure 9, nook closing member comprises needle body 20 and afterbody, needle body 20 1 sides are provided with flange 23 along its axial direction, and the external diameter of needle body 20 guarantees that described nook closing member can insert in the corresponding needle tubing 10, and its flange 23 just in time embeds in the axial slotted opening 13 on the needle tubing 10.As Figure 10 and shown in Figure 12, nook closing member 20 is inserted needle tubing 10 backs form a solid probe, insert in the lacrimal passage that blocks probing of lacrimal passages with convenient, extract nook closing member then out, the guide wire of the artificial tear duct among the embodiment 1 is penetrated in the endoporus of needle tubing 10, to connect lacrimal passage, outwards extract needle tubing then and guide wire is withdrawed from needle tubing 10 through the slotted opening 13 of needle tubing one side, utilize guide wire trombone slide body that body is inducted in the lacrimal passage, insert superior canaliculus and lower lacrimal canaliculi, the tear house steward, utilize 3 pairs of lacrimal ductules of body and tear house steward to play expansion and supporting role, the effect of drain tear is promptly arranged after inserting, do not influence patient's outward appearance, can obviously reduce the painful and inconvenient of patient.
More satisfactory is, as Figure 12 and in conjunction with Fig. 3, Fig. 6 and Fig. 7 and shown in Figure 9, the width of the opening 13 on the width of the flange 23 on the nook closing member 20 and the needle tubing 10 is consistent, flange 23 tops are consistent with the external diameter of needle tubing 10 straight lengths to the diameter in nook closing member axle center, flange 13 outer surfaces were consistent with the needle tubing outer surface of tube wall when nook closing member 20 inserted described needle tubing 10 like this, formation be as shown in figure 12 orbicular slick real core needle body.Further, both tops were concordant when nook closing member 20 inserted needle tubings 10, or nook closing member protrudes in described needle tubing and be no more than 0.5mm and form round end, so as shown in figure 10, the tip of special needle is that slick filled circles is blunt nosed when being assembled together, and helps penetrating in the lacrimal passage swimmingly.
More satisfactory is, as shown in Figure 7, the nook closing member afterbody is a cone 25, as shown in Figure 4, needle tubing shank endoporus and the taper hole 15 that matches for the needle body afterbody, utilize this pointed cone structure can make nook closing member successfully insert in the needle tubing and guarantee to insert the back that puts in place to cooperate and firmly be difficult for swing, and the nook closing member tail area increases and be convenient to increase lifting surface area when inserting, produce enough thrust.
As shown in Figure 7, flange upper end at the nook closing member afterbody also is provided with radially nose bar 22, and nose bar 22 outwardly directed length will be when nook closing member inserts needle tubing, nose bar 22 stretches out in needle tubing shank surface certain-length, play the effect of similar rifle bolt, can rely on this nose bar 22 that protrudes from the needle tubing shank easily needle tubing is extracted or inserted to nook closing member 20 in needle tubing 10.
The nose bar 12 of needle tubing shank is as Fig. 3 and Figure 5 shows that adopting two is symmetrical arranged.As shown in figure 11, when nook closing member and needle tubing were assembled together, nose bar on the nook closing member 22 was triangularly arranged with nose bar 12 on the needle tubing, operated so that pinch with hands.
Using method: nook closing member is inserted the needle tubing logical special needle of the blunt solid spy of circle that tapers off to a point, thrust in the lacrimal passage of obstruction, extracting nook closing member utilizes needle tubing to make formation passage in the lacrimal passage, under its guiding, artificial tear duct is inserted lacrimal passage from upper and lower puncta, go out nasal cavity at nasolacrimal duct, fix with the silk thread ligation in the nasal cavity side.
Claims (11)
1, a kind of pair of lacrimal ductule implanted artificial tear duct, it is characterized in that: comprise that one section external diameter is the flexible pipe body of 0.8～1.2mm, being arranged with a plurality of diameters on the tube wall of flexible pipe body is the through hole formation tear drainage hole of 0.25～0.5mm, the elasticity guide wire that respectively to be connected with a diameter at the two ends of flexible pipe body be 0.3～0.5mm, described guide wire adopts the transition of Diameter Gradual Change to be connected with the connecting portion of described flexible pipe body.
2, as claimed in claim 1 pair of lacrimal ductule implanted artificial tear duct, it is characterized in that: described through hole is two rows, be arranged on both sides relative on the described tube wall, and the through hole of both sides is staggered, described is 2.5～5mm with side through hole along the axial spacing of body.
3, as claimed in claim 2 pair of lacrimal ductule implanted artificial tear duct, it is characterized in that: described body length is 180～250mm, internal diameter is 0.4～0.6mm; Described guide wire length is 150～200mm.
3, as claimed in claim 1 or 2 pair of lacrimal ductule implanted artificial tear duct is characterized in that: described guide wire and connecting portion one, the bonding or expanded joint of connecting portion is on described body.
4, a kind of artificial tear duct is implanted the probing of lacrimal passages guid needle of usefulness, it is characterized in that: comprise a needle tubing and insert the interior nook closing member of needle tubing, described needle tubing comprises straight length and the shank that is provided with inner via hole, described shank is provided with the handle wing that radially outward protrudes, described straight tube segment length is that 70～100mm, external diameter are that 0.8～1.0mm, internal diameter are 0.5～0.7mm, the straight length of described needle tubing and shank axially are provided with omnidistance crack shape opening along it, and A/F is 0.3～0.5mm; Described nook closing member comprises needle body and afterbody, and needle body one side is provided with flange along its axial direction, and described nook closing member can insert in the described needle tubing, and its described flange just in time embeds in the axial crack shape opening on the needle tubing.
5, probing of lacrimal passages guid needle as claimed in claim 4 is characterized in that: the width of the flange on the described nook closing member is consistent with the A/F on the described needle tubing, and described flange top is consistent with the external diameter of described needle tubing straight length to the diameter in nook closing member axle center.
6, probing of lacrimal passages guid needle as claimed in claim 5 is characterized in that: both tops were concordant when described nook closing member inserted needle tubing, or nook closing member protrudes in described needle tubing and is no more than 0.5mm and forms round end.
7, as described probing of lacrimal passages guid needle one of in the claim 4 to 6, it is characterized in that: described needle body afterbody is a cone, the taper hole of the endoporus of described needle tubing shank for matching with the nook closing member afterbody.
8, as described probing of lacrimal passages guid needle one of in the claim 4 to 6, it is characterized in that: the flange upper end at described nook closing member afterbody also is provided with radially nose bar, and the outwardly directed length of nose bar will be when nook closing member inserts needle tubing, and nose bar stretches out in needle tubing shank surface certain-length.
9, as described probing of lacrimal passages guid needle one of in the claim 4 to 6, it is characterized in that: the handle wing of described needle tubing shank is a nose bar.
10, as described probing of lacrimal passages guid needle one of in the claim 4 to 6, it is characterized in that: the described nose bar shape handle wing is two, is symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200058892U CN201164535Y (en) | 2008-02-28 | 2008-02-28 | Implantation type artificial dacryosolen with double-lacrimal duct and lacrimal probing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200058892U CN201164535Y (en) | 2008-02-28 | 2008-02-28 | Implantation type artificial dacryosolen with double-lacrimal duct and lacrimal probing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201164535Y true CN201164535Y (en) | 2008-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200058892U Expired - Fee Related CN201164535Y (en) | 2008-02-28 | 2008-02-28 | Implantation type artificial dacryosolen with double-lacrimal duct and lacrimal probing means |
Country Status (1)
| Country | Link |
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| CN (1) | CN201164535Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319146A (en) * | 2011-09-22 | 2012-01-18 | 杜兆江 | Lacrimal passage tube |
| CN102697582A (en) * | 2012-05-23 | 2012-10-03 | 中山市人民医院 | Lacrimal passage device |
| CN104287887A (en) * | 2014-10-24 | 2015-01-21 | 青岛大学附属医院 | Lacrimal passage treatment and probing device |
| CN105377188A (en) * | 2013-07-05 | 2016-03-02 | 汉阳大学校产学协力团 | Nasolacrimal duct tube including lachrymal passage |
| WO2017180487A1 (en) * | 2016-04-11 | 2017-10-19 | The Regents Of The University Of Michigan | Lacrimal stent with opening |
| CN107744426A (en) * | 2017-11-14 | 2018-03-02 | 山东省立医院 | A kind of simple tear channel pipe and application method |
| CN111325845A (en) * | 2020-02-18 | 2020-06-23 | 中国人民解放军总医院第三医学中心 | Three-dimensional reconstruction analysis method and device for lacrimal passage CT image |
-
2008
- 2008-02-28 CN CNU2008200058892U patent/CN201164535Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319146A (en) * | 2011-09-22 | 2012-01-18 | 杜兆江 | Lacrimal passage tube |
| CN102319146B (en) * | 2011-09-22 | 2013-10-16 | 杜兆江 | Lacrimal passage tube |
| CN102697582A (en) * | 2012-05-23 | 2012-10-03 | 中山市人民医院 | Lacrimal passage device |
| CN105377188A (en) * | 2013-07-05 | 2016-03-02 | 汉阳大学校产学协力团 | Nasolacrimal duct tube including lachrymal passage |
| CN104287887A (en) * | 2014-10-24 | 2015-01-21 | 青岛大学附属医院 | Lacrimal passage treatment and probing device |
| WO2017180487A1 (en) * | 2016-04-11 | 2017-10-19 | The Regents Of The University Of Michigan | Lacrimal stent with opening |
| JP2019511318A (en) * | 2016-04-11 | 2019-04-25 | ザ・リージェンツ・オブ・ザ・ユニバーシティ・オブ・ミシガンＴｈｅ Ｒｅｇｅｎｔｓ Ｏｆ Ｔｈｅ Ｕｎｉｖｅｒｓｉｔｙ Ｏｆ Ｍｉｃｈｉｇａｎ | Lacrimal stent having an opening |
| JP6992987B2 (en) | 2016-04-11 | 2022-01-13 | ザ・リージェンツ・オブ・ザ・ユニバーシティ・オブ・ミシガン | Lacrimal stent with an opening |
| JP2022019934A (en) * | 2016-04-11 | 2022-01-27 | ザ・リージェンツ・オブ・ザ・ユニバーシティ・オブ・ミシガン | Lacrimal stent with opening |
| CN107744426A (en) * | 2017-11-14 | 2018-03-02 | 山东省立医院 | A kind of simple tear channel pipe and application method |
| CN107744426B (en) * | 2017-11-14 | 2024-01-30 | 山东省立医院 | Simple lacrimal passage artificial tube and use method thereof |
| CN111325845A (en) * | 2020-02-18 | 2020-06-23 | 中国人民解放军总医院第三医学中心 | Three-dimensional reconstruction analysis method and device for lacrimal passage CT image |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20110228 |