CN208464424U - A kind of novel lacrimal dilatation probe - Google Patents
A kind of novel lacrimal dilatation probe Download PDFInfo
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- CN208464424U CN208464424U CN201721148752.8U CN201721148752U CN208464424U CN 208464424 U CN208464424 U CN 208464424U CN 201721148752 U CN201721148752 U CN 201721148752U CN 208464424 U CN208464424 U CN 208464424U
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- expansion
- core rod
- internal core
- tube
- outer tube
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Abstract
A kind of novel lacrimal dilatation probe, solution is of the existing technology to be simply possible to use in expansion nasolacrimal duct, consumes product somewhat expensive, there are inflammatory reaction and foreign material repulsion risk, the problems of clinical effectiveness difference.Including internal core rod, it is characterized by: internal core rod is made of the strip body of rod of front setting olive shape enlarged portion, blunt circle head is respectively set in the both ends of inner core club shaft, the outer tube expansion being socketed on the outside of internal core rod includes tube body, the front end of tube body is expansion end, strip opening is disposed on the tube wall of expansion end, if tube body expansion end is divided into dry plate to expand wall by strip opening；Tube body rear portion is provided with the side connecting tube being connected with silica gel hose；Internal core rod rear portion reaches the outside of outer tube expansion control terminal.It is designed rationally, compact-sized, can be carried out blunt separation expansion to lacrimal passage overall length any part, not generated the surface of a wound, not form cicatricial adhesion, can repeated multiple times treatment use, it is easy to operate without consuming product, effectively increase the effective percentage and cure rate of probing of lacrimal passage.
Description
Technical field
The utility model belongs to the field of medical instrument technology, and in particular to one kind meets lacrimal passage anatomical structure, can be to lacrimal passage
Carry out the minimally-invasive treatment of blunt separation expansion, easy to operate, the good novel lacrimal dilatation probe of therapeutic effect.
Background technique
Obstruction of lacrimal passage is a kind of common eye disease, and wherein obstruction of naso lacrimal duct is most commonly seen one in Lacrimal Passage Block
Kind, clinical manifestation is the symptoms such as excessive tear and pyorrhea, often brings body and mind painful to patient；Obstructive position can be used as potentially simultaneously
Infection focus easily causes the infection of ulcer of the cornea and operated eye.The traditional therapeutic modality of obstruction of naso lacrimal duct is dacryocystorhinostomy
Art, surgical procedure is complicated, damage is big, and facial area leaves scar.Lacrimal passage plastic surgery has gradually replaced traditional tear after occurring
Capsule nasal cavity anastomosis, it belongs to minimal invasive lacrimal surgery relative to traditional Dacryocystorhinostomy, and principle is dredging obstruction
Lacrimal passage restores the physiology channel of tear drainage again.Common lacrimal passage plastic surgery includes probing of lacrimal passage, laser lacrimal passage forming
Art, electronic cautery art, scope guide lower trepan lacrimal passage plastic surgery.
Probing of lacrimal passage is the lacrimal passage plastic surgery occurred earliest, has that easy to operate, surgical instrument is cheap, patient suffering
Small, the advantages that can repeatedly performing the operation repeatedly；But it since to be formed by access more narrow for traditional lacrimal probe, is easily closed, in clinic
In the therapeutic effect of adult obstruction of lacrimal passage is not very ideal.
With the development of science and technology laser, high frequency technique, endoscopic technique emerge in large numbers and develop, occur laser lacrimal passage at
Shape art, electronic cautery art, scope guide arts formula, these operation methods such as lower trepan lacrimal passage plastic surgery that can not only restore tear
Road access, and expand lacrimal passage bore using the methods of laser, high-frequency electrical, trepan, but above-mentioned operation is on lacrimal passage mucous membrane
Form the surface of a wound, increase operation wound, and formed the mucous membrane surface of a wound it is postoperative easily there is granulation, again adhesion etc., this is postoperative
One of the main reason for obstruction of lacrimal passage recurs.In addition, above-mentioned operation method is both needed to expensive Medical Devices, it can not be in basic hospital
Widely promote；And it is easily formed via causing the Accessory injury of surrounding tissue compared with traditional probing of lacrimal passage.
Because Laser surgery for lacrimal duct obstruction, electronic cautery art, scope guide the arts formulas such as lower trepan lacrimal passage plastic surgery
Disadvantages mentioned above, nearest ophthalmology educational circles again rotate back into sight on probing of lacrimal passage, develop lacrimal stent, lacrimal passage on this basis
The technologies such as air bag expansion, it is intended on the basis of probing of lacrimal passages, narrow lacrimal passage is expanded by bracket or air bag etc..But lacrimal stent
The current clinic of art is simply possible to use in the nasolacrimal duct of expansion lacrimal passage end, treatment obstruction of naso lacrimal duct disease；And bracket indwelling is in tear
In road, there are the risks of inflammatory reaction and foreign material repulsion, and in addition bracket is the consumption product disposably applied, somewhat expensive.However, tear
Road air bag expansion technology is not then ten sub-arguments in the effect of clinical application because of factors such as air bag material, lacrimal passage complex anatomies
Think.
The anatomical structure of lacrimal passage is that lacrimal passage entrance lacrimal point is the narrowest, lacrimal, tear general pipeline, lachrymal sac and nasolacrimal duct thereafter
Diameter gradually thickening.So how to expand the lacrimal passage for gradually expanding thickening thereafter after narrow lacrimal point tripping in probe, it is always
Seriously affect the maximum difficult point of probing of lacrimal passage surgical effect.Therefore it is necessary to the tear duct dilating devices to the prior art to be changed
Into.
Utility model content
The utility model provides one kind and meets lacrimal passage anatomical structure aiming at the above problem, can carry out passivity to lacrimal passage
The minimally-invasive treatment of split extension, easy to operate, the good novel lacrimal dilatation probe of therapeutic effect.
The technical scheme adopted by the utility model is the novel lacrimal dilatation probe includes internal core rod, it is characterised in that:
The internal core rod includes the body of rod of strip, and the front of the body of rod is provided with olive shape enlarged portion, and the front end of the body of rod is provided with front
Blunt circle head, the rear end of the body of rod are provided with rear portion blunt circle head；Outer tube expansion is socketed on the outside of inner core club shaft, outer tube expansion includes by bullet
Property material made of hollow tube, the front end of tube body is expansion end, is provided at least two strips on the tube wall of expansion end and opens
Mouthful, strip is open along the axial direction arrangement of tube body, and tube body expansion end is divided at least two panels to expand wall by strip opening；Tube body
Rear sidewall on be provided with side connecting tube, side connecting tube is connected with silica gel hose, and the rear end of tube body is control terminal；Internal core rod
Rear portion reaches on the outside of the control terminal of outer tube expansion tube body, and it is close that annular is provided between internal core rod rear portion and outer tube expansion control terminal
Close cap.
The end for the strip opening being arranged on the outer tube expansion expansion end tube wall, is provided with circular through hole.So that outer swollen
The expansion wall of pipe is easier to open, and can use circular through hole as perfusion side opening, facilitates the operation of perfusion liquid.
Scale is provided on the outside of the internal core rod and outer tube expansion.With by the mark of scale, to show insertion depth
And extraction distance, determine obstructive position and range.
The material of the outer tube expansion tube body is steel or titanium.To ensure outer tube expansion expansion wall in internal core rod olive shape enlarged portion
Under effect, expansion and closure that can be gentle.
The outer surface of the internal core rod is provided with non-sticking lining；The inner and outer surfaces of the outer tube expansion are provided with not snearing
Layer.To reduce coefficient of friction when tear duct dilating operation, the feeling of pain of patient is reduced.
The inner core rod outer surface, and the non-sticking lining of outer tube expansion inner and outer surfaces setting is polytetrafluorethylecoatings coatings.
The material for the annular closed cap being arranged between the internal core rod rear portion and outer tube expansion control terminal is medical grade rubber.
The utility model has the beneficial effects that since the utility model is used by the elongate posts of front setting olive shape enlarged portion
Front blunt circle head is arranged in the internal core rod that body is constituted, the front end of inner core club shaft, and rear portion blunt circle head, outer tube expansion is arranged in the rear end of the body of rod
It is socketed in the outside of inner core club shaft；Outer tube expansion includes the hollow tube made of elastic material, and the front end of tube body is expansion end,
The strip opening axially arranged along tube body is set on the tube wall of expansion end, if tube body expansion end is divided by strip opening
Dry plate expands wall；Side connecting tube is set in the rear sidewall of tube body, and side connecting tube is connected with silica gel hose；Internal core rod rear portion is stretched out
To the structure type outside the control terminal of outer tube expansion tube body, so its design is rationally, it is compact-sized, probe structure is optimized, it is ingenious
Ground is additionally arranged tear duct dilating function, can carry out blunt separation expansion to lacrimal passage overall length any part, improve the narrow shape of lacrimal passage
State.The novel lacrimal dilatation probe does not generate the surface of a wound, does not form cicatricial adhesion, high degree mentions using former lacrimal passage anatomical structure
The high effective percentage and cure rate of probing of lacrimal passage；And can repeated multiple times treatment use, it is easy to operate without consuming product, control
Therapeutic effect is significant.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model.
Fig. 2 is a kind of structural schematic diagram of the internal core rod in Fig. 1.
Fig. 3 is a kind of structural schematic diagram of the outer tube expansion in Fig. 1.
Fig. 4 is cross-sectional view of the Fig. 3 along line A-A.
Fig. 5 is cross-sectional view of the Fig. 3 along line B-B.
Fig. 6 is embodiment schematic diagram when the utility model carries out tear duct dilating.
Fig. 7 is embodiment schematic diagram when the outer tube expansion of the utility model is used as Syringe needle Irrigator.
Number explanation in figure: 1 internal core rod, 2 outer tube expansions, 3 silica gel hoses, 4 annular closed caps, 5 bodies of rod, the expansion of 6 olive shapes
Portion, 7 front blunt circle heads, 8 rear portion blunt circle heads, 9 scales, 10 tube bodies, 11 side connecting tubes, 12 control terminals, 13 circular through holes, 14 expansions
Wall, 15 strips opening, 16 expansion ends, 17 seal plugs.
Specific embodiment
The specific structure of the utility model is described in detail according to Fig. 1~7.The novel lacrimal dilatation probe includes internal core rod 1,
And the outer tube expansion 2 being socketed on the outside of internal core rod 1, wherein internal core rod 1 is made of the strip body of rod 5,5 front of the body of rod of strip
It is provided with the olive shape enlarged portion 6 that wall 14 is expanded for expanding outer tube expansion 2；The front end of 1 body of rod 5 of internal core rod is provided with front blunt circle
First 7, the rear end of 1 body of rod 5 of internal core rod is provided with rear portion blunt circle head 8.The outer tube expansion 2 being socketed on the outside of 1 body of rod 5 of internal core rod includes by bullet
Property material made of hollow tube 10, the front end of hollow tube 10 is the expansion end 16 for expanding lacrimal passage, the pipe of expansion end 16
Two strip openings 15 are provided on wall, two strip openings 15 are arranged in along the direction parallel with 10 axis of tube body
On tube wall.In order to ensure outer tube expansion 2 expansion wall 14 is under the action of 1 olive shape enlarged portion 6 of internal core rod, expansion that can be gentle and
Closure, steel can be used for outer 2 tube body 10 of tube expansion or titanium elastomeric material is made.For making the expansion wall 14 of outer tube expansion 2 be easier to open
Purpose, the end for the strip opening 15 being arranged on every outer 2 expansion end of tube expansion, 16 tube wall is both provided with circular through hole 13；
Also, the circular through hole 13 can be used as perfusion side opening and use, and facilitate the operation of pouring liquid.Two strips opening 15 is by tube body
10 expansion end 16 is divided into two panels that can squeeze the expansion wall 14 expanded outwardly by 1 olive shape enlarged portion 6 of internal core rod.
Side connecting tube 11 is provided in the rear sidewall of outer 2 tube body 10 of tube expansion, side connecting tube 11 passes through silica gel hose 3 and note
Emitter or infusion apparatus are connected；To realize no replacement is required the syringe needle in art, it can be lubricated, be perfused, drug irrigation injection etc.
Function.The rear portion of internal core rod 1 reaches 12 outside of control terminal of outer 2 tube body of tube expansion, 10 rear end, by 1 rear portion of internal core rod
Pull, to realize the expansion of outer tube expansion 2；Also, in order to enhance sealing effect, 1 rear portion of internal core rod and outer 2 control terminal 12 of tube expansion it
Between be provided with annular closed cap 4 made of medical grade rubber.In order to reduce coefficient of friction when tear duct dilating operation, reduce patient's
The inner and outer surfaces of feeling of pain, the outer surface of internal core rod 1, and outer tube expansion 2 are provided with polytetrafluoroethylene (PTFE) (Teflon) not snearing
Layer.The mark for passing through scale 9 for the ease of doctor differentiates insertion depth and extraction distance, so that it is determined that blockage outside lacrimal passage
The outside of position and range, internal core rod 1 and outer tube expansion 2 is provided with mark scale 9.
The novel lacrimal dilatation probe in use, firstly, can using only 1 rear end of internal core rod rear portion blunt circle head 8 forward
It is used as lacrimal probe, with lacrimal passage probing, and preliminary blunt separation blocks adhesion part；1 high scale 9 of internal core rod is observed, from
And determine obstructive position and range.When needing tentatively to expand lacrimal passage, visited again forward using the front end of internal core rod 1
Logical lacrimal passage, and lacrimal passage is tentatively expanded using the olive shape enlarged portion 6 of 1 front end of internal core rod.Then probe is assembled: after internal core rod 1
End is inserted into outer 2 tube body 10 of tube expansion by the expansion end 16 of outer tube expansion 2, and the rear portion of internal core rod 1 reaches outer 2 control terminal of tube expansion
12 outside, and annular closed cap 4 is set between outer 2 control terminal 12 of tube expansion and 1 rear portion of internal core rod.It will by silica gel hose 3
The side connecting tube 11 of outer tube expansion 2 is connected with syringe or infusion apparatus.
Assembled probe front is inserted into lacrimal passage, determines that insertion is deep according to the scale 9 outside probe on tube expansion 2
Degree；Then, outer tube expansion 2 is gently expanded to pass through the olive shape enlarged portion 6 of internal core rod 1 in the rear end of slow pull internal core rod 1
Expansion wall 14, thus realize obstruction narrow lacrimal passage expansion.It is available to rotate repeatedly in slow pull internal core rod 1
The mode of the outer tube expansion 2 of probe, significantly reduces the pull resistance of internal core rod 1.Also, during tear duct dilating, it can pass through
The side connecting tube 11 or circular through hole 13 of outer tube expansion 2, the drugs such as injection antibiotic gels, while playing anti-inflammatory effect, profit
Sliding lacrimal passage and internal core rod 1, to reduce pull resistance., it is understood that expanding the needs of lacrimal passage different parts according to probing, outside
Tube expansion 2 may be designed to different diameters, different length from the internal core rod 1 to match.
In the state of being not inserted into internal core rod 1, outer 2 control terminal 12 of tube expansion can be sealed using non-porous silica gel sealing stifled 17
It closes, so that outer tube expansion 2 be used separately as Syringe needle Irrigator.
Claims (7)
1. a kind of novel lacrimal dilatation probe, including internal core rod (1), it is characterised in that: the internal core rod (1) includes strip
The body of rod (5), the front of the body of rod (5) are provided with olive shape enlarged portion (6), and the front end of the body of rod (5) is provided with front blunt circle head (7),
The rear end of the body of rod (5) is provided with rear portion blunt circle head (8)；Outer tube expansion (2), outer tube expansion are socketed on the outside of internal core rod (1) body of rod (5)
It (2) include the hollow tube made of elastic material (10), the front end of tube body (10) is expansion end (16), the pipe of expansion end (16)
At least two strip openings (15) are provided on wall, strip opening (15) arranges that strip is opened along the axial direction of tube body (10)
Tube body (10) expansion end (16) is divided at least two panels expansion wall (14) by mouth (15)；It is provided in the rear sidewall of tube body (10)
Side connecting tube (11), side connecting tube (11) are connected with silica gel hose (3), and the rear end of tube body (10) is control terminal (12)；Internal core rod
(1) rear portion reaches on the outside of the control terminal (12) of outer tube expansion (2) tube body (10), and internal core rod (1) rear portion and outer tube expansion (2)
Annular closed cap (4) are provided between control terminal (12).
2. novel lacrimal dilatation probe according to claim 1, it is characterised in that: outer tube expansion (2) expansion end (16)
The end for the strip opening (15) being arranged on tube wall, is provided with circular through hole (13).
3. novel lacrimal dilatation probe according to claim 1, it is characterised in that: the internal core rod (1) and outer tube expansion (2)
Outside be provided with scale (9).
4. novel lacrimal dilatation probe according to claim 1, it is characterised in that: outer tube expansion (2) tube body (10)
Material is steel or titanium.
5. novel lacrimal dilatation probe according to claim 1, it is characterised in that: the outer surface of the internal core rod (1) is set
It is equipped with non-sticking lining；The inner and outer surfaces of the outer tube expansion (2) are provided with non-sticking lining.
6. novel lacrimal dilatation probe according to claim 5, it is characterised in that: internal core rod (1) outer surface, and
The non-sticking lining of outer tube expansion (2) inner and outer surfaces setting is polytetrafluorethylecoatings coatings.
7. novel lacrimal dilatation probe according to claim 1, it is characterised in that: internal core rod (1) rear portion with it is outer swollen
The material for the annular closed cap (4) being arranged between pipe (2) control terminal (12) is medical grade rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721148752.8U CN208464424U (en) | 2017-09-08 | 2017-09-08 | A kind of novel lacrimal dilatation probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721148752.8U CN208464424U (en) | 2017-09-08 | 2017-09-08 | A kind of novel lacrimal dilatation probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208464424U true CN208464424U (en) | 2019-02-05 |
Family
ID=65203886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721148752.8U Withdrawn - After Issue CN208464424U (en) | 2017-09-08 | 2017-09-08 | A kind of novel lacrimal dilatation probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208464424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107468417A (en) * | 2017-09-08 | 2017-12-15 | 中国医科大学附属第医院 | A kind of novel lacrimal dilatation probe |
-
2017
- 2017-09-08 CN CN201721148752.8U patent/CN208464424U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107468417A (en) * | 2017-09-08 | 2017-12-15 | 中国医科大学附属第医院 | A kind of novel lacrimal dilatation probe |
| CN107468417B (en) * | 2017-09-08 | 2023-07-18 | 中国医科大学附属第一医院 | Lacrimal passage dilating probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190205 Effective date of abandoning: 20230718 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190205 Effective date of abandoning: 20230718 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |