CN209422228U - A kind of sclera tunnel knife - Google Patents
A kind of sclera tunnel knife Download PDFInfo
- Publication number
- CN209422228U CN209422228U CN201821602283.7U CN201821602283U CN209422228U CN 209422228 U CN209422228 U CN 209422228U CN 201821602283 U CN201821602283 U CN 201821602283U CN 209422228 U CN209422228 U CN 209422228U
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- knife
- cutter hub
- tunnel
- sclera
- arc
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Abstract
The utility model provides a kind of sclera tunnel knife, including knife handle, cutter hub and point of a knife, and one end of the cutter hub is fixed or connects knife handle by internal and external threads mode, and other end integrated molding is connected with point of a knife.Knife handle uses plastic products, and knife handle front end and cutter hub junction are provided with round-like structure, and the small end of round-like structure connects cutter hub；Cutter hub includes the linkage section and the integrally formed arc tunnel construction sections of linkage section perpendicular to round-like structure, cutter hub connects segment length about 10-15mm, angle between linkage section and arc tunnel construction sections is 110 ° -130 °, and arc tunnel construction sections are set as to the curved arcuate structure in linkage section extended line direction；Graduation mark is arranged in arc tunnel section surface.The sclera tunnel knife is passed through cutting lameller sclera and corneal limbal tissue when use and enters anterior chamber formation arc tunnel by the sclera tunnel knife of the utility model, then arcuately tunnel is directly protruding into anterior chamber by the drainage tube of Glaucoma Drainage valve, easy to use.
Description
Technical field
The utility model belongs to medical cutting-tool engineering field, and in particular to a kind of sclera tunnel knife.
Background technique
Glaucoma Drainage object implantation be by the drainage device of engineer a kind of, the drainage device generally by drainage tube and
Aqueous humor is directly drained into plant by disperser by drainage disc composition, drainage tube (outer diameter 0.635mm) implantation anterior chamber or back room
Enter around the drainage disc apart from corneal limbus about 10mm under fascial bursa, reaching drain aqueous humor reduces intraocular pressure effect.According to drainage tube
Whether drainage device is divided into two major classes by current limiting function for end: glaucoma drainage device and valvular glaucoma without valve
Drainage device.Currently, modus operandi is the conjunctival flap done between two muscle of selected quadrant using arched roof as substrate；By drawing
Drainage disc suture is fixed on the shallow-layer sclera apart from corneal limbus about 10mm by the fixation hole of flow table；In the same area scleral surface
Production corneal limbus is the scleral flap of substrate for covering drainage tube, then with No. 7 injection needles at the angle Gong Yuan of below scleral valve
It punctures and enters anterior chamber, a little adhered elastomer is injected to anterior chamber after exiting, before trimming drainage length of tube protrudes into drainage tube along puncture orifice
Room about 2mm.The shallow-layer scleral flap of suture covering drainage tube is to prevent drainage tube exposure.Finally, suture conjunctiva.In existing technology,
Due to needing to make the shallow-layer scleral flap (general size is 8 × 3mm or so) of covering drainage tube, it is easy to cause two to eyes of patients
Secondary damage, and the complication (such as valve perforation, broken and cut through eyeball etc.) for being possible to production scleral flap occur；It can also perform the operation
In do not make shallow-layer scleral flap, and directly cover drainage tube using materials such as allogeneic sclera, pericardium, endocranium, but exist and cover
Cover material has the limitation that antigenicity, price are high, acquisition is difficult.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of sclera tunnel knifes, directly need to make shallow-layer in original and consolidate
The position of film valve makes fixation through scleral tunnels incision, and tunnel is about 8mm, width only about 0.7-0.8mm, to solve to be mentioned in background technique
Out the problem of.
In order to solve the above technical problems, the embodiments of the present invention provide a kind of novel sclera tunnel knife, feature exists
In including knife handle, cutter hub and point of a knife, one end of the cutter hub connect knife handle, and other end integrated molding is connected with point of a knife, the knife
Handle front end and cutter hub junction are provided with round-like structure, and the small end of the round-like structure connects cutter hub；The cutter hub includes
Perpendicular to the linkage section and the integrally formed arc tunnel construction sections of linkage section of round-like structure, the linkage section and arc tunnel construction sections
Between angle be 110 ° -130 °, the arc tunnel construction sections are set as to the curved arcuate structure in linkage section extended line direction；Institute
The arc length for stating arc tunnel construction sections is 11-13mm, and the cutter hub connection segment length is 10-15mm, half of covering of the fan where the arc length
Diameter is 11-13mm；The arc tunnel construction sections have graduation mark from point of a knife to linkage section direction signs.
Further, the vertical cross-section of the cutter hub is set as flat structure, width 0.7mm-0.8mm, thickness
For 0.4-0.5mm.
Further, the point of a knife is set as tetragonous wimble structure, and 1-2 blade is provided on the cutter hub and point of a knife.
Further, the point of a knife and cutter hub junction are provided with the connected unit of a truncated rectangular pyramids structure, the connected unit
Big end connects point of a knife, and small end connects cutter hub, and the big end width of the connected unit is 0.8-1mm, the width of the connected unit small end
Degree is 0.6-0.7mm.
Further, an auxiliary holding device, the auxiliary holding device are socketed on the knife handle.
Wherein, the axial direction of the auxiliary holding device is provided with an inner hole；The internal diameter of the inner hole and knife handle position
It is adapted；There are three curved surfaces to position depression for the lateral wall setting of the auxiliary holding device, and three curved surfaces position depression
Shape, position and size and the finger-type of operator's thumb, index finger and middle finger match.
Wherein, the auxiliary holding device is made of silica gel.
Further, the novel sclera tunnel knife, the characteristics of operation respectively for the left and right sides, the arc of the cutter hub
Tunnel construction sections in perpendicular or between perpendicular there are 70-80 ° of angle is preferred, setting on the outside of the cutter hub and point of a knife
There is a protective jacket.
Wherein, the protective jacket is divided into left side body and right side body, passes through between the left side body and right side body
Card slot carries out plug-in with fixture block and connects；It is provided on the left side body or right side body compatible with cutter hub and point of a knife
Groove.
The above-mentioned technical proposal of the utility model has the beneficial effect that: the sclera tunnel knife of the utility model, including knife
Handle, cutter hub and point of a knife；Cutter hub includes the linkage section and the integrally formed arc tunnel construction sections of linkage section perpendicular to round-like structure,
Angle between linkage section and arc tunnel construction sections is 120 °；The arc length of the arcuate structure of arc tunnel construction sections, arc tunnel construction sections is
12mm, the radius of covering of the fan where the arc length are 12mm；The hemisphere of human normal eyeball is 12mm or so, and arcuate structure and eye
The spherical structure of ball is adapted to, and by sclera tunnel knife along eyeball radian, is made shallow-layer scleral tunnel and is reached corneal limbus and be pierced into anterior chamber,
Then sclera tunnel knife is exited to form arc tunnel, by the drainage tube of Glaucoma Drainage valve, arcuately tunnel protrudes into anterior chamber, keeps away
Exempt to make shallow-layer scleral flap and secondary injury is caused to the eyeball of patient, avoids using allosome covering material, it is easy to use, it is easy to slap
It holds, simplifies operative process, be conducive to postoperative recovery.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiments of the present invention one；
Fig. 2 is the needle head structure schematic diagram of the utility model；
Fig. 3 is the structure of the cutter body schematic diagram of the embodiments of the present invention 2.
Description of symbols: 1, knife handle；2, linkage section；3, arc tunnel construction sections；4, point of a knife；5, fan-shaped securing plate；6, scale
Line；7, blade；8, connected unit；9, auxiliary holding device；10, curved surface positions depression.
Specific embodiment
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
It is in the description of the present invention, it should be noted that term " center ", "upper" "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside", "front", "rear" is orientation based on the figure or position
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.This
Outside, term " first ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be used as broadly understood, for example, it may be being fixedly connected, may be a detachable connection, or one
Ground connection；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, it can be the connection inside two elements.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
Embodiment one
As shown in Figure 1, a kind of novel sclera tunnel knife, including knife handle 1, cutter hub and point of a knife 4, one end of the cutter hub are fixed
Or knife handle 1 is connected by internal and external threads mode, other end integrated molding is connected with point of a knife 4, and the knife handle 1 uses plastic products,
The knife handle 1 can be detachably connected by internal and external threads connection type with cutter hub, can also be by hot-forming solid with cutter hub
Fixed connection；The cutter hub and point of a knife 4 are stainless steel products；1 front end of knife handle and cutter hub junction are provided with round-like structure,
The small end of the round-like structure connects cutter hub；The cutter hub includes the linkage section 2 and linkage section 2 perpendicular to round-like structure
Integrally formed arc tunnel construction sections 3, the arc tunnel construction sections 3 are integrally formed with point of a knife 4；The linkage section 2 and arc tunnel construction sections 3
Between angle be 110 ° -130 °, the arc tunnel construction sections 3 are set as to the 2 curved arcuate structure in extended line direction of linkage section；
The arc length of the arc tunnel construction sections 3 is 11-13mm, and the radius of covering of the fan where the arc length of the arc tunnel construction sections 3 is 11-13mm；
The cutter hub connection segment length is 10-15mm, it is preferred that the linkage section 2 is integrally formed with 3 junction of arc tunnel construction sections to be arranged
There is a fan-shaped securing plate 5, bonding strength between the two can be improved；The arc tunnel construction sections 3 are from point of a knife 4 to linkage section direction sign
Knowledge has graduation mark 6, and in the actual production process, arc tunnel construction sections scale only needs to mark apart from point of a knife 6mm, 8mm, 10mm.It carves
Degree line 6 can be identified for that length, the length for reminding operator's institute's cutter hub to enter.The sclera tunnel knife of the utility model, including knife handle
1, cutter hub and point of a knife 4；Cutter hub includes the linkage section 2 and the integrally formed arc tunnel construction sections of linkage section 2 perpendicular to round-like structure
3, the angle between linkage section 2 and arc tunnel construction sections 3 is 120 °；The arcuate structure of arc tunnel construction sections 3, the arc of arc tunnel construction sections 3
A length of 12mm, the radius of covering of the fan where the arc length are 12mm；The hemisphere of human normal eyeball is 12mm or so, and arcuate structure
It is adapted to the spherical structure of eyeball, by sclera tunnel knife along eyeball radian, makes shallow-layer scleral tunnel and reach corneal limbus and be pierced into
Then anterior chamber exits sclera tunnel knife to form arc tunnel, by the drainage tube of Glaucoma Drainage valve before arcuately tunnel protrudes into
Room avoids production shallow-layer scleral flap from causing secondary injury to the eyeball of patient, avoids using allosome covering material, easy to use,
It is easy to grasp, simplifies operative process, be conducive to postoperative recovery.
Preferably, the vertical cross-section of the cutter hub is set as flat structure, width 0.7mm-0.8mm, with a thickness of
0.4-0.5mm。
Further, the point of a knife is set as tetragonous wimble structure, is provided with 1-2 blade on the cutter hub and point of a knife 4.
Preferably, as shown in Fig. 2, the point of a knife 4 and cutter hub junction are provided with the connected unit 8 of a truncated rectangular pyramids structure, institute
The big end connection point of a knife of connected unit 8 is stated, small end connects cutter hub, and the outside diameter of the connected unit is 0.8-1mm, the connection
The diameter of platform small end is 0.6-0.7mm.The utility model between point of a knife 4 and cutter hub by adding the connected unit of truncated rectangular pyramids structure
It can effectively avoid in surgical procedure, the contact area of cutter hub and cornea or conjunctiva, operation is more convenient.
Further, an auxiliary holding device 9 is socketed on the knife handle 1, feasible, auxiliary holding device 9 uses silicon
Glue material matter is made, and can be fixed on knife handle 1 by socket mode, to same specification grip position.
Wherein, the axial direction of the auxiliary holding device 9 is provided with an inner hole；The internal diameter of the inner hole and knife handle position
It is adapted；There are three curved surfaces to position depression 10 for the lateral wall setting of the auxiliary holding device 9, and three curved surfaces position depression
10 shape, position and size and the finger-type of operator's thumb, index finger and middle finger match；Wherein, the auxiliary holds dress
9 are set to be made of silica gel.The utility model passes through the thumb of specification surgical staff, index finger by setting auxiliary holding device 9
With middle finger held position in the course of surgery, feasible, thumb, index finger and middle finger hold hand in a manner of holding a pen during surgery
Handle improves the accuracy that sclera tunnel knife uses, and accurate sclera tunnel knife enters position after eyeball, ensures success rate of operation.
Preferably, a protective jacket is provided on the outside of the cutter hub and point of a knife 4.Wherein, the protective jacket is divided into left side body
With right side body, plug-in is carried out with fixture block by card slot between the left side body and right side body and is connected；The left side set
Groove compatible with cutter hub and point of a knife is provided on body or right side body.
Wherein, the arc tunnel construction sections of the cutter hub are in perpendicular.When operator uses sclera tunnel knife, the right side is mostly used
Hand is held, when sclera tunnel knife enters on the right side of the eyeball, the arc tunnel construction sections 3 of cutter hub in perpendicular, using more convenient.
Embodiment two
Embodiment two relative to embodiment one the difference is that, as shown in figure 3, in actual operation, for left and right
The characteristics of two sides are performed the operation, there are 70-80 ° of angles between the arc tunnel construction sections 3 and perpendicular of the cutter hub.Operator uses Gong
When film tunnel blade, the right hand is mostly used to hold, when needing to enter on the left of eyeball, the arc tunnel construction sections 3 and perpendicular of cutter hub
Between there are 70-80 ° of angle, using more convenient.
The course of work of specific embodiment of the utility model: modus operandi is to do between two muscle of selected quadrant
Using arched roof as the conjunctival flap of substrate；Drainage disc suture is fixed on apart from the shallow of corneal limbus about 10mm by the fixation hole of drainage disc
On layer sclera；In front of drainage disc and the drainage tube junction at about 1.5-2mm, using sclera tunnel knife along eyeball radian forward,
Production shallow-layer scleral tunnel reaches corneal limbus and is pierced into anterior chamber, then exits sclera tunnel knife to form arc tunnel, to the tunnel
A small amount of viscoelastic agent lubrication tunnel is injected in road and anterior chamber is deepened to the appropriate viscoelastic agent of intracameral injection by tunnel, then by green light
The drainage tube of eye drain valve is trimmed to appropriate length (entering anterior chamber about 2mm), and arcuately tunnel protrudes into anterior chamber, and suture conjunctiva is completed
Operation.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, under the premise of not departing from principle described in the utility model, it can also make several improvements and retouch, these improvement
It also should be regarded as the protection scope of the utility model with retouching.
Claims (10)
1. a kind of sclera tunnel knife, which is characterized in that including knife handle, cutter hub and point of a knife, one end of the cutter hub connects knife handle, separately
One end, which is integrally formed, is connected with point of a knife, and the knife handle front end and cutter hub junction are provided with round-like structure, the round table-like knot
The small end of structure connects cutter hub；The cutter hub includes the linkage section and the integrally formed arc of linkage section perpendicular to round-like structure
Tunnel construction sections, the angle between the linkage section and arc tunnel construction sections are 110 ° -130 °, and the arc tunnel construction sections are set as to connection
The curved arcuate structure in elongated segment line direction；The arc length of the arc tunnel construction sections is 11-13mm, and the cutter hub connection segment length is
10-15mm, the radius of covering of the fan where the arc length are 11-13mm；The arc tunnel construction sections are from point of a knife to linkage section direction signs
There is graduation mark.
2. a kind of sclera tunnel knife according to claim 1, which is characterized in that the vertical cross-section of the cutter hub is set as flat
Flat structure, width 0.7mm-0.8mm, with a thickness of 0.4-0.5mm.
3. a kind of sclera tunnel knife according to claim 1, which is characterized in that the point of a knife is set as tetragonous wimble structure,
1-2 blade is provided on the cutter hub and point of a knife.
4. a kind of sclera tunnel knife according to claim 3, which is characterized in that the point of a knife is provided with cutter hub junction
The connected unit of one truncated rectangular pyramids structure, the big end of the connected unit connect point of a knife, and small end connects cutter hub, the big end of the connected unit
Width is 0.8-1mm, and the width of the connected unit small end is 0.6-0.7mm.
5. a kind of sclera tunnel knife according to claim 1, which is characterized in that be socketed with auxiliary gripping on the knife handle
Device.
6. a kind of sclera tunnel knife according to claim 5, which is characterized in that the axial direction of the auxiliary holding device
It is provided with an inner hole；The internal diameter of the inner hole is adapted with knife handle position；The lateral wall of the auxiliary holding device is provided with three
A curved surface positions depression, shape, position and the size and operator's thumb, index finger and middle finger of three curved surface positioning depressions
Finger-type match.
7. a kind of sclera tunnel knife according to claim 5, which is characterized in that the auxiliary holding device uses silica gel system
At.
8. a kind of sclera tunnel knife according to claim 5, which is characterized in that be provided with one on the outside of the cutter hub and point of a knife
Protective jacket.
9. a kind of sclera tunnel knife according to claim 8, which is characterized in that the protective jacket is divided into left side body and the right side
Side body carries out plug-in with fixture block by card slot between the left side body and right side body and connects；The left side body or
Groove compatible with cutter hub and point of a knife is provided on the body of right side.
10. a kind of sclera tunnel knife according to claim 1, which is characterized in that the arc tunnel construction sections of the cutter hub are perpendicular
There are 70-80 ° of angles in straight plane or between perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821602283.7U CN209422228U (en) | 2018-09-29 | 2018-09-29 | A kind of sclera tunnel knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821602283.7U CN209422228U (en) | 2018-09-29 | 2018-09-29 | A kind of sclera tunnel knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209422228U true CN209422228U (en) | 2019-09-24 |
Family
ID=67967039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821602283.7U Expired - Fee Related CN209422228U (en) | 2018-09-29 | 2018-09-29 | A kind of sclera tunnel knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209422228U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113041019A (en) * | 2021-03-11 | 2021-06-29 | 沈健 | Room corner separator |
| CN113425244A (en) * | 2021-06-25 | 2021-09-24 | 广西医科大学第二附属医院(广西医科大学第二临床医学院) | Sclera measuring device |
-
2018
- 2018-09-29 CN CN201821602283.7U patent/CN209422228U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113041019A (en) * | 2021-03-11 | 2021-06-29 | 沈健 | Room corner separator |
| CN113041019B (en) * | 2021-03-11 | 2022-11-22 | 沈健 | Room corner separator |
| CN113425244A (en) * | 2021-06-25 | 2021-09-24 | 广西医科大学第二附属医院(广西医科大学第二临床医学院) | Sclera measuring device |
| CN113425244B (en) * | 2021-06-25 | 2023-03-24 | 广西医科大学第二附属医院(广西医科大学第二临床医学院) | Sclera measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |