CN213722860U - Minimally invasive lacrimal passage bracket - Google Patents
Minimally invasive lacrimal passage bracket Download PDFInfo
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- CN213722860U CN213722860U CN202022048310.4U CN202022048310U CN213722860U CN 213722860 U CN213722860 U CN 213722860U CN 202022048310 U CN202022048310 U CN 202022048310U CN 213722860 U CN213722860 U CN 213722860U
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- tube body
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Abstract
The utility model relates to a medical field, especially a minimally invasive lacrimal passage support, including core bar and outer tube, the outer tube is including the body that is hollow structure, the uncovered setting of rear end of body, and the core bar stretches into the body, and the body is connected with disc structure, and the core bar outside is located to the disc structure cover. The minimally invasive lacrimal passage bracket can support the lacrimal duct lacrimal passage mucosa to be easy to epithelialize, the healing time after operation is faster, and the amount of lacrimation during intubation is less; when the upper lacrimal canaliculus or the lower lacrimal canaliculus is independently blocked and is traumatically fractured, the intubation can be independently carried out, the lacrimal canaliculus which is not blocked or fractured is not disturbed, the supporting requirement during the anastomosis operation that the upper lacrimal canaliculus and the lower lacrimal canaliculus are fractured can be met, the antegrade intubation and antegrade intubation along the physiological lacrimal canaliculus can be realized, compared with retrograde intubation, the intubation is not easy to pollute and is more in line with the anatomy physiology of human eyes, compared with retrograde intubation, the intubation is not easy to pollute, the passing path of the tube body in the lacrimal canaliculus is shorter, and the disturbed tissue is less.
Description
Technical Field
The utility model relates to the field of medical treatment, especially a minimally invasive lacrimal passage support.
Background
At present, the structure of the lacrimal duct bracket used in the ophthalmological lacrimal duct operation determines that physiological retrograde intubation and retrograde tube taking along the lacrimal canaliculus are common in the actual operation process, and the following defects exist in the process:
1. because the functional area is too thin in the lacrimal canaliculus and has no supporting and fixing functions, one lacrimal canaliculus is broken, the upper and lower lacrimal canaliculus can be inserted with the cannula to disturb the normal lacrimal canaliculus, the eyes are opened and closed, the lacrimal canaliculus can move along with the transient action of the eyelids, the movement disturbs the broken end of the lacrimal canaliculus, the lacrimal passage mucosa is not easy to form epithelialization, and the delayed healing is caused;
2. in the retrograde intubation process, the lacrimal passage is easily polluted;
3. in the process of taking the tube in the retrograde motion, the lacrimal passage is easy to pollute and fall off, the canaliculus lacrimalis is blocked by the intubation tube to influence the diversion of the lacrimal fluid, and the tube for the lacrimal passage stent has long passing path in the lacrimal canaliculus and much disturbance tissues.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: aiming at the problems that the functional area of the lacrimal passage bracket used in the ophthalmological lacrimal passage operation in the prior art is too thin in lacrimal canaliculus and has no supporting and fixing functions, and the lacrimal passage is easy to be polluted in the retrograde intubation process; in the process of taking the tube in the retrograde motion, the tube is easy to fall off, the intubation tube blocks the lacrimal canaliculus to influence the tear flow guide, the tube for the lacrimal passage stent has the problems of long passing path in the lacrimal canaliculus and much disturbance tissue, and the minimally invasive lacrimal passage stent is provided.
In order to realize the purpose, the utility model discloses a technical scheme be:
the minimally invasive lacrimal passage support comprises a core rod and an outer tube, wherein the outer tube comprises a tube body in a hollow structure, the core rod is used for supporting the tube body, the tube body can support lacrimal canaliculus, the rear end of the tube body is arranged in an open mode, the rear end of the tube body is connected with a disc-shaped structure, the core rod can axially extend into the tube body from the open end of the tube body, and when the core rod extends into the tube body, the disc-shaped structure is sleeved on the outer side of the core rod.
The minimally invasive lacrimal passage support is characterized in that the open end of a tube body is arranged at the rear end, a core rod extends from the open end of the tube body, when in use, the core rod extends into an outer tube to support the tube body, then a needle is inserted from a punctum, the core rod and the outer tube are arranged into the punctum together, the tube body enters the punctum, the front end of the tube body enters a nasal cavity after passing through the punctum, the tube body supports the punctum, a disc-shaped structure is arranged at the papilla of the punctum and closely attached to the papilla of the punctum, at the moment, as tears exist between the tube body and the papilla of the punctum, the air between the tube body and the papilla of the punctum can be discharged by the tears, so that the disc-shaped structure can be reversely pressed on the papilla of the punctum by atmospheric pressure, and as the disc-shaped structure is connected with the tube body, the tube body can be ensured to be basically not moved, then, the core rod is drawn out, only the tube body is left, and the front end of the tube body entering the nasal cavity is cut off by an auxiliary tool, cut to suitable length for the body still can support the lacrimal canaliculus, and the body that leaves is the open hollow structure who sets up in both ends, so has interim water conservancy diversion function to the tear. After the lacrimal passage mucosa is epithelialized, the tubular body is cut from the punctal papilla, and the tubular body in the lacrimal canaliculus is taken out from the nasal cavity. The advantages of such removal are: firstly, prevent the retrograde infection, secondly compare prior art, the body is shorter through the route in the lacrimal canaliculus, and the harassment tissue is few.
In summary, the minimally invasive lacrimal passage stent can support the lacrimal duct mucosa to form epithelialization more easily, so that the post-operation healing time is faster, and the number of lacrimation is less during intubation; when the upper lacrimal canaliculus or the lower lacrimal canaliculus are independently blocked and are fractured traumatically, intubation can be carried out independently, the lacrimal canaliculus which is not blocked or fractured is not disturbed, the supporting requirement during anastomosis operation that the upper lacrimal canaliculus and the lower lacrimal canaliculus are fractured can be met, antegrade intubation and antegrade intubation along the physiological lacrimal canaliculus can be realized, compared with retrograde intubation in the prior art, the intubation is not easy to pollute, the anatomy physiology of human eyes is better met, compared with retrograde intubation in the prior art, the intubation is not easy to pollute, the passage path of the tube body in the lacrimal canaliculus is shorter, and the disturbance tissue is less.
Preferably, the front end of the pipe body is provided with a pointed portion protruding outward in the axial direction of the pipe body.
When the lacrimal canaliculus is blocked or the lacrimal trunk is blocked, the tube body can be forced to pass through the sharp corner.
Preferably, the sharp corner is a conical structure.
When the lacrimal canaliculus is blocked or the lacrimal trunk is blocked, the tube body can force to pass through the sharp corner part in the conical structure, and the injury to the lacrimal canaliculus or the lacrimal trunk is less.
Preferably, the disc-like structure is an umbrella-like member, and the tube body is located inside the umbrella-like member. Based on the structure of the punctum papillae, the umbrella-shaped member enables the disk-shaped structure to better conform to the punctum papillae.
Preferably, the umbrella member is of an elliptical configuration. Based on the structure of punctum nipple, the umbrella-shaped component that the cross-section is oval can make that the disk structure is better to be laminated with the punctum nipple mutually, and based on the structure of eyelid, eyeball can not be interfered to oval structure, makes patient more comfortable.
Preferably, a through hole is arranged on the disc-shaped structure, and the core rod penetrates through the through hole.
Preferably, the first and second electrodes are formed of a metal,
the disc-shaped structure is a structural member made of silica gel,
and/or
The tube body is a structural member made of silica gel material,
and/or
The core rod is a metal structural part.
The rigidity of the core rod can enable the core rod to support the tube body, and the core rod can deform to a certain extent so as to adapt to angle change during tube insertion.
Preferably, the rear end of the core rod is connected with a handle, so that the operation is convenient.
Preferably, the disc-shaped structure and the tube body are integrally formed structural members.
Preferably, the outer diameter of the pipe body is 1mm-1.2 mm;
and/or the presence of a gas in the gas,
the diameter of the core rod is 0.8mm-0.9 mm.
And/or the presence of a gas in the gas,
the cross section of the disc-shaped structure is of an oval structure, wherein the length of the long axis of the oval structure is 1.5-2.5 mm, the length of the short axis of the oval structure is 1.3-1.7mm, and the thickness of the disc-shaped structure is 0.1-0.2 mm.
As the diameter of a human lacrimal canaliculus is generally 0.8mm, and human tissues have certain elasticity, the outer diameter of the tube body is 1mm-1.2mm, and the diameter of the core rod is 0.8mm, so that the tube body can achieve the purpose of supporting the lacrimal canaliculus.
Based on the structure of the punctal papillae, the umbrella-shaped member with the oval cross section can enable the disc-shaped structure to be better attached to the punctal papillae.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the minimally invasive lacrimal passage bracket can support the lacrimal duct mucosa to be easily epithelialized, so that the post-operation healing time is faster, and the amount of lacrimation is less during intubation; when the upper lacrimal canaliculus or the lower lacrimal canaliculus are independently blocked and are fractured traumatically, intubation can be carried out independently, the lacrimal canaliculus which is not blocked or fractured is not disturbed, the supporting requirement during anastomosis operation that the upper lacrimal canaliculus and the lower lacrimal canaliculus are fractured can be met, antegrade intubation and antegrade intubation along the physiological lacrimal canaliculus can be realized, compared with retrograde intubation in the prior art, the intubation is not easy to pollute, the anatomy physiology of human eyes is better met, compared with retrograde intubation in the prior art, the intubation is not easy to pollute, the passage path of the tube body in the lacrimal canaliculus is shorter, and the disturbance tissue is less.
2. When the minimally invasive lacrimal passage bracket meets the condition of canaliculus obstruction or common lacrimal duct obstruction, the pipe body can forcibly pass through the sharp corner part.
3. The application discloses minimal access lacrimal passage support, the disc structure is umbrella component, the body is located the inboard of umbrella component. Based on the structure of the punctum papillae, the umbrella-shaped member enables the disk-shaped structure to better conform to the punctum papillae.
4. The application the minimally invasive lacrimal passage support, the core bar is a metal structural part, the rigidity of the core bar can enable the core bar to support the pipe body, and the core bar can deform to a certain extent to adapt to angle change during pipe insertion.
5. According to the minimally invasive lacrimal passage support, the diameter of a lacrimal canaliculus of a person is generally 0.8mm, and human tissues have certain elasticity, so that the outer diameter of the tube body is 1mm-1.2mm, and the diameter of the core rod is 0.8mm, so that the tube body can achieve the purpose of supporting the lacrimal canaliculus.
Drawings
Fig. 1 is a schematic structural view (front view) of a minimally invasive lacrimal passage stent of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1 according to the present invention.
Fig. 3 is a cross-sectional view of the outer tube of the present invention.
Fig. 4 is a schematic structural view (perspective view) of a minimally invasive lacrimal passage stent of the present invention.
Fig. 5 is a schematic structural view (front view) of the disk structure of the present invention.
Icon: 1-core bar; 2-an outer tube; 21-a disk-like structure; 211-a through hole; 22-a tube body; 221-sharp corner; and 3, a handle.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in fig. 1-5, a minimally invasive lacrimal passage bracket comprises a core bar 1 and an outer tube 2, wherein the outer tube 2 comprises a tube body 22 having a hollow structure, a disc-shaped structure 21 is connected to a rear end of the tube body 22, and when the core bar 1 extends into the tube body 22, the disc-shaped structure 21 is sleeved outside the core bar 1, wherein,
the core rod 1 is used for supporting the tube body 22, and the core rod 1 can axially extend into the tube body 22 from the open end of the tube body 22; the rear end of the core bar 1 is connected with a handle 3, so that the operation is convenient.
The tube 22 is capable of supporting the canaliculus, punctum and common lacrimal duct, the rear end of the tube 22 is open, the front end of the tube 22 is sealingly disposed, the front end of the tube 22 is provided with a sharp corner 221, and the sharp corner 221 protrudes axially outward along the tube 22. When the lacrimal canaliculus obstruction or the lacrimal trunk obstruction is met, the tube body 22 can be forced to pass through and is supported by the sharp corner part 221, the sharp corner part 221 is preferably in a conical shape, and when the lacrimal canaliculus obstruction or the lacrimal trunk obstruction is met, the tube body can be forced to pass through by the sharp corner part in a conical structure, and the injury to the lacrimal canaliculus or the lacrimal trunk is less;
the disc-like structure 21 is an umbrella-like member, and the tube 22 is located inside the umbrella-like member. Based on the structure of the punctum papillae, the umbrella-shaped member enables the disk-shaped structure 21 to better conform to the punctum papillae; the disc-shaped structure 21 is provided with a through hole 211, the through hole 211 is communicated with the tube body 22, the through hole 211 is coaxially arranged with the tube body 22, the core rod 1 penetrates through the through hole 211, and as shown in fig. 5, the disc-shaped structure 21 is preferably an oval structure. Based on the structure of punctum nipple, the umbrella-shaped component that the cross-section is oval can make that the disk structure is better to be laminated with the punctum nipple mutually, and based on the structure of eyelid, eyeball can not be interfered to oval structure, makes patient more comfortable.
In the actual production process, the following are preferable in terms of material:
on the basis, in a further preferable mode, the disc-shaped structure 21 is a structural member made of a silicone material.
On the basis, in a further preferable mode, the tube 22 is a silica gel structural member.
The core bar 1 is a metal structural member. The rigidity of the core rod 1 can enable the core rod 1 to support the tube body 22, and the core rod 1 can deform to a certain extent to adapt to the angle change during intubation.
In addition, in a more preferable mode, the disc-shaped structure 21 and the pipe body 22 are integrally formed.
In the actual production process, it is preferable in terms of size that:
the outer diameter of the tube body 22 is 1mm to 1.2mm, and the diameter of the core rod 1 is 0.8mm to 0.9mm, preferably 0.8 mm.
As the diameter of the human lacrimal canaliculus is generally 0.8mm and the human tissue has certain elasticity, the outer diameter of the tube body 22 is 1mm-1.2mm, and the diameter of the core rod 1 is 0.8mm-0.9mm, so that the tube body 22 can achieve the purpose of supporting the lacrimal canaliculus.
The length of the tube 22 is about 8 cm.
The section of the disc-shaped structure 21 is of an oval structure, wherein the length of the long axis of the oval structure is 1.5-2.5 mm, the length of the short axis of the oval structure is 1.3-1.7mm, and the thickness of the disc-shaped structure 21 is 0.1-0.2 mm.
The umbrella-shaped member with an oval cross-section can make the disc-shaped structure better fit with the punctal papillae, the oval-shaped structure preferably has a long axis of 2mm, a short axis of 1.5mm in length, a thickness of 0.2mm in the middle near the tube 22, and the thickness gradually decreases to 0.1mm toward the edge, so that the disc-shaped structure 21 can be prevented from reversely deforming (the tube 22 is positioned at the outer side of the deformed umbrella-shaped member).
The core rod 1 and the outer pipe body 22 are in a piston-type fit state.
The minimally invasive lacrimal passage support is simple to operate and easy to master during use, the open end of the tube body 22 is arranged at the rear end, the core rod 1 extends from the open end of the tube body 22, the core rod 1 extends into the outer tube 2 from the open end to support the tube body 22 during use, after local anesthesia, a needle is inserted from a punctum, the core rod 1 and the outer tube 2 are arranged into the punctum together, the tube body 22 enters the lacrimal canaliculus, the front end of the tube body 22 enters a nasal cavity after passing through the lacrimal canaliculus, the tube body 22 supports the lacrimal canaliculus, the disc-shaped structure 21 is arranged at the papilla of the punctum, the disc-shaped structure 21 is closely attached to the papilla of the punctum, at the moment, as tears are arranged between the tube body 22 and the punctum, air between the tube body 22 and the punctum can be discharged by utilizing the tears, so that the disc-shaped structure 21 can be reversely compacted on the papilla of the punctum by utilizing atmospheric pressure, and the disc-shaped structure 21 is connected with the tube body 22, at this time, the tube body 22 can be ensured not to move basically, then the core rod 1 is drawn out, only the tube body 22 is left, the front end of the tube body 22 entering the nasal cavity is cut under the endoscope to a proper length, so that the tube body 22 can still support the lacrimal canaliculus, and the left tube body 22 is of a hollow structure with two open ends, so that the lacrimal fluid has a temporary flow guiding function.
After 3-6 months, after the lacrimal mucosa is epithelialized, the tubular body 22 is cut from the punctal papilla, and the tubular body 22 in the lacrimal canaliculus is removed from the nasal cavity. The advantages of such removal are: firstly, prevent the retrograde infection, secondly compare prior art, body 22 is shorter through the route in the lacrimal canaliculus, and the harassing tissue is few, and this structure is the intubate that the minimum comfort level of spilling tear is high during present patient's intubate.
The beneficial effects of this embodiment: the minimally invasive lacrimal passage bracket can support lacrimal canaliculi, lacrimal punctum and common lacrimal duct, and lacrimal passage mucosa is easy to epithelialize, so that the healing time after operation is faster, and the amount of epiphora during intubation is less; when the upper lacrimal canaliculus or the lower lacrimal canaliculus is independently blocked and is traumatically fractured, the intubation can be independently carried out, the unblocked or fractured lacrimal canaliculus is not disturbed, and the supporting requirement of the anastomosis operation that the upper lacrimal canaliculus and the lower lacrimal canaliculus are fractured can be met; and can realize following the intubate of walking forward and taking the pipe along physiological lacrimal canaliculus, compare the retrograde intubation of prior art, be difficult for polluting, accord with human eye anatomy physiology more, and compare the retrograde tube of prior art, be difficult for polluting, body 22 is shorter through the route in the lacrimal canaliculus, and the harassment tissue is few.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The minimally invasive lacrimal passage support is characterized by comprising a core rod (1) and an outer tube (2), wherein the outer tube (2) comprises a tube body (22) in a hollow structure, the core rod (1) is used for supporting the tube body (22), the tube body (22) can support lacrimal canaliculus, the rear end of the tube body (22) is arranged in an open manner, the rear end of the tube body (22) is connected with a disc-shaped structure (21), the core rod (1) can axially extend into the tube body (22) from the open end of the tube body (22), and when the core rod (1) extends into the tube body (22), the disc-shaped structure (21) is sleeved outside the core rod (1).
2. The minimally invasive lacrimal stent according to claim 1, wherein a front end of the tube (22) is provided with a sharp corner (221), the sharp corner (221) protruding axially outward along the tube (22).
3. The minimally invasive lacrimal stent according to claim 2, wherein the sharp corner (221) is a conical structure.
4. A minimally invasive lacrimal stent according to claim 1, wherein the disc-shaped structure (21) is an umbrella-shaped member, the tube (22) being located inside the umbrella-shaped member.
5. The minimally invasive lacrimal stent of claim 4, wherein the umbrella member is of an elliptical configuration.
6. The minimally invasive lacrimal stent according to claim 3, wherein a through hole (211) is formed in the disc-shaped structure (21), and the core bar (1) penetrates through the through hole (211).
7. The minimally invasive lacrimal stent according to claim 1, wherein the disc-shaped structure (21) is a structural member of silicone material,
and/or the presence of a gas in the gas,
the tube body (22) is a silica gel structural member,
and/or the presence of a gas in the gas,
the core rod (1) is a metal structural part.
8. The minimally invasive lacrimal stent according to claim 1, wherein a handle (3) is connected to a rear end of the core rod (1).
9. The minimally invasive lacrimal stent according to claim 1, wherein the disc-shaped structure (21) and the tube (22) are an integrally formed structural member.
10. The minimally invasive lacrimal stent according to any one of claims 1-9,
the outer diameter of the pipe body (22) is 1mm-1.2 mm;
and/or the presence of a gas in the gas,
the diameter of the core rod (1) is 0.8mm-0.9 mm;
and/or the presence of a gas in the gas,
the section of the disc-shaped structure (21) is of an oval structure, wherein the length of the long axis of the oval structure is 1.5-2.5 mm, the length of the short axis of the oval structure is 1.3-1.7mm, and the thickness of the disc-shaped structure (21) is 0.1-0.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022048310.4U CN213722860U (en) | 2020-09-17 | 2020-09-17 | Minimally invasive lacrimal passage bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022048310.4U CN213722860U (en) | 2020-09-17 | 2020-09-17 | Minimally invasive lacrimal passage bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213722860U true CN213722860U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022048310.4U Active CN213722860U (en) | 2020-09-17 | 2020-09-17 | Minimally invasive lacrimal passage bracket |
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| CN (1) | CN213722860U (en) |
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- 2020-09-17 CN CN202022048310.4U patent/CN213722860U/en active Active
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