CN114601628B - Intraocular object delivery device and method - Google Patents
Intraocular object delivery device and method Download PDFInfo
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- CN114601628B CN114601628B CN202210378087.0A CN202210378087A CN114601628B CN 114601628 B CN114601628 B CN 114601628B CN 202210378087 A CN202210378087 A CN 202210378087A CN 114601628 B CN114601628 B CN 114601628B
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- 238000000034 method Methods 0.000 title abstract description 20
- 238000003780 insertion Methods 0.000 claims abstract description 45
- 230000037431 insertion Effects 0.000 claims abstract description 45
- 230000008602 contraction Effects 0.000 claims description 35
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- 230000006386 memory function Effects 0.000 claims description 2
- 244000309464 bull Species 0.000 claims 4
- 239000007943 implant Substances 0.000 claims 1
- 239000013078 crystal Substances 0.000 abstract description 34
- 230000006378 damage Effects 0.000 abstract description 8
- 210000001525 retina Anatomy 0.000 abstract description 6
- 206010067268 Post procedural infection Diseases 0.000 abstract description 5
- 230000000451 tissue damage Effects 0.000 abstract description 3
- 231100000827 tissue damage Toxicity 0.000 abstract description 3
- 238000001356 surgical procedure Methods 0.000 abstract description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 13
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- 230000002441 reversible effect Effects 0.000 description 3
- 210000003128 head Anatomy 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- 206010038848 Retinal detachment Diseases 0.000 description 1
- 208000026062 Tissue disease Diseases 0.000 description 1
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
- A61F9/00754—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments for cutting or perforating the anterior lens capsule, e.g. capsulotomes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
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Abstract
The invention relates to the technical field of intraocular surgery, in particular to an intraocular delivery device and a method, which comprises an insertion tube and an adjusting mechanism, wherein one end of the insertion tube is provided with an upper hemisphere, one end of the upper hemisphere is provided with a lower hemisphere, the inner wall of one end of the insertion tube is uniformly provided with positioning grooves, positioning plates are slidably connected inside the positioning grooves, a fixing piece is fixedly connected to the middle upper end inside the insertion tube, a moving tube is arranged inside the insertion tube, and one end of a first rotating piece is fixedly connected with a first bevel gear. This device can wrap up the back with the crystal, is smashing the back and is holding its suction, and whole process need not the user and holds between the fingers the crystal and press from both sides out, and then can avoid the crystal to fall into intraocular tissues such as eye ground damage retina, also can avoid rubbing incision department repeatedly, and then the degree of difficulty that reduces the operation time, reduces incision and eye ground tissue damage and the risk of postoperative infection.
Description
Technical Field
The invention relates to the technical field of intraocular surgery, in particular to an intraocular object delivery device and a method.
Background
The vitreous body is a semisolid colloidal substance in the eyes, is filled in the cavity of the vitreous body, and has good light transmittance under normal conditions. If the vitreous body is diseased, a light person can feel that mosquitoes fly in front of eyes when seeing the vitreous body, a heavy person can completely shield light rays to lose sight, and peripheral tissue diseases such as retinal detachment and the like can be caused. The basic functions of vitrectomy are to remove turbid vitreous or vitreoretinal traction, restore clear refractive interstitium and facilitate retinal replacement, treat vitreoretinal disease, and restore visual function to the patient. When the crystal or foreign matter enters the vitreous cavity due to trauma or operation, the crystal or foreign matter is taken out by vitreous operation, the crystal falling into the vitreous cavity is usually absorbed after being converted into fragments by methods such as ultrasonic pulverization, ultrasonic emulsification or biting and cutting of a vitreous cutting head, but the ultrasonic energy or the tiny fragments of the crystal splash during the operation process and easily damage the fragile intraocular peripheral tissues, especially the retina at the innermost layer of the vitreous cavity wall, thus causing visual impairment;
at present, partial vitreous body operation is usually performed on the foreign matters entering eyes by using intraocular forceps, the foreign matters are often taken out by using the intraocular forceps, are not firmly gripped in the taking-out process, fall into ocular tissues such as retina injury and the like again, or rub with an incision at an incision, and fall off repeatedly, so that the operation difficulty is increased, the operation time is prolonged, and the risks of injury of the incision and the ocular fundus tissues and postoperative infection are increased.
Disclosure of Invention
The invention aims to provide an intraocular object delivery device and a method, which are used for solving the problems that the foreign matters entering eyes are taken out in the partial vitreous body operation proposed in the background technology, usually, the foreign matters are taken out by using intraocular forceps which are often not firmly gripped in the taking-out process and fall into the intraocular tissues such as the retina damaged by the eyeground, or the foreign matters are rubbed with the incision at the incision, so that the foreign matters fall repeatedly, the operation difficulty is increased, the operation time is prolonged, the risks of injury of the incision and the eyeground tissues and postoperative infection are increased.
In order to achieve the purpose, the invention provides the following technical scheme: an intraocular delivery device and method, comprising an insertion tube and an adjusting mechanism, wherein one end of the insertion tube is provided with an upper hemisphere, one end of the upper hemisphere is provided with a lower hemisphere, the inner wall of one end of the insertion tube is uniformly provided with a positioning groove, the inside of the positioning groove is slidably connected with a positioning plate, one end of the positioning plate is fixedly connected with one side of the upper hemisphere, the middle upper end inside the insertion tube is fixedly connected with a fixing part, the inside of the insertion tube is provided with a moving tube, the middle part of the moving tube is slidably connected with the fixing part, one end of the moving tube is fixedly connected with the upper hemisphere, the inside of the moving tube is provided with a straw, one end of the straw is connected with the upper hemisphere, the inside of the insertion tube is provided with an outer tube, one end of the outer tube is fixedly connected with the upper hemisphere, the middle part of the outer tube is slidably connected with the fixing part, the inside of the outer tube is slidably connected with an inner tube, one end of the inner tube is fixedly connected with the lower hemisphere, one end of the insertion tube is provided with a first clamp body, one end of the first clamp body is fixedly connected with one end of the outer tube, one end of the insertion tube is provided with a second clamp body, one end of the second clamp body is fixedly connected with the inner tube, one end of the second clamp body is provided with a sliding groove, the inside of the sliding groove is connected with a sliding piece in a sliding manner, the bottom end of the sliding piece is fixedly connected with the inner tube, the middle part of the first clamp body is rotatably connected with a second rotating piece, two ends of the second rotating piece are fixedly connected with the middle part of the second clamp body, a first contraction rope is arranged inside the outer tube, the first contraction rope penetrates through the outer tube and is positioned inside the upper hemisphere, one end of the first contraction rope penetrates through the largest diameter of the upper hemisphere, a second contraction rope is arranged inside the inner tube, and the second contraction rope penetrates through the inner tube and is positioned inside the lower hemisphere, one end of the second contraction rope penetrates through the maximum diameter of the lower hemisphere.
Preferably, the side of the upper hemisphere, which is close to the lower hemisphere, is serrated, and the serrations mesh with each other to allow shearing.
Preferably, the size of constant head tank all with the size looks adaptation of constant head tank, the internal diameter of outer tube and the external diameter looks adaptation of inner tube, the removal of locating plate and inner tube is convenient for to the size of looks adaptation.
Preferably, the moving mechanism comprises a side plate, a through groove, a connecting plate, a thread, a first threaded rod, a transmission bin, a first through groove, a second through groove, a first rotating rod, a first rotating member, a first bevel gear and a second bevel gear, the side plate is fixedly connected to the middle upper portion of the insertion tube, the through groove is formed in the middle upper portion of the insertion tube, one side of the through groove, which penetrates through the fixing member, is connected to the connecting plate in a sliding mode, one end of the connecting plate is fixedly connected with the moving tube, a threaded sleeve is connected to the inner wall of one end of the side plate through a bearing, the first threaded rod is connected to the inside of the threaded sleeve through a thread, one end of the first threaded rod is fixedly connected to the connecting plate, the transmission bin is formed in one end of the side plate, the second through groove is formed in one end of the side plate, one end of the second rotating groove is connected to the transmission bin, the first rotating rod is connected to the inner wall of one end of the side plate, the first rotating rod is fixedly connected to the second rotating gear, and the first rotating rod is connected to the first rotating member, and the second rotating gear is connected to the first rotating member.
Preferably, the adjusting mechanism includes a first spring, a ratchet wheel, a movable bin, a threaded hole, a connecting groove, a second threaded rod, a rotating handle, a first movable plate, a second spring and a ratchet, the middle of the second clamp body is fixedly connected with the first spring, one end of the first spring is fixedly connected with the middle of the first clamp body, the outer surface of the second rotating piece is fixedly connected with the ratchet wheel, the movable bin is arranged at the middle of the first clamp body, the threaded hole is arranged in the inner wall of one end of the movable bin, the connecting groove is arranged in the inner wall of the other end of the movable bin and is connected with the inside of the first clamp body, the second threaded rod is connected in the threaded hole through a thread, one end of the second threaded rod is fixedly connected with the rotating handle, the other end of the second threaded rod is connected with the first movable plate through a bearing, the first connecting groove is slidably connected with the movable bin, one end of the movable bin is slidably connected with the second movable plate, one side of the second movable plate is uniformly fixedly connected with the second spring, one end of the ratchet wheel is connected with the second movable plate, and is meshed with a user of the second clamp body to facilitate simultaneous control of the crushing of the user.
Preferably, the size of the first moving plate is the same as that of the second moving plate, the size of the moving bin is matched with that of the first moving plate, and the matched size facilitates the movement of the second moving plate and the first moving plate.
Preferably, the size of the connecting groove is matched with that of the ratchet, and the matched size facilitates the movement of the ratchet.
Preferably, the first bevel gear and the second bevel gear are both located inside the transmission bin, and the first bevel gear is meshed with the second bevel gear to facilitate transmission.
The present invention includes an intraocular delivery device and method: the operation method of the device comprises the following steps:
the method comprises the following steps: the user pulls the first contraction rope and the second contraction rope, so that the ball mouths of the upper hemisphere and the lower hemisphere can be contracted, the volumes of the upper hemisphere and the lower hemisphere are reduced, then one end of the insertion tube with the upper hemisphere and the lower hemisphere is inserted into the cavity of the glass body, the user loosens the first contraction rope and the second contraction rope, the first contraction rope and the second contraction rope recover under the self-memory effect of the upper hemisphere and the lower hemisphere, the user rotates the first rotating piece, the first rotating piece drives the first bevel gear, the second bevel gear, the first rotating rod and the threaded sleeve to rotate, the rotating threaded sleeve can enable the first threaded rod to extend, one end of the first threaded rod drives the connecting plate and the moving tube to move, the moving tube drives the lower hemisphere, the upper hemisphere, the suction tube, the inner tube and the first caliper body to move, and at the moment, the lower hemisphere of the user stops rotating the first rotating piece after moving to the required position;
step two: the user rotates the rotating hand, the ratchets can not be meshed with the ratchet wheel any more through the threaded holes, the second threaded rod, the first moving plate, the second spring and the second moving plate, the user can enable fingers to penetrate through one ends of the first clamp body and the second clamp body and enable one ends to be far away from each other, one ends of the first clamp body and one ends of the second clamp body, which are located on one side of the insertion tube, are close to each other, the inner tube moves inside the outer tube at the moment, the upper hemisphere and the lower hemisphere can be separated through the outer tube and the inner tube, the user rotates the rotating hand in a reverse mode after adjusting the upper hemisphere and the lower hemisphere to the two sides of the crystal, the ratchets can be meshed with the ratchet wheel through the threaded holes, the second threaded rod, the first moving plate, the second spring and the second moving plate, the first clamp body and the second clamp body can be fixed in a single direction through the first spring, the ratchets and the ratchet wheel, the upper hemisphere and the lower hemisphere are separated after the user loosens the first clamp body, and the crystal is wrapped by the user;
step three: at last the user alright smash the inside crystal of episphere and lower hemisphere, smash the end back, the crystal suction after user's accessible straw will be smashed, the suction back, the user repeats above-mentioned step alright wrap up once more, smash and suction, when the user need take out this device, the user stimulates first shrink rope and second shrink rope once more, thereby can make the shrinkage of the muzzle department of episphere and lower hemisphere, and then reduce the volume of episphere and lower hemisphere, be convenient for the user take out this device.
Compared with the prior art, the invention has the beneficial effects that:
when a user performs an operation, the user pulls the first contraction rope and the second contraction rope, so that the ball mouths of the upper hemisphere and the lower hemisphere can be contracted, the size of the upper hemisphere and the size of the lower hemisphere can be reduced, the device can be conveniently placed into an eye by the user, the user inserts one end of the device into the glass body cavity, the first contraction rope and the second contraction rope are loosened and can be restored under the self action of the first contraction rope and the second contraction rope, then the first rotating piece is rotated, the first rotating rod and the threaded sleeve can be rotated through the first conical gear and the second conical gear, the first threaded rod and the connecting plate can be moved through the rotated threaded sleeve, the moving pipe can slide in the inserting pipe through the connecting plate, the upper hemisphere and the lower hemisphere are driven to move simultaneously, the upper hemisphere and the lower hemisphere are convenient to move by the user, after the upper hemisphere and the lower hemisphere are moved to required positions by the user, the user can move the inner pipe in the outer pipe through the first clamp body and the second clamp body, the crystal to be crushed can be wrapped by the upper hemisphere and the lower hemisphere through the inner tube, the second rotating piece can be rotated by the second clamp body, the opening angles of the first clamp body and the second clamp body can be adjusted through the ratchet and the ratchet wheel, the first clamp body and the second clamp body can be locked through the ratchet and the first spring, a user can conveniently fix the first clamp body and the second clamp body, the user does not need to clamp the first clamp body and the second clamp body by hands at all, so that the user can carry out other work, after wrapping the crystal by the upper hemisphere and the lower hemisphere, the user can crush the crystal, fine fragments of crushed instruments or crushed crystals can be prevented from splashing to damage tissues around eyes, the safety of the user in crushing is further improved, after crushing is finished, the crushed crystals on the inner walls of the upper hemisphere and the lower hemisphere can be sucked out by the suction tube, thereby the user can wrap up and smash the crystal once more, and this device can wrap up the crystal after, smashes the back and is being its suction, and whole process need not the user and pinches the crystal and press from both sides out, and then can avoid the crystal to fall into intraocular tissues such as eye ground damage retina, also can avoid rubbing incision repeatedly department, and then the degree of difficulty that reduces the operation reduces operation time, reduces incision and eye ground tissue damage and the risk of postoperative infection.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic cross-sectional perspective view of the present invention;
FIG. 3 is an enlarged perspective view taken at A of FIG. 2 according to the present invention;
FIG. 4 is an enlarged perspective view of FIG. 2 at B according to the present invention;
FIG. 5 is an enlarged perspective view taken at C of FIG. 2 in accordance with the present invention;
FIG. 6 is a perspective view of the interior of the insertion tube of the present invention;
FIG. 7 is a schematic cross-sectional perspective view of the first jaw body, the second jaw body and the second threaded rod of the present invention;
FIG. 8 is an exploded perspective view of the insert tube, inner tube and threaded sleeve of the present invention;
fig. 9 is an exploded perspective view of the first and second bodies and ratchet teeth of the present invention.
In the figure: 1. an insertion tube; 2. an upper hemisphere; 3. a lower hemisphere; 4. positioning a groove; 5. positioning a plate; 6. a fixing member; 7. moving the tube; 8. a straw; 9. an outer tube; 10. an inner tube; 11. a side plate; 12. penetrating a groove; 13. a connecting plate; 14. a threaded sleeve; 15. a first threaded rod; 16. a transmission bin; 17. a first rotary groove; 18. a second rotary groove; 19. a first rotating lever; 20. a first rotating member; 21. a first bevel gear; 22. a second bevel gear; 23. a first caliper body; 24. a second caliper body; 25. a chute; 26. a slider; 27. a second rotating member; 28. a first spring; 29. a ratchet wheel; 30. moving the bin; 31. a threaded hole; 32. connecting grooves; 33. a second threaded rod; 34. turning the hand; 35. a first moving plate; 36. a second moving plate; 37. a second spring; 38. a ratchet; 39. a first retraction cord; 40. a second retraction cord.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, an embodiment of the present invention is shown:
an intraocular delivery device and a method thereof, comprising an insertion tube 1 and an adjusting mechanism, wherein one end of the insertion tube 1 is provided with an upper hemisphere 2, one end of the upper hemisphere 2 is provided with a lower hemisphere 3, the upper hemisphere 2 and the lower hemisphere 3 have memory function, so as to be convenient for the restoration after the compression at the ball mouths of the upper hemisphere 2 and the lower hemisphere 3, the inner wall of one end of the insertion tube 1 is uniformly provided with a positioning groove 4, the inside of the positioning groove 4 is slidably connected with a positioning plate 5, one end of the positioning plate 5 is fixedly connected with one side of the upper hemisphere 2, the middle upper end inside the insertion tube 1 is fixedly connected with a fixing part 6, the inside of the insertion tube 1 is provided with a moving tube 7, the middle part of the moving tube 7 is slidably connected with the fixing part 6, one end of the moving tube 7 is fixedly connected with the upper hemisphere 2, the inside of the moving tube 7 is provided with a suction tube 8, one end of the suction tube 8 is connected with the upper hemisphere 2, the inside of the insertion tube 1 is provided with an outer tube 9, one end of the outer tube 9 is fixedly connected with the upper hemisphere 2, the middle of the outer tube 9 is slidably connected with the fixing member 6, the inner tube 10 is slidably connected inside the outer tube 9, one end of the inner tube 10 is fixedly connected with the lower hemisphere 3, one end of the insertion tube 1 is provided with the first caliper body 23, one end of the first caliper body 23 is fixedly connected with one end of the outer tube 9, one end of the insertion tube 1 is provided with the second caliper body 24, one end of the second caliper body 24 is fixedly connected with the inner tube 10, one end of the second caliper body 24 is provided with the sliding groove 25, the inside of the sliding groove 25 is slidably connected with the slider 26, the bottom end of the slider 26 is fixedly connected with the inner tube 10, the middle of the first caliper body 23 is rotatably connected with the second rotating member 27, both ends of the second rotating member 27 are fixedly connected with the middle of the second caliper body 24, the inside of the outer tube 9 is provided with the first contraction rope 39, and the first contraction rope 39 penetrates through the outer tube 9 and is positioned inside the upper hemisphere 2, one end of the first contraction rope 39 penetrates through the maximum diameter of the upper hemisphere 2, a second contraction rope 40 is arranged inside the inner pipe 10, the second contraction rope 40 penetrates through the inner pipe 10 and is positioned inside the lower hemisphere 3, and one end of the second contraction rope 40 penetrates through the maximum diameter of the lower hemisphere 3;
in this embodiment, the moving mechanism includes a side plate 11, a through groove 12, a connecting plate 13, a threaded sleeve 14, a first threaded rod 15, a transmission bin 16, a first rotating groove 17, a second rotating groove 18, a first rotating rod 19, a first rotating member 20, a first bevel gear 21 and a second bevel gear 22, the middle upper portion of the insertion tube 1 is fixedly connected with the side plate 11, the middle upper portion of the insertion tube 1 is provided with the through groove 12, and one side of the through groove 12, which passes through the fixing member 6, is slidably connected with the connecting plate 13, and one end of the connecting plate 13 is fixedly connected with the moving tube 7, the inner wall of one end of the side plate 11 is connected with the threaded sleeve 14 through a bearing, the inside of the threaded sleeve 14 is connected with the first threaded rod 15 through a thread, and one end of the first rotating rod 15 is fixedly connected with the connecting plate 13, one end of the side plate 11 is provided with the transmission bin 16, one end of the side plate 11 is provided with the second rotating groove 18, and one end of the second rotating groove 18 is connected with the transmission bin 16, the inner wall of the side plate 11 is provided with the first rotating groove 17, and the first rotating rod 21 is connected with the first rotating gear 19, and the first rotating gear 14, and the other end of the first rotating gear 14 is connected with the first rotating gear 21, and the first rotating gear 14, and the second bevel gear 14, and the first rotating gear 14, and the second bevel gear 14, and the first rotating gear is connected with the first rotating gear 14, and the first rotating gear 21, and the second bevel gear 14, and the first rotating gear 14, the moving groove 12 drives the moving tube 7 to move inside the insertion tube 1, the moving tube 7 drives the lower hemisphere 3, the upper hemisphere 2, the suction tube 8, the inner tube 10 and the first pincer body 23 to move, at this time, after the user moves the lower hemisphere 3 to a desired position, the first rotating member 20 stops rotating, so that the user can move the upper hemisphere 2 and the lower hemisphere 3 to the desired position, the adjusting mechanism comprises a first spring 28, a ratchet 29, a moving bin 30, a threaded hole 31, a connecting groove 32, a second threaded rod 33, a rotating handle 34, a first moving plate 35, a second moving plate 36, a second spring 37 and a ratchet 38, the middle of the second pincer body 24 is fixedly connected with the first spring 28, one end of the first spring 28 is fixedly connected with the middle of the first pincer body 23, the outer surface of the second rotating member 27 is fixedly connected with the ratchet 29, the moving bin 30 is arranged in the middle of the first pincer body 23, a threaded hole 31 is formed in the inner wall of one end of the movable bin 30, a connecting groove 32 is formed in the inner wall of the other end of the movable bin 30, the connecting groove 32 is connected with the inside of the first pincer body 23, a second threaded rod 33 is connected with the inside of the threaded hole 31 through threads, a rotating handle 34 is fixedly connected with one end of the second threaded rod 33, a first moving plate 35 is connected with the other end of the second threaded rod 33 through a bearing, the first moving plate 35 is connected with the movable bin 30 in a sliding manner, a second moving plate 36 is connected with one end of the movable bin 30 in a sliding manner, a second spring 37 is uniformly and fixedly connected with one side of the second moving plate 36, one end of the second spring 37 is fixedly connected with the first moving plate 35, a ratchet 38 is connected with the inside of the connecting groove 32 in a sliding manner, one end of the ratchet 38 is fixedly connected with the second moving plate 36, one end of the ratchet 38 is meshed with the ratchet 29, and a user can conveniently control the angle between the first pincer body 23 and the second pincer body 24, meanwhile, the crushing work of the user is convenient,
the first bevel gear 21 and the second bevel gear 22 are both positioned inside the transmission bin 16, the first bevel gear 21 is meshed with the second bevel gear 22 to facilitate transmission, the size of the connecting groove 32 is matched with that of the ratchet 38, the matched size facilitates movement of the ratchet 38, the size of the through groove 12 is matched with that of the connecting plate 13, the matched size facilitates movement of the connecting plate 13, the size of the positioning groove 4 is matched with that of the positioning plate 5, the inner diameter of the outer pipe 9 is matched with the outer diameter of the inner pipe 10, the matched size facilitates movement of the positioning plate 5 and the inner pipe 10, one sides of the upper hemisphere 2 and the lower hemisphere 3, which are close to each other, are in a sawtooth shape, and the sawteeth are meshed to perform shearing;
the operation method of the device comprises the following steps:
the method comprises the following steps: the user pulls the first contraction rope 39 and the second contraction rope 40, so that the sockets of the upper hemisphere 2 and the lower hemisphere 3 can be contracted, the volume of the upper hemisphere 2 and the lower hemisphere 3 can be reduced, and then after the end of the insertion tube 1 with the upper hemisphere 2 and the lower hemisphere 3 is inserted into the cavity of the glass body, the user loosens the first contraction rope 39 and the second contraction rope 40, the upper hemisphere 2 and the lower hemisphere 3 recover from the original shape under the action of self memory, the user rotates the first rotating member 20, the first rotating member 20 drives the first bevel gear 21, the second bevel gear 22, the first rotating rod 19 and the threaded sleeve 14 to rotate, the rotating threaded sleeve 14 can extend the first threaded rod 15, one end of the first threaded rod 15 drives the connecting plate 13 and the moving tube 7 to move, the moving tube 7 drives the lower hemisphere 3, the upper hemisphere 2, the suction tube 8, the inner tube 10 and the first caliper body 23 to move, at this time, after the lower hemisphere 3 of the user moves to a desired position, the user stops rotating the first rotating member 20;
step two: the user rotates the rotating hand 34, the ratchet 38 can be prevented from being engaged with the ratchet wheel 29 by the threaded hole 31, the second threaded rod 33, the first moving plate 35, the second spring 37 and the second moving plate 36, the user can pass fingers through one end of the first forceps body 23 and the second forceps body 24 and make one end away from each other, the end of the first forceps body 23 and the end of the second forceps body 24 on one side of the insertion tube 1 are close to each other, the inner tube 10 moves inside the outer tube 9, the upper hemisphere 2 and the lower hemisphere 3 can be separated by the outer tube 9 and the inner tube 10, the user rotates the rotating hand 34 reversely after adjusting the upper hemisphere 2 and the lower hemisphere 3 to two sides of the crystal, the ratchet 38 can be engaged with the ratchet wheel 29 by the threaded hole 31, the second threaded rod 33, the first moving plate 35, the second spring 37 and the second spring 36, the angles of the first forceps body 23 and the second forceps body 24 can be fixed unidirectionally by the first spring 28, the spring 38 and the ratchet wheel 29, the user can avoid the separation of the upper hemisphere 23 and the lower hemisphere 3 after the user loosens the first forceps body 23 and the second moving plate 24, and the upper hemisphere 3 can be wrapped by the user;
step three: at last the user alright smash the inside crystal of upper hemisphere 2 and lower hemisphere 3, after smashing, the user can be through the suction pipe 8 with the crystal suction after smashing, the suction back, the user repeats above-mentioned step alright wrap up once more, smash and suction, when the user need take out this device, the user stimulates first shrink rope 39 and second shrink rope 40 once more, thereby can make the ball mouth department shrink of upper hemisphere 2 and lower hemisphere 3, and then reduce the volume of upper hemisphere 2 and lower hemisphere 3, be convenient for the user to take out this device.
The working principle is as follows: the user pulls the first and second retraction cords 39 and 40 first, the first and second retraction cords 39 and 40 can retract the sockets of the upper and lower hemispheres 2 and 3, and further reduce the volume of the upper and lower hemispheres 2 and 3, so that the user can put the device into the eye, then the user inserts the end of the insertion tube 1 with the upper and lower hemispheres 2 and 3 into the vitreous cavity, the user loosens the first and second retraction cords 39 and 40, the upper and lower hemispheres 3 recover under the action of their own memory, the user rotates the first rotating member 20, the first rotating member 20 drives the first bevel gear 21 to rotate, the first bevel gear 21 drives the second bevel gear 22 to rotate, the first rotating gear 22 drives the first rotating rod 19 to rotate, the first rotating rod 19 drives the threaded sleeve 14 to rotate inside the second side plate 11, the rotating threaded sleeve 14 can extend the first rotating member 15, one end of the first threaded rod 15 drives the connecting plate 13 to move inside the through slot 12, the moving tube 7 drives the second threaded rod 1 to move the second threaded rod 7, the second threaded rod 7 drives the second rotating rod 34 to move the second rotating rod 3, the second rotating rod 34 and the second rotating rod 34 to move the lower half ball 20, the second rotating rod 34 and the second rotating rod 34 to move the second rotating rod 34, the second rotating rod 34 and the lower half-clamp moving plate 34, the clamp moving plate 34 to move the lower clamp plate 31, the second clamp plate 31, the clamp plate 31 and the clamp plate 34, the clamp plate 31 to move the second clamp plate 31, when the ratchet 38 is no longer engaged with the ratchet 29, the first spring 28 is capable of opening one end of the first and second clamp bodies 23 and 24 under its own resilience, the first and second clamp bodies 23 and 24 close to one end of the insertion tube 1, the slider 26 slides in the sliding slot 25, the slider 26 and the inner tube 10 are pressed down by one end of the second clamp body 24, the inner tube 10 moves in the outer tube 9, the lower hemisphere 3 is moved by the inner tube 10, the upper hemisphere 2 and the lower hemisphere 3 are opened, the rotating handle 34 is rotated in the reverse direction by the user, the rotating handle 34 in the reverse direction moves the first moving plate 35, the second spring 37, the second moving plate 36 and the ratchet 38 by the second threaded rod 33, the ratchet 38 is engaged with the ratchet 29, and the rotating handle 34 is further rotated by the user to compress the second spring 37 by the second moving plate 33 and the first moving plate 35, the user moves the upper hemisphere 2 and the lower hemisphere 3 to both sides of the crystal, and then the user moves one end of the first pincer body 23 and one end of the second pincer body 24 close to each other, the first spring 28 can be compressed by the close end of the first pincer body 23 and the second pincer body 24, at this time, the second pincer body 24 drives the second rotating member 27 and the ratchet 29 to rotate, the rotating ratchet 29 can be abutted against the ratchet 38, the ratchet 38 can be moved to the inside of the connecting groove 32 under the action of the ratchet 29, the second spring 37 can be compressed again through the second moving plate 36, when one side of the ratchet 29 moves past the ratchet 38, at this time, one end of the ratchet 38 can be inserted into one side of the ratchet 29 under the self-resilient force of the second spring 37, so as to avoid the second pincer body 24 from being reset under the resilient force of the first spring 28, the angle of the first clamp body 23 and the angle of the second clamp body 24 are fixed in a one-way mode by a user, the separation of the upper hemisphere 2 and the lower hemisphere 3 after the user loosens the first clamp body 23 and the second clamp body 24 is avoided, so that the use of the user is facilitated, when one ends of the first clamp body 23 and the second clamp body 24 are close to each other, the slide 26 at one end of the insertion tube 1 slides in the sliding groove 25 again, the first clamp body 23 and the second clamp body 24 at one end of the insertion tube 1 are far away from each other, the inner tube 10 moves in the outer tube 9 again, the inner tube 10 drives the lower hemisphere 3 to be close to the upper hemisphere 2, the crystal can be wrapped by the upper hemisphere 2 and the lower hemisphere 3, after the wrapping is finished, the user can crush the crystal, fine fragments of crushed instruments or crushed crystals can be prevented from splashing to damage tissues around the eye in the crushing process, and the safety of the user in crushing is further improved, after the crushing is finished, a user connects one end of the suction pipe 8 with the medical suction pump, crushed crystals on the inner walls of the upper hemisphere 2 and the lower hemisphere 3 can be sucked out through the suction pipe 8, then the user wraps and crushes the crystals again after repeating the steps, when the user needs to take the device out, the user pulls the first contraction rope 39 and the second contraction rope 40 again, so that the ball mouths of the upper hemisphere 2 and the lower hemisphere 3 can be contracted again, the volume of the upper hemisphere 2 and the lower hemisphere 3 is reduced, the device is convenient for the user to take out, the device can wrap the crystals and crush the crystals, the crystals are sucked out after crushing, the whole process does not need to pinch the crystals out, the crystals can be prevented from falling into intraocular tissues such as eyeground retina and the like, repeated friction at a cut is avoided, the difficulty of the operation is further reduced, and the operation time is reduced, reduce the risk of incision and fundus tissue damage and postoperative infection.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. An intraocular implant delivery device, characterized in that it comprises an insertion tube (1), a moving mechanism and an adjusting mechanism, one end of the insertion tube (1) is provided with an upper hemisphere (2), one end of the upper hemisphere (2) is provided with a lower hemisphere (3), the upper hemisphere (2) and the lower hemisphere (3) have memory function, so that the upper hemisphere (2) and the lower hemisphere (3) are restored after the ball mouth is compressed, the inner wall of one end of the insertion tube (1) is uniformly provided with a positioning groove (4), the inside of the positioning groove (4) is slidably connected with a positioning plate (5), one end of the positioning plate (5) is fixedly connected with one side of the upper hemisphere (2), the middle upper end of the inside of the insertion tube (1) is fixedly connected with a fixing member (6), the inside of the insertion tube (1) is provided with a moving tube (7), the middle of the moving tube (7) is slidably connected with the upper hemisphere (2), one end of the moving tube (7) is fixedly connected with the upper hemisphere (2), the inside of the moving tube (7) is provided with a suction tube (8), one end of the moving tube (8) is connected with the middle of the inserting tube (2), the middle of the outer tube (9) is connected with the fixing member (9), the inner part of the outer pipe (9) is connected with an inner pipe (10) in a sliding manner, one end of the inner pipe (10) is fixedly connected with the lower hemisphere (3), one end of the insertion pipe (1) is provided with a first clamp body (23), one end of the first clamp body (23) is fixedly connected with one end of the outer pipe (9), one end of the insertion pipe (1) is provided with a second clamp body (24), one end of the second clamp body (24) is fixedly connected with the inner pipe (10), one end of the second clamp body (24) is provided with a sliding chute (25), the inner part of the sliding chute (25) is connected with a sliding piece (26) in a sliding manner, the bottom end of the sliding piece (26) is fixedly connected with the inner pipe (10), the middle part of the first clamp body (23) is connected with a second rotating piece (27) in a rotating manner, two ends of the second rotating piece (27) are fixedly connected with the middle part of the second clamp body (24), the inner part of the outer pipe (9) is provided with a first contraction rope (39), the first contraction rope (39) penetrates through the upper hemisphere (2) and is positioned at one end of the inner hemisphere (2), and the second contraction rope (40) penetrates through the inner hemisphere (10), the second contraction rope (40) and the inner pipe (10) is positioned at the maximum diameter of the inner pipe (2), one end of the second contraction rope (40) penetrates through the maximum diameter of the lower hemisphere (3).
2. An intraocular delivery device according to claim 1, wherein: one sides of the upper hemisphere (2) and the lower hemisphere (3) close to each other are both in a sawtooth shape, and the sawteeth are meshed with each other.
3. An intraocular delivery device according to claim 1, wherein: the size of constant head tank (4) all with the size looks adaptation of locating plate (5), the internal diameter of outer tube (9) and the external diameter looks adaptation of inner tube (10).
4. An intraocular delivery device according to claim 1, wherein: the moving mechanism comprises a side plate (11), a through groove (12), a connecting plate (13), a threaded sleeve (14), a first threaded rod (15), a transmission bin (16), a first rotating groove (17), a second rotating groove (18), a first rotating rod (19), a first rotating piece (20), a first bevel gear (21) and a second bevel gear (22), wherein the middle upper part of the insertion tube (1) is fixedly connected with the side plate (11), the middle upper part of the insertion tube (1) is provided with the through groove (12), one side of the through groove (12), which penetrates through the fixing piece (6), is connected with the connecting plate (13) in a sliding manner, one end of the connecting plate (13) is fixedly connected with the moving tube (7), the inner wall of one end of the side plate (11) is connected with the threaded sleeve (14) through a bearing, the inside of the threaded sleeve (14) is connected with the first threaded rod (15) through a thread, one end of the first threaded rod (15) is fixedly connected with the connecting plate (13), one end of the side plate (11) is provided with the transmission bin (16), one end of the second rotating groove (18) is provided with the second rotating groove (18), and one end of the second rotating groove (17) is connected with the side plate (11), and the one end of first commentaries on classics groove (17) is connected with transmission storehouse (16), the inside rotation of first commentaries on classics groove (17) is connected with first bull stick (19), and one end thread bush (14) fixed connection of first bull stick (19), the other end fixedly connected with second bevel gear (22) of first bull stick (19), the inside rotation of second bull stick (18) is connected with first commentaries on classics piece (20), the first bevel gear (21) of the one end fixedly connected with of first commentaries on classics piece (20).
5. An intraocular delivery device according to claim 4, wherein: the first bevel gear (21) and the second bevel gear (22) are both positioned inside the transmission chamber (16), and the first bevel gear (21) is meshed with the second bevel gear (22).
6. An intraocular delivery device according to claim 1, wherein: the adjusting mechanism comprises a first spring (28), a ratchet wheel (29), a moving bin (30), a threaded hole (31), a connecting groove (32), a second threaded rod (33), a rotating hand (34), a first moving plate (35), a second moving plate (36), a second spring (37) and a ratchet (38), the middle part of the second clamp body (24) is fixedly connected with the first spring (28), one end of the first spring (28) is fixedly connected with the middle part of the first clamp body (23), the outer surface of the second rotating piece (27) is fixedly connected with the ratchet wheel (29), the middle part of the first clamp body (23) is provided with the moving bin (30), the inner wall of one end of the moving bin (30) is provided with the threaded hole (31), the inner wall of the other end of the moving bin (30) is provided with the connecting groove (32), the connecting groove (32) is connected with the inner part of the first clamp body (23), the inner part of the threaded hole (31) is connected with the second threaded rod (33) through threads, one end of the second threaded rod (33) is fixedly connected with the rotating hand (34), the other end of the second threaded rod (33) is connected with the moving bin (35), and the moving plate (30) is connected with the first moving bin (35) in a sliding manner, one side of the second moving plate (36) is uniformly and fixedly connected with a second spring (37), one end of the second spring (37) is fixedly connected with the first moving plate (35), the connecting groove (32) is internally and slidably connected with a ratchet (38), one end of the ratchet (38) is fixedly connected with the second moving plate (36), and one end of the ratchet (38) is meshed with the ratchet (29).
7. An intraocular delivery device according to claim 6, wherein: the size of the first moving plate (35) is the same as that of the second moving plate (36), and the size of the moving cabin (30) is matched with that of the first moving plate (35).
8. An intraocular delivery device according to claim 6, wherein: the size of the connecting groove (32) is matched with that of the ratchet (38).
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| RU2364383C1 (en) * | 2008-04-10 | 2009-08-20 | Государственное образовательное учреждение дополнительного профессионального образования Российская медицинская академия последипломного образования Федерального агентства по здравоохранению и социальному развитию (ГОУ ДПО РМАПО Росздрава) | Technique for intraocular foreign body removal from posterior eye through anterior tract |
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| US7704246B2 (en) * | 2004-04-30 | 2010-04-27 | Connor Christopher S | Shielded intraocular probe for improved illumination or therapeutic application of light |
| US20160256140A1 (en) * | 2015-03-03 | 2016-09-08 | United States Endoscopy Group, Inc. | Microforceps |
| US10932900B2 (en) * | 2019-04-26 | 2021-03-02 | The Eye Hospital Of Wenzhou Medical University | Method of sutureless intrascleral haptic-hook lens implantation |
| CN213190525U (en) * | 2020-04-14 | 2021-05-14 | 上海市第一人民医院 | A mesh basket device for removing intraocular foreign bodies |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2364383C1 (en) * | 2008-04-10 | 2009-08-20 | Государственное образовательное учреждение дополнительного профессионального образования Российская медицинская академия последипломного образования Федерального агентства по здравоохранению и социальному развитию (ГОУ ДПО РМАПО Росздрава) | Technique for intraocular foreign body removal from posterior eye through anterior tract |
| CN205659047U (en) * | 2016-04-21 | 2016-10-26 | 吴雨玻 | Novel ophthalmic surgery cuts |
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