CN108272535B - Intraocular lens taking and placing device for ophthalmology - Google Patents
Intraocular lens taking and placing device for ophthalmology Download PDFInfo
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- CN108272535B CN108272535B CN201810242652.4A CN201810242652A CN108272535B CN 108272535 B CN108272535 B CN 108272535B CN 201810242652 A CN201810242652 A CN 201810242652A CN 108272535 B CN108272535 B CN 108272535B
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- intraocular lens
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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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/148—Implantation instruments specially adapted therefor
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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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1662—Instruments for inserting intraocular lenses into the eye
- A61F2/167—Instruments for inserting intraocular lenses into the eye with pushable plungers
Abstract
The invention relates to an intraocular lens taking and placing device for ophthalmology, which is characterized in that: comprises a pick-and-place shell, an adsorption device, a switching device and a blowing device; the taking and placing shell comprises a shell body, a middle partition plate, an upper cavity, a lower cavity and a lower air pipe; the adsorption device comprises a right limiting plate, a torsion disc, a transmission inserted bar, a right screw, a left screw and a driven piston; the switching device comprises a left limiting plate, a driving nut and a driven screw rod; the blowing device comprises a sleeving ring and an air blowing pipe. The ophthalmological intraocular lens taking and placing device is reasonable in structure and simple to operate, and can be operated by one hand; different working modes can be switched by the switching device; no matter which of two kinds of mode, it is more accurate for the simple straw of prior art, avoid putting the trachea atmospheric pressure change under with intraocular lens inhalation under in the trachea, cause the harm.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an intraocular lens taking and placing device for ophthalmology.
Background
The artificial lens is a special lens made of artificial synthetic materials, and the components of the artificial lens comprise silica gel, polymethyl methacrylate, hydrogel and the like. The artificial lens has the shape similar to the lens of human eyes, and has the characteristics of light weight, high optical performance, no antigenicity, inflammation, carcinogenicity, biodegradability and the like. After cataract operation, the turbid crystalline lens is removed, and the artificial crystalline lens is implanted into the eye to replace the original crystalline lens, so that the external objects are focused and imaged on the retina, and the surrounding scenery can be seen clearly.
The intraocular lens is usually held by tweezers and taken out of the storage vessel, however, since the sharp tweezers easily damage the intraocular lens, and a method for adsorbing the intraocular lens by using a suction tube is also available, but the degree of adsorption cannot be controlled by a simple suction tube, so that an ophthalmic intraocular lens taking and placing device and a method for taking and placing the ophthalmic intraocular lens in the vessel need to be designed.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides an ophthalmological intraocular lens taking and placing device which is reasonable in structure, simple to operate and capable of being operated by one hand; different working modes can be switched by the switching device; no matter which of two kinds of mode, it is more accurate for the simple straw of prior art, avoid putting the trachea atmospheric pressure change under with intraocular lens inhalation under in the trachea, cause the harm.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an intraocular lens taking and placing device for ophthalmology, characterized in that: comprises a pick-and-place shell, an adsorption device, a switching device and a blowing device;
the pick-and-place housing comprises:
the shell body is a hollow rectangular body;
the middle partition board is arranged in the middle of the shell body along the left and right directions, and the left end and the right end of the middle partition board are respectively provided with a middle transverse hole;
the upper cavity is positioned above the middle partition plate, an upper left hole is formed in the middle of the left end face of the upper cavity, a limiting lug is arranged on the inner wall of the upper left hole, an upper right hole is formed in the middle of the right end face of the upper cavity, and an upper cavity ring is arranged on each of the left side and the right side of the interior of the upper cavity;
the lower cavity is positioned below the middle partition plate, the left side and the right side of the lower cavity are respectively provided with a lower side hole, and the rear end face of the lower cavity is provided with a lower air hole;
the lower air pipe is arranged on the lower end face of the shell body and is communicated with the lower air hole, the lower air pipe is gradually narrowed from top to bottom, a sealing soft ring made of soft materials is arranged on the lower edge of the lower air pipe, and a small air blowing hole is formed in the side face of the lower air pipe;
the adsorption device includes:
the right limiting plate is fixed on the right side of the shell body through a right connecting plate, and a right limiting hole is formed in the position, corresponding to the upper right hole 13b, of the right limiting plate;
the torsional disc is rotatably arranged between the shell body and the right limiting plate, and a regular-hexagon torsional insertion hole is formed in the center of the torsional disc;
the transmission inserted bar is rotatably arranged in the right limiting hole and the upper right hole, the transmission inserted bar is in transmission connection with the torsion disc through a torsion inserting hole, the left end of the transmission inserted bar is inserted into the upper cavity and is expanded to form a transmission plug with a regular hexagonal section, and a tapered groove which is narrow at the left and wide at the right is formed in the left end surface of the transmission plug;
the right screw is provided with a right jack with a regular hexagonal cross section, which is in transmission fit with the transmission inserted bar, along the axial direction, and the outer wall of the right screw is also provided with a circular groove in transmission connection with an upper cavity ring on the right side;
the left screw is provided with a left jack with a regular hexagonal section, which is in transmission fit with the transmission plug, along the axial direction, the left jack is used for accommodating the transmission inserted bar to rotate in the left screw, and the outer wall of the left screw is also provided with a circular groove in transmission connection with an upper cavity ring on the left side;
the driven pistons are provided with a pair, each driven piston comprises a driven solenoid arranged in the upper cavity, a connecting longitudinal rod arranged at the lower end of the driven solenoid and inserted into the lower cavity after penetrating through the corresponding middle transverse hole, a connecting transverse rod arranged below the connecting longitudinal rod and extending to the middle part of the shell body, and a piston body arranged at the stop end of the connecting transverse rod and tightly attached to the lower cavity;
the driven screw pipe positioned on the right side is in transmission connection with the right-arranged screw rod, and the driven screw pipe positioned on the left side is in threaded connection with the left-arranged screw rod;
the switching device includes:
the left limiting plate is arranged on the left side of the shell body through a left connecting plate, and a left limiting hole is further formed in the position, corresponding to the upper left hole, of the left limiting plate;
the driving nut is rotatably arranged between the shell body and the left limit plate;
the driven screw is inserted into the upper cavity after passing through the left limiting hole and the upper left hole, the driven screw is in threaded connection with the driving nut, a limiting side hole matched with the limiting lug is formed in the side face of the driven screw along the axial direction of the driven screw, and a conical chuck which can be rotatably arranged in the conical groove is arranged at the right end of the driven screw;
the blow-off device includes:
the sleeving circular ring is tightly sleeved on the lower air pipe, and a large air blowing hole is formed in the sleeving circular ring at the position corresponding to the small air blowing hole;
the air blowing pipe comprises a sleeve transverse section, a sleeve longitudinal section and a plug, wherein the sleeve transverse section is arranged on the side face of the sleeved ring and communicated with the large air blowing hole, the sleeve longitudinal section is communicated with the upper portion of the end of the sleeve transverse section, and the plug is arranged above the sleeve longitudinal section.
Furthermore, when the connecting longitudinal rod slides to one end far away from the center of the shell body along the middle transverse hole, the corresponding piston body is still positioned on one side, close to the center of the shell body, of the middle transverse hole.
Furthermore, the right end of the transmission plug is gradually narrowed until the right end of the transmission plug corresponds to the section of the transmission inserted bar.
Furthermore, a disinfection filter screen is arranged in the air blowing pipe, and the disinfection filter screen at least comprises non-woven fabrics and activated carbon cloth.
The invention has the beneficial effects that:
the ophthalmological intraocular lens taking and placing device is reasonable in structure and simple to operate, and can be operated by one hand, and the intraocular lens can be adsorbed or released by holding the taking and placing device by hand and then rotating the twisting disc through the lower trachea.
Secondly, the ophthalmic artificial lens taking and placing device can switch different working modes through a switching device:
the driving nut is rotated to drive the driven screw rod and the conical clamping head to move along the left-right direction, so that the driving plug and the driving insertion rod are driven to move and adjusted, the driving plug is in a transmission connection state with the left-arranged screw rod, and then the driving plug is adjusted to rotate whether the driven piston located on the left side advances or not during twisting of the disc, and finally the change rate of air pressure in the lower air pipe is adjusted at the same speed during rotation of the disc, so that the working mode switching of quick taking and placing or safe taking and placing is realized.
Thirdly, the working modes of quick taking and safe taking are compared between the two working modes, and whichever of the two working modes is more precise compared with a simple straw in the prior art, the torsion disc is rotated for a circle, and the moving distance of the driven piston is the pitch of the corresponding driven screw tube, so that the air pressure change in the lower air tube is precisely adjusted, and the condition that the artificial lens is sucked into the lower air tube by too fast air pressure change of the lower air tube to cause damage is avoided.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a sectional view of one embodiment of the taking and placing device.
Fig. 2 is a sectional view of one embodiment of the pick-and-place device.
Fig. 3 is a sectional view of one embodiment of the pick-and-place device.
Fig. 4 is a sectional view of one embodiment of the pick-and-place device.
Fig. 5 is a left side view of one embodiment of the pick-and-place device.
FIG. 6 is a cross-sectional view of one embodiment of section A-A of FIG. 1.
Fig. 7 is an enlarged schematic view of part B of fig. 1.
In the figure:
1. the method comprises the following steps of taking and placing a shell, 11. a shell body, 12. a middle clapboard, 12a. a middle transverse hole, 13. an upper cavity, 13a. an upper left hole, 13b. an upper right hole, 13c. an upper circular ring, 14. a lower cavity, 14a. a lower side hole, 14b. a lower air hole, 15. a lower air pipe, 15a. a sealing soft ring and 15b. a small air blowing hole;
2. the rotary type piston comprises an adsorption device, 21. a right limiting plate, 21a. a right connecting plate, 21b. a right limiting hole, 22. a torsion disc, 22a. a torsion jack, 23. a transmission inserted rod, 23a. a transmission plug, 23b. a conical groove, 24. a right screw, 24a. a right jack, 25. a left screw, 25a. a left jack, 26. a driven piston, 26a. a driven screw pipe, 26b. a connecting longitudinal rod, 26c. a connecting transverse rod and 26d. a piston body;
3. the switching device comprises a switching device, 31, a left limit plate, 31a, a left connecting plate, 31b, a left limit hole, 32, a driving nut, 33, a driven screw, 33a, a limit side hole and 33b, a conical chuck;
4. the blowing device 41 is sleeved with a ring 41a, a large air blowing hole 42, an air blowing pipe 42a and a plug 42a.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
An intraocular lens taking and placing device for ophthalmology, characterized in that: comprises a pick-and-place shell 1, an adsorption device 2, a switching device 3 and a blowing-off device 4;
the taking and placing housing 1 includes:
the shell body 11 is a hollow rectangular body;
the middle partition plate 12 is arranged in the middle of the shell body 11 along the left-right direction, and the left end and the right end of the middle partition plate 12 are respectively provided with a middle transverse hole 12 a;
the upper cavity 13 is positioned above the middle partition plate 12, an upper left hole 13a is formed in the middle of the left end face of the upper cavity 13, a limit bump is arranged on the inner wall of the upper left hole 13a, an upper right hole 13b is formed in the middle of the right end face of the upper cavity 13, and an upper cavity ring 13c is respectively arranged on the left side and the right side inside the upper cavity 13;
the lower cavity 14 is positioned below the middle partition plate 12, the left side and the right side of the lower cavity 14 are respectively provided with a lower side hole 14a, and the rear end face of the lower cavity 14 is provided with a lower air hole 14 b;
the lower air pipe 15 is arranged on the lower end face of the shell body 11 and is communicated with the lower air hole 14b, the lower air pipe 15 gradually narrows from top to bottom, a sealing soft ring 15a made of soft materials is arranged on the lower edge of the lower air pipe 15, and a small air blowing hole 15b is formed in the side face of the lower air pipe 15;
the adsorption device 2 includes:
the right limiting plate 21 is fixed on the right side of the shell body 11 through a right connecting plate 21a, and a right limiting hole 21b is further formed in the position, corresponding to the upper right hole 13b, of the right limiting plate 21;
the twisting disc 22 is rotatably arranged between the shell body 11 and the right limiting plate 21, and a regular hexagonal twisting insertion hole 22a is formed in the center of the twisting disc 22;
the transmission inserted bar 23 with a regular hexagonal section is rotatably arranged in the right limiting hole 21b and the upper right hole 13b, the transmission inserted bar 23 is in transmission connection with the torsion disc 22 through a torsion insertion hole 22a, the left end of the transmission inserted bar 23 is inserted into the upper cavity 13 and is expanded to form a transmission plug 23a with a regular hexagonal section, and the left end surface of the transmission plug 23a is provided with a tapered groove 23b which is narrow at the left and wide at the right;
the right screw 24 is provided with a right insertion hole 24a with a regular hexagonal cross section which is matched with the transmission insertion rod 23 in a transmission way along the axial direction, and the outer wall of the right screw 24 is also provided with a circular groove which is in transmission connection with the upper cavity circular ring 13c on the right side;
the left screw 25 is axially provided with a left jack 25a with a regular hexagonal cross section, the left jack 25a is in transmission fit with the transmission plug 23a, the transmission plug 23 is accommodated in the left jack 25a to rotate inside the left jack, and the outer wall of the left screw 25 is also provided with a circular groove in transmission connection with the upper cavity ring 13c on the left side;
a pair of driven pistons 26, each driven piston 26 comprises a driven screw tube 26a arranged in the upper cavity 13, a connecting longitudinal rod 26b arranged at the lower end of the driven screw tube 26a and inserted into the lower cavity 14 after passing through the corresponding middle transverse hole 12a, a connecting transverse rod 26c arranged below the connecting longitudinal rod 26b and extending to the middle of the shell body 11, and a piston body 26d arranged at the end of the connecting transverse rod 26c and tightly attached to the lower cavity 14;
the driven screw tube 26a positioned on the right side is in transmission connection with the right screw 24, and the driven screw tube 26a positioned on the left side is in threaded connection with the left screw 25;
the switching device 3 includes:
the left limiting plate 31 is arranged on the left side of the shell body 11 through a left connecting plate 31a, and a left limiting hole 31b is further formed in the left limiting plate 31 at the position corresponding to the upper left hole 13 a;
the driving nut 32 is rotatably arranged between the shell body 11 and the left limit plate 31;
the driven screw 33 is inserted into the upper cavity 13 after passing through the left limiting hole 31b and the upper left hole 13a, the driven screw 33 is in threaded connection with the driving nut 32, a limiting side hole 33a matched with the limiting bump is formed in the side face of the driven screw 33 along the axial direction of the driven screw, and a conical clamping head 33b rotatably arranged in the conical groove 23b is arranged at the right end of the driven screw 33;
the blow-off device 4 comprises:
a sleeving ring 41 tightly sleeved on the lower air pipe 15, wherein a large air blowing hole 41a is formed at the position of the sleeving ring 41 corresponding to the small air blowing hole 15 b;
the blowing air pipe 42 comprises a sleeve transverse section which is arranged on the side surface of the sleeving circular ring 41 and communicated with the large blowing hole 41a, a sleeve longitudinal section which is communicated and arranged above the end of the sleeve transverse section, and a plug 42a which is arranged above the sleeve longitudinal section.
Further, when the connecting longitudinal rod 26b slides along the middle transverse hole 12a to an end away from the center of the housing body 11, the corresponding piston body 26d is still located at a side of the middle transverse hole 12a close to the center of the housing body 11.
Further, the right end of the transmission plug 23a is gradually narrowed to correspond to the section of the transmission inserted rod 23.
Further, a disinfection filter screen is arranged in the blowing air pipe 42, and the disinfection filter screen at least comprises non-woven fabrics and activated carbon fabrics.
The use method of the taking and placing device comprises the following steps:
step 1, rapidly taking and placing an intraocular lens 5:
step 1.1, Rapid adsorption of intraocular lens 5
The blowing air pipe 42 is held by hand, the adsorption device is moved to the position above the artificial lens 5, and the sealing soft ring 15a is tightly attached to the upper end face of the artificial lens 5;
under a normal state, the transmission plug 23a is inserted into the left insertion hole 24a of the left screw 24;
the twisting disc 22 is dialed by fingers to drive the transmission inserted link 23 and the transmission plug 23a to rotate, the driven screw 33 is restrained by the limiting convex block and does not rotate along with the transmission plug 23a, the transmission inserted link 23 drives the right screw 24 to rotate, and the transmission plug 23a drives the left screw 25 to rotate;
the right screw 24 acts on the driven screw tube 26a on the right side to drive the corresponding driven piston 26 to move rightwards, the left screw 25 acts on the driven screw tube 26a on the left side to drive the corresponding driven piston 26 to move leftwards, the air pressure of the part, located between the two piston bodies 26d, of the lower cavity 14, the air pressure in the blowing device 4 and the air pressure in the lower air tube 15 are rapidly reduced, and the intraocular lens 5 is adsorbed and fixed;
step 1.2, rapidly releasing the intraocular lens 5:
the twisting disk 22 is dialed by fingers, and the rotating direction of the twisting disk 22 is opposite to the rotating direction of the twisting disk 22 in the step 1.1;
the torsion disc 22 drives the transmission inserted link 23 and the transmission plug 23a to rotate, the driven screw 33 is restrained by the limiting projection and does not rotate along with the transmission plug 23a, the transmission inserted link 23 drives the right screw 24 to rotate, and the transmission plug 23a drives the left screw 25 to rotate;
the right screw 24 acts on the driven screw tube 26a on the right side to drive the corresponding driven piston 26 to move leftwards, the left screw 25 acts on the driven screw tube 26a on the left side to drive the corresponding driven piston 26 to move rightwards, the air pressure of the part, located between the two piston bodies 26d, of the lower cavity 14, the air pressure in the blowing-off device 4 and the air pressure in the lower air tube 15 are quickly recovered to the atmospheric pressure, and the intraocular lens 5 falls down;
taking the artificial lens 5 out of the container vessel or putting the artificial lens 5 into the container vessel from the outside by quickly adsorbing, adsorbing and quickly releasing the artificial lens 5;
the driving nut 32 is rotated by fingers, so that the driven screw 33 is driven to move leftwards, and the transmission inserted bar 23 and the transmission plug 23a are pulled to move leftwards through the conical clamping head 33b until the transmission plug 23a is completely separated from the left-arranged jack 25 a;
step 3.1, safely adsorbing the intraocular lens 5:
the blowing air pipe 42 is held by hand, the adsorption device is moved to the position above the artificial lens 5, and the sealing soft ring 15a is tightly attached to the upper end face of the artificial lens 5;
the twisting disc 22 is dialed by fingers to drive the transmission inserted link 23 and the transmission plug 23a to rotate, the driven screw 33 is restrained by the limiting convex block and does not rotate along with the transmission plug 23a, the transmission inserted link 23 drives the right screw 24 to rotate, the transmission plug 23a is separated from the contact with the left screw 25, and therefore the left screw 25 cannot rotate;
the right screw 24 acts on the driven screw tube 26a on the right side to drive the driven piston 26 on the right side to move rightwards, the air pressure of the part, between the two piston bodies 26d, of the lower cavity 14, the air pressure in the blowing device 4 and the air pressure in the lower air tube 15 are slowly reduced, and the artificial lens 5 is adsorbed and fixed;
step 3.2, releasing the intraocular lens 5 safely:
dialing the torsion disc 22 with a finger in a direction opposite to the direction of rotation of the torsion disc 22 in step 3.1;
the torsion disc 22 drives the transmission inserted link 23 and the transmission plug 23a to rotate reversely, the driven screw 33 is restrained by the limiting projection and does not rotate along with the transmission plug 23a, the transmission inserted link 23 drives the right screw 24 to rotate, the transmission plug 23a is separated from contact with the left screw 25, and therefore the left screw 25 cannot rotate;
the right screw 24 acts on the right driven screw tube 26a to drive the corresponding driven piston 26 to move leftwards, the air pressure of the part of the lower cavity 14 between the two piston bodies 26d, the air pressure in the blowing device 4 and the air pressure in the lower air tube 15 are slowly restored to the atmospheric pressure, and the intraocular lens 5 falls down;
the intraocular lens 5 is taken out from the housing vessel or the intraocular lens 5 is put into the housing vessel from the outside by the safety adsorption and the safety release of the intraocular lens 5.
Further, in step 1.2, when the air pressure in the lower air tube 15 is rapidly restored to the atmospheric pressure but the intraocular lens 5 cannot fall down, the plug 24a is pulled out and air is blown into the air blowing tube 42, and the intraocular lens 5 is blown down after the air passes through the large air blowing hole 41a, the small air blowing hole 15b, the lower air tube 15 and the sealing soft ring 15a.
Further, in step 3.2, when the air pressure in the lower air tube 15 is slowly restored to the atmospheric pressure but the intraocular lens 5 cannot fall down, the plug 24a is pulled out and air is blown into the air blowing tube 42, and the intraocular lens 5 is blown down after the air passes through the large air blowing hole 41a, the small air blowing hole 15b, the lower air tube 15 and the sealing soft ring 15a.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. An intraocular lens taking and placing device for ophthalmology, characterized in that: comprises a pick-and-place shell (1), an adsorption device (2), a switching device (3) and a blowing-off device (4);
the pick-and-place housing (1) comprises:
the shell body (11) is a hollow rectangular body;
the middle partition plate (12) is arranged in the middle of the shell body (11) along the left and right directions, and the left end and the right end of the middle partition plate (12) are respectively provided with a middle transverse hole (12 a);
the upper cavity (13) is positioned above the middle partition plate (12), an upper left hole (13 a) is formed in the middle of the left end face of the upper cavity (13), a limiting bump is arranged on the inner wall of the upper left hole (13 a), an upper right hole (13 b) is formed in the middle of the right end face of the upper cavity (13), and an upper cavity circular ring (13 c) is respectively arranged on the left side and the right side inside the upper cavity (13);
the lower cavity (14) is positioned below the middle partition plate (12), the left side and the right side of the lower cavity (14) are respectively provided with a lower side hole (14 a), and the rear end surface of the lower cavity (14) is provided with a lower air hole (14 b);
the lower air pipe (15) is arranged on the lower end face of the shell body (11) and is communicated with the lower air hole (14 b), the lower air pipe (15) is gradually narrowed from top to bottom, a sealing soft ring (15 a) made of soft materials is arranged on the lower edge of the lower air pipe (15), and a small air blowing hole (15 b) is formed in the side face of the lower air pipe (15);
the adsorption device (2) comprises:
the right limiting plate (21) is fixed on the right side of the shell body (11) through a right connecting plate (21 a), and a right limiting hole (21 b) is further formed in the position, corresponding to the upper right hole (13 b), of the right limiting plate (21);
the torsional disc (22) is rotatably arranged between the shell body (11) and the right limiting plate (21), and a regular-hexagon torsional insertion hole (22 a) is formed in the center of the torsional disc (22);
the transmission inserted bar (23) is provided with a regular hexagonal section and is rotatably arranged in the right limiting hole (21 b) and the upper right hole (13 b), the transmission inserted bar (23) is in transmission connection with the torsion disc (22) through a torsion inserting hole (22 a), the left end of the transmission inserted bar (23) is inserted into the upper cavity (13) and is expanded to form a transmission plug (23 a) with a regular hexagonal section, and the left end surface of the transmission plug (23 a) is provided with a tapered groove (23 b) which is narrow at the left and wide at the right;
the right screw (24) is axially provided with a right insertion hole (24 a) which is matched with the transmission inserted rod (23) in a transmission way and has a regular hexagonal section, and the outer wall of the right screw (24) is also provided with a circular groove in transmission connection with an upper cavity circular ring (13 c) positioned on the right side;
the left screw (25) is axially formed with a left insertion hole (25 a) with a regular hexagonal cross section, the left insertion hole (25 a) is in transmission fit with the transmission plug (23 a), the transmission insertion rod (23) is accommodated in the left insertion hole (25 a) to rotate in the left insertion hole, and the outer wall of the left screw (25) is also provided with a circular groove in transmission connection with an upper cavity circular ring (13 c) on the left side;
the driven pistons (26) are provided with a pair, each driven piston (26) comprises a driven screw pipe (26 a) arranged in the upper cavity (13), a connecting longitudinal rod (26 b) arranged at the lower end of the driven screw pipe (26 a) and inserted into the lower cavity (14) after penetrating through the corresponding middle transverse hole (12 a), a connecting transverse rod (26 c) arranged below the connecting longitudinal rod (26 b) and extending to the middle of the shell body (11), and a piston body (26 d) arranged at the stop end of the connecting transverse rod (26 c) and tightly attached to the lower cavity (14);
the driven screw pipe (26 a) positioned on the right side is in transmission connection with the right screw rod (24), and the driven screw pipe (26 a) positioned on the left side is in threaded connection with the left screw rod (25);
the switching device (3) comprises:
the left limiting plate (31) is arranged on the left side of the shell body (11) through a left connecting plate (31 a), and a left limiting hole (31 b) is further formed in the position, corresponding to the upper left hole (13 a), of the left limiting plate (31);
the driving nut (32) is rotatably arranged between the shell body (11) and the left limiting plate (31);
the driven screw (33) is inserted into the upper cavity (13) through the left limiting hole (31 b) and the upper left hole (13 a), the driven screw (33) is in threaded connection with the driving nut (32), a limiting side hole (33 a) matched with the limiting bump is formed in the side face of the driven screw (33) along the axial direction of the side face, and a conical clamping head (33 b) which can be rotatably arranged in the conical groove (23 b) is arranged at the right end of the driven screw (33);
the blow-off device (4) comprises:
the sleeving circular ring (41) is tightly sleeved on the lower air pipe (15), and a large air blowing hole (41 a) is formed in the sleeving circular ring (41) corresponding to the small air blowing hole (15 b);
the blowing air pipe (42) comprises a sleeve transverse section, a sleeve longitudinal section and a plug (42 a), wherein the sleeve transverse section is arranged on the side face of the sleeving circular ring (41) and communicated with the large blowing hole (41 a), the sleeve longitudinal section is communicated with the top of the stop end of the sleeve transverse section, and the plug (42 a) is arranged above the sleeve longitudinal section.
2. The ophthalmic intraocular lens extraction device of claim 1, wherein: when the connecting longitudinal rod (26 b) slides to the end far away from the center of the shell body (11) along the middle transverse hole (12 a), the corresponding piston body (26 d) is still positioned on one side of the middle transverse hole (12 a) close to the center of the shell body (11).
3. An ophthalmic intraocular lens extraction device according to claim 2, wherein: the right end of the transmission plug (23 a) is gradually narrowed until the right end corresponds to the section of the transmission inserted bar (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810242652.4A CN108272535B (en) | 2018-03-23 | 2018-03-23 | Intraocular lens taking and placing device for ophthalmology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810242652.4A CN108272535B (en) | 2018-03-23 | 2018-03-23 | Intraocular lens taking and placing device for ophthalmology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108272535A CN108272535A (en) | 2018-07-13 |
| CN108272535B true CN108272535B (en) | 2020-05-15 |
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| CN105402102A (en) * | 2015-12-11 | 2016-03-16 | 珠海格力电器股份有限公司 | Single-cylinder reciprocating piston type compressor |
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| WO2017047714A1 (en) * | 2015-09-16 | 2017-03-23 | Hoya株式会社 | Intraocular lens insertion tool |
| CN107605852A (en) * | 2017-10-31 | 2018-01-19 | 舟山梅朋水处理有限公司 | Fluid pressure pick-up device and equipment |
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| CN2771889Y (en) * | 2005-08-25 | 2006-04-12 | 方宽荣 | Portable contact lens taking-wearing device |
| JP2007222309A (en) * | 2006-02-22 | 2007-09-06 | Hoya Corp | Intraocular lens insertion instrument |
| CN202449242U (en) * | 2011-06-08 | 2012-09-26 | 大阔科技股份有限公司 | Round diaphragm extraction head |
| CN202776723U (en) * | 2012-09-20 | 2013-03-13 | 张凤 | Negative pressure ophthalmological crystal embedding device |
| WO2017047714A1 (en) * | 2015-09-16 | 2017-03-23 | Hoya株式会社 | Intraocular lens insertion tool |
| CN105402102A (en) * | 2015-12-11 | 2016-03-16 | 珠海格力电器股份有限公司 | Single-cylinder reciprocating piston type compressor |
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| CN108272535A (en) | 2018-07-13 |
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