CN218852942U - Cataract lens nucleus piece supporter - Google Patents
Cataract lens nucleus piece supporter Download PDFInfo
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- CN218852942U CN218852942U CN202320170375.7U CN202320170375U CN218852942U CN 218852942 U CN218852942 U CN 218852942U CN 202320170375 U CN202320170375 U CN 202320170375U CN 218852942 U CN218852942 U CN 218852942U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The utility model discloses a cataract crystalline lens nucleus piece supporting device, which comprises a nucleus piece supporting part for supporting a crystalline lens nucleus piece, wherein the rear end of the nucleus piece supporting part is provided with an operating handle part, the nucleus piece supporting part comprises a supporting sleeve, a supporting ring connecting rod penetrates through the supporting sleeve in a sliding way, the front end of the supporting ring connecting rod is connected with a deformable supporting ring which can be retracted and extends out of the front end of the supporting sleeve, and the ring body of the deformable supporting ring is coated with a nucleus piece supporting surface; the operating handle part comprises a handle sleeve, the front end of the handle sleeve is connected with the rear end of the supporting sleeve, a sliding push rod is horizontally and slidably mounted in the handle sleeve, the front end of the sliding push rod is connected with the rear end of the supporting ring connecting rod, and the rear end of the sliding push rod is connected with a push rod driving device which drives the sliding push rod and the supporting ring connecting rod to horizontally slide. This device supports and the bearing through the face of nuclear piece bearing to the crystalline lens for the capsular bag is damaged after the prevention, prevents that the nuclear piece from falling, and the safety in utilization is better, is applicable to the young expert that the experience is less and carries out the supplementary use of performing the operation.
Description
Technical Field
The utility model relates to an ophthalmic cataract surgical instrument, in particular to a cataract crystalline lens nucleus block supporting device.
Background
At present, when an ophthalmic cataract operation is carried out, the situation that a posterior capsule membrane is broken occasionally in the operation, and a cataract crystalline lens nuclear block falls into a vitreous cavity needs to be taken out in time to finish the operation. However, the operation of the ophthalmic cataract surgery is fine, the operation is performed under a microscope, the operation space is narrow, after the cataract nucleus block falls into the vitreous cavity, an operator needs to use a 23G puncture knife to make two puncture openings at the target sclera, a vitrectomy head and an optical fiber are placed to search the cataract nucleus block, the cataract nucleus block is repeatedly grabbed for many times, the vitreous cutting head slowly sucks the cataract nucleus block to complete the operation, meanwhile, fundus tissues are easily accidentally injured, complications such as hemorrhage, retinal detachment and the like are caused, the operation efficiency is reduced, the operation difficulty is increased, the tissue damage is large, and the pain of a patient is increased. When cataract surgery is performed, an operating doctor is required to prevent cataract nucleus blocks from falling into a vitreous cavity as much as possible or reduce the quantity of cataract nucleus blocks falling into the vitreous cavity as much as possible, and experts with less experience often cannot completely prevent or reduce the occurrence of the condition, so that the difficulty of the operation is increased.
The authorized publication number CN102784030B in the prior art discloses a cataract operation lens nucleus supporter, which comprises an injection handle, an injection tube tail cover, an injection tube, an injection rod, a spring, an injection tube cap, an injection needle and three injection claws, wherein the injection rod can enable the three injection claws to retract and extend out of the injection needle, and the three injection claws are stretched out in a fan shape and placed below a lens nucleus block to support the nucleus block to be fallen so as to reduce the falling quantity of the nucleus block; and the three-jaw structure is adopted, the tip exists, the intraocular tissue is soft, the condition of scratching the intraocular tissue can occur, and the use is unsafe.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a cataract crystalline lens nucleus block supporting device which is safe in use, can support and bear the nucleus block and can avoid the nucleus block from falling.
In order to solve the technical problem, the technical scheme of the utility model is that: the cataract crystalline lens nucleus piece support comprises a nucleus piece supporting part for supporting a crystalline lens nucleus piece, the rear end of the nucleus piece supporting part is provided with an operating handle part, the nucleus piece supporting part comprises a supporting sleeve, a supporting ring connecting rod penetrates through the supporting sleeve in a sliding manner, the front end of the supporting ring connecting rod is connected with a deformation supporting ring which can retract and stretch out of the front end of the supporting sleeve, and a nucleus piece supporting surface is coated on a ring body of the deformation supporting ring; the operation handle portion includes the handle sleeve pipe, the handle sleeve pipe the front end with support sleeve pipe's rear end is connected, horizontal slidable mounting has sliding push rod in the handle sleeve pipe, sliding push rod's front end with prop the rear end of ring connecting rod and connect, sliding push rod's rear end is connected with the drive sliding push rod prop ring connecting rod horizontal slip's push rod drive arrangement.
According to a preferable technical scheme, when the deformation supporting ring is in an extending state, the deformation supporting ring and the bearing surface of the nuclear block are both unfolded to be in a similar circular shape corresponding to the crystalline lens, and an obtuse angle is formed between the deformation supporting ring and the handle part of the operating handle; when the deformation support ring is in a retraction state, the deformation support ring and the bearing surface of the core block are folded in the front end of the support sleeve.
Preferably, a retraction guide inclined surface is arranged on one side of the deformation supporting ring close to the supporting ring connecting rod.
As a preferable technical scheme, a conical accommodating cavity for accommodating the deformation supporting ring and the nuclear block bearing surface is arranged in the front end of the supporting sleeve.
Preferably, the support sleeve and the support ring connecting rod are both flat tubes.
According to a preferable technical scheme, the deformation support ring is a steel wire ring, and the nuclear block bearing surface is a collagen bearing surface.
According to the preferable technical scheme, the push rod driving device comprises a rotary push rod installed in the handle sleeve in a threaded mode, the rear end of the rotary push rod, extending out of the handle sleeve, is connected with a rotary operating handle, a push rod groove is formed in the front end of the rotary push rod, and a push rod protruding block installed in the push rod groove in a limiting mode is arranged at the rear end of the sliding push rod.
As an optimized technical scheme, a sleeve limiting slide way arranged along the axis direction is arranged at the front part of the handle sleeve, and a push rod slide block horizontally sliding along the sleeve limiting slide way is arranged on the periphery of the sliding push rod.
As an optimized technical scheme, a sleeve clamping groove is formed in the periphery of the front end of the handle sleeve, and a sleeve clamping claw matched with the sleeve clamping groove in a clamping mode is arranged at the rear end of the supporting sleeve.
As an optimized technical scheme, a push rod clamping groove is formed in the front end of the sliding push rod, and a connecting rod clamping claw matched with the push rod clamping groove in a clamping mode is arranged at the rear end of the supporting ring connecting rod.
By adopting the technical scheme, the cataract crystalline lens nucleus block support comprises a nucleus block supporting part for supporting the crystalline lens nucleus block, the rear end of the nucleus block supporting part is provided with an operating handle part, the nucleus block supporting part comprises a supporting sleeve, a supporting ring connecting rod penetrates through the supporting sleeve in a sliding manner, the front end of the supporting ring connecting rod is connected with a deformable supporting ring which can retract and stretch out of the front end of the supporting sleeve, and a nucleus block supporting surface is coated on a ring body of the deformable supporting ring; the operating handle part comprises a handle sleeve, the front end of the handle sleeve is connected with the rear end of the support sleeve, a sliding push rod is horizontally and slidably mounted in the handle sleeve, the front end of the sliding push rod is connected with the rear end of the support ring connecting rod, and the rear end of the sliding push rod is connected with a push rod driving device for driving the sliding push rod and the support ring connecting rod to horizontally slide;
the utility model has the advantages that:
because the tissues in the eyes are soft, if the lower part of the crystalline lens is not provided with a bearing structure, the crystalline lens is equivalently suspended in the eyes, the crystalline lens is difficult to accurately operate in the operation process, the operation action amplitude is large, the crystalline lens is greatly deformed, the posterior capsule is easy to damage, and the nucleus block falls; in the utility model, the nucleus block bearing surface is supported below the crystalline lens and is used as the lens bearing surface, so that the deformation of the crystalline lens in the operation process is reduced, the operation action amplitude is reduced, the operation difficulty of the operation is reduced, the damage of the posterior capsule is avoided, and the nucleus block bearing surface is suitable for young experts with less experience to perform the operation auxiliary use;
if the posterior capsule is broken due to improper operation, the lower nuclear block bearing surface can support all the existing nuclear blocks as much as possible to prevent the nuclear blocks from entering the vitreous body cavity, and the auxiliary nuclear blocks are quickly sucked out; after the deformation support ring and the bearing surface of the nuclear block are unfolded, the periphery of the device is smooth, has no edges and corners and no tips, can not scratch intraocular tissues, and has higher use safety.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention.
Fig. 1 is a schematic structural view of an embodiment of the present invention in a retracted state;
fig. 2 is a schematic structural view of the embodiment of the present invention in an extended state;
FIG. 3 is an enlarged schematic view at A in FIG. 1;
FIG. 4 is an enlarged schematic view at B of FIG. 1;
FIG. 5 is an enlarged schematic view at C in FIG. 2;
FIG. 6 is a top perspective view of FIG. 5;
fig. 7 is a first usage state reference diagram of the embodiment of the present invention;
fig. 8 is a second diagram showing a use state of the embodiment of the present invention;
in the figure: 1-a core block support; 11-a support sleeve; 12-a support ring link; 13-deformation support ring; 14-a core block bearing surface; 15-retracting the guiding arc; 16-a conical receiving cavity; 17-a sleeve jaw; 18-link jaws; 2-operating the handle part; 21-handle sleeve; 22-sliding push rod; 23-rotating the push rod; 24-rotating the lever; 25-a pushrod recess; 26-a pushrod bump; 27-a cannula-limiting slide; 28-a push rod slider; 29-cannula slot; 210-a push rod slot; 3-crystalline lens.
Detailed Description
The invention is further explained below by referring to the drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention have been described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
As shown in figures 1 and 2, the cataract crystalline lens nucleus support comprises a nucleus supporting part 1 for supporting the nucleus of a crystalline lens 3, and the back end of the nucleus supporting part 1 is provided with a handle part 2. In this embodiment, the whole operating handle part 2 is made of metal material, so that the operation handle part can be reused; the core block supporting part 1 is mainly made of non-metal materials, so that the cost is low, and the disposable use can be realized.
Referring to fig. 1 to 6, the core block supporting portion 1 includes a supporting sleeve 11, a supporting ring connecting rod 12 penetrates through the supporting sleeve 11 in a sliding manner, a deformable supporting ring 13 capable of retracting and extending out of the front end of the supporting sleeve 11 is connected to the front end of the supporting ring connecting rod 12, a core block supporting surface 14 is coated on a ring body of the deformable supporting ring 13, and the periphery of the core block supporting surface 14 is wound and fixed on the deformable supporting ring 13; when the deformation supporting ring 13 is in an extended state, the deformation supporting ring 13 and the nucleus piece bearing surface 14 are both unfolded to be in a similar circular shape corresponding to the crystalline lens 3, and an obtuse angle is formed between the deformation supporting ring 13 and the operating handle part 2, by adopting the obtuse angle arrangement, when a doctor holds the operating handle part 2, the nucleus piece bearing surface 14 positioned at the front end can extend below the crystalline lens 3 to bear the crystalline lens 3, and the state is shown in fig. 8; when the deformation support ring 13 is in the retracted state, the deformation support ring 13 and the core block bearing surface 14 are folded inside the front end of the support sleeve 11.
In order to facilitate the folding of the deformation support ring 13, a retraction guide arc 15 is arranged on one side of the deformation support ring 13 close to the support ring connecting rod 12, the deformation support ring 13 can be conveniently retracted by adopting the arc guide surface for transition, and meanwhile, after the deformation support ring 13 extends and expands, the deformation support ring 13 and the nucleus block bearing surface 14 form a similar circle shape which is slightly larger than the crystalline lens 3, so that the crystalline lens 3 can be integrally supported; when retracted, the deformation support ring 13 deforms along the retraction guiding arc 15, retracting completely inside the support sleeve 11.
Because the back of withdrawing, it is in to warp to prop ring 13 with nuclear piece bearing surface 14 is folded in the support sleeve 11, because the shared space this moment is great, for folding the holding more convenient the inside being equipped with of front end of support sleeve 11 is used for holding warp prop ring 13 with the toper of nuclear piece bearing surface 14 holds chamber 16, the toper holds chamber 16 and is the outside toper opening that expands, and this toper structure does benefit to warp the retraction of propping ring 13, and provides great retraction space.
The supporting sleeve 11 and the supporting ring connecting rod 12 are flat tubes which are sleeved with each other, the supporting ring connecting rod 12 is limited, the supporting ring connecting rod 12 is prevented from rotating in the using process, and the stretched deformation supporting ring 13 and the core block bearing surface 14 can be guaranteed not to rotate in the using process. In this embodiment, the supporting sleeve 11 and the supporting ring connecting rod 12 are made of plastic, and can be used as a consumable material for one-time use, and can be destroyed as waste after each use to avoid cross infection.
The deformation support ring 13 is a steel wire ring, which has a good deformation effect on one hand, after being released and unfolded, the deformation support ring 13 is in a similar round shape, and can be deformed and retracted into the support sleeve 11 when being squeezed by the support sleeve 11, and on the other hand, the steel wire ring also has certain strength, so that the nucleus block bearing surface 14 can bear and support the whole crystalline lens 3.
The nuclear block bearing surface 14 is a collagen bearing surface, and the collagen polymer is mainly insoluble fibrin and has better stretching capacity, so that the device can adapt to the appropriate deformation of the arc-shaped surface of the crystalline lens 3 when bearing the crystalline lens 3 nuclear block, has better fitting property, and has no damage to other tissues in the eye.
Referring to fig. 1 and 2, the operating handle part 2 comprises a handle sleeve 21, the outer wall of the handle sleeve 21 is provided with a skid-proof part, and the skid-proof part is formed by connecting a straight pipe part and a conical pipe part in a threaded mode, wherein the straight pipe part is located at the rear end, and the conical pipe part is located at the front end. The front end of handle sleeve 21 with the rear end of support sleeve 11 is connected, the smooth movable mounting of the interior level of handle sleeve 21 has sliding push rod 22, sliding push rod 22's front end with prop the rear end of ring connecting rod 12 and connect, sliding push rod 22's rear end is connected with the drive sliding push rod 22 prop ring connecting rod 12 horizontal slip's push rod drive arrangement.
The push rod driving device comprises a rotary push rod 23 installed in the handle sleeve 21 through threads, a threaded connection mode is adopted between the rotary push rod 23 and the handle sleeve 21, the rear end of the rotary push rod 23 extends out of the rear end of the handle sleeve 21 and is connected with a rotary operating handle 24, a push rod groove 25 is formed in the front end of the rotary push rod 23, and a push rod lug 26 which is installed in the push rod groove 25 in a limiting mode is arranged at the rear end of the sliding push rod 22. The sliding push rod 22 is connected with the push rod groove 25 through the push rod convex block 26 in a matching manner, and the push rod convex block 26 is in clearance fit with the push rod groove 25, so that the rotating push rod 23 can rotate relative to the sliding push rod 22, and the sliding push rod 22 can be pushed to horizontally slide.
The front part of the handle sleeve 21 is provided with a sleeve limiting slide way 27 arranged along the axis direction, the periphery of the sliding push rod 22 is provided with a push rod slide block 28 horizontally sliding along the sleeve limiting slide way 27, a limiting step for limiting the push rod slide block 28 is formed at the front end of the sleeve limiting slide way 27, and the sleeve limiting slide way 27 and the push rod slide block 28 are limited to ensure that the sliding push rod 22 can only horizontally slide along the axis direction and cannot rotate along with the rotating push rod 23.
The front end of sliding push rod 22 is equipped with push rod draw-in groove 210, prop the rear end of ring connecting rod 12 be equipped with push rod draw-in groove 210 joint complex connecting rod jack catch 18, through push rod draw-in groove 210 with carry out the joint cooperation between the connecting rod jack catch 18, realize prop ring connecting rod 12 with quick assembly disassembly between the sliding push rod 22.
The working principle of the embodiment is as follows:
before the cataract lens 3 suction operation is carried out, the nucleus pulposus supporting part 1 is firstly installed, and the specific installation mode is as follows: before the core block supporting part 1 is installed, the deformation supporting ring 13 extends out of the supporting sleeve 11 to be in an unfolded state, the supporting ring connecting rod 12 is sleeved in the supporting sleeve 11, and the rear end of the supporting ring connecting rod 12 extends out of the supporting sleeve 11;
before the core block supporting part 1 is installed, the rotating operating handle 24 is rotated to enable the rotating push rod 23 and the sliding push rod 22 to be in a completely extending state in fig. 2, at the moment, the push rod slide block 28 abuts against a limiting step at the front end of the sleeve limiting slide way 27, then the connecting rod clamping jaws 18 of the supporting ring connecting rod 12 are forcedly extruded into the push rod clamping grooves 210, and then the sleeve clamping jaws 17 of the supporting sleeve 11 are forcedly extruded into the sleeve clamping grooves 29, so that the installation of the core block supporting part 1 is completed; then, the rotating operation handle 24 is rotated, so that the rotating push rod 23 rotates to drive the sliding push rod 22 to slide backwards, and further drive the support ring connecting rod 12 to slide backwards, so that the deformation support ring 13 and the core block bearing surface 14 are in a completely contracted state, and at the moment, the tail end of the rotating push rod 23 abuts against the tail end of the handle sleeve 21;
when the cataract lens 3 is sucked, firstly, the support sleeve 11 in the retracted state in fig. 1 enters the anterior chamber of the eye through the corneal side incision, then the rotary operating handle 24 is rotated to enable the sliding push rod 22 to move forwards, the deformation support ring 13 extends out of the support sleeve 11, the deformation support ring 13 and the nucleus block bearing surface 14 are unfolded in a similar circle shape in the eye, the unfolded state is shown in fig. 2, then the angle is adjusted, and the nucleus block bearing surface 14 is placed below the lens 3 to support the lens 3, and the state is shown in fig. 7 and 8; then, beginning to perform cataract crystalline lens 3 suction surgery, wherein in the whole surgery process, the nucleus block bearing surface 14 is always supported below the crystalline lens 3 to support the crystalline lens 3 upwards, and the auxiliary nucleus block is completely sucked out; after the cataract lens 3 suction operation is finished, the rotating operation handle 24 is reversely rotated, so that the sliding push rod 22 slides backwards, the deformation support ring 13 is contracted into the support sleeve 11, the retracting state is shown in figure 1, at this time, the device is withdrawn from the eye, and after the withdrawal, the nucleus pulposus support part 1 is polluted, can be dragged downwards with force, and is removed and discarded.
The utility model has the advantages as follows:
1. because the intraocular tissue is softer, if the lower part of the crystalline lens 3 is not provided with a bearing structure, the crystalline lens 3 is equivalently suspended in the eye, the crystalline lens 3 is difficult to accurately operate in the operation process, the operation action amplitude is larger, the crystalline lens 3 deforms greatly, the posterior capsule is easy to damage, and the nucleus block falls; in the utility model, the nucleus block bearing surface 14 is adopted to be supported below the crystalline lens 3 and used as a supporting surface of the crystalline lens 3, so that the deformation of the crystalline lens 3 in the operation process is reduced, the operation action amplitude is reduced, the operation difficulty of the operation is reduced, the damage of the posterior capsule is avoided, and the nucleus block bearing surface is suitable for young experts with less experience to perform auxiliary operation;
2. if the posterior capsule is broken due to improper operation, the nuclear block bearing surface 14 positioned below can support all existing nuclear blocks as much as possible, so that the nuclear blocks are prevented from entering the vitreous body cavity, the auxiliary nuclear blocks are quickly sucked out, all the large and small nuclear blocks can be supported as much as possible due to the fact that the surface structure formed by the nuclear block bearing surface 14 is non-hollow and the outer ring of the surface structure is larger than the periphery of the crystalline lens 3, the supporting effect is better, the device is used as an auxiliary tool in cataract suction surgery, the falling phenomenon caused by breakage of the posterior capsule can be avoided, and the falling nuclear blocks can be supported and quickly sucked out once the posterior capsule is broken;
3. after the deformation support ring 13 and the nuclear block bearing surface 14 are unfolded, the periphery of the device is smooth, has no edges and corners, has no tips, can not scratch intraocular tissues, and has higher use safety;
4. the device adopts a threaded connection mode in the telescopic process, the thread rotation has continuity, the purpose of micro adjustment can be realized through rotation, the extension and retraction of the deformation support ring 13 are ensured to be progressive, the position and the angle can be accurately observed under a microscope in the extension and retraction processes, the device can be adjusted and adapted to the complex environment in eyes in real time, the condition that the peripheral tissues are impacted by sudden extension and retraction can not occur, and the damage to the tissues in the eyes can be avoided; in addition, the thread matching mode also has a certain self-locking effect, and the total weight of the lens is smaller, so that the rotating push rod cannot rotate in the supporting and bearing process, and the position of the deformation support ring cannot be changed at will.
The basic principles, main features and advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. Cataract lens nucleus piece eyelidretractor includes the nuclear piece supporting part that carries out the bearing to the lens nucleus piece, operation handle portion, its characterized in that are installed to the rear end of nuclear piece supporting part: the core block supporting part comprises a supporting sleeve, a supporting ring connecting rod penetrates through the supporting sleeve in a sliding mode, the front end of the supporting ring connecting rod is connected with a deformable supporting ring which can retract and extend out of the front end of the supporting sleeve, and a core block supporting surface is coated on a ring body of the deformable supporting ring; the operation handle portion includes the handle sleeve pipe, the handle sleeve pipe the front end with support sleeve pipe's rear end is connected, horizontal slidable mounting has sliding push rod in the handle sleeve pipe, sliding push rod's front end with prop the rear end of ring connecting rod and connect, sliding push rod's rear end is connected with the drive sliding push rod prop ring connecting rod horizontal slip's push rod drive arrangement.
2. The cataract lens nucleus support of claim 1, wherein: when the deformation supporting ring is in an extending state, the deformation supporting ring and the bearing surface of the nuclear block are unfolded to be in a similar circle shape corresponding to the crystalline lens, and an obtuse angle is formed between the deformation supporting ring and the handle part of the operating handle; when the deformation support ring is in a retraction state, the deformation support ring and the bearing surface of the core block are folded in the front end of the support sleeve.
3. The cataract lens nucleus support of claim 2, wherein: and one side of the deformation supporting ring, which is close to the supporting ring connecting rod, is provided with a retraction guide inclined surface.
4. The cataract lens nucleus support of claim 1, wherein: the inner part of the front end of the supporting sleeve is provided with a conical accommodating cavity for accommodating the deformation supporting ring and the bearing surface of the nuclear block.
5. The cataract lens nucleus support of claim 1 wherein: the supporting sleeve and the supporting ring connecting rod are flat tubes.
6. The cataract lens nucleus support of claim 1, wherein: the deformation support ring is a steel wire ring, and the bearing surface of the core block is a collagen bearing surface.
7. The cataract lens nucleus support of claim 1, wherein: the push rod driving device comprises a rotary push rod installed in the handle sleeve in a threaded mode, the rear end of the rotary push rod, extending out of the handle sleeve, is connected with a rotary operating handle, a push rod groove is formed in the front end of the rotary push rod, and a push rod protruding block installed in the push rod groove in a limiting mode is arranged at the rear end of the sliding push rod.
8. The cataract lens nucleus support of claim 1, wherein: the front portion of the handle sleeve is provided with a sleeve limiting slide way arranged along the axis direction, and the periphery of the sliding push rod is provided with a push rod slide block which horizontally slides along the sleeve limiting slide way.
9. The cataract lens nucleus support of claim 1 wherein: the handle sleeve pipe is characterized in that a sleeve pipe clamping groove is formed in the periphery of the front end of the handle sleeve pipe, and a sleeve pipe clamping claw matched with the sleeve pipe clamping groove in a clamping mode is arranged at the rear end of the supporting sleeve pipe.
10. The cataract lens nucleus support of claim 1 wherein: the front end of the sliding push rod is provided with a push rod clamping groove, and the rear end of the supporting ring connecting rod is provided with a connecting rod clamping jaw which is in clamping fit with the push rod clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320170375.7U CN218852942U (en) | 2023-01-31 | 2023-01-31 | Cataract lens nucleus piece supporter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320170375.7U CN218852942U (en) | 2023-01-31 | 2023-01-31 | Cataract lens nucleus piece supporter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218852942U true CN218852942U (en) | 2023-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320170375.7U Active CN218852942U (en) | 2023-01-31 | 2023-01-31 | Cataract lens nucleus piece supporter |
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| Country | Link |
|---|---|
| CN (1) | CN218852942U (en) |
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2023
- 2023-01-31 CN CN202320170375.7U patent/CN218852942U/en active Active
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