CN116672008A - Medical eyelid retractor - Google Patents
Medical eyelid retractor Download PDFInfo
- Publication number
- CN116672008A CN116672008A CN202310797164.0A CN202310797164A CN116672008A CN 116672008 A CN116672008 A CN 116672008A CN 202310797164 A CN202310797164 A CN 202310797164A CN 116672008 A CN116672008 A CN 116672008A
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- eyelid
- rod body
- medical
- eyelid retractor
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- 210000000744 eyelid Anatomy 0.000 title claims abstract description 172
- 238000001179 sorption measurement Methods 0.000 claims abstract description 15
- 210000000078 claw Anatomy 0.000 claims abstract description 14
- 230000005291 magnetic effect Effects 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 17
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 14
- 230000006872 improvement Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000001508 eye Anatomy 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0231—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for eye surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0083—Apparatus for testing the eyes; Instruments for examining the eyes provided with means for patient positioning
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
Abstract
The invention relates to the field of medical instruments, in particular to a medical eyelid retractor. It comprises the following steps: the device comprises a base, two eyelid opening rods, a magnetic attraction mechanism, a handle and two adjusting bolts. The base is rectangular form, contains U type groove, first through-hole, spacing waist hole and first screw hole in it. The two eyelid opening rods are symmetrically arranged and vertically inserted into the U-shaped groove along the two ends of the opening of the U-shaped groove in the base. Each eyelid opening rod comprises a hook claw, a first rod body, a second rod body, a reset spring and a plurality of limiting pieces. The magnetic attraction mechanism comprises an electromagnet and two adsorption sheets; the electromagnet is located in the middle of the inner cavity of the U-shaped groove in the base. The adsorption piece is fixed on one side of the second rod body, which is close to the inner side. The handle is connected to the second through hole of the base; the handle is provided with a switch module. The two adjusting bolts are connected with the base through the first threaded holes and used for adjusting the maximum eyelid opening width of the medical eyelid retractor. The eyelid retractor solves the defects that the traditional eyelid retractor is complex in operation, poor in use experience and easy to cause discomfort to patients.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a medical eyelid retractor.
Background
An eyelid retractor is a medical device commonly used in ophthalmic examinations or ophthalmic procedures. The eyelid retractor is used to support the upper and lower eyelids of a patient by two hooks and then open the eyelids by a bracket to expose the eyeball below the eyelids for examination or operation. The eyelid retractor is favorable for expanding the operation field of doctors and is an indispensable medical instrument in ophthalmic surgery.
Wherein, fig. 1 is a product picture of the most typical V-shaped steel wire eyelid speculum, the steel wire eyelid speculum is the simplest and easy-to-use eyelid speculum, including a V-shaped expanding arm and an eyelid speculum at the end, an operator grips the supporting arm to deform inwards, so that the two eyelid speculums at the end are close to each other, then releases the supporting arm, and the eyelid speculums are automatically far away, thereby realizing eyelid spreading. A disadvantage of such products is that the eyelid width is not adjustable.
In different ophthalmic examinations or ophthalmic operations, the requirements on the eyelid expansion degree are different, and the eyelid opening width of the traditional V-shaped steel wire eyelid retractor is not adjustable, so that the requirements of different use scenes are difficult to meet. To solve this problem, technicians have developed a number of products with adjustable eyelid width. Figure 2 illustrates three exemplary eyelid retractor products with adjustable eyelid width; the first left part in fig. 2 is a U-shaped plate type eyelid retractor, and the second left part is an upgraded steel wire eyelid retractor; the left three products are Y-shaped adjustable sheet eyelid retractor. The three products have different structures and larger differences in performance. In the using process of the left first and the left third products, a doctor is required to firstly adjust the eyelid opening hook to the nearest position by rotating the adjusting knob in the forward direction, and then the adjusting knob is continuously rotated in the reverse direction to the ideal eyelid opening width according to the requirements of different scenes on the eyelid opening width. The usage of the second left product is different from the first left and the third left; the doctor holds the expansion arms tightly first to enable the torsion springs to deform, then the expansion arms are released continuously until the distance between the eyelid opening hooks meets the required eyelid opening width, at the moment, the adjusting knob on one expansion arm and the arc-shaped groove on the other expansion arm are screwed to lock, and the opening angles of the two expansion arms are fixed.
The three blepharos of fig. 2 operate in different ways, and each has advantages and disadvantages, but these conventional blepharos have a common disadvantage: i.e. the doctor needs to operate with both hands, and after hooking the eyelid of the user, the instrument is continuously adjusted to achieve the required state of eyelid opening width. In this process, once the movement amplitude of the doctor is too large, the eyelid retractor may be separated, and physiological discomfort may be brought to the patient. In addition, the time for the doctor to operate the eyelid retractor is relatively long, which may give a great psychological stress to the patient who receives the ophthalmic surgery or the ophthalmic examination. It follows that conventional eyelid retractors can create a poor use experience for the patient.
Disclosure of Invention
Based on the above, the invention provides the medical eyelid retractor for solving the defects that the traditional eyelid retractor is complex in operation, poor in use experience and easy to cause discomfort to the physiology and the psychology of a patient.
The technical scheme provided by the invention is as follows:
a medical eyelid retractor, comprising: the device comprises a base, two eyelid opening rods, a magnetic attraction mechanism, a handle and two adjusting bolts.
Wherein, the base is rectangular, contains an opening and towards the U type groove that faces forward in it. The middle of the back of the base is provided with a first through hole. And a plurality of groups of limiting waist-shaped holes parallel to the extending direction of the U-shaped grooves are respectively arranged on the wall surfaces at the two ends of the base. The positions of the base corresponding to the two ends of the U-shaped groove are respectively provided with a first threaded hole. The first through hole, the limiting waist-shaped hole and the first threaded hole are communicated with the inner cavity of the U-shaped groove in the base.
The two eyelid opening rods are symmetrically arranged and vertically inserted into the U-shaped groove along the two ends of the opening of the U-shaped groove in the base. Each eyelid opening rod comprises a hook claw, a first rod body, a second rod body, a reset spring and a plurality of limiting pieces. The first rod body and the second rod body are coaxially and detachably connected. The hook claw is positioned below the front end of the first rod body; one end of the reset spring is connected to the inner wall of the U-shaped groove in the base, and the other end of the reset spring is connected to the surface of the outer side of the second rod body. Each limiting piece penetrates through each limiting waist-shaped hole in the base to be detachably connected with the second rod body, so that the two eyelid opening rods are only allowed to be mutually close to or far away from each other along the extending direction of the base.
The magnetic attraction mechanism comprises an electromagnet and two adsorption sheets; the electromagnet is located in the middle of the inner cavity of the U-shaped groove in the base. The adsorption sheets are made of ferromagnetic materials and are respectively fixed at the corresponding positions of the inner sides of the two second rod bodies.
The handle is connected to the second through hole of the base; the handle is provided with a switch module for controlling the electromagnet to be turned on or off.
The two adjusting bolts are connected with the base through first threaded holes; the adjusting bolt is used for screwing out and screwing in along the first threaded hole so as to prop against the eyelid retractor rod and further adjust the maximum eyelid retractor width of the medical eyelid retractor.
As a further improvement of the invention, two first waist-shaped holes with coaxial extending directions are symmetrically arranged on two sides of the back surface of the base respectively. Two second waist-shaped holes with coaxial extending directions are symmetrically arranged on two sides of the upper surface of the base respectively. Two sides of the lower surface of the base are symmetrically provided with two third waist-shaped holes with coaxial extension directions respectively. The extension length of the first waist-shaped hole, the extension length of the second waist-shaped hole and the extension length of the third waist-shaped hole are the same, and the two ends of the first waist-shaped hole, the second waist-shaped hole and the third waist-shaped hole which are positioned on the same side of the base are flush.
As a further improvement of the invention, the base adopts an integrated part; and the limiting piece in the eyelid opening rod adopts an integrated limiting bolt with a nut. In the screw rod of the limit bolt, a section close to the screw cap is a light rod end, and a section far away from the screw cap is a thread end; and the tail end and the upper side and the lower side of the second rod body are respectively provided with a limiting screw hole matched with the thread section in the limiting bolt.
As a further improvement of the invention, the base adopts a split part; comprises a bottom shell and an upper cover plate. The limiting piece in the eyelid opening rod adopts a split limiting bolt comprising a nut and a screw rod, and the bottoms of the three screw rods are respectively and fixedly connected to the upper side, the lower side and the tail end of the second rod body; the section of the screw rod, which is close to the second rod body, is a light rod end, and the section of the screw rod, which is far away from the second rod body, is a thread section; the nut includes internal threads that mate with the threaded section of the screw.
As a further improvement of the invention, a section of the adjusting bolt close to the screw cap is a threaded section, and a section of the adjusting bolt far away from the screw cap is a light rod end. The adjustable range of the eyelid opening width delta d in the medical eyelid retractor meets the following formula:
Δd＝2(d 1 -d 2 )
in the above, d 1 D for adjusting the length of the threaded section in the bolt 2 Is the depth of the first threaded hole.
As a further improvement of the invention, the base and the first rod body are both made of ceramic materials; the handle is internally provided with a flexible rubber sleeve made of insulating materials, and friction lines are arranged on the surface of the flexible rubber sleeve.
As a further improvement of the invention, in the electrified state of the electromagnet, the electromagnet is magnetized and is attached to the two adsorption sheets, the two eyelid opening rods are close to each other, and at the moment, the two groups of reset springs are in the maximum stretching state.
Under the condition that the electromagnet is powered off, the electromagnet is demagnetized and separated from the two adsorption sheets; at this time, the two sets of return springs return to move the two eyelid opening bars away from each other until the maximum eyelid opening width is reached.
As a further improvement of the present invention, the method of adjusting the maximum eyelid width of the medical eyelid retractor is as follows:
the two adjusting bolts are unscrewed or screwed in advance so that the minimum distance between the two adjusting bolts is equal to the ideal eyelid opening width to be adjusted. Then, in any use state, the maximum eyelid opening width that the medical eyelid retractor can reach is the ideal eyelid opening width.
As a further improvement of the invention, the first rod body adopts a rod body with a circular section, and the second rod body adopts a rod body with a square section; the front end of the second rod body is provided with a cylindrical slot, and the first rod body and the second rod body are mutually spliced.
And/or
The first rod body and the hook claw are integrated parts made of medical stainless steel materials.
As a further improvement of the invention, the tail end of the handle is connected with a power line, and the electromagnet is connected with the mains supply through the power line to supply power.
Or (b)
A rechargeable battery and a driving circuit are arranged in the handle; rechargeable batteries are used to power the electromagnets.
The invention has the following beneficial effects:
the medical eyelid retractor realizes flexible adjustment of the eyelid retractor width of the instrument in a preset mode, and a doctor does not need to adjust the instrument in the operation process, so that the eyelid of a patient can be conveniently and rapidly retracted and maintained. This can reduce the difficulty of operation for the doctor and overcome the physiological and psychological discomfort of the patient.
The medical eyelid retractor can finish the telescopic adjustment of the eyelid retractor rod by one key, is very convenient to operate and supports a doctor to operate by one hand. Therefore, the method can be applied to various different ophthalmic examinations and ophthalmic surgeries, and has extremely high practicability.
Drawings
Figure 1 is a product photograph of a classical V-wire eyelid retractor of the background art.
Fig. 2 is a product image of three prior art eyelid openers with adjustable eyelid width provided in the background.
Fig. 3 is an exploded view of a part of the medical eyelid retractor provided in embodiment 1 of the present invention.
Fig. 4 is a schematic view showing the overall structure of the assembled medical eyelid retractor according to embodiment 1 of the present invention.
Fig. 5 is a schematic view showing the structure of the base of the medical eyelid retractor of embodiment 1 of the present invention in front and back view.
Fig. 6 is a schematic structural diagram of the eyelid retractor and the stopper of embodiment 1 before and after assembly.
Fig. 7 is a schematic structural view of a medical eyelid retractor employing a split-type base according to embodiment 1 of the present invention.
Fig. 8 is a schematic view showing a longitudinal section of a U-shaped groove of a base in embodiment 1 of the present invention.
Fig. 9 is a partial enlarged view of a portion B in fig. 5.
Fig. 10 is a schematic structural view of an eye-opening lever using a split-type limiting member according to the present invention.
Marked in the figure as:
1. a base; 2. an eyelid opening rod; 3. a magnetic attraction mechanism; 4. a handle; 5. an adjusting bolt; 10. a U-shaped groove; 11. a first waist-shaped hole; 12. a second waist-shaped hole; 13. a third waist-shaped hole; 14. a first through hole; 15. a first threaded hole; 16. a limit clamping groove; 20. a limiting piece; 21. a hook claw; 22. a first rod body; 23. a second rod body; 24. a return spring; 31. an electromagnet; 32. an adsorption sheet; 40. a switch module; 230. and a limiting screw hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.
Example 1
This embodiment provides a medical eyelid retractor, as shown in fig. 3 and 4, comprising: the device comprises a base 1, two eyelid opening rods 2, a magnetic attraction mechanism 3, a handle 4 and two adjusting bolts 5.
Wherein, the base 1 is in a strip shape and comprises a U-shaped groove 10 which is opened towards the front. The base 1 is provided with a first through hole 14 in the middle of the back surface. The positions of the base 1 corresponding to the two ends of the U-shaped groove 10 are respectively provided with a first threaded hole 15. The wall surfaces at two ends of the base 1 are respectively provided with a plurality of groups of limiting waist-shaped holes parallel to the extending direction of the U-shaped groove 10. As shown in fig. 5, the method specifically includes: two first waist-shaped holes 11 with coaxial extending directions are symmetrically arranged on two sides of the back surface of the base 1. Two second waist-shaped holes 12 with coaxial extending directions are symmetrically arranged on two sides of the upper surface of the base 1 respectively. Two third waist-shaped holes 13 with coaxial extending directions are symmetrically arranged on two sides of the lower surface of the base 1 respectively. The first, second and third waist-shaped holes 11, 12 and 13 have the same extension length, and the two ends of the first, second and third waist-shaped holes 11, 12 and 13 located at the same side of the base 1 are flush. In this embodiment, the first through hole 14, the first threaded hole 15, the first waist-shaped hole 11, the second waist-shaped hole 12 and the third waist-shaped hole 13 are all in communication with the inner cavity of the U-shaped groove 10 in the base 1.
The two eyelid opening rods 2 are symmetrically arranged and vertically inserted into the U-shaped groove 10 along the two ends of the opening of the U-shaped groove 10 in the base 1. As shown in fig. 6, each eyelid opening lever 2 includes a hooking jaw 21, a first lever body 22, a second lever body 23, a return spring 24, and a plurality of stoppers 20. The first rod 22 and the second rod 23 are coaxially and detachably connected. Specifically, in this embodiment, the first rod 22 is a rod with a circular cross section, and the second rod 23 is a rod with a square cross section; the front end of the second rod body 23 is provided with a cylindrical slot, and the first rod body 22 and the second rod body 23 are mutually inserted. The hook claw 21 is positioned below the front end of the first rod body 22; the first rod body 22 and the hook claw 21 are made of medical stainless steel.
One end of the return spring 24 is connected to the inner wall of the U-shaped groove 10 in the base 1, and the other end is connected to the surface of the second rod 23 on the outer side. Each stopper 20 is detachably connected to the second rod body 23 through each stopper waist hole in the base 1, respectively, so that the two eyelid bars 2 are allowed to approach or separate from each other only in the extending direction of the base 1. Wherein each stopper 20 serves to restrain displacement of the two eyelid bars 2 in the vertical direction and in the direction perpendicular to the extension direction of the base 1.
The magnetic attraction mechanism 3 comprises an electromagnet 31 and two attraction pieces 32; as shown in fig. 7 and 8, the electromagnet 31 is located in the middle of the inner cavity of the U-shaped groove 10 in the base 1. The adsorption sheets 32 are made of ferromagnetic material and are respectively fixed at corresponding positions on the inner side of the two second rod bodies 23. The handle 4 is connected to the second through hole of the base 1; the handle 4 is provided with a switch module 40 for controlling the electromagnet 31 to be turned on or off.
The two adjusting bolts 5 are connected with the base 1 through first threaded holes 15; the section of the adjusting bolt 5 close to the screw cap is a threaded section, and the section far away from the screw cap is a rod end. The adjusting bolt 5 is used for screwing out along the first threaded hole 15 so as to abut against the eyelid retractor rod 2 and further adjust the maximum eyelid retractor width of the medical eyelid retractor. The adjustable range of the eyelid opening width delta d in the medical eyelid retractor meets the following formula:
Δd＝2(d 1 -d 2 )
in the above, d 1 To adjust the length of the threaded section in the bolt 5, d 2 Is the depth of the first threaded hole 15.
In this embodiment, the base 1 and the first rod 22 are both made of ceramic materials; the handle 4 is provided with a flexible rubber sleeve made of insulating materials, and the surface of the flexible rubber sleeve is provided with friction lines.
Fig. 4 is a final product form of the medical eyelid retractor according to the present embodiment, in order to design and manufacture a corresponding product, the present embodiment designs two different structural types of the base 1, and specifically designs two different limiting members 20 and corresponding assembling modes:
one of the schemes is as follows: the base 1 adopts an integral part as shown in fig. 5; as shown in fig. 9, a limiting slot 16 is further disposed in the U-shaped slot 10 of the base 1 corresponding to the mounting position of the electromagnet 31. And the limiting piece 20 in the eyelid opening rod 2 adopts an integrated limiting bolt with a nut as shown in fig. 6. In the screw rod of the limit bolt, a section close to the screw cap is a light rod end, and a section far away from the screw cap is a thread end; the tail end and the upper side and the lower side of the second rod body 23 are respectively provided with a limit screw hole 230 matched with the thread section in the limit bolt.
The assembly process of the medical eyelid retractor is as follows:
firstly, a first rod body 22 with a hook claw 21 is inserted into a second rod body 23, and one end of a return spring 24 is fixedly connected with the outer side of the second rod body 23; finally, the adsorption sheet 32 is fixed on the rod body of the inner side of each second rod body 23, and the assembly of the eyelid opening rod 2 is completed.
Then, one end of the second rod body 23 of the eyelid opening rod 2 is vertically inserted into two ends of the U-shaped groove 10 in the base 1; the other end of the return spring 24 is fixedly connected with a connecting piece reserved on the inner wall of the base 1 by a tool. Three limit bolts are respectively inserted into the base 1 along the first waist-shaped hole 11, the second waist-shaped hole 12 and the third waist-shaped hole 13, and are screwed with limit screw holes 230 at corresponding positions in the two second rod bodies 23, so that the eyelid opening rod 2 is limited to a state of being only allowed to slide back and forth along the extending directions of the waist-shaped holes.
Next, the electromagnet 31 is inserted into the base 1 along the limit slot 16, and the relevant cable of the electromagnet 31 is threaded out from the first through hole 14 on the back of the base 1, at this time, the cable of the electromagnet 31 is electrically connected with the cable of the switch module 40 in the handle 4, and the handle 4 is fixedly connected with the second through hole on the back of the base 1. It should be noted that: in this embodiment, a plurality of detachable connection modes can be adopted between the handle 4 and the base 1; such as a threaded connection, an interference fit, a flanged connection, etc. Non-detachable connection modes such as welding, cementing and the like can also be adopted. In the solution shown in the figures of the present embodiment, the end of the handle 4 is directly inserted into the first through hole 14, and the handle 4 and the base 1 are tightly connected by interference fit.
Finally, the two adjusting bolts 5 are screwed in along the first threaded holes 15 on the two sides of the base 1 respectively, so that the assembly work of the whole medical eyelid retractor can be completed.
In addition, in the solution of other embodiments, as shown in fig. 7, the base 1 may also be a split-type part; comprises a bottom shell and an upper cover plate. Correspondingly, in this scheme, the limiting piece 20 in the eyelid opening rod 2 adopts a split limiting bolt comprising a nut and a screw rod, as shown in fig. 10, the bottoms of the three screw rods are fixedly connected to the upper side, the lower side and the tail end of the second rod body 23 respectively; the section of the screw rod, which is close to the second rod body 23, is a light rod end, and the section of the screw rod, which is far away from the second rod body 23, is a thread section; the nut includes internal threads that mate with the threaded section of the screw.
In the second variant, the medical eyelid retractor is assembled in a manner similar to that of the first variant, with the only difference that the assembly method between the eyelid retractor lever 2 and the base 1 is different: in the latter, the technician needs to open the cover plate first, then place the eyelid retractor at a corresponding position in the base 1, so that the corresponding screw in the second rod body 23 passes out along the first waist-shaped hole 11 and the third waist-shaped hole 13, respectively, and then fix the cover plate on the bottom shell; finally, three nuts are used for fixedly connecting with the screw. The assembly of the eyelid retractor 2 with the base 1 is completed.
The medical eyelid retractor provided in this embodiment is a brand new product, and the application method of the medical eyelid retractor is different from the existing plate eyelid retractor, steel wire eyelid retractor and adjustable sheet eyelid retractor, and the application method of the medical eyelid retractor in this embodiment is as follows:
before use, a doctor adjusts the medical eyelid retractor in advance according to the requirement of eyelid opening distance in the ophthalmic examination or ophthalmic operation executed at the time. The two eyelid opening rods 2 are close to or far away from each other by screwing the two adjusting knobs, so that the state of ideal eyelid opening width is achieved. Then, in any use state, the eyelid opening width which can be achieved by the medical eyelid retractor is the preset eyelid opening width.
In use, the doctor first presses the switch module 40 on the handle 4 so that the electromagnet 31 is energized. In the energized state of the electromagnet 31, the electromagnet 31 is magnetized and is attached to the two adsorption sheets 32, and the two eyelid opening bars 2 are close to each other. At this time, the distance between the two eyelid opening bars 2 is closest, and both sets of return springs 24 are in the maximum tension state. In the state again, the user can lightly rotate the medical eyelid retractor so that the hooking claws 21 at the front end of the eyelid retractor 2 hook the upper eyelid and the lower eyelid of the patient, respectively.
Next, the medical use presses the switch module 40 on the handle 4 again, so that the electromagnet 31 is powered off. Under the condition that the electromagnet 31 is powered off, the electromagnet 31 is demagnetized and separated from the two adsorption sheets 32; at this time, the two sets of return springs 24 are returned to move the two eyelid retractor rods 2 away from each other until the maximum eyelid retractor width is reached. And because doctor has adjusted the depth of adjust knob in advance in base 1, so the spring reset process, once two eyelid poles 2 reach the state of the ideal eyelid width of adjustment in advance, the eyelid pole 2 will be blocked by adjust knob, and the spring can't continue to retract after this state is reset.
That is to say: after the medical eyelid retractor provided by the embodiment is utilized, a doctor only needs to adjust the eyelid retractor width of the medical eyelid retractor in advance before an operation or an examination, and no debugging is actually needed in the actual operation process. The two eyelid opening rods 2 are close only by pressing the switch once, and the two eyelid opening rods 2 are reset to the preset eyelid opening width position by pressing the switch once again and are circulated and reciprocated. Therefore, the medical eyelid retractor provided by the implementation is very simple and convenient in operation process; the doctor can operate by one hand to finish eyelid fixation and expansion, thereby greatly reducing the operation difficulty of the doctor. Meanwhile, the operation process of the product provided by the invention is very rapid, so that the use experience of a patient can be greatly improved, and the physiological and psychological discomfort of the patient when the eyelid retractor is used can be reduced.
What should be additionally stated is: the product provided in the various figures of this embodiment is a hand-held instrument and may in fact be mounted on various types of examination devices or holders as part of the associated device to perform the task of dilating and maintaining the eyelid of the patient.
In the solution provided in this embodiment, the electromagnet 31 is the only electronic control component in the medical eyelid retractor, and this embodiment can supply power in two ways. One of the modes is as follows: the tail end of the handle 4 is connected with a power line, and the electromagnet is connected with the mains supply through the power line to supply power. Another way is: a rechargeable battery and a driving circuit are built in the handle 4; rechargeable batteries are used to power the electromagnets.
In the practical application of the medical eyelid retractor provided in this embodiment, the electromagnet 31 operates only in the stage of driving the eyelid retractor 2 to contract, and in the stage of expanding the eyelid retractor 2, the electromagnet 31 is in the state of de-energized and demagnetized. The medical eyelid retractor can reduce the power consumption of the medical eyelid retractor on the one hand, and can be in a demagnetized state in the operation or examination process on the other hand, so that the influence of the magnetism of the instrument on the examination instrument or operation is avoided. On the basis of the above, the base 1 and the second rod 23 in this embodiment are preferably made of a ceramic material with good insulation, no magnetism, good weather resistance and high structural strength. While the first rod body 22 and the hook claw 21 are preferably made of medical stainless steel materials. The detachable design between the first rod body 22 and the second rod body 23 is very convenient for taking down the combination of the first rod body 22 and the hook claw 21, the front end of which is in direct contact with eyes of a patient, and then sending the combination into the instrument disinfection equipment for high-temperature steaming and sterilization.
The above examples illustrate only one embodiment of the invention, which is described in more detail and is not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (10)
1. A medical eyelid retractor, comprising:
the base is in a strip shape and comprises a U-shaped groove with a front opening; a first through hole is formed in the middle of the back surface of the base; a plurality of groups of limiting waist-shaped holes parallel to the extending direction of the U-shaped groove are respectively arranged on the wall surfaces at two ends of the base; the positions of the base corresponding to the two ends of the U-shaped groove are respectively provided with a first threaded hole; the first through hole, the limiting waist-shaped hole and the first threaded hole are communicated with the inner cavity of the U-shaped groove in the base;
the two eyelid opening rods are symmetrically arranged and vertically inserted into the U-shaped groove along the two ends of the U-shaped groove opening in the base; each eyelid opening rod comprises a hook claw, a first rod body, a second rod body, a reset spring and a plurality of limiting pieces; the first rod body and the second rod body are coaxially and detachably connected; the hook claw is positioned below the front end of the first rod body; one end of the reset spring is connected to the inner wall of the U-shaped groove in the base, and the other end of the reset spring is connected to the surface of the outer side of the second rod body; each limiting piece penetrates through each limiting waist-shaped hole in the base and is detachably connected with the second rod body, so that the two eyelid opening rods are only allowed to be mutually close to or far away from each other along the extending direction of the base;
the magnetic attraction mechanism comprises an electromagnet and two adsorption sheets; the electromagnet is positioned in the middle of the inner cavity of the U-shaped groove in the base; the adsorption sheets are made of ferromagnetic materials and are respectively fixed at corresponding positions on one inner side of the two second rod bodies;
a handle connected at the second through hole of the base; a switch module for controlling the electromagnet to be turned on or off is arranged in the handle; and
the two adjusting bolts are connected with the base through first threaded holes; the adjusting bolt is used for propping against the eyelid retractor rod so as to adjust the maximum eyelid retractor width of the medical eyelid retractor.
2. The medical eyelid retractor of claim 1, wherein: two sides of the back surface of the base are symmetrically provided with two first waist-shaped holes with coaxial extending directions respectively; two second waist-shaped holes with coaxial extending directions are symmetrically arranged on two sides of the upper surface of the base respectively; two sides of the lower surface of the base are symmetrically provided with two third waist-shaped holes with coaxial extension directions respectively; the extension length of the first waist-shaped hole, the extension length of the second waist-shaped hole and the extension length of the third waist-shaped hole are the same, and the two ends of the first waist-shaped hole, the second waist-shaped hole and the third waist-shaped hole which are positioned on the same side of the base are flush.
3. The medical eyelid retractor of claim 2, wherein: the base is an integrated part;
and is also provided with
The limiting piece in the eyelid opening rod adopts an integrated limiting bolt with a screw cap, wherein a section of the screw rod of the limiting bolt, which is close to the screw cap, is a light rod end, and a section of the screw rod, which is far away from the screw cap, is a threaded end; and the tail end and the upper side and the lower side of the second rod body are respectively provided with a limiting screw hole matched with the threaded section in the limiting bolt.
4. The medical eyelid retractor of claim 2, wherein: the base is a split part; comprises a bottom shell and an upper cover plate;
and is also provided with
The limiting parts are split type limiting bolts comprising nuts and screws, and the bottoms of the three screws are respectively and fixedly connected to the upper side, the lower side and the tail end of the second rod body; the section of the screw rod, which is close to the second rod body, is a light rod end, and the section of the screw rod, which is far away from the second rod body, is a thread section; the nut comprises an internal thread matched with the thread section in the screw rod.
5. The medical eyelid retractor of claim 1, wherein: the section of the adjusting bolt, which is close to the screw cap, is a threaded section, and the section of the adjusting bolt, which is far away from the screw cap, is a light rod end; the adjustable range of the eyelid opening width delta d in the medical eyelid retractor meets the following formula:
Δd＝2(d 1 -d 2 )
in the above, d 1 D for adjusting the length of the threaded section in the bolt 2 Is the depth of the first threaded hole.
6. The medical eyelid retractor of claim 1, wherein: the base and the first rod body are both made of ceramic materials; the handle is internally provided with a flexible rubber sleeve made of an insulating material, and friction lines are arranged on the surface of the flexible rubber sleeve.
7. The medical eyelid retractor of claim 1, wherein: in the state that the electromagnet is electrified, the electromagnet is magnetized and is attached to the two adsorption sheets, the two eyelid opening rods are close to each other, and at the moment, the two groups of reset springs are in the maximum stretching state; under the condition that the electromagnet is powered off, the electromagnet is demagnetized and separated from the two adsorption sheets; at this time, the two groups of return springs are reset to separate the two eyelid opening rods from each other until the maximum eyelid opening width is reached.
8. The medical eyelid retractor of claim 6, wherein the method of adjusting the maximum eyelid width of the medical eyelid retractor is as follows:
pre-unscrewing or screwing the two adjusting bolts so that the minimum distance between the two adjusting bolts is equal to the ideal eyelid opening width to be adjusted; then, in any use state, the maximum eyelid opening width that the medical eyelid retractor can reach is the preset ideal eyelid opening width.
9. The medical eyelid retractor of claim 1, wherein: the first rod body is a rod body with a circular section, and the second rod body is a rod body with a square section; the front end of the second rod body is provided with a cylindrical slot, and the first rod body and the second rod body are mutually spliced;
and or (or)
The first rod body and the hook claw are integrated parts made of medical stainless steel materials.
10. The medical eyelid retractor of claim 1, wherein: the tail end of the handle is connected with a power line, and the electromagnet is connected with a mains supply through the power line to supply power;
or (b)
The handle is internally provided with a rechargeable battery and a driving circuit; the rechargeable battery is used for supplying power to the electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310797164.0A CN116672008A (en) | 2023-06-30 | 2023-06-30 | Medical eyelid retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310797164.0A CN116672008A (en) | 2023-06-30 | 2023-06-30 | Medical eyelid retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116672008A true CN116672008A (en) | 2023-09-01 |
Family
ID=87779209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310797164.0A Pending CN116672008A (en) | 2023-06-30 | 2023-06-30 | Medical eyelid retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116672008A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117159056A (en) * | 2023-09-26 | 2023-12-05 | 张兆飞 | Negative pressure suction eyelid retractor for cataract operation |
-
2023
- 2023-06-30 CN CN202310797164.0A patent/CN116672008A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117159056A (en) * | 2023-09-26 | 2023-12-05 | 张兆飞 | Negative pressure suction eyelid retractor for cataract operation |
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