CN112155609A - Optic nerve sample collector - Google Patents
Optic nerve sample collector Download PDFInfo
- Publication number
- CN112155609A CN112155609A CN202011039349.8A CN202011039349A CN112155609A CN 112155609 A CN112155609 A CN 112155609A CN 202011039349 A CN202011039349 A CN 202011039349A CN 112155609 A CN112155609 A CN 112155609A
- Authority
- CN
- China
- Prior art keywords
- optic nerve
- handle
- driving handle
- handheld part
- handheld
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 210000001328 optic nerve Anatomy 0.000 title claims abstract description 95
- 210000005252 bulbus oculi Anatomy 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000000670 limiting effect Effects 0.000 claims abstract description 12
- 238000010008 shearing Methods 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 7
- 210000000744 eyelid Anatomy 0.000 description 5
- 210000000795 conjunctiva Anatomy 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 210000001519 tissue Anatomy 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000001508 eye Anatomy 0.000 description 3
- 210000003195 fascia Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 206010014801 endophthalmitis Diseases 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000007917 intracranial administration Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 201000000582 Retinoblastoma Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 210000003161 choroid Anatomy 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 210000004087 cornea Anatomy 0.000 description 1
- 210000003792 cranial nerve Anatomy 0.000 description 1
- 208000035250 cutaneous malignant susceptibility to 1 melanoma Diseases 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 201000001441 melanoma Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 description 1
- 210000003977 optic chiasm Anatomy 0.000 description 1
- 210000001525 retina Anatomy 0.000 description 1
- 210000004881 tumor cell Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention provides an optic nerve specimen collector which comprises a body, a limiting assembly and a shearing assembly, wherein the body comprises a first handle and a second handle which are connected through a hinge piece, the first handle comprises a first handheld part and a first extending part, the second handle comprises a second handheld part and a second extending part, an included angle is formed between the first handheld part and the second handheld part in the state that the first extending part is attached to the second extending part, and the free end of the second extending part is connected with an eyeball bracket; the limiting assembly comprises a driving handle and an elastic piece, the first end of the driving handle can be rotatably connected with the first handheld part, the elastic piece is connected to the second handheld part, and the second end of the driving handle is connected with the elastic piece; the shearing assembly comprises a linkage mechanism and scissors, wherein the first end of the linkage mechanism is connected with the scissors, and the second end of the linkage mechanism is connected with the driving handle. The invention can carry out reasonable parameter configuration according to different animal species to accurately control the optic nerve acquisition length.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an optic nerve specimen collector.
Background
The optic nerve is the second pair of cranial nerves in humans, originating at the optic disc, ending at the optic chiasm, and responsible for transmitting visual information. The optic nerve is a part of the central nervous system, and visual information obtained by the retina is transmitted to the brain through the optic nerve, which is a necessary route for the transmission of the visual information into the optic center, and the total length is about 42 mm-47 mm. It can be divided into four segments, i.e. intrabulbar segment, intraorbital segment, intraductal segment and intracranial segment, according to the course of optic nerve. Wherein the intrabulbar segment extends from the optic disc to the scleral choroid canal and comprises the optic disc and the lamina cribrosa portion, and is about 1mm long; the intraorbital segment is from the eyeball to the orbital part of the optic nerve tube, has the total length of 25 mm-35 mm, and is bent in an S shape in the orbit to ensure that the eyeball freely rotates without being restricted; the tube inner segment is a part passing through the osseous optic nerve tube and is about 6mm long; the intracranial segment is from the entrance of the cranial cavity to the visual cross, and is about 10mm long.
In clinic, patients with certain intraocular tumors (such as retinoblastoma or malignant melanoma) and severe endophthalmitis cannot control the disease in the later stage, and need to perform an eye removal operation. In order to completely eliminate the influence of the affected eye on the body, it is necessary to cut off the optic nerve (the optic nerve portion with the eyeball) as much as possible so as to prevent tumor cells or inflammation from entering the cranium along the optic nerve. When the donated cornea is taken, the conjunctiva is opened by the traditional method, the optic nerve is cut off by applying the curved scissors after four rectus muscles are cut off, and the optic nerve behind a sphere with the diameter of 5 mm-10 mm at most can be reserved. In animal experiments, the same problem is encountered, and the conventional method cannot collect enough optic nerve samples.
However, in the clinical field, for patients who need to perform an eye ball extirpation operation on malignant intraocular tumors or severe endophthalmitis, the greater the scope of optic nerve excision, the safer the optic nerve excision is; in the field of experiments, the research of optic nerves has great significance for the diagnosis and treatment of optic nerve related diseases. Whether can obtain more optic nerve sample is the key of studying, but at present the traditional art can only gather the optic nerve of the 5mm ~ 10mm length of connecting the eyeball, this has restricted research's scope and accuracy greatly, has reduced the possibility of making continuous tissue section in the research simultaneously, has increased research expense, and the eyeball structure is very meticulous, requires that instrument operating range obtains accurate control, every poor 1mm can all influence the effect of sample collection greatly.
Disclosure of Invention
The invention aims to provide an optic nerve sample collector capable of accurately controlling optic nerve collection length.
In order to achieve the above object, the present invention provides an optic nerve specimen collector, which comprises:
the body comprises a first handle and a second handle which are connected through a hinge piece, the first handle comprises a first handheld part and a first extending part, the second handle comprises a second handheld part and a second extending part, the first handheld part and the second handheld part are arranged oppositely, the first extending part and the second extending part are arranged oppositely, the hinge piece is positioned between the first handheld part and the first extending part, an included angle is formed between the first handheld part and the second handheld part when the first extending part and the second extending part are jointed, and the free end of the second extending part is connected with an eyeball bracket;
the limiting assembly comprises a driving handle and an elastic piece, the driving handle is arc-shaped, a first end of the driving handle can be rotatably connected with the first handheld part, the elastic piece is connected to the second handheld part, and an outer arc surface of a second end of the driving handle is connected with the elastic piece;
the shearing assembly comprises a linkage mechanism and scissors, the scissors are located at the free end of the first stretching-in part, the first end of the linkage mechanism is connected with the scissors, the second end of the linkage mechanism is connected with the driving handle, the linkage mechanism can be driven to move by the rotation of the driving handle, and the scissors can be driven to open and close by the movement of the linkage mechanism.
The optic nerve specimen collector is characterized in that the elastic piece is a spring piece, and two ends of the spring piece are movably connected with the second holding part.
As above optic nerve sample collector, wherein, be equipped with the spout in the handheld portion of second, the both ends of spring leaf all are connected with the slider, the slider set up in the spout and can follow the spout slides.
The optic nerve specimen collector is characterized in that the second end of the driving handle is connected with the spring piece through a rivet.
As above optic nerve sample collector, wherein, link gear includes conduction pole, first connecting rod and second connecting rod, the first end of conduction pole can be pivoted with the drive handle meets, the first end of first connecting rod the first end of second connecting rod with the second end of conduction pole meets through the linkage pivot, the second end of first connecting rod with the second end of second connecting rod respectively can the pivoted with two cutting edges of scissors meet.
As above optic nerve sample collector, wherein, first portion of stretching into is equipped with the installation passageway, what conduction pole can move wears to locate installation passageway.
The optic nerve specimen collector is characterized in that the free end of the first extending part is connected with a sheath which can be sleeved outside the first connecting rod and the second connecting rod.
The optic nerve specimen collector is characterized in that the eyeball bracket is Y-shaped.
The optic nerve specimen collector as described above, wherein the free end of the first hand-held portion and the free end of the second hand-held portion are both connected with finger rings.
The optic nerve specimen collector is characterized in that the hinge is a pin shaft.
Compared with the prior art, the invention has the following advantages:
according to the optic nerve specimen collector, the opening distance between the first extending part and the second extending part can be accurately controlled by arranging the limiting assembly, the operation is simple and convenient, the optic nerve collection length can be accurately controlled by reasonably configuring parameters according to different animal types, the aim of collecting optic nerve tissues in a tube as much as possible is further fulfilled, and the optic nerve specimen collector can naturally recover to a closed state after optic nerves are cut off by arranging the elastic piece;
according to the optic nerve specimen collector, the eyeball bracket is Y-shaped, so that the free end of the eyeball bracket can well capture and fix optic nerves, and the operation of cutting off the optic nerves is simpler and more convenient under the condition of not damaging the optic nerves.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a schematic perspective view of an optic nerve specimen collector according to the present invention;
FIG. 2 is a schematic view of a perspective structure of an optic nerve specimen collector;
FIG. 3 is a schematic view of the first handle;
FIG. 4 is an enlarged view of the portion A of FIG. 3;
FIG. 5 is a schematic view of the second handle;
FIG. 6 is an enlarged view of the portion B of FIG. 5;
FIG. 7 is a schematic view of an assembled configuration of the stop assembly and the shear assembly;
FIG. 8 is an enlarged view of the portion C of FIG. 7;
FIG. 9 is an enlarged view of the portion D of FIG. 7;
FIG. 10 is a schematic structural view of a first usage state of the optic nerve specimen collector;
FIG. 11 is a schematic structural view of an optic nerve specimen collector in a second use state;
FIG. 12 is a schematic structural view of the optic nerve specimen collector after sliding into the eyeball;
FIG. 13 is an enlarged view of section E of FIG. 12;
FIG. 14 is a schematic structural view of the optic nerve specimen collector after lifting the eyeball;
FIG. 15 is an enlarged view of the portion F of FIG. 14;
FIG. 16 is a schematic structural diagram of an optic nerve specimen collector cutting optic nerve;
fig. 17 is an enlarged schematic view of the portion G in fig. 16.
The reference numbers illustrate:
10. a body;
100. a first handle; 110. a first hand-held section; 111. a ring; 120. a first extending portion; 121. installing a channel; 122. a sheath; 130. a protrusion;
200. a second handle; 210. a second hand-held section; 211. a chute; 220. a second extending portion; 230. a slot; 240. an eyeball holder;
300. an articulation member;
400. a limiting component; 410. a drive handle; 420. an elastic member; 421. a slider; 422. riveting;
500. a shear assembly; 510. a linkage mechanism; 511. a conductive rod; 512. a first link; 513. a second link; 514. a linkage rotating shaft; 520. scissors; 521. a blade; 522. a scissor shaft;
600. an optic nerve canal; 610. the optic nerve;
700. an orbit;
800. the eyeball.
Detailed Description
In order to clearly understand the technical solution, the purpose and the effect of the present invention, a detailed description of the present invention will be described with reference to the accompanying drawings. Where the adjective or adverbial modifiers "inner" and "outer" are used merely to facilitate relative reference between groups of terms, and do not describe any particular directional limitation on the modified terms. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of such features.
As shown in fig. 1 and 2, the present invention provides an optic nerve specimen collector, which comprises a body 10, a limiting assembly 400 and a cutting assembly 500, wherein:
the body 10 comprises a first handle 100 and a second handle 200 connected by a hinge 300, the first handle 100 comprises a first handheld portion 110 and a first extending portion 120, the second handle 200 comprises a second handheld portion 210 and a second extending portion 220, the first handheld portion 110 and the second handheld portion 210 are oppositely arranged, the first extending portion 120 and the second extending portion 220 are oppositely arranged, the first handheld portion 110 and the second handheld portion 210 are used for being held by an operator, the first extending portion 120 and the second extending portion 220 can extend into the eye, the hinge 300 is positioned between the first handheld portion 110 and the first extending portion 120, namely the first handle 100 and the second handle 200 are oppositely arranged, the hinge 300 is connected to the middle portions of the first handle 100 and the second handle 200, and in a state that the first extending portion 120 and the second extending portion 220 are attached, the first handheld portion 110 and the second handheld portion 210 have an included angle therebetween, the first handheld portion 110 and the first handheld portion 210 move in an opposite direction, the first extending part 120 is separated from the second extending part 220, the free end of the second extending part 220 is connected with an eyeball carrier 240, and the surface of the eyeball carrier 240, which faces away from the first handle 100, is a cambered surface matched with an eyeball, so that the eyeball carrier 240 can be attached to the radian of the back of the eyeball, and therefore, the eyeball carrier 240 can stably support the eyeball in the collecting process;
the limiting assembly 400 comprises a driving handle 410 and an elastic member 420, the driving handle 410 is arc-shaped, a first end of the driving handle 410 is rotatably connected with the first holding part 110, an inner arc surface of the driving handle 410 is arranged towards the first holding part 110, the elastic member 420 is connected to the second holding part 210, an outer arc surface of a second end of the driving handle 410 is connected with the elastic member 420, when the first holding part 110 and the second holding part 210 move towards each other by applying force, the driving handle 410 firstly presses the elastic member 420, the first extending part 120 is separated from the second extending part 220, when the elastic member 420 is compressed to the limit, the first holding part 110 and the second holding part 210 cannot move towards each other, the first extending part 120 is separated from the second extending part 220 by a preset distance, force for moving the first holding part 110 and the second holding part 210 towards each other is continuously applied, at this time, under the limiting effect of the elastic member 420, the driving handle 410 rotates towards the first holding part 110, the angle of the included angle between the first hand-held part 110 and the second hand-held part 210 can be adjusted by adjusting the positions of the driving handle 410 and the elastic member 420 in the state that the first extending part 120 and the second extending part 220 are attached to each other;
the cutting assembly 500 includes a linkage 510 and scissors 520, the scissors 520 are configured in the prior art, and will not be described herein again, the scissors 520 are disposed at the free end of the first insertion portion 120, the first end of the linkage 510 is connected to the scissors 520, the second end of the linkage 510 is connected to the driving handle 410, the driving handle 410 is rotated to drive the linkage 510 to move, the movement of the linkage 510 can drive the scissors 520 to open and close for cutting the optic nerve, specifically, the driving handle 410 rotates towards the first holding portion 110 to drive the linkage 510 to move towards the free end of the first holding portion 110, the movement of the linkage 510 drives the two blades 521 of the scissors 520 to close for cutting the optic nerve, the driving handle 410 can rotate towards the second holding portion 210 under the action of the elastic member 420 and drive the linkage 510 to move towards the free end of the first insertion portion 120, the movement of the linkage 510 drives the two blades 521 of the scissors to open, to facilitate the next cutting operation.
When in use, after the eyelid is opened by using the eyelid opener, the limbus and conjunctiva are cut off by 360 degrees, the fascia is separated, and the rectus is cut off, the optic nerve specimen collector firstly slides into the back part of the eyeball from the nasal side in a closed state (as shown in figure 1), and the eyeball bracket 240 is used for fixing the eyeball; when the first hand-held part 110 and the second hand-held part 210 are moved toward each other by applying a force, the first extending part 120 and the second extending part 220 are separated from each other, the driving handle 410 presses the elastic member 420, when the elastic member 420 is compressed to the limit, the first hand-held part 110 and the second hand-held part 210 cannot move toward each other, the first extending part 120 and the second extending part 220 are separated from each other by a predetermined distance (as shown in fig. 10), in the present embodiment, the predetermined distance is 20mm, a force for moving the first hand-held part 110 and the second hand-held part 210 toward each other is continuously applied, at this time, the driving handle 410 is rotated toward the first hand-held part 110 by the restriction of the elastic member 420, the rotation of the driving handle 410 drives the link mechanism 510 to move toward the free end of the first hand-held part 110, the movement of the link mechanism 510 drives the blades 521 of the scissors 520 to close (as shown in fig. 11) to cut the optic nerve, and finally, the force application is stopped, the driving handle 410 is reset under the elastic force of the elastic member 420, and the resetting of the driving handle 410 drives the first holding portion 110 and the second holding portion 210 to reset, that is, the optic nerve specimen collector can naturally return to the closed state.
The specific operation steps of opening the eyelid, cutting the limbus conjunctiva at 360 degrees, separating the fascia and cutting the rectus muscle are the prior art and are not described herein again.
According to the optic nerve specimen collector, the limit assembly 400 is arranged, so that the opening distance between the first stretching part 120 and the second stretching part 220 can be accurately controlled, the operation is simple and convenient, the optic nerve collection length can be accurately controlled by reasonably configuring parameters according to different animal types, the aim of collecting optic nerve tissues in a tube as much as possible is further fulfilled, and the optic nerve specimen collector can naturally recover to a closed state after optic nerves are cut off by arranging the elastic piece 420.
Further, as shown in fig. 5 and 6, the eyeball holder 240 is Y-shaped, so that the free end of the eyeball holder 240 can capture and fix the optic nerve well, and the operation of cutting off the optic nerve is simpler and more convenient.
Further, as shown in fig. 3 and 5, the free ends of the first hand-held portion 110 and the second hand-held portion 210 are connected to the finger rings 111, and the operator can easily and conveniently grip the first hand-held portion 110 and the second hand-held portion 210 with the finger rings 111 to apply force to the first hand-held portion 110 and the second hand-held portion 210 to drive the first hand-held portion 110 and the second hand-held portion 210 to move toward each other.
Further, as shown in fig. 1, the hinge 300 is a pin, specifically, the first handle 100 is provided with a protrusion 130, the second handle 200 is provided with a slot 230, the protrusion 130 is inserted into the slot 230 and can rotate relative to the slot 230, and the pin penetrates through the protrusion 130 and the slot 230 to connect the first handle 100 and the second handle 200.
Of course, hinge 300 may be a screw, bolt, or connecting rivet that connects first handle 100 to second handle 200 and rotates first handle 100 and second handle 200 relative to each other.
In one embodiment of the present invention, as shown in fig. 8, the elastic member 420 is a spring plate, two ends of the spring plate are movably connected to the second holding part 210, and the spring plate is made of steel and has good tensile stiffness and bending stiffness, so that the service life of the optic nerve specimen collector can be ensured. Of course, the elastic member 420 may be a plate spring.
Further, as shown in fig. 2 and 8, a sliding groove 211 is formed in the second handheld portion 210, two ends of the spring plate are connected to sliding blocks 421, and the sliding blocks 421 are disposed in the sliding groove 211 and can slide along the sliding groove 211, so that the spring plate can smoothly move relative to the second handheld portion 210 along with the rotation of the driving handle 410, and the rotation of the driving handle 410 is not affected.
Further, as shown in fig. 7 and 8, the second end of the driving handle 410 is connected to the spring plate by a rivet 422, so that the connection between the driving handle 410 and the spring plate is simple and reliable.
In one embodiment of the present invention, as shown in fig. 7 and 9, the linkage 510 includes a conductive rod 511, a first link 512 and a second link 513, a first end of the conductive rod 511 is rotatably connected to the driving handle 410, specifically, the first end of the conductive rod 511 is rotatably connected to the driving handle 410 through a conductive shaft, a first end of the first link 512, a first end of the second link 513 and a second end of the conductive rod 511 are connected to each other through a linkage rotating shaft 514 such that the first link 512 and the second link 513 can rotate relative to the conductive rod 511, the second end of the first link 512 and the second end of the second link 513 are rotatably connected to the two blades 521 of the scissors 520, specifically, the second end of the first link 512 and the second end of the second link 513 are rotatably connected to the two blades 521 of the scissors 520 through connecting shafts, respectively, the driving handle 410 rotates the conductive rod 511 toward the first hand-held portion 110 and moves toward the free end of the first hand-held portion 110, the movement of the conducting rod 511 drives the first connecting rod 512 and the second connecting rod 513 to move towards each other, the movement of the first connecting rod 512 and the second connecting rod 513 drives the two blades 521 of the scissors 520 to close so as to cut the optic nerve, the driving handle 410 rotates towards the second holding part 210 to drive the conducting rod 511 to move towards the free end of the first extending part 120, the movement of the conducting rod 511 drives the first connecting rod 512 and the second connecting rod 513 to move away from each other, and the movement of the first connecting rod 512 and the second connecting rod 513 drives the two blades 521 of the scissors 520 to separate so as to reset the scissors 520.
Further, as shown in fig. 2, the first extending portion 120 is provided with an installation channel 121, the conduction rod 511 can movably penetrate through the installation channel 121, the installation channel 121 can not only limit and guide the movement of the conduction rod 511, but also protect the conduction rod 511, so that the conduction rod 511 can smoothly drive the scissors 520 to open and close.
Further, as shown in fig. 3 and 4, a sheath 122 capable of being sleeved outside the first link 512 and the second link 513 is connected to a free end of the first extending portion 120, and a scissor shaft 522 of the scissors 520 penetrates through the sheath 122, so that the sheath 122 can protect the first link 512 and the second link 513 and limit the position of the scissors 520, and the scissors 520 can be smoothly driven to open and close by the first link 512 and the second link 513.
The use process of the optic nerve specimen collector is described in detail below with reference to the accompanying drawings:
when in use, after the eyelid is opened by using the eyelid opener, the limbus conjunctiva is cut off by 360 degrees, the fascia is separated, and the internal rectus muscle is broken, as shown in fig. 12 and 13, the optic nerve specimen collector slides into the back of the eyeball 800 from the nose side in a closed state, the eyeball carrier 240 is made to fix the eyeball 800, and the free end of the eyeball carrier 240 catches and fixes the optic nerve 610;
as shown in fig. 14 and 15, the first hand-held portion 110 and the second hand-held portion 210 are held by the finger ring 111, and a force is applied to move the first hand-held portion 110 and the second hand-held portion 210 toward each other, at this time, the first extending portion 120 and the second extending portion 220 are separated, the driving handle 410 presses the elastic member 420, when the elastic member 420 is compressed to the maximum, that is, when the elastic member 420 is tightly sandwiched between the outer arc surface of the driving handle 410 and the second hand-held portion 210, the first hand-held portion 110 and the second hand-held portion 210 cannot move toward each other, the first extending portion 120 and the second extending portion 220 are separated by 20mm, as shown in fig. 16 and 17, a force is continuously applied to move the first hand-held portion 110 and the first hand-held portion 210 toward each other, at this time, the driving handle 410 is rotated toward the first hand-held portion 110 by the restriction of the elastic member 420, and the rotation driving rod 511 of the driving handle 410 moves toward the free end of the first hand-held portion 110, the movement of the conducting rod 511 drives the first connecting rod 512 and the second connecting rod 513 to move towards each other, and under the limiting and guiding effects of the sheath 122, the movement of the first connecting rod 512 and the second connecting rod 513 drives the two blades 5211 of the scissors 520 to close, so as to cut the optic nerve 610 with a preset length (20mm) from the eyeball 800 to the orbit 700 of the optic nerve tube 600;
finally, the force application is stopped, the driving handle 410 is reset under the elastic force of the elastic member 420, and the resetting of the driving handle 410 drives the first holding part 110, the second holding part 210 and the shearing assembly 500 to reset, that is, the optic nerve specimen collector naturally restores to the closed state.
It should be noted that, except that the spring pieces are made of steel, other parts of the optic nerve specimen collector are made of nickel-chromium alloy or titanium alloy.
In summary, the optic nerve specimen collector provided by the invention has the advantages that the opening distance between the first extending part and the second extending part can be accurately controlled by arranging the limiting component, the operation is simple and convenient, the optic nerve collection length can be accurately controlled by reasonably configuring parameters according to different animal types, the aim of collecting optic nerve tissues in a tube as much as possible is further realized, and the optic nerve specimen collector can naturally recover to a closed state after optic nerves are cut off by arranging the elastic component;
according to the optic nerve specimen collector, the eyeball bracket is Y-shaped, so that the free end of the eyeball bracket can well capture and fix optic nerves, and the operation of cutting off the optic nerves is simpler and more convenient under the condition of not damaging the optic nerves.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should fall within the protection scope of the invention. It should be noted that the components of the present invention are not limited to the above-mentioned whole application, and various technical features described in the present specification can be selected to be used alone or in combination according to actual needs, so that the present invention naturally covers other combinations and specific applications related to the invention.
Claims (10)
1. An optic nerve sample collector, which is characterized by comprising:
the body comprises a first handle and a second handle which are connected through a hinge piece, the first handle comprises a first handheld part and a first extending part, the second handle comprises a second handheld part and a second extending part, the first handheld part and the second handheld part are arranged oppositely, the first extending part and the second extending part are arranged oppositely, the hinge piece is positioned between the first handheld part and the first extending part, an included angle is formed between the first handheld part and the second handheld part when the first extending part and the second extending part are jointed, and the free end of the second extending part is connected with an eyeball bracket;
the limiting assembly comprises a driving handle and an elastic piece, the driving handle is arc-shaped, a first end of the driving handle can be rotatably connected with the first handheld part, the elastic piece is connected to the second handheld part, and an outer arc surface of a second end of the driving handle is connected with the elastic piece;
the shearing assembly comprises a linkage mechanism and scissors, the scissors are located at the free end of the first stretching-in part, the first end of the linkage mechanism is connected with the scissors, the second end of the linkage mechanism is connected with the driving handle, the linkage mechanism can be driven to move by the rotation of the driving handle, and the scissors can be driven to open and close by the movement of the linkage mechanism.
2. An optic nerve specimen collector according to claim 1,
the elastic piece is a spring piece, and two ends of the spring piece can be movably connected with the second handheld part.
3. An optic nerve specimen collector according to claim 2,
the second handheld part is provided with a sliding groove, the two ends of the spring piece are both connected with sliding blocks, and the sliding blocks are arranged in the sliding groove and can slide along the sliding groove.
4. An optic nerve specimen collector according to claim 2,
the second end of the driving handle is connected with the spring piece through a rivet.
5. An optic nerve specimen collector according to claim 1,
the linkage mechanism comprises a conduction rod, a first connecting rod and a second connecting rod, wherein the first end of the conduction rod can rotate and is connected with the driving handle, the first end of the first connecting rod, the first end of the second connecting rod and the second end of the conduction rod are connected through a linkage rotating shaft, and the second end of the first connecting rod and the second end of the second connecting rod can rotate respectively and are connected with two cutting edges of the scissors.
6. An optic nerve specimen collector according to claim 5,
the first portion of stretching into is equipped with the installation passageway, what the conduction pole can remove wears to locate the installation passageway.
7. An optic nerve specimen collector according to claim 5,
the free end of the first stretching-in part is connected with a sheath which can be sleeved outside the first connecting rod and the second connecting rod.
8. An optic nerve specimen collector according to any one of claims 1 to 7,
the eyeball bracket is Y-shaped.
9. An optic nerve specimen collector according to any one of claims 1 to 7,
the free end of the first handheld part and the free end of the second handheld part are both connected with finger rings.
10. An optic nerve specimen collector according to any one of claims 1 to 7,
the articulated elements are pin shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011039349.8A CN112155609B (en) | 2020-09-28 | 2020-09-28 | Optic nerve specimen collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011039349.8A CN112155609B (en) | 2020-09-28 | 2020-09-28 | Optic nerve specimen collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112155609A true CN112155609A (en) | 2021-01-01 |
| CN112155609B CN112155609B (en) | 2025-02-21 |
Family
ID=73861271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011039349.8A Active CN112155609B (en) | 2020-09-28 | 2020-09-28 | Optic nerve specimen collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112155609B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4574804A (en) * | 1984-02-27 | 1986-03-11 | Board Of Regents, The University Of Texas System | Optic nerve clamp |
| US20110184459A1 (en) * | 2008-08-04 | 2011-07-28 | Malkowski Jaroslaw T | Articulating Surgical Device |
| DE102010060900A1 (en) * | 2010-11-30 | 2012-05-31 | Bryan Arthurs | Surgical instrument for enucleation that describes surgical removal of complete eyeball of patient, has scissors with shell for support of eyeball, and lifting mechanism provided for shell provided with lifting rod |
| CN102791218A (en) * | 2010-02-08 | 2012-11-21 | 直观外科手术操作公司 | Direct pull surgical gripper |
| CN203885708U (en) * | 2014-05-30 | 2014-10-22 | 复旦大学附属中山医院青浦分院 | Eyeball enucleation tool |
| CN104822347A (en) * | 2012-10-04 | 2015-08-05 | 艾瑞黛克斯公司 | Fasteners, deployment systems, and methods for ophthalmic tissue closure and fixation of ophthalmic prostheses and other uses |
| CN105105824A (en) * | 2015-07-13 | 2015-12-02 | 天津大学 | Surgical scissors with ultrasonic probe |
| CN205459334U (en) * | 2016-01-07 | 2016-08-17 | 广州中大南沙科技创新产业园有限公司 | Novel biological eyeball of xenogenesis is taken device |
| CN107456257A (en) * | 2016-06-04 | 2017-12-12 | 朱爱茹 | A kind of dept. of dermatology wart body cutter device |
| CN206836935U (en) * | 2016-12-13 | 2018-01-05 | 武汉金柏威光电技术有限公司 | A kind of neural microscissors |
| CN207136953U (en) * | 2017-02-24 | 2018-03-27 | 中国人民解放军第四军医大学 | A kind of combined type optic nerve clamp is cut |
| CN108247685A (en) * | 2018-03-30 | 2018-07-06 | 兰玲 | A kind of medical safe scissors |
| CN109998642A (en) * | 2019-05-07 | 2019-07-12 | 常熟市谷雷特机械产品设计有限公司 | A kind of medical field tissue cutting scissors |
| CN213821516U (en) * | 2020-09-28 | 2021-07-30 | 中国人民解放军总医院 | Optic nerve sample collector |
-
2020
- 2020-09-28 CN CN202011039349.8A patent/CN112155609B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4574804A (en) * | 1984-02-27 | 1986-03-11 | Board Of Regents, The University Of Texas System | Optic nerve clamp |
| US20110184459A1 (en) * | 2008-08-04 | 2011-07-28 | Malkowski Jaroslaw T | Articulating Surgical Device |
| CN102791218A (en) * | 2010-02-08 | 2012-11-21 | 直观外科手术操作公司 | Direct pull surgical gripper |
| DE102010060900A1 (en) * | 2010-11-30 | 2012-05-31 | Bryan Arthurs | Surgical instrument for enucleation that describes surgical removal of complete eyeball of patient, has scissors with shell for support of eyeball, and lifting mechanism provided for shell provided with lifting rod |
| CN104822347A (en) * | 2012-10-04 | 2015-08-05 | 艾瑞黛克斯公司 | Fasteners, deployment systems, and methods for ophthalmic tissue closure and fixation of ophthalmic prostheses and other uses |
| CN203885708U (en) * | 2014-05-30 | 2014-10-22 | 复旦大学附属中山医院青浦分院 | Eyeball enucleation tool |
| CN105105824A (en) * | 2015-07-13 | 2015-12-02 | 天津大学 | Surgical scissors with ultrasonic probe |
| CN205459334U (en) * | 2016-01-07 | 2016-08-17 | 广州中大南沙科技创新产业园有限公司 | Novel biological eyeball of xenogenesis is taken device |
| CN107456257A (en) * | 2016-06-04 | 2017-12-12 | 朱爱茹 | A kind of dept. of dermatology wart body cutter device |
| CN206836935U (en) * | 2016-12-13 | 2018-01-05 | 武汉金柏威光电技术有限公司 | A kind of neural microscissors |
| CN207136953U (en) * | 2017-02-24 | 2018-03-27 | 中国人民解放军第四军医大学 | A kind of combined type optic nerve clamp is cut |
| CN108247685A (en) * | 2018-03-30 | 2018-07-06 | 兰玲 | A kind of medical safe scissors |
| CN109998642A (en) * | 2019-05-07 | 2019-07-12 | 常熟市谷雷特机械产品设计有限公司 | A kind of medical field tissue cutting scissors |
| CN213821516U (en) * | 2020-09-28 | 2021-07-30 | 中国人民解放军总医院 | Optic nerve sample collector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112155609B (en) | 2025-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213821516U (en) | Optic nerve sample collector | |
| US8262682B2 (en) | Nucleus chopper and splitter | |
| AU776599B2 (en) | Device for improving the aqueous humour outflow in the eye of a living thing | |
| DE69818043T2 (en) | SURGICAL MICROTOMAS | |
| EP1596719B1 (en) | Abrasion device | |
| JP2003526461A (en) | Sutureless eye surgery method and instrument for use in such method | |
| CN110151256B (en) | Microsurgical holding and/or cutting instrument | |
| JPH06269458A (en) | Medical forceps | |
| CN108969037B (en) | Safety eyelid retractor for ophthalmology examination and operation | |
| CN106725732B (en) | Linkage cutting pliers for operation | |
| CN112155609A (en) | Optic nerve sample collector | |
| US9622727B2 (en) | Tissue sampling device | |
| CN210811359U (en) | Gynaecology and obstetrics's operation pincers of arbitrary angle pivoted | |
| WO2016025166A1 (en) | Endoscopic biopsy one-way trap | |
| EP3058906A1 (en) | Auditory sensitivity regulating device | |
| US10105155B2 (en) | Endoscopic instrument | |
| CN221044985U (en) | Biopsy forceps head rotating structure | |
| CN113995569A (en) | A integrative device of scissors hemostasis for extraocular muscle cuts off operation | |
| CN221539867U (en) | Eyelash trimming means is used in nursing | |
| US7927289B2 (en) | Catheter capable of being equipped with micro biopsy tool | |
| KR102631045B1 (en) | Punching type iridectomy device | |
| CN219250285U (en) | Blade replaceable double-hinge parallel traction eyelid retractor | |
| CN212825520U (en) | An eye care eyelash trimming device | |
| BR112021006021A2 (en) | epilating device for epilating hair or hair that grows from the skin and epilating device | |
| CN116942226B (en) | Lacrimal retractor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |