CN113041018B - Eyeball vitreous body cutting treatment system - Google Patents
Eyeball vitreous body cutting treatment system Download PDFInfo
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- CN113041018B CN113041018B CN202011333597.3A CN202011333597A CN113041018B CN 113041018 B CN113041018 B CN 113041018B CN 202011333597 A CN202011333597 A CN 202011333597A CN 113041018 B CN113041018 B CN 113041018B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 69
- 210000004127 vitreous body Anatomy 0.000 title claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 35
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- 208000030533 eye disease Diseases 0.000 claims abstract description 11
- 230000004410 intraocular pressure Effects 0.000 claims abstract description 9
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
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- Ophthalmology & Optometry (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to an eyeball vitreous body cutting treatment system, which comprises: the intraocular pressure detection mechanism is embedded in the fundus position of the eye disease patient and is used for detecting the fundus pressure of the eye disease patient in real time when the vitreous body cutting operation is executed; the content analysis equipment is used for sending out an instruction for stopping the operation when the received eye pressure exceeds a preset pressure threshold value; a vitreous body cutter includes a cutting port whose shape of a notch for performing cutting of a vitreous body is corrected by a notch correcting mechanism, and a power supply mechanism. The eyeball vitreous cutting treatment system is reliable in logic and stable in operation. Since the shape of the incision for performing vitreous humor cutting is corrected based on the geometry of the eyeball so as to match the two before performing vitreous humor cutting of the eye portion, it is also decided whether or not to interrupt the cutting operation of the vitreous humor of the eye portion based on the specific value of the pressure of the fundus when performing vitreous humor cutting of the eye portion, thereby avoiding the occurrence of medical accidents.
Description
Technical Field
The invention relates to the field of vitreous body cutting, in particular to an eyeball vitreous body cutting treatment system.
Background
The vitreous body is a semisolid colloidal substance in the eye and is filled in the vitreous cavity. Normally, the vitreous has good light transmission to allow the retina to adhere to the choroid. If the vitreous body is diseased, a light person can feel that mosquitoes fly in front of eyes when seeing the vitreous body, a heavy person can completely shield light rays to lose sight, and peripheral tissue diseases such as retinal detachment and the like can be caused, so that the whole eyeball is damaged.
The basic functions of vitrectomy are to remove turbid vitreous or to remove vitreoretinal traction, restore clear refractive interstitium and promote retinal replacement, and to treat vitreoretinal disease to restore visual function to the patient.
The advantages of vitrectomy are apparent as a highly accurate surgical procedure for ophthalmology. Specifically, the vitrectomy procedure has the following advantages:
1. the vitrectomy is performed under local anesthesia, the wound is small, the safety is high, and the range of operation indications is wide;
2. with the progress of society and the aggravation of aging process, the number of age-related macular lesions is increased, and meanwhile, more and more myopic patients and diabetic patients are caused, and the number of vitreoretinal diseases is increased; the vitrectomy can greatly improve the symptoms of the patients, and avoid more blindness or eyeball atrophy caused by the disease;
3. by removing turbid or organized vitreous body, pus and hematocele, bacteria and toxin can be removed, and refractive interstitial transparency in the vitreous body cavity can be recovered;
4. the foreign matters are accurately taken out under direct vision, blindness is avoided, and damage to surrounding tissues is reduced to the lowest point;
5. can improve the foreign body taking-out rate in the vitreous cavity, and can simultaneously take out a plurality of or various foreign bodies, particularly non-magnetic foreign bodies, wrapping foreign bodies, retina incarceration foreign bodies and the like.
Disclosure of Invention
The invention has at least the following two key points:
(1) before performing cutting of a vitreous body of an eye, correcting a shape of a cut performed for the vitreous body cutting based on a geometric shape of an eyeball so as to match the two;
(2) when cutting of vitreous body of eye portion is performed, whether to interrupt cutting operation of vitreous body of eye portion is decided based on specific numerical value of pressure of fundus, thereby avoiding occurrence of medical accident.
According to an aspect of the present invention, there is provided an eyeball vitreous cutting treatment system, the system comprising:
the intraocular pressure detection mechanism is embedded in the fundus position of the eye disease patient and is used for detecting the fundus pressure of the eye disease patient in real time when the vitreous body cutting operation is performed.
More specifically, the vitreous cutting treatment system according to the present invention further comprises:
the content analysis equipment is connected with the intraocular pressure detection mechanism and is used for sending out an operation stopping instruction when the received eye pressure exceeds a preset pressure threshold value;
wherein the content analysis device is further configured to issue a continue surgery instruction when the received eye pressure does not exceed the preset pressure threshold.
More specifically, the vitreous cutting treatment system according to the present invention further comprises:
a vitreous body cutter including a cutting port and a power supply mechanism, the cutting port being connected to a notch correcting mechanism, the shape of a notch of which cutting of a vitreous body is performed being corrected by the notch correcting mechanism;
the power supply mechanism is connected with the content analysis equipment and is used for cutting off power supply lines for all power utilization parts of the vitreous cutter when receiving an instruction for stopping the operation;
an incision correction mechanism connected to the shape recognition device for correcting the shape of an incision for performing vitreous body cutting based on an eyeball geometric shape so that the shape of the incision coincides with the eyeball geometric shape but is smaller in proportion than the eyeball geometric shape;
the needle point type acquisition instrument is used for acquiring image data of a vitreous body of a patient with an eye disease when a vitreous body cutting operation is to be performed so as to obtain an eye acquisition image;
the gradient filtering equipment is connected with the needle-tip type acquisition instrument and is used for performing gradient sharpening filtering processing on the received eye acquisition image so as to obtain and output a corresponding gradient filtering image;
the smoothing device is connected with the gradient filtering device and is used for executing the blur processing without the scaling transformation on the received gradient filtering image so as to obtain and output a corresponding smoothing processing image;
the index enhancement device is connected with the smoothing processing device and is used for carrying out image content enhancement processing based on index transformation on the received smoothing processing image so as to obtain and output a corresponding index enhanced image;
the eyeball analysis mechanism is connected with the index enhancement equipment and is used for acquiring the gray value of each pixel point of the index enhancement image and taking the pixel points of which the gray values fall in the eyeball gray upper limit threshold and the eyeball gray lower limit threshold as eyeball pixel points;
the shape recognition equipment is connected with the eyeball analysis mechanism and used for determining the corresponding eyeball geometric shape based on the distribution shape of each eyeball pixel point in the index enhanced image;
wherein making the shape of the incision conform to the eyeball geometry but proportionally smaller than the eyeball geometry comprises: when the eyeball geometric shape is rectangular, the length-width ratio of the incision is made to be consistent with the length-width ratio of the eyeball geometric shape.
The eyeball vitreous cutting treatment system is reliable in logic and stable in operation. Since the shape of the incision for performing vitreous humor cutting is corrected based on the geometry of the eyeball so as to match the two before performing vitreous humor cutting of the eye portion, it is also decided whether or not to interrupt the cutting operation of the vitreous humor of the eye portion based on the specific value of the pressure of the fundus when performing vitreous humor cutting of the eye portion, thereby avoiding the occurrence of medical accidents.
Drawings
Embodiments of the invention will now be described with reference to the accompanying drawings, in which:
fig. 1 is a schematic view illustrating a position of a vitreous body to which an eyeball vitreous body cutting treatment system is applied according to an embodiment of the present invention.
Detailed Description
Embodiments of the vitreous cutting treatment system according to the present invention will be described in detail with reference to the accompanying drawings.
The eyeball is the main part of the visual apparatus, located in the orbit, and the posterior end is connected to the diencephalon by the optic nerve. The eyeball of a human is approximately spherical, and the front and back diameters are about 24-25 mm. The median point of cornea in front of eyeball is anterior pole, the median point of sclera at back is posterior pole, and the straight line connecting anterior and posterior poles is extraocular axis.
The line from the anterior intracorneal surface pole to the posterior intracorneal surface pole is the intraocular axis, which is about 22mm long and is collectively called the axis of the eye by the extension of the intraocular and extraocular axes. The circular line around the surface of the eyeball at each point equidistant from the anterior and posterior poles is called the equator or equator. The line through the center of the pupil to the fovea maculae is the visual axis. The visual axis intersects the eye axis at an angle of about 5. The eyeball consists of the wall of the eyeball and transparent contents. The dioptric system of the eyeball comprises a cornea, aqueous humor, a crystalline lens and a vitreous body; the photosensitive system is formed by an outer, a middle and an inner three-layer film on the wall of the eyeball.
Currently, for patients with severe muscae volitantes or vitreous opacity, certain therapeutic effects can be achieved by cutting and replacing the filling of the interior vitreous, which occupies eighty percent of the eyeball. However, in the actual treatment process, abnormality of parameters such as intraocular pressure affects the treatment effect, and the incision needs to be matched with the eyeball shape as much as possible to reduce the opening area of the incision.
In order to overcome the defects, the invention builds the eyeball vitreous body cutting treatment system and can effectively solve the corresponding technical problem.
Fig. 1 is a schematic view illustrating a position of a vitreous body to which an eyeball vitreous body cutting treatment system is applied according to an embodiment of the present invention.
An eyeball vitreous cutting treatment system shown according to an embodiment of the invention comprises:
the intraocular pressure detection mechanism is embedded in the fundus position of the eye disease patient and is used for detecting the fundus pressure of the eye disease patient in real time when the vitreous body cutting operation is performed.
Next, a detailed description of the structure of the vitreous humor cutting treatment system of the present invention will be further described.
In the vitreous cutting treatment system, further comprising:
the content analysis equipment is connected with the intraocular pressure detection mechanism and is used for sending out an operation stopping instruction when the received eye pressure exceeds a preset pressure threshold value;
wherein the content analysis device is further configured to issue a continue surgery instruction when the received eye pressure does not exceed the preset pressure threshold.
In the vitreous cutting treatment system, further comprising:
a vitreous body cutter including a cutting port and a power supply mechanism, the cutting port being connected to a notch correcting mechanism, the shape of a notch of which cutting of a vitreous body is performed being corrected by the notch correcting mechanism;
the power supply mechanism is connected with the content analysis equipment and is used for cutting off power supply lines for all power utilization parts of the vitreous cutter when receiving an instruction for stopping the operation;
an incision correction mechanism connected to the shape recognition device for correcting the shape of an incision for performing vitreous body cutting based on an eyeball geometric shape so that the shape of the incision coincides with the eyeball geometric shape but is smaller in proportion than the eyeball geometric shape;
the needle point type acquisition instrument is used for acquiring image data of a vitreous body of a patient with an eye disease when a vitreous body cutting operation is to be performed so as to obtain an eye acquisition image;
the gradient filtering equipment is connected with the needle-tip type acquisition instrument and is used for performing gradient sharpening filtering processing on the received eye acquisition image so as to obtain and output a corresponding gradient filtering image;
the smoothing device is connected with the gradient filtering device and is used for executing the blur processing without the scaling transformation on the received gradient filtering image so as to obtain and output a corresponding smoothing processing image;
the index enhancement device is connected with the smoothing processing device and is used for carrying out image content enhancement processing based on index transformation on the received smoothing processing image so as to obtain and output a corresponding index enhanced image;
the eyeball analysis mechanism is connected with the index enhancement equipment and is used for acquiring the gray value of each pixel point of the index enhancement image and taking the pixel points of which the gray values fall in the eyeball gray upper limit threshold and the eyeball gray lower limit threshold as eyeball pixel points;
the shape recognition equipment is connected with the eyeball analysis mechanism and used for determining the corresponding eyeball geometric shape based on the distribution shape of each eyeball pixel point in the index enhanced image;
wherein making the shape of the incision conform to the eyeball geometry but proportionally smaller than the eyeball geometry comprises: when the eyeball geometric shape is rectangular, the length-width ratio of the incision is made to be consistent with the length-width ratio of the eyeball geometric shape.
In the vitreous cutting treatment system:
making the shape of the incision conform to the eyeball geometry but proportionally smaller than the eyeball geometry comprises: when the eyeball geometric shape is circular, the radius of the incision is smaller than that of the eyeball geometric shape.
In the vitreous cutting treatment system:
and the power supply mechanism is also used for recovering power supply lines for all the power utilization parts of the vitreous cutter when receiving a continuous operation instruction.
In the vitreous cutting treatment system, further comprising:
and the metal radiating fin is arranged near the smoothing processing equipment, is used for being connected with the shell of the smoothing processing equipment and is used for realizing the radiating processing of the smoothing processing equipment.
In the vitreous cutting treatment system:
the gradient filtering equipment, the smoothing processing equipment and the index enhancing equipment are connected with the same quartz oscillation equipment and are used for acquiring time sequence data provided by the quartz oscillation equipment;
the index enhancement equipment is provided with a plurality of radiating holes which are uniformly distributed on a shell of the index enhancement equipment;
wherein the smoothing device is implemented by a field programmable logic device designed based on VHDL language.
In the vitreous cutting treatment system, further comprising:
the pressure sensing equipment is arranged inside the gradient filtering equipment and used for sensing the internal pressure of the gradient filtering equipment;
and the pressure alarm equipment is connected with the pressure sensing equipment and is used for executing corresponding pressure alarm operation when the received internal pressure of the gradient filtering equipment exceeds the limit.
In the vitreous cutting treatment system, further comprising:
the parallel line socket is respectively connected with the signal output ends of the gradient filtering equipment, the smoothing processing equipment and the index enhancing equipment;
the gradient filtering device is internally provided with a serial communication interface and is used for receiving a control signal sent by a user through the serial communication interface.
In the vitreous cutting treatment system, further comprising:
the buzzer is connected with the smoothing processing equipment and is used for executing the alarm action of preset playing frequency when the smoothing processing equipment is in an abnormal state;
the data cache device divides the data cache address into two sections for respectively storing the cache data of the gradient filter device and the smooth processing device;
the data caching device is respectively connected with the gradient filtering device and the smoothing device through a parallel data bus.
In addition, in the vitrectomy therapy system, VHDL is mainly used to describe the structure, behavior, function, and interface of a digital system. Except for the fact that it contains many statements with hardware features, the linguistic form, description style, and syntax of VHDL are very similar to a general computer high-level language. The structural features of the VHDL program are to divide an engineering design, or design entity (which may be a component, a circuit module or a system) into an external (or visible part, and port) and an internal (or invisible part), which relate to the internal functions and algorithm completion of the entity. After an external interface is defined for a design entity, once its internal development is complete, other designs can invoke the entity directly. This concept of dividing the design entity into inner and outer parts is the fundamental point of VHDL system design. VHDL has powerful language structure, and can describe complex logic control by simple and clear source code. The method has a multi-level design description function, is refined layer by layer, and can directly generate circuit level description. VHDL supports the design of synchronous, asynchronous, and random circuits, which is incomparable with other hardware description languages. VHDL also supports various design methods, both bottom-up and top-down; the method supports both modular design and hierarchical design.
It is to be understood that while the present invention has been described in conjunction with the preferred embodiments thereof, it is not intended to limit the invention to those embodiments. It will be apparent to those skilled in the art from this disclosure that many changes and modifications can be made, or equivalents modified, in the embodiments of the invention without departing from the scope of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (7)
1. An eyeball vitreous cutting treatment system, characterized in that the system comprises: the system comprises an intraocular pressure detection mechanism, a content analysis device, a vitreous cutter, a cut correction mechanism, a needle point type acquisition instrument, a gradient filtering device, a smoothing processing device, an index enhancement device, an eyeball analysis mechanism and a shape recognition device; wherein:
the intraocular pressure detection mechanism is embedded in the fundus position of the eye disease patient and is used for detecting the fundus pressure of the eye disease patient in real time when the vitreous body cutting operation is executed;
the content analysis equipment is connected with the intraocular pressure detection mechanism and is used for sending out an operation stopping instruction when the received eye pressure exceeds a preset pressure threshold value;
the content analysis equipment is further used for sending a continuous operation instruction when the received eye pressure does not exceed a preset pressure threshold;
a vitreous body cutter including a cutting port and a power supply mechanism, the cutting port being connected to a notch correcting mechanism, the shape of a notch of which cutting of a vitreous body is performed being corrected by the notch correcting mechanism;
the power supply mechanism is connected with the content analysis equipment and is used for cutting off power supply lines for all power utilization parts of the vitreous cutter when receiving an instruction for stopping the operation;
an incision correction mechanism connected to the shape recognition device for correcting the shape of an incision for performing vitreous body cutting based on an eyeball geometric shape so that the shape of the incision coincides with the eyeball geometric shape but is smaller in proportion than the eyeball geometric shape;
the needle point type acquisition instrument is used for acquiring image data of a vitreous body of a patient with an eye disease when a vitreous body cutting operation is to be performed so as to obtain an eye acquisition image;
the gradient filtering equipment is connected with the needle-tip type acquisition instrument and is used for performing gradient sharpening filtering processing on the received eye acquisition image so as to obtain and output a corresponding gradient filtering image;
the smoothing device is connected with the gradient filtering device and is used for executing the blur processing without the scaling transformation on the received gradient filtering image so as to obtain and output a corresponding smoothing processing image;
the index enhancement device is connected with the smoothing processing device and is used for carrying out image content enhancement processing based on index transformation on the received smoothing processing image so as to obtain and output a corresponding index enhanced image;
the eyeball analysis mechanism is connected with the index enhancement equipment and is used for acquiring the gray value of each pixel point of the index enhancement image and taking the pixel points of which the gray values fall in the eyeball gray upper limit threshold and the eyeball gray lower limit threshold as eyeball pixel points;
the shape recognition equipment is connected with the eyeball analysis mechanism and used for determining the corresponding eyeball geometric shape based on the distribution shape of each eyeball pixel point in the index enhanced image;
wherein making the shape of the incision conform to the eyeball geometry but proportionally smaller than the eyeball geometry comprises: when the eyeball geometric shape is rectangular, the length-width ratio of the incision is made to be consistent with the length-width ratio of the eyeball geometric shape.
2. The vitreous cutting treatment system of claim 1, wherein:
making the shape of the incision conform to the eyeball geometry but proportionally smaller than the eyeball geometry comprises: when the eyeball geometric shape is circular, the radius of the incision is smaller than that of the eyeball geometric shape.
3. The vitreous cutting treatment system of claim 2, wherein:
and the power supply mechanism is also used for recovering power supply lines for all the power utilization parts of the vitreous cutter when receiving a continuous operation instruction.
4. The vitreous cutting treatment system according to claim 3, further comprising:
and the metal radiating fin is arranged near the smoothing processing equipment, is used for being connected with the shell of the smoothing processing equipment and is used for realizing the radiating processing of the smoothing processing equipment.
5. The vitreous cutting treatment system of claim 4, wherein:
the gradient filtering equipment, the smoothing processing equipment and the index enhancing equipment are connected with the same quartz oscillation equipment and are used for acquiring time sequence data provided by the quartz oscillation equipment;
the index enhancement equipment is provided with a plurality of radiating holes which are uniformly distributed on a shell of the index enhancement equipment;
wherein the smoothing device is implemented by a field programmable logic device designed based on VHDL language.
6. The vitreous cutting treatment system of claim 5, further comprising:
the parallel line socket is respectively connected with the signal output ends of the gradient filtering equipment, the smoothing processing equipment and the index enhancing equipment;
the gradient filtering device is internally provided with a serial communication interface and is used for receiving a control signal sent by a user through the serial communication interface.
7. The vitreous cutting treatment system of claim 6, further comprising:
the buzzer is connected with the smoothing processing equipment and is used for executing the alarm action of preset playing frequency when the smoothing processing equipment is in an abnormal state;
the data cache device divides the data cache address into two sections for respectively storing the cache data of the gradient filter device and the smooth processing device;
the data caching device is respectively connected with the gradient filtering device and the smoothing device through a parallel data bus.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104287888A (en) * | 2007-03-13 | 2015-01-21 | 眼科医疗公司 | Apparatus for creating ocular surgical and relaxing incisions |
| CN105813544A (en) * | 2013-11-26 | 2016-07-27 | 诺华股份有限公司 | Pressure-sensing vitrectomy surgical systems and methods |
| CN109152657A (en) * | 2016-05-17 | 2019-01-04 | 诺华股份有限公司 | Automation viscous fluid control in vitrectomy |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040098125A1 (en) * | 2002-11-19 | 2004-05-20 | Freeman Jerre M. | Treatment of eye disorders with scleral implants |
| US20110022037A1 (en) * | 2009-01-06 | 2011-01-27 | Bille Josef F | System and Method for Minimizing the Side Effects of Refractive Corrections Using Line or Dot Cuts for Incisions |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104287888A (en) * | 2007-03-13 | 2015-01-21 | 眼科医疗公司 | Apparatus for creating ocular surgical and relaxing incisions |
| CN105813544A (en) * | 2013-11-26 | 2016-07-27 | 诺华股份有限公司 | Pressure-sensing vitrectomy surgical systems and methods |
| CN109152657A (en) * | 2016-05-17 | 2019-01-04 | 诺华股份有限公司 | Automation viscous fluid control in vitrectomy |
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