TWI583366B - Systems and methods for ocular surgery - Google Patents

Description

System and method for eye surgery Reference related application

This case requests the US Provisional Application No. 61/793, 840, the application date of March 15, 2013 and the US Provisional Application No. 61/935, 595, the application date of February 4, 2014. The contents of the second case are incorporated herein. The disclosure of the specification.

Field of invention

The disclosure herein relates to ophthalmic surgery, and in particular to surgical replacement of the patient's lens.

Background of the invention

In the simple term, the human eye provides vision by transmitting and refracting light through a transparent outer surface called the cornea and focusing the image by the lens to the retina behind the eye. The quality of the focused image depends on many factors including the size, shape, and length of the eyeball to the shape and transparency of the cornea and lens.

When trauma, aging, or disease causes the lens to become less opaque, vision decreases due to reduced light penetration into the retina. The defect of such an eye lens is medically referred to as a cataract. The treatment of such conditions is often Surgery removes the lens and implants the intraocular lens, typically referred to as intraocular lens (IOL).

The IOL often advances through an IOL insertion cassette, causing the IOL to fold and can be folded and inserted into the eye through a relatively small incision. The IOL typically advances through the insertion cassette by a plunger-like device.

Prior to insertion of the IOL, the old lens is typically removed through a process called emulsification of the lens. In phacoemulsification, the crystalline system at one glance is emulsified using an ultrasonic cell phone and extracted from the eye. The extracted flow system is replaced with a perfusion balanced salt solution, thus maintaining the anterior chamber of the eye and cooling the handset. The perfusion fluid and the extraction suction are typically provided by a distal surgical table coupled to the handset via a digital conduit.

Typically, the second stage is required to completely remove the lens because the first stage only picks up the main portion. Thus, after phacoemulsification, a perfusion-extraction probe is used to extract the remaining peripheral cortical material while leaving the posterior capsule intact.

Summary of invention

Various systems, methods, and techniques for eye surgery are disclosed. In some embodiments, a modular handheld system for ophthalmic surgery can include a hand-held lens emulsification unit and a hand-held pump unit. The pumping unit is adapted to provide suction for extracting material through the lens emulsification unit, and includes an adapter coupled to detachably couple the lens emulsification unit to the pump unit to form an integrated Handheld system.

In a particular case, the lens emulsification unit is adapted to receive Suction from a surgical table is used to extract material from one eye.

In some of the present inventions, the adapter is also configured to removably couple the pump unit to the handheld perfusion-extraction unit to form a second integrated handheld system. The pump unit can also provide suction for extraction through the perfusion-extraction unit.

The lens emulsification unit can comprise, for example, a male luer connector, and the adapter can comprise a female luer connector. The luer connectors are engaged by a friction fit.

In some embodiments, a method for ophthalmic surgery may include emulsification of a lens in one eye using a modular hand-held system detachably coupled to a pump unit comprising a lens emulsification unit, and using the lens The suction provided by the pumping unit removes the lens portion from the eye. The method can also include decoupling the phacoemulsification unit from the pump unit, coupling a perfusion-extraction unit to the pump unit to form a second hand-held system, and using the suction provided by the pump unit The eye removes material.

Some may now include polishing the back pocket of the eye using the second system.

Each of the features can now have one or more features. For example, by using a hand-held system with a local pumping unit to remove the diseased lens from one eye, the stability of the eye can be improved during phacoemulsification. Further, since the lens emulsification unit can be detached from the pump unit, another unit can be coupled to the pump unit. For example, a perfusion-extraction unit or a vitrectomy unit can be coupled to the pump unit. The pump unit is thus provided for a plurality of procedures during a surgical procedure and each obtains its advantages.

A variety of other features will be apparent to those skilled in the art from the detailed description and the claims.

100‧‧‧ system

110‧‧‧Lens emulsification unit

120‧‧‧ Body Department

121, 210, 402‧‧‧ shell

122, 212‧‧‧Infusion mouth

124, 128, 132, 137, 149, 214, 217, 222, 225, 236, 244 ‧ ‧ channels

125‧‧‧Resonator

126, 148‧‧‧ wire tube

127‧‧‧ corner

129, 219‧‧ ‧ male luer connector

130‧‧‧ distal end assembly

131, 220‧‧ ‧ sleeve

133, 136, 223, 227‧‧ arrows

134‧‧‧Surgical tip

135‧‧‧ far section

End of 138‧‧‧

139‧‧‧埠口

140, 300‧‧ ‧ pump unit

142, 312‧‧‧ ontology

144‧‧‧ motor

146‧‧‧ pump

150‧‧‧ suction mouth

152, 328‧‧‧ Adapter

152, 158, 230, 234‧‧ ‧ near end

154‧‧‧Female Luer connector

156, 160, 226, 232, 242, 313‧‧ ‧ remote

200‧‧‧Perfusion-extraction (I/A) unit

211‧‧‧ Inserts

221‧‧‧ recess

231‧‧‧ tip

238‧‧‧ extraction channel

240‧‧‧ annular space

246‧‧‧Infusion channel

248‧‧‧ distal opening

310‧‧‧ Drive Department

314‧‧‧ slot

315‧‧‧lateral department

316‧‧‧Rotor

318‧‧‧ catheter

320‧‧‧ pumping department

322‧‧‧ Shell

324‧‧‧ inner shell

326‧‧‧ Elastomer pumping segment

327‧‧‧Integrated catheter

330‧‧‧ fluid inlet

332‧‧‧Internal channel

400‧‧‧Surgical machine

402‧‧‧Chassis

404‧‧‧ computer system

406‧‧‧ display

408‧‧‧foot switch system

410‧‧‧foot switch

412‧‧‧Flow Control Technology System

413‧‧‧ pipeline

414‧‧‧ fluid storage tank

416‧‧‧Fluid control device

418‧‧‧Gas mechanics system

500‧‧‧ method

504-524‧‧‧ operation

1 is a cross-sectional view of one embodiment of a system for eye surgery.

2 is a cross-sectional view of an example perfusion-extraction unit for eye surgery.

Figure 3A shows a perspective view of an example pump unit for an eye surgery.

3B is an exploded cross-sectional view of the example pump unit of FIG. 3A.

Figure 4 shows an example surgical machine for eye surgery.

Figure 5 is a flow chart illustrating an exemplary method for eye surgery.

Detailed description of the preferred embodiment

FIG. 1 illustrates an example system 100 for eye surgery. System 100 includes a phacoemulsification unit 110 and a pumping unit 140 that are detachably coupled together. In summary, the phacoemulsification unit 110 is adapted to break the lens of the eye into small pieces and to suction the pieces using suction provided by the pumping unit 140.

The lens emulsification unit 110 includes a body portion 120 and a distal end assembly 130. The body portion 120 includes a housing 121 that is substantially rigid and is made of hard plastic, metal, or any other suitable material. The body portion 120 can have any length. In some instances, the body portion 120 can have a length of between about 4 inches and 6 inches. In other cases, body portion 120 can have a length greater than 6 inches or less than 4 inches. The body portion 120 also includes an infusion port 122 for use in the lens An infusion fluid (eg, a water/saline solution) is received during the separation and removal procedure for delivery to the eye. In some cases, the fluid can be, for example, from a surgical table. The infusion port 122 is in communication with one of the channels 124 in the housing 121.

The body portion 120 also includes a resonator 125. The resonator 125 is adapted to generate high frequency vibrations (e.g., ultrasonic waves) in response to the applied electric power, and the power can be received through a wire tube 126. In a particular implementation, the resonator 125 can be a piezoelectric transducer.

Inside the housing 121, the body portion 120 includes an angle 127 that is vibrated by the resonator 125. The corner 127 can be made, for example, of metal. Angle 127 includes a channel 128 through which eye fluid and tissue can be extracted. Angle 127 also includes a male luer connector 129. In a particular implementation, the male luer 129 is composed of a polymer that assists in combating separation due to system vibration during use.

The distal end assembly 130 includes a flexible sleeve 131. The sleeve 131 can be made, for example, of an elastomeric material such as polyfluorene. The sleeve 131 forms a channel 132. Channel 132 is also in communication with channel 124. The perfusate flows through the channel 124 and into the channel 132. The perfusate can flow through the channel 132 until it exits the distal end assembly 130 as indicated by arrow 133.

The distal tip assembly 130 also includes a surgical tip 134. The surgical tip 130 extends through the sleeve 131. The tip end 134 engages the corner 127 of the body portion 120 and receives vibration from the resonator 125 through the corner. The surgical tip 134 can be made, for example, of a metal such as stainless steel or titanium. The surgical tip 134 includes a distal section 135 that can be placed against the lens to emulsify. More specifically, the surgical tip 134 is operable to break up and emulsify the natural lens of the eye when vibrated. The distal section 135 includes a mouth 139 through which material from the eye can enter. Such materials may include ocular fluids (eg, aqueous humor and/or fluids that perfuse the eye), lens particles, tissue, and any other material that is desired to be removed from the eye. These substances can be aspirated from the eye as indicated by arrow 136. The fistula 139 is in communication with a channel 137 that extends through the surgical tip 134. Fluid can be delivered through channel 137 of surgical tip 134 and can be delivered through channel 128 of angle 127.

In this illustrated embodiment, the distal end assembly 130 is adapted to slidably engage the body portion 120. For example, one of the distal ends 152 of the surgical tip 134 can be received within one of the distal ends 156 of the one of the corners 127. Also, in some cases, one of the proximal ends 158 of the sleeve 131 can be received onto one of the distal ends 160 of the housing 121. Again, the proximal end 158 of the sleeve 131 can be flexed at the end 138 to receive the distal end 160 of the housing 121.

The pump unit 140 includes a body 142. In some cases, the body 142 can be made of metal, hard plastic, or any other suitable material. Body 142 can have any length. In some cases, body 142 can have a length of between about 4 inches and 6 inches. In other cases, body 142 can have a length greater than 6 吋 or less than 4 。. The body 142 covers a motor 144 or the like. In some cases, motor 144 can be an electric motor. In other applications, the motor 144 can be other types of motors. For example, in some cases, motor 144 may be pneumatic, hydraulic, or any other type of motor that is operable to actuate pump unit 140.

In the present embodiment, an electric motor is described. However, the scope of the disclosure is not limited thereto, and the description of the electric motor is proposed for illustrative purposes only. Motor 144 is operable to generate a rotational drive in response to the supplied power received through conduit 148. In a particular implementation, motor 144 can be a direct current (DC) motor. Motor 144 can operate, for example, from 0 to 6,000 RPM.

Pump unit 140 may also include a pump 146 that is driven by motor 144. As illustrated, the pump 146 is a scroll type peristaltic pump. In other applications, the pump 146 can be other types of peristaltic pumps or any other suitable type of pump. For example, in some cases, pump 146 may be a venturi type pump. The pump 146 draws fluid through a channel 149 that communicates with the channel 128 of the lens embedding unit 110. The pumping unit 140 also includes a suction port 150 through which the suction fluid can be discharged. Aspirating substances (eg, fluids and tissues, such as aqueous humor, perfusion fluid, cortical material, epithelial cells, etc.) can be delivered to a container (eg, a bag or trough).

Pump unit 140 may also include an adapter 152. The adapter 152 can be coupled to a distal end 160 of the pump unit 140. The adapter 152 can include a female luer connector 154 that can be adapted to receive the male luer connector 129 of the lens embedding unit 110. In some cases, the two luer fittings 129, 154 can be friction fit to match each other. The female luer connector 154 can be made, for example, of metal (eg, stainless steel or titanium), plastic, or any other suitable material.

During surgery, one or more incisions can be made in the eye to allow introduction of the surgical instrument. A user (such as a physician or other medical professional) then removes the front surface of the capsule that holds the lens inside the eyeball.

The surgical tip 135 of the distal tip assembly 130 is then inserted through the opening into the interior of the eye until the tip 135 contacts the lens. The resonator 125 is then actuated at a relatively high frequency (e.g., ultrasonic), causing the tip 135 to vibrate to engrave and emulsify the lens while the pumping unit 140 draws particles through the channels 137 formed in the surgical tip 135. In general, the lens is segmented into two pieces or Four pieces, and each piece is emulsified and sucked out through the channel 137, the channel 128, the channel 149, and the suction port 150. After phacoemulsification is used to remove all of the hard portion of the lens, for example, the central lens nucleus, a softer portion, such as the outer lens cortex, can be removed only by aspiration (eg, using a perfusion-extraction unit).

System 100 has a variety of features. For example, system 100 can be used to remove a diseased eye from the eye. In addition, the positioning of the pumping unit 140 closer to the lens emulsification unit 110 improves the stability of the ocular emulsification. It is important to maintain the stability of the intraocular pressure inside the eyeball because fluctuations in ocular pressure may cause rupture of the posterior capsule, loss of endothelial cells, and inflammation. Improved anterior capsule stability should result in improved clinical outcomes. Further, since the phacoemulsification unit 110 can be detached from the pump unit 140, another unit can be coupled to the pump unit 140. For example, a perfusion-absorption probe or a vitrectomy probe can be coupled to the pump unit. As such, system 100 provides the ability to use pump unit 140 for various procedures during a surgical procedure.

Although FIG. 1 illustrates a system embodiment of an ophthalmic procedure, other systems of ophthalmic surgery may include fewer, more, and/or different component configurations. For example, different phacoemulsification units can be used for the pumping unit 140. Such a pumping unit is suitable for different phacoemulsification units. For example, in some embodiments, the lens emulsification unit may include a second precision metal instrument called a "chopper" for assisting the chopping of the lens core into smaller pieces from the side jaws. As another embodiment, a different pumping unit can be used for the phacoemulsification unit 110. For example, one of the different pump orders of the male luer 129 having an adapter operable to interface the phacoemulsification unit 110 can be used. yuan.

As another embodiment, the phacoemulsification unit 110 can also be used in a standard surgical machine. Since the lens emulsification unit 110 includes the male luer 129, it is easy to couple a surgical catheter (such as a hose or tube) to a surgical table. In other words, in some cases, the phacoemulsification unit 110 detached from the pump unit 140 can be coupled to a surgical table through one or more surgical catheters.

Although the female luer connector 154 and the male luer connector 129 are shown to be matched by a friction fit, other matches between the luer connectors are also possible. For example, the male luer 129 can have bolts on the outside, and the bolts have corresponding bolts on the adapter 152. Thus, the threaded engagement can match the pump unit 140 with the phacoemulsification unit 110. In some cases, pump unit 140 and lens emulsification unit 110 may be coupled by friction matching and thread engagement. In a particular implementation, the pumping unit 140 can be mated with the lens emulsification unit 110 by threaded engagement without a luer. It is also possible to apply a variety of other couplings that allow the lens emulsification unit 110 and the pump unit 140 to be decoupled while the integrated handheld configuration is maintained during the surgical procedure. Embodiments of the coupling member include a luer, a rotating threaded sheath, and a ratcheted elastomer.

FIG. 2 illustrates one embodiment of a perfusion-extraction (I/A) unit 200. The I/A unit 200 can be used, for example, for a pump unit similar to the pump unit 140.

An embodiment of the perfusion-extraction (I/A) unit 200 includes a housing 210 defining a channel 214, an insert 211 housed within the channel 214, and a proximal end formed in the housing 210. A male luer 219 in the recess 221 of the 230 and a sleeve 220 coupled to one of the distal ends 242 of the housing 210. The housing 210 can be made from a rigid material. For example, the housing 210 can Made from hard plastic, metal or other suitable materials. The housing 210 can also include an infusion port 212 that defines a channel 244.

In several applications, the male luer 219 is composed of a polymer. In other embodiments, the male luer 219 can be made of metal or any other suitable material.

The insert 211 defines a channel 217 extending therethrough. The male luer connector 219 defines a channel 236. The perfusion-extraction (I/A) unit 200 also includes a sleeve 224 extending from the distal end 232 of the insert 211. One of the proximal ends 234 of the sleeve 224 is received at the distal end 232 of the channel 217. The sleeve 224 defines a channel 225 extending therethrough. Channels 217, 225 and 236 are in communication with one another to define an extraction channel 238.

Sleeve 220 defines a channel 222. The distal end of the housing 210 can be received within the channel 222 such that the sleeve 220 extends over a distal end of the housing 210 to form a sealed interface. Other engagements (e.g., threads or spines) may be used in other applications. The sleeve 224 extends through the channel 222 such that one of the distal ends 226 of the sleeve 224 extends beyond one of the distal ends 242 of the sleeve 220. In some cases, the sleeve 224 can be made entirely or partially from a plastic material. In other applications, the sleeve 224 can be made from a metal such as stainless steel or titanium. In other cases, the sleeve 224 can be made from any suitable material. Again, in some cases, the sleeve 224 can include a tip end 231. Tip 231 can be used, for example, to polish a pocket. In some cases, the tip end 231 can be an integrally formed component of the sleeve 224. For example, when the sleeve 224 is made of plastic, the tip end 231 can be an integrally formed component of the sleeve 224. In the case where the sleeve 224 is made of metal, the tip end 231 can be made of plastic applied to the distal end 226 of the sleeve 224. For example, the tip end 231 can be overmolded Plasticized onto the sleeve 224.

The outer surface of the insert 211 and the inner surface of the housing 211 define an annular space 240 extending through the housing 210. The annular space 240 is spaced from the extraction channel 238. The annulus 240 is in communication with the channels 222, 244 to define an infusion channel 246. The infusion channel 246 is fluidly isolated from the extraction channel 238.

An infusion fluid, such as a water/saline solution (e.g., a balanced salt solution), is introduced into the infusion channel 246 through the infusion port 212. In several occurrences, the infusion fluid exits the perfusion-extraction (I/A) unit 200 at the distal end 242 of the sleeve 220, as indicated by arrow 223. In other embodiments, the sleeve 220 can include one or more jaws 243 formed at its distal end 242 that allow for the outflow of perfusion fluid. As indicated by arrow 223, the infusion fluid exits the perfusion-extraction (I/A) unit 200 at the distal end 242 of the sleeve 220. The infusion fluid can be provided to the eye during surgery, such as during cortical removal or balloon polishing. The infusion fluid can be provided, for example, by a surgical machine.

The extracted material is drawn into the extraction channel 238 of the perfusion-extraction (I/A) unit 200 through a distal opening 248 as indicated by arrow 227. The extracted material exits the perfusion-extraction (I/A) unit 200 through the extraction channel 238 and through the male luer connector 219.

In the illustrated embodiment, the sleeve 220 is slidably engaged with the body portion 210. As such, the sleeve 220 extends over the distal end of the body portion 210 to form a sealed interface.

In operation, the perfusion-extraction (I/A) unit 200 can be coupled to a hand-held pump unit, such as pump unit 140, and to a perfusion supply line (eg, from a surgical table). The distal end 226 of the cannula 224 can be inserted into the eye via an existing incision. Substances such as cortical substances can then be combined with other tissues (eg The epithelial cells are extracted while maintaining the integrity of the posterior capsule. At the same time, the fluid can be infused into the eyeball to stabilize. In addition, the posterior capsule can be polished using the distal end 226 if desired.

The perfusion-extraction (I/A) unit 200 has a plurality of characteristics. For example, by positioning the pump unit close to the lens emulsification unit, the stability of the eye can be improved. In addition, the perfusion-extraction unit 200 can be used in conventional surgical machines if desired. The hand-held pump unit can also be placed away from the perfusion-extraction unit 200 (for example for ergonomic reasons) and coupled to the perfusion-extraction unit via a withdrawal line.

Although FIG. 2 illustrates one embodiment of a perfusion-extraction (I/A) unit 200, other systems may use other I/A units that may include fewer, more, and/or different component configurations.

3A and 3B are an embodiment of a pumping unit 300, for example. The pump unit 300 includes a driving portion 310 and a pumping portion 320. Pump unit 300 can be used, for example, in system 100.

The driving part 310 includes a body 312. In the present embodiment, the body 312 is generally cylindrical and made of metal, but may be of other shapes and made of other materials. The body 312 includes a slot 314 that is assembled to receive a fluid port 330 of the pumping portion 320, as described in more detail below. An electric motor is mounted inside the body 312 and a rotor 316 is thereby driven. A conduit 318 is used to supply power to the drive unit 310.

The pumping portion 320 includes a casing 322 and an inner casing 324. The outer casing 322 is sized to be nested in the body 312 of the driving portion 316, and the inner casing 324 is sized to fit inside the body 312. As such, the body 312 is in the outer casing 322 and the inner casing 324 Swipe between. The shells 322, 324 may be made of hard plastic, metal, or any other suitable material. Inside the inner casing 324, the pumping portion 320 includes an elastomeric pumping section 326 that includes an integrated conduit 327. The elastomer pumping section 326 engages the rotor 316 in the drive section 310. The elastomer pumping section 326 is engaged by the rotor 316 as the rotor 316 rotates causing material within the integrated conduit 327 to pass therethrough. For example, the rotor 316 can compress the elastomer pumping section 326, thereby causing a peristaltic pumping action to transfer material within the integrated conduit 327. As such, the elastomer pumping section 326 can, for example, provide a peristaltic action to pump fluid through the pumping unit 300.

Pumping portion 320 also includes an adapter 328. In some cases, the adapter 328 can be adapted to engage a male luer connector on a unit (e.g., a lens emulsification unit and/or a perfusion-extraction unit) that is adapted to be coupled thereto. In other applications, the adapter 328 is adapted to house a male connector on a unit, such as a lens emulsification unit handset and a perfusion-extraction handset, or any other desired device. The adapter 328 includes an internal channel 332. The internal channel 332 is in fluid communication with the integrated conduit 327. Fluid can be drawn into the pump unit 300 via the internal channel 332. The pumping portion 320 also includes a fluid port 330 through which fluid can be discharged from the pump unit 300. The fluid port 330 is sized to fit within the slot 314 of the body 312.

The driving portion 310 and the pumping portion 320 can be coupled by inserting a distal end 313 of the body 312 into the outer casing 322 of the pumping portion 320 and the inner casing 324, and the fluid port 330 is aligned with the slot 314. In the illustrated embodiment, the pumping portion 320 is rotatable relative to the drive portion 310 such that the fluid port 330 resides within a lateral portion 315 of the slot 314. In this way, by rotating the pumping unit relative to each other 320 and the driving portion 310 are such that the fluid port 330 is seated inside the lateral portion 315 of the slot 314, causing the pumping portion 320 to be fixed to the driving portion 310.

The pump unit 300 has a plurality of characteristic members. For example, the pump unit 300 allows access to a coupling unit, such as a phacoemulsification unit or a perfusion-extraction unit, to perform a pumping action. In this way, the stability of the eye can be improved. Further, since the pumping portion 320 and the driving portion 310 are separable, the pumping portion 320 can be removed (for example, contaminated with biological material) after the operation to retain the driving portion 310. Such a drive unit 310 can be used for multiple operations. Moreover, because the adapter 328 is adapted to engage a plurality of coupleable units (eg, a lens emulsification unit, a perfusion-extraction unit, etc.), the pump unit 300 can be used for multiple operations during a surgical procedure.

FIG. 4 illustrates one embodiment of a surgical table 400 for ophthalmic surgery. The machine 400 includes a housing 402 having a computer system 404 and an associated display 406 operable to display, for example, information relating to system operation and system performance during a surgical procedure. Display 406 can also interface with machine 400, such as to establish or change one or more operations of machine 400. In some cases, display 406 can include a touch sensitive screen for interacting with machine 400 by a screen of touch display 406.

A variety of probes are available for the surgical table 400. Machine 400 can provide electrical, pneumatic, hydraulic, and/or other suitable types of power to a probe, for example. The machine 400 is also operable to control the power supplied, for example, the infusion rate of the infusion fluid to the surgical site, the extraction of fluid from the surgical site, and/or the ultrasonic power to a phacoemulsification unit, and the monitoring of one or more patient vital signs. .

The machine 400 can also include multiple systems that are used together for Ophthalmic surgery procedure. For example, the systems can include a foot switch system 408 including, for example, a foot switch 410 that can provide, for example, active infusion, extraction, and a gas mechanics system 418. The aerodynamic system 418 is operable to supply power to a probe and control. For example, the aerodynamic system 418 is operable to repeatedly apply a pressurized gas cyclically. In some cases, the aerodynamic system 418 can operate to circulate a pressurized gas at a rate of from one cycle per minute to 7,500 cycles per minute, or possibly even at a rate of 10,000 cycles per minute or more. In some applications, the recycle gas can be applied, for example, at different pressures, at different rates, and at different duty cycles. A probe can also interface with the machine 400 through the aerodynamic system 418 (e.g., to control actuation of the cutting machine). The flow control technology system 412 is operable to provide an infusion fluid and/or a perfusion fluid to the eye. The flow control technology system 412 is also operable to generate a vacuum, such as extracting material during a surgical procedure. In order to optimize the performance of different systems during a surgical procedure, the operational parameters may be, for example, based on the particular procedure being performed, the different stages of the procedure, the individual preferences of the surgeon, the surgical system being performed on the anterior or posterior portion of the patient's eyeball, etc. Change and wait.

In the present invention, the fluidics technology system 412 includes a fluid reservoir 414 and a fluid control device 416. The fluid reservoir 414 holds the fluid that infuses the eyeball. The fluid can be, for example, a water/salt aqueous solution. In a particular implementation, fluid reservoir 414 may also supply fluid to other operations (eg, to maintain intraocular pressure) during ophthalmic surgery. Fluid control device 416 is coupled to fluid reservoir 414 and is adapted to control fluid flow from fluid reservoir 414 to a perfusion port of a hand-held device (eg, a phacoemulsification probe or a perfusion-extraction probe). Fluid reservoir 414 can be, for example, a bag, and fluid control device 416 can be a pump. The flow control technology system 412 can also supply perfusion fluid by gravity feed.

Different systems in the machine 400 can include various functions and operations and controls performed by the machine 400 to operate the probe. Computer system 404 is operable to control interactions and relationships between different systems to properly perform surgical procedures. To accomplish this, computer system 404 can include one or more processors, one or more memory devices, and can be assembled or programmed to control the operation of machine 400 based on pre-established programs or sequences.

In some modes of operation, the machine 400 can provide a perfusion fluid to a phacoemulsification unit via a line 413. The phacoemulsification unit can receive an extraction suction from a local pumping unit coupled to one of the phacoemulsification units. The machine can also supply perfusion fluid to another coupleable unit (e.g., a perfusion-extraction unit) via line 413. Also, a unit such as a perfusion-extraction unit can be used after a previously used unit such as a lens emulsification unit. However, one or more of such units, such as those described herein, or other suitable units may be used in any desired order. The perfusion-extraction unit can also receive extraction from a pumping unit that has previously been coupled to the phacoemulsification unit.

In some applications, the machine 400 can provide extraction of one or more mobile phones. For example, the machine 400 can provide extraction of one of the I/A units of the lens emulsification unit. In some cases, machine 400 can be used to provide extraction to an I/A unit such as I/A unit 200.

FIG. 5 illustrates a selection operation for an exemplary method 500 of ophthalmic surgery. Method 500 can be achieved, for example, using a system similar to system 100.

Method 500 requires emulsification of a lens within the eyeball using a modular hand-held system comprising a lens emulsification unit and a pumping unit (operation 504). Emulsifying the lens, for example, including using a ultrasonic transmission to strike the lens Broken into small pieces. For example, in some cases, the lens can be broken into four pieces. But the lens can be broken into any number of different pieces.

Method 500 also requires the use of a handheld system to remove the lens portion (operation 508). For example, a portion of the lens can be extracted via the display due to the suction provided by the pump unit.

Method 500 additionally requires that the lens emulsification unit be decoupled from the pump unit (operation 512). The phacoemulsification unit can be decoupled, for example, by removing the male luer of the lens emulsification unit from the female luer of the pump unit.

The method 500 also requires coupling a perfusion-extraction unit to the pump unit to form a second system (operation 516). The perfusion-extraction unit can be coupled, for example, by attaching one of the perfusion-extraction units to the male luer of the pump unit.

Method 500 additionally requires the use of a second system to remove material from the eyeball (operation 520). For example, cortical material can be removed from the eye. Other materials such as fluids and/or other tissues may also be removed. The materials may be withdrawn via a perfusion-extraction unit, for example, by the suction provided by the pump unit.

The method 500 also requires polishing the lens capsule of the eye using a second system (operation 524). The posterior capsule can be polished, for example, using one of the tip or distal ends of the perfusion-extraction unit.

While FIG. 5 illustrates one of the methods of one of the ophthalmic procedures, other methods of ophthalmic surgery may include fewer, more, and/or different operational configurations. For example, a method can include the operation prior to emulsifying the lens. For example, one or more incisions can be made in the eye (eg, through the cornea) to allow introduction of the surgical device. It is also possible to remove the surface of the capsule that holds the lens inside the eyeball. As an additional embodiment, a method can include infusing the lens (eg, using a balanced salt solution) during removal of the lens and/or other material from the eye. As another embodiment, a method may not include polishing the lens capsule. As for In still another embodiment, a method can include switching a perfusion supply line from the phacoemulsification unit to a separate perfusion handset unit. In addition, multiple procedures can be performed simultaneously or simultaneously.

The items discussed and discussed herein are for illustrative purposes only. The present invention has been chosen and described in order to explain the principles and embodiments of the inventions disclosed herein In this way, the actual physical configuration of the component can be changed. For example, the dimensions of the components and their exemplified size ratings relative to each other can be varied based on the application. Furthermore, the shape of one or more components may vary depending on the application. As such, the instant description should not be interpreted as defining the unique physical dimensions, shapes, and relationships of the components.

Various systems and techniques for ophthalmic surgery have been discussed, and several others have also been described or suggested. However, skilled artisans are well aware of the numerous additions, deletions, substitutions, and modifications to these systems and techniques while still achieving eye surgery. As such, the scope of protection must be based on the following claims, which can capture one or more of the one or more aspects.

100‧‧‧ system

110‧‧‧Lens emulsification unit

120‧‧‧ Body Department

121‧‧‧Shell

122‧‧‧Infusion mouth

124, 128, 132, 137, 149‧‧‧ channels

125‧‧‧Resonator

126, 148‧‧‧ wire tube

127‧‧‧ corner

129‧‧ ‧ male luer connector

130‧‧‧ distal end assembly

131‧‧‧Sleeve

133, 136‧‧‧ arrows

134‧‧‧Surgical tip

135‧‧‧ distal section

End of 138‧‧‧

139‧‧‧埠口

140‧‧‧ pump unit

142‧‧‧ Ontology

144‧‧‧ motor

146‧‧‧ pump

150‧‧‧ suction mouth

152‧‧‧ Adapter

154‧‧‧Female Luer connector

Claims (5)

A modular hand-held system for ophthalmic surgery, the system comprising: a hand-held lens emulsification unit; a hand-held pump unit adapted to provide suction for extracting material through the lens emulsification unit, The pump unit includes an adapter coupled to detachably couple the lens emulsification unit to the pump unit to form an integrated handheld system; and a hand-held perfusion-extraction unit, wherein the pumping unit The adapter is also configured to detachably couple the pump unit to the handheld perfusion-extraction unit to form a second integrated handheld system, the pump unit being adapted to pass the perfusion- The extraction unit provides suction for extraction. The system of claim 1 wherein the lens emulsifying unit is adapted to receive suction from a surgical table for extracting material from an eye. The system of claim 1 wherein the lens emulsification unit comprises a male luer connector and the adapter comprises a female luer connector. The system of claim 3, wherein the luer connectors are engaged by a frictional match. The system of claim 1 wherein the adapter is comprised of plastic.