Devices for performing intraocular surgery and methods for using them
| Title: | Devices for performing intraocular surgery and methods for using them |
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| Patent Number: | 12023,278 |
| Publication Date: | July 02, 2024 |
| Appl. No: | 17/373663 |
| Application Filed: | July 12, 2021 |
| Abstract: | Devices, systems, and methods for performing intraocular surgery. In one example, the device includes a handpiece including proximal and distal ends; a diathermy needle extending from the distal end and terminating in a diathermy tip; and a tubular shaft extending from the distal end adjacent the diathermy needle and terminating in an aspiration tip, the tubular shaft including an aspiration lumen extending proximally from an aspiration opening in the aspiration tip. An actuator on the handpiece is coupled to the shaft for directing the shaft between a distal position where the aspiration tip is adjacent the diathermy tip and a proximal position where the aspiration tip is offset proximally from the diathermy tip. A generator may be connected to the handpiece for delivering energy to the tip for performing diathermy and a vacuum source may be connected to the handpiece for delivering suction to the aspiration opening. |
| Inventors: | Salehi-Had, Hani (Huntington Beach, CA, US) |
| Claim: | 1. A device for performing intraocular surgery, comprising: a handpiece comprising a proximal end and a distal end, and defining a longitudinal axis therebetween; a diathermy needle extending axially from the distal end and terminating in a diathermy tip; a tubular shaft extending axially from the distal end adjacent the diathermy needle and terminating in an aspiration tip, the tubular shaft comprising an aspiration lumen extending proximally from an aspiration opening in the aspiration tip; and an actuator on the handpiece coupled to the tubular shaft for directing the tubular shaft between a distal position where the aspiration tip is adjacent the diathermy tip and a proximal position where the aspiration tip is offset proximally from the diathermy tip. |
| Claim: | 2. The device of claim 1 , further comprising a connector on the handpiece electrically coupled to the diathermy tip and configured for connecting to a diathermy generator to deliver diathermy to tissue contacted by the diathermy tip. |
| Claim: | 3. The device of claim 2 , further comprising one or more leads extending from the connector to the diathermy needle and electrically coupled to the diathermy tip. |
| Claim: | 4. The device of claim 1 , further comprising a port on the handpiece and a suction path communicating between the port and the aspiration lumen, the port configured for connecting to a source of vacuum for aspirating material into the aspiration opening and through aspiration lumen and port. |
| Claim: | 5. The device of claim 4 , further comprising a length of tubing extending axially at least partially between the handpiece proximal and distal ends and at least partially defining the suction path, the tubular shaft comprising a proximal end sliding telescopically with a distal end of the tubing such that the aspiration lumen communicates with an interior of the tubing. |
| Claim: | 6. The device of claim 5 , wherein the proximal end of the tubular shaft is slidably received within the distal end of the tubing. |
| Claim: | 7. The device of claim 5 , wherein one or both of the proximal end of the tubular shaft and the distal end of the tubing comprise one or more seals to provide a fluid-tight seal. |
| Claim: | 8. The device of claim 1 , wherein the actuator comprises a button slidably mounted on the handpiece and movable axially between first and second positions for moving the tubular shaft between the distal and proximal positions. |
| Claim: | 9. The device of claim 1 , wherein the aspiration shaft is configured to slide along an outer surface of the diathermy needle. |
| Claim: | 10. A system for performing intraocular surgery, comprising: a diathermy device comprising: a) a handpiece comprising a proximal end and a distal end, and defining a longitudinal axis therebetween; b) a diathermy needle extending axially from the distal end and terminating in a diathermy tip, the diathermy tip electrically coupled to a connector on the handpiece; c) a tubular shaft extending axially from the distal end adjacent the diathermy needle and terminating in an aspiration tip, the tubular shaft comprising an aspiration lumen extending proximally from an aspiration opening in the aspiration tip; and d) an actuator on the handpiece coupled to the tubular shaft for directing the tubular shaft between a distal position where the aspiration tip is adjacent the diathermy tip and a proximal position where the aspiration tip is offset proximally from the diathermy tip; and a diathermy generator connectable to the connector on the handpiece, the generator configured to generate electromagnetic signals that are transmitted to the diathermy tip to deliver diathermy to tissue contacted by the diathermy tip. |
| Claim: | 11. The system of claim 10 , wherein the handpiece comprises a port and a suction path communicating between the port and the aspiration lumen, the system further comprising a vacuum source connectable to the port for aspirating material into the aspiration opening and aspiration lumen. |
| Claim: | 12. The system of claim 11 , wherein the diathermy device further comprises a length of tubing extending axially at least partially between the handpiece proximal and distal ends and at least partially defining the suction path, the tubular shaft comprising a proximal end sliding telescopically with a distal end of the tubing such that the aspiration lumen communicates with an interior of the tubing. |
| Claim: | 13. The system of claim 12 , wherein the proximal end of the tubular shaft is slidably received within the distal end of the tubing. |
| Claim: | 14. The system of claim 12 , wherein one or both of the proximal end of the tubular shaft and the distal end of the tubing comprise one or more seals to provide a fluid-tight seal. |
| Claim: | 15. The system of claim 10 , wherein the diathermy device further comprises one or more leads extending from the connector to the diathermy needle and electrically coupled to the diathermy tip. |
| Claim: | 16. The system of claim 10 , wherein the diathermy needle is positioned adjacent the tubular shaft outside the aspiration lumen such that the aspiration shaft is configured to slide along an outer surface of the diathermy needle. |
| Claim: | 17. A method for performing intraocular surgery, comprising: providing a diathermy device including a diathermy needle extending axially from a handpiece and terminating in a diathermy tip, and a tubular shaft extending axially from the handpiece adjacent the diathermy needle and terminating in an aspiration tip; introducing the diathermy tip and aspiration tip into a vitreous cavity of an eye; manipulating the device to position the aspiration tip proximal to the diathermy tip; contacting tissue within the eye with the diathermy tip to deliver heat with the aspiration tip positioned proximal to the diathermy tip; manipulating the device to move the tubular shaft relative to the needle to position the aspiration tip adjacent the diathermy tip; and aspirating material from the vitreous cavity into the aspiration tip and aspiration lumen with the aspiration tip adjacent the diathermy tip. |
| Claim: | 18. The method of claim 17 , wherein the aspiration tip is positioned proximal to the diathermy tip before introducing the diathermy tip and aspiration tip into the vitreous cavity. |
| Claim: | 19. The method of claim 17 , wherein manipulating the device to position the aspiration tip adjacent the diathermy tip comprises manipulating an actuator on a handpiece of the device to advance the aspiration tip until the aspiration tip is adjacent or distally beyond the diathermy tip. |
| Claim: | 20. The method of claim 17 , wherein tissue is contacted with the diathermy tip to deliver heat with the aspiration tip spaced proximally from the diathermy tip, and wherein manipulating the device comprises advancing the tubular shaft relative to the needle to position the aspiration tip adjacent the diathermy tip before aspirating material. |
| Claim: | 21. A device for performing intraocular surgery, comprising: a handpiece comprising a proximal end and a distal end, and defining a longitudinal axis therebetween; a tubular shaft extending axially from the distal end and terminating in an aspiration tip, the tubular shaft comprising an aspiration lumen extending proximally from an aspiration opening in the aspiration tip; a diathermy needle extending axially from the distal end adjacent the tubular shaft outside the aspiration lumen and terminating in a diathermy tip positioned adjacent the aspiration tip; a connector on the handpiece and one or more leads electrically coupling the connector to the diathermy needle, the connector configured for connecting to a diathermy generator to deliver diathermy to tissue contacted by the diathermy tip; and a port on the handpiece and a suction path communicating between the port and the aspiration lumen, the port configured for connecting to a source of vacuum for aspirating material into the aspiration opening and through aspiration lumen and port. |
| Claim: | 22. The device of claim 21 , further comprising an actuator on the handpiece coupled to the tubular shaft for directing the tubular shaft between a distal position where the aspiration tip is adjacent the diathermy tip to aspirate and a proximal position where the aspiration tip is offset proximally from the diathermy tip to deliver diathermy. |
| Patent References Cited: | 4014333 March 1977 McIntyre 20150148615 May 2015 Brennan 20190388135 December 2019 Gogolin 20210228412 July 2021 de Juan |
| Primary Examiner: | Getzow, Scott M. |
| Attorney, Agent or Firm: | English, William A. Vista IP Law Group LLP |
| Accession Number: | edspgr.12023278 |
| Database: | USPTO Patent Grants |
| Language: | English |
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