Device for metering hardenable mass for vertebroplastia and other similar bone treatments
First Claim
1. A device for metering a hardenable mass for vertebroplasty comprising a main metering body with a screw-threaded shaft coupled to a propulsion plunger, wherein the main metering body has a coupling for a manual pump which is independently filled with the hardenable mass and subsequently introduces the hardenable mass into the metering body, and wherein the metering body is also equipped with an end coupling coupled to a high pressure flexible tubular member coupled to a needle for introducing the hardenable mass into a patient, the needle being inserted on a long stylet for an initial puncture and on a short stylet for a second and final puncture to a site where vertebroplasty is to be carried out.
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Accused Products
Abstract
A main metering body has a coupling for a manual pump for filling the hardenable mass for vertebroplastia, permitting its independent filling and its subsequent introduction into the metering body, which is equipped with an end coupling for a high pressure flexible tubular member that can be coupled to the needle for introducing the hardenable mass, capable of being inserted on a long stylet for the initial puncture operation and a short stylet for the second and final puncture to the site where vertebroplastia is to be carried out.
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Citations
3 Claims
- 1. A device for metering a hardenable mass for vertebroplasty comprising a main metering body with a screw-threaded shaft coupled to a propulsion plunger, wherein the main metering body has a coupling for a manual pump which is independently filled with the hardenable mass and subsequently introduces the hardenable mass into the metering body, and wherein the metering body is also equipped with an end coupling coupled to a high pressure flexible tubular member coupled to a needle for introducing the hardenable mass into a patient, the needle being inserted on a long stylet for an initial puncture and on a short stylet for a second and final puncture to a site where vertebroplasty is to be carried out.
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3. A method for vertebroplasty comprising the steps of:
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providing a device for metering a hardenable mass for vertebroplasty comprising a main metering body with a screw-threaded shaft coupled to a propulsion plunger, wherein the main metering body has a coupling for a manual pump which is independently filled with the hardenable mass and subsequently introduces the hardenable mass into the metering body, and wherein the metering body is also equipped with an end coupling for a high pressure flexible tubular member that can be coupled to a needle for introducing the hardenable mass into a patient the needle being insertable on a long stylet for an initial puncture and on a short sytlet for a second and final puncture to a site where vertebroplasty is to be carried out;
puncturing the body of a patient with the long stylet until the distal end thereof is near the site at which the hardenable mass is to be injected;
sliding the needle, which was previously inserted on the long stylet, so as to penetrate close to the vertebroplasty site;
substituting the long stylet with the short stylet for the final puncture to the vertebroplasty site;
extracting the short stylet with the needle remaining in the vertebroplasty site;
connecting to the end of the metering body a high pressure tubular member, the metering body having been previously filled by means of an auxiliary pump; and
injecting the hardenable mass by via the plunger of said metering body.
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Specification