Surgical kit for use in a craniectomy procedure

Patent metadata

Field	Value
Publication number	US-11849958-B2
Application number	US-201916979999-A
Country	US
Kind code	B2
Filing date	Mar 13, 2019
Priority date	Mar 14, 2018
Publication date	Dec 26, 2023
Grant date	Dec 26, 2023

Abstract

The present invention relates to a surgical kit for use in a craniectomy procedure, the surgical kit comprising: a medical device to be implanted in a cranial bone of a patient, the medical device ( 10 ) including several transducers for emitting ultrasound waves for treatment of brain tissue, a surgical accessory ( 20 ) intended to be positioned on the cranial bone of the patient, the surgical accessory ( 20 ) including a body whose outer perimeter defines the dimensions of an opening that is to be made in the cranial bone of the patient in order to receive the medical device, characterized in that the surgical accessory ( 20 ) comprises a plurality of holes ( 201 ) formed in the body, the position of each hole ( 201 ) on the body coinciding with the position of the axis of symmetry of a respective transducer, such that the accessory is able to be positioned optimally through the joint use of a neuronavigation system.

First claim

The invention claimed is:

1. A surgical kit for use during a craniectomy procedure, the surgical kit comprising:
a medical device capable of being implant in a cranial bone of a patient, the medical device including a support structure and several transducers mounted on the support structure for the emission of ultrasound waves for treating a brain tissue,
a surgical accessory capable of being positioned on the cranial bone of the patient, the surgical accessory including a body dimensioned to approximate the dimensions of the support structure of the medical device, the outer perimeter of the body defines dimensions of an opening capable of being made in the cranial bone of the patient in order to receive the medical device,
wherein the surgical accessory comprises a plurality of holes arranged in the body, the position of each hole on the body coinciding with the position of the axis of symmetry of a respective transducer on the support structure, each hole defining a marker for the end of a neuronavigation system in order to facilitate optimal positioning of the opening to be made in the cranial bone.

2. The surgical kit according to claim 1 , wherein the body comprises a central lumen, the surgical accessory comprising at least one pair of opposite tabs, in particular two pairs of opposite tabs, each tab protruding from the body inwardly of the central lumen.

3. The surgical kit according to claim 2 , wherein the central lumen is X-shaped.

4. The surgical kit according to claim 1 , wherein the body has a substantially parallelepiped shape with rounded corners, the rounding of each corner having a radius of curvature capable of being substantially equal to half a diameter of a medical drill bit used to make the opening in the cranial bone of the patient.

5. The surgical kit according to claim 1 , wherein the body has a substantially parallelepiped shape, the surgical accessory comprising four notches in the form of an arc of a circle disposed facing a respective corner of the body.

6. The surgical kit according to claim 5 , wherein the concavity of each notch is oriented towards its associated corner, the radius of curvature of each notch capable of being substantially equal to half the diameter of a medical drill bit used to make the opening in the cranial bone of the patient.

7. The surgical kit according to claim 1 , wherein the body is made in a deformable or semi-rigid material.

8. The surgical kit according to claim 7 , wherein the body is made of medical grade silicone.

9. The surgical kit according to claim 1 , wherein a lower face of the body is capable of contacting the cranial bone of the patient and/or an upper face opposite the lower face is textured.

10. The surgical kit according to claim 1 , which further comprises at least one strut able to be positioned between the medical device and the cranial bone of the patient.

11. The surgical kit according to claim 10 , wherein each strut comprises a peripheral frame including through-orifices for the passage of screws for fixing the medical device on the cranial bone of the patient.

12. The surgical kit according to claim 10 , wherein each strut further comprises lugs protruding outwardly of the peripheral frame.

Assignees

• Hopitaux Paris Assist Publique
• Univ Sorbonne
• Carthera

Inventors

• Carpentier Alexandre
• Vignot Alexandre
• Cholvy Matthieu

Classifications

• A61B17/1739 Primary

  specially adapted for particular parts of the body · CPC title

• A61B8/4477

  using several separate ultrasound transducers or probes · CPC title

• A61B34/20

  Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis · CPC title

• A61B90/10

  for stereotaxic surgery, e.g. frame-based stereotaxis · CPC title

• A61N7/00

  Ultrasound therapy (lithotripsy A61B17/22, A61B17/225; massage using supersonic vibration A61H23/00 {; using ultrasound for introducing media into the body A61M37/0092}) · CPC title