10 results about "Stereotactic device" patented technology

The application relates to the field of stereotactic surgery technology, and discloses a neurosurgical stereotactic surgery positioning system based on multi-modal image fusion, which comprises a multi-modal image acquisition module, an intelligent registration and fusion module, a three-dimensional modeling module, a surgery navigation engine, an augmented reality interface and a dynamic calibration module; through the setting of the cross-modal elastic registration module, when the multi-modal image fusion is carried out, the spatial matching degree of functional images and structural images is detected in real time through a nonlinear deformation compensation algorithm; when there is a registration deviation between the white matter fiber bundle and the tumor boundary, the system dynamically generates an elastic deformation compensation field, the positioning accuracy of the functional area is improved, and the risk of functional area cutting is reduced; through the setting of the dynamic drift correction module, when deep target point navigation is carried out, the brain tissue displacement change is sensed in real time based on laser surface scanning, the accurate correction of the position and posture of a surgical instrument is realized, and the reliability of deep target point positioning is ensured.

The invention relates to a mouse simulator for stereotactic surgery training, which comprises a head having a hollow skull. The simulator also comprises an electronic detection assembly comprising a sensor located inside the skull and a detecting module located on the outside of the simulator, wherein the detecting module is in electrical communication with the sensor and with a cannula. The detecting module also comprises one or more feedback indicators activated by means of the cannula making contact with an area of the sensor.

The application discloses a stereoscopic directional device, which comprises a base, a connector, a guide rail, a support and a guide, wherein the base is used for being fixed to a head; one end of the connector is pivotally arranged on the base, and the connector can be detached relative to the base; the guide rail is ball-jointedly arranged on the other end of the connector; one end of the support is slidingly arranged on the guide rail; the guide is embedded on the other end of the support, and the guide is used for guiding the direction of a puncture channel of a stereoscopic directional puncture operation. The base is used for fixing the stereoscopic directional device to the head, the connector is detachably connected with the base, so that the connector can be detached from the base before a CT scanning operation is completed, and the weight of the head of a patient can be reduced. The guide is installed on the guide rail through the support, the guide can move relative to the guide rail, the flexibility and the working range of the stereoscopic directional device can be further improved, and the puncture operation can be accurately, flexibly and quickly positioned. The stereoscopic directional device has the advantages of simple structure, convenient use and low cost.

A system for use in stereotactic neurosurgery. The system comprises a guide and a reference tool. The guide is configured to receive a surgical tool for use in stereotactic surgery and comprises an instrument guide stop configured to engage with a datum surface of a stereotactic instrument. A position of the instrument guide stop on the guide is adjustable. A distal end of the reference tool is configured to engage with a skull. The guide is configured to rigidly engage with the reference tool such that a distance between a proximal end of the guide and the distal end of the reference tool is equal to a predetermined reference length. A method of using the system.

A stereotactic device wearable by a patient for low-intensity focused-ultrasound neuromodulation has a support frame shaped to be fitted around a head of the patient, a first movable component having an arched shape and having a first end and a second end engaged with the support frame at respective first and second coupling points. A second movable component has an engagement portion with the first movable component adapted to allow the second movable component to move integrally with the first movable component and to slide along the first movable component to take a plurality of positions between a first position in which the second movable component is proximal to the first end and a second position in which the second movable component is proximal to the second end. A low-intensity focused-ultrasound neuromodulation module housed in a support portion of the second movable component has a low-intensity focused-ultrasound sonication probe.

The invention discloses an acute cerebral hemorrhage mouse model as well as a construction method and application thereof. The construction method comprises the following steps: collecting autologous venous blood from the inner canthus vein of a mouse through an injector connected with a capillary glass tube; after a hole is drilled in a skull target area, 20-30 [mu] L of blood is injected into brain parenchyma through a stereotactic device by using the same injector, the injection speed is 2.0-3.0 [mu] L / min, and a needle stays for 3-10 minutes after injection. According to the method, blood coagulation is effectively prevented through the integrated blood sampling injection design, and the modeling success rate is remarkably increased. The constructed model can stably form focal hematoma, accurately simulates secondary brain injury pathological characteristics such as inflammatory response, iron metabolism disorder and immune cell infiltration after human cerebral hemorrhage, and is suitable for cerebral hemorrhage pathogenesis research and therapeutic drug screening.

Embodiments of the present disclosure discloses a stereotactic device (100, 200). The stereotactic device (100, 200) comprises, a clamp (102, 202), a bar (106, 206) configured for being held by the clamp (102, 202), and an articulating arm assembly (120, 220). The articulating arm assembly (120, 220) comprises a bottom arm (122, 222) being coupled to the bar (106, 206) through a first flexible joint (130, 230), a top arm (126, 226) being coupled to the bottom arm (122, 222) through a second flexible joint (140, 240), and being coupled to a sleeve (150, 250) through a third flexible joint (145, 245), wherein the first flexible joint (130, 230), the second flexible joint (140, 240) and the third flexible joint (145, 245) provide three degrees of freedom for moving and positioning a tip (156) of a medical device (154) attached to the sleeve (150, 250).

The utility model provides a stereotactic device, an adjusting device and a stereotactic system. The adjusting device comprises a base fixing piece, an angle measuring frame, an angle adjuster, a guiding piece, an X-direction displacement table, a Y-direction displacement table and a Z-direction displacement table. The stereotactic device comprises a base, a base adapter, a connector, a ball head mechanism, a guide rail and a support. The base is fixed to a target object; the base adapter is selectively mounted on the base fixing piece or the base; the base fixing piece is arranged on the Z-direction displacement table; the Z-direction displacement table is arranged on the X-direction displacement table; the angle measuring frame is arranged on the Y-direction displacement table and can rotate around the rotating central axis; the angle adjuster is arranged on the angle measuring frame and is provided with the guide piece; the axis of the guide piece and the rotation center axis intersect at a target point; the connector is connected with the base adapter and the ball head mechanism; the ball mechanism is connected with the guide rail; the support is arranged on the guide rail and provided with the guider, and the axis of the guider coincides with the expected approach direction. Flexible adjustment of the device can be achieved, and disassembly and assembly are convenient while the adjustment precision is guaranteed.

The utility model relates to the technical field of magnetic resonance, in particular to a magnetic resonance coil device and magnetic resonance coil equipment for stereotactic surgery. The magnetic resonance coil device comprises: a rigid base housing; the support is installed on the base shell and used for being connected with a stereotactic frame, and the stereotactic frame is used for fixing an operation part of an operated person; the two flexible side part shells are respectively connected to the base part shell, and the two flexible side part shells are arranged in a first direction in a spaced manner; the plurality of radio frequency coils are arranged in the base part shell and the two side part shells; each side shell is configured to be capable of bending and deforming towards the other side shell around a second direction perpendicular to the first direction, so that the two side shells cover the outer side of the stereotactic frame in an attached manner; the radio frequency coil in the side housing is configured to deform along with the deformation of the side housing.

This utility model discloses a base ring and a stereotactic apparatus including the base ring. The base ring has one adaptive column and three rigid contact columns. The base ring is a component of the stereotactic apparatus and is used in framed stereotactic surgery. Based on the improved supine installation technique, it reduces the invasive problems caused by changing the "four-point" base ring fixation to a "three-point" fixation, further lowering the technical threshold of framed stereotactic surgery, especially opening the door for grassroots clinicians and benefiting a wider range of people in rural areas.