CN-116999187-B - Stereotactic device

CN116999187BCN 116999187 BCN116999187 BCN 116999187BCN-116999187-B

Abstract

The invention discloses a three-dimensional orientation device which comprises a base, a connector, a guide rail, a support and a guide device, wherein the base is used for being fixed on a head, one end of the connector is pivoted on the base, the connector can be detached relative to the base, the guide rail is connected with the other end of the connector in a ball mode, one end of the support is arranged on the guide rail in a sliding mode, the guide device is embedded into the other end of the support, and the guide device is used for guiding the direction of a puncture channel of three-dimensional orientation puncture operation. By securing the stereotactic device to the head using the base, the connector is removably attached to the base so that the patient can remove the connector from the base before the CT scanning procedure is completed, the weight of the patient's head can be reduced. The guide device is mounted to the sliding rail through the support, and can move relative to the sliding rail, so that the flexibility and the working range of the three-dimensional orientation device can be further improved, and the accurate, flexible and quick positioning of the puncture operation is facilitated. The three-dimensional orientation device has simple structure, convenient use and low cost.

Inventors

ZHAO CHUNSHENG
MAO WEIWEI
YAN XIANYOU
CAO GUOGANG
PEI XIAOHONG

Assignees

宁波慧沣生物科技有限公司

Dates

Publication Date: 20260508
Application Date: 20230705

Claims (8)

1. A stereotactic device for stereotactic puncture surgery, said stereotactic device comprising: A base for securing to a head; The connector is pivoted at one end of the base and can be detached relative to the base; The guide rail is in ball joint with the other end of the connector; one end of the bracket is arranged on the guide rail in a sliding way; the guide device is embedded at the other end of the bracket and used for guiding the direction of a puncture channel of the stereotactic puncture operation; the stereotactic apparatus further comprises an auxiliary gauge for determining the position of the guide rail relative to the connector; the auxiliary gauge includes: A chassis for nesting to a ball seat of the connector; A rotating disk rotatable relative to the chassis; The arched guide rail is pivoted to the rotating disc and can swing relative to the rotating disc; The sliding block adapter is sleeved on the sliding block pointer, and the sliding block pointer is slidably arranged on the arched guide rail; The side dial is arranged on the side face of the arched guide rail and used for indicating the swinging angle of the arched guide rail relative to the rotating disc.
2. The stereotactic apparatus of claim 1, wherein the axis of said guide is parallel to the axis of said guide rail.
3. The stereotactic apparatus of claim 1, wherein one end of said connector is sleeved on a connecting shaft of said base, said stereotactic apparatus further comprising a tightening nut screwed on said connecting shaft, said tightening nut being used for compressing and fixing said connector.
4. A stereotactic apparatus as claimed in claim 1, wherein said connector is provided with a small dial, the upper side of said base being provided with a large dial, said small dial cooperating with said large dial to show the angle of rotation of said connector relative to said base.
5. The stereotactic apparatus as claimed in claim 1, wherein a ball seat is provided at the other end of said connector, and a connecting ball is provided at an end of said guide rail, said connecting ball being fitted to said ball seat.
6. The stereotactic apparatus of claim 5, further comprising a first fastening bolt, said first fastening bolt being threaded through said ball seat, said first fastening bolt being adapted to compress said connecting bulb; And/or, the connecting ball head is in interference fit with the ball seat.
7. The stereotactic apparatus of claim 1, further comprising a second fastening bolt screwed to said bracket, said second fastening bolt for fixing said bracket relative to the guide rail; and/or the bracket is in clearance fit with the guide rail; the guide device is connected with the bracket through a clamping groove structure.
8. The stereotactic apparatus of claim 1, wherein said chassis has an arcuate slot, said connector ball seat being embedded in said arcuate slot; And/or the chassis is provided with a first angle score line, the rotating disk is provided with a second angle score line, and the second angle score line is matched with the first angle score line so as to display the rotating angle of the rotating disk relative to the chassis; And/or, the arch arm of the arch guide rail is provided with a third angle score line, and the sliding block adapter is provided with a sliding block pointer, and the sliding block pointer is matched with the third angle score line so as to display the rotation angle of the sliding block adapter relative to the arch guide rail.

Description

Stereotactic device Technical Field The invention relates to the field of medical appliances, in particular to a three-dimensional orientation device. Background The stereotactic head frame is a common basic tool for neurosurgery minimally invasive surgery and has wide application in the aspect of treating non-functional diseases of the nervous system. The traditional stereotactic headstock has the greatest characteristics of high positioning precision, and the positioning precision can reach the level of sub-millimeter generally. The defects of the traditional brain stereotactic head frame are obvious, and the operation is complicated. In clinical practice, doctors need to fix a metal stereotactic head frame with a staff gauge on the head of a patient through four special large-sized head nails. In the fixing process, at least two doctors need to closely cooperate to complete a series of operations such as headstock righting, local anesthesia, head nail fixing and the like, and great manpower and time are consumed. The accurate installation of the stereotactic head frame can generally directly determine whether the operation is successful, and the installation accuracy of the stereotactic head frame can greatly influence the point position penetrated by the puncture needle. At present, the traditional stereotactic head frame installation mode generally depends on whether a doctor visually observes the stereotactic head frame to be centered and horizontal or not, completely depends on the clinical experience of the doctor, and cannot quantitatively evaluate the operation precision. In addition, the patient needs to wear a heavy metal headstock before CT (Computed Tomography, i.e. electronic computer tomography) scanning is completed until surgery is completed, and the fixed head nails of the stereotactic headstock can bring huge pains to the patient in the treatment process, meanwhile, the stereotactic headstock is very expensive, the price of the domestic precise complete brain stereotactic equipment is more than 20 ten thousand yuan, the imported equipment is more up to million yuan level, and the popularization and the use of the stereotactic headstock in basic hospitals are severely limited. Disclosure of Invention The invention aims to overcome the defect that a patient needs to wear a traditional stereotactic head frame all the time before CT scanning operation is finished in the prior art, and provides a stereotactic device. The invention solves the technical problems by the following technical scheme: The stereotactic device is used for stereotactic puncture operation and comprises a base, a connector, a guide rail, a support and a guide device, wherein the base is used for being fixed on a head, one end of the connector is pivoted on the base, the connector can be detached relative to the base, the guide rail is connected with the other end of the connector in a ball mode, one end of the support is arranged on the guide rail in a sliding mode, the guide device is embedded into the other end of the support, and the guide device is used for guiding the direction of a puncture channel of stereotactic puncture operation. In this scheme, through adopting above structure, through utilizing the base to fix stereotactic device to the head, the connector adopts detachable connection with the base to the patient can be torn down the connector from the base before CT scanning operation is accomplished, can reduce the burden of patient's head. The connector is pivoted on the base, so that the connector can rotate relative to the base, and the working range of the stereotactic device can be increased. The guide rail is in ball joint with the connector, so that the guide rail can swing flexibly relative to the connector, and the flexibility and the working range of the three-dimensional orientation device can be further improved. The guide device is mounted to the sliding rail through the support, and can move relative to the sliding rail, so that the flexibility and the working range of the three-dimensional orientation device can be further improved, and the accurate, flexible and quick positioning of the puncture operation is facilitated. The three-dimensional orientation device has simple structure, convenient use and low cost. Preferably, the axis of the guide is parallel to the axis of the guide rail. In this scheme, through adopting above structure, the axis of director is parallel with the axis of guide rail to the puncture passageway direction of the control puncture operation of being convenient for. Preferably, one end of the connector is sleeved on the connecting shaft of the base, the three-dimensional orientation device further comprises a tightening nut, the tightening nut is rotatably arranged on the connecting shaft, and the tightening nut is used for compressing and fixing the connector. In this scheme, through adopting above structure, utilize to tighten up nut fixed connector, simple structur