A positioning head frame system for gamma knife surgery

Abstract

In order to solve the problem that the head frame may cause the relative position of the head frame worn by the patient and the patient's head to change due to the collision behavior of the head frame, which increases the positioning error of the early intracranial lesion position and causes inefficient or ineffective treatment in the later stage, the present invention provides a positioning head frame system for gamma knife surgery. The system includes an adapter for providing support for the head of the patient wearing the head frame in different postures and cooperating with the head frame. The adapter is equipped with a first support member. When the wearer is in an upright state, the first support member contacts the parietal bone in a manner that can provide the adapter with a supporting force in the vertical axis direction based on the human anatomical posture. Based on the supporting effect of the first support member, the adapter is provided with a first detection component for monitoring the distance between the adapter and the head frame, a second detection component for monitoring the distance between the adapter and the human body, and a remote server for processing data.

Description

Technical Field

[0001] The invention relates to the technical field of medical machinery, and in particular to a positioning head frame system for gamma knife surgery. Background Art

[0002] Gamma-ray stereotactic radiosurgery system is a large-scale equipment that integrates stereotactic technology and radiosurgery technology, mainly used to treat cranial and brain diseases. It has the advantages of no craniotomy and less damage. Gamma knife is a product of modern high technology at the end of the 20th century. As a new non-invasive treatment method, it is a revolutionary breakthrough in the history of medical treatment. Because the radiation beam passes through normal tissue from all directions, the radiation dose received by normal tissue is very dispersed. Each unit volume of normal tissue is only exposed to instantaneous radiation, so the normal tissue is protected, and the normal tissue outside the target is only exposed to uniform and weak doses. As long as the focus is on the lesion, the lesion can be destroyed at one time as accurately as a scalpel, achieving a magical effect without trauma, bleeding, infection, pain, rapid, safe and reliable. Before performing Gamma Knife surgery on the head, MRI is required to determine the location of the lesion in the patient's skull. The usual procedure is to fix the Gamma Knife surgery positioning head frame to the patient's head, then have the patient lie flat on the testing table of the MRI equipment, place the patient's head together with the positioning head frame in the head coil of the testing table, and then perform imaging to determine the location of the lesion in the patient's skull through the imaging results.

[0003] Most of the gamma head frames in the prior art are connected to the skull in a rigid manner. A Chinese patent with patent number CN212438607U discloses a gamma knife head frame for nuclear magnetic resonance. The gamma knife head frame for nuclear magnetic resonance includes a main body, a clamping structure and a connecting structure. The main body is used to be placed in the head coil of the nuclear magnetic resonance device, and is provided with a receiving space for accommodating the head with the positioning head frame installed. The clamping structure is arranged on the main body, and is used to clamp the head coil so that the main body and the head coil are fixed. The connecting structure is arranged on the main body, and is used to detachably connect the positioning head frame to the main body. The clamping structure fixed to the skull with steel nails is more commonly used.

[0004] The purpose of using various rigid fixation methods in the head frame is mainly to fix the relative position of the head and provide accurate positioning for the detection or treatment equipment. When the patient is being tested, rested or treated, in order to maintain the correct posture of the patient so that relevant operations can be performed, the patient is often in a lying state. However, the neck of the patient in this state is suspended in the air, and the head relies on the head frame to stabilize on the bed. This posture will cause the patient to frequently change the body posture to increase the blood supply between the head, neck and body, and increase their own comfort. Moreover, this kind of dynamic change of the body cannot be controlled by the patient's own will and has a bad effect on the patient's treatment, such as increasing the positioning error of the pathological tissue detection. Even if the patient is in an upright state, since the patient cannot accurately assess the head circumference after wearing the head frame, there is a great possibility that the head frame will conflict with the surrounding environment when performing personal activities during rest breaks, for example, turning around in a small space will cause the head frame to hit the wall. The above behaviors will cause the relative position of the head frame worn by the patient to change with the patient's head, resulting in an increase in the early positioning error, resulting in inefficient or ineffective treatment in the later stage. Gamma knife treatment is a precision treatment, and patients hope to pay a relatively high cost to receive more precise treatment. The head frame is expensive, and adding a certain number of detectors will have little impact on the cost. The installation of the head frame is completed by the technician, and it is different on each person's head. When the final evaluation results are made, the installation reasons cannot be excluded, resulting in the inability to accurately evaluate the results and form useful data for head frame improvement. In fact, in the objective, scientific and intelligent gamma knife surgery process, there is no need to introduce technician experience variables.

[0005] Based on this, the present invention provides a positioning head frame system for gamma knife surgery.

[0006] In addition, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making the present invention, but due to space limitations, not all details and contents are listed in detail. However, this does not mean that the present invention does not have the characteristics of these prior arts. On the contrary, the present invention already has all the characteristics of the prior art, and the applicant reserves the right to add relevant prior art to the background technology. Summary of the invention

[0007] The present invention provides a positioning head frame system for gamma knife surgery, comprising an adapter for providing support for the head of a patient wearing the head frame in different postures and cooperating with the head frame, the adapter being configured with a first support member, when the wearer is in an upright state, the first support member contacts the parietal bone in a manner capable of providing the adapter with a supporting force in a vertical axis direction based on the human anatomical posture, wherein, based on the supporting effect of the first support member, the adapter is provided with a first detection component for monitoring the distance between the adapter and the head frame, a second detection component for monitoring the distance between the adapter and the human body, and a remote server for processing data, when the patient wearing the head frame initially wears the adapter, the remote server can confirm the relative positions between the adapter, the head frame and the human head based on the first detection component and the second detection component.

[0008] When the first detection component detects an offset between the adapter and the head frame, the remote server determines the relative position relationship between the adapter and the human head based on the position information of the adapter relative to the human head transmitted by the second detection component, and estimates the offset of the adapter relative to the human head based on the relative position relationship.

[0009] According to a preferred embodiment, when the position information of the adapter relative to the human head transmitted by the second detection component is consistent with the initial value of the position information of the adapter relative to the human head, the remote server can estimate the offset of the head frame relative to the human head based on the offset of the relative position relationship between the adapter and the head frame detected by the first detection component.

[0010] According to a preferred embodiment, when the position information of the adapter relative to the human head transmitted by the second detection component is inconsistent with the initial value of the position information of the adapter relative to the head frame, the remote server controls the first detection component to detect the relative position relationship between the adapter and the head frame and estimates the position of the head frame relative to the human head based on the data transmitted by the first detection component and the second detection component. The offset of the relative position relationship between the adapter and the head frame detected by the second detection component can be used to evaluate the position of the head frame relative to the human head.

[0011] Advantages of this technical solution:

[0012] The head frame is set on the patient's head. When the patient undergoes MRI, the head frame can engage with the fixing components of the MRI machine so that the patient's head can be fixed on the detection bed of the MRI machine. During the examination, the patient's head will shift due to changes in the environment or breathing movements, which will cause great errors in the positioning of diseased tissue in the brain during MRI detection. The above problems will not occur if the head of the patient wearing the head frame is fixed on the MRI detection bed. During the MRI detection process, the presence of metal sensors will affect the MRI detection process. Therefore, the head frame cannot be set with sensor detection components.

[0013] The gamma ray treatment process mainly includes two processes: MRI detection for locating brain diseased tissue and radiation therapy. During these two processes, the patient needs to wear a head frame all the time.

[0014] Based on the problem of whether the head frame is displaced when the patient wears it, this technical solution proposes an adapter that can be put on the head frame. The adapter indirectly obtains the distance between the head and the head frame by detecting the distance between it and the head and the distance between it and the head frame. On the one hand, the adapter can reduce the impact of external force on the head frame; on the other hand, the adapter can monitor the position of the head frame. Based on the position offset of the head frame monitored by the adapter, medical staff can choose whether to readjust the head frame based on their own judgment to prevent gamma ray positioning errors caused by the offset of the head frame.

[0015] According to a preferred embodiment, the adapter can be configured as a helmet. The adapter has the same appearance as the helmet and wraps around the head.

[0016] According to a preferred embodiment, when the position information of the adapter relative to the human head transmitted by the second detection component is inconsistent with the initial value of the position information of the adapter relative to the human head, the remote server can prompt medical staff to make adjustments based on the information.

[0017] According to a preferred embodiment, the first detection component includes a magnetic emission component and a magnetic induction component, wherein, with reference to an initial detection value, the remote server confirms the offset between the adapter and the human head based on the change in the magnetic field component transmitted by the first detection component.

[0018] According to a preferred embodiment, the second detection component includes at least one light-emitting component and at least one feedback component capable of generating output information related to displacement, wherein the feedback component is capable of providing the remote server with an amount of light for evaluating changes in the head position between the light-emitting component and the feedback component.

[0019] According to a preferred embodiment, based on the three directions in which the head frame surrounds the human head, the second detection component is provided with three light-emitting components and three feedback components, wherein a combination of a light-emitting component and a feedback component can perform displacement detection on a portion of the head frame in one direction.

[0020] According to a preferred embodiment, the adapter is also provided with a third detection component for sensing vibrations. The remote server can confirm the probability of the adapter or the head frame being offset based on the vibration amplitude transmitted by the third detection component, and activate the first detection component and the second detection component.

[0021] According to a preferred embodiment, the remote server is preset with a vibration threshold, which is preset according to the degree of fit of the head frame worn by the patient. The higher the degree of fit, the higher the corresponding vibration threshold. The first detection component and the second detection component are activated in response to the vibration signal detected by the third detection component exceeding the vibration threshold, thereby avoiding energy consumption caused by long-term standby of the first detection component and the second detection component, and extending the use time.

[0022] Further, the remote server is provided with an upright vibration threshold, a lateral vibration threshold and a supine vibration threshold. The first support and the second support are both provided with mechanical sensors to detect the forces of the first support and the second support, so as to judge the patient's body position. When the remote server analyzes the patient in an upright position according to the forces of the first support and the second support, the upright vibration threshold is adopted. The lateral vibration threshold and the supine vibration threshold are the same. According to the structural setting of the head frame and the fitting relationship with the patient's head, when the patient is in an upright position, a lateral position and a supine position, the displacement of the head frame caused by the same vibration is different. The inventor found that when the patient is subjected to the same amplitude vibration, when the patient is in a supine position, the displacement is greater than the displacement when in a lateral position, and when the patient is in a lateral position, the displacement is greater than the displacement in an upright position. Therefore, the upright vibration threshold is greater than the lateral vibration threshold, and the lateral vibration threshold is greater than the supine vibration threshold, so that when the patient is subjected to vibration, the first detection component and the second detection component can be accurately and appropriately started according to the patient's body position.

[0023] According to a preferred embodiment, the second detection component can be a hoop of a distance detection component for monitoring the distance between the adapter and the head frame.

[0024] According to a preferred embodiment, the adapter is configured with a second support member having two support positions to provide neck support for a human body lying sideways or lying flat, wherein the first support position of the second support member can correspond to the first cervical vertebra, the second cervical vertebra or the third cervical vertebra, and the second support position of the second support member can correspond to the fourth cervical vertebra, the fifth cervical vertebra or the sixth cervical vertebra, and the relative heights of the first support position and the second support position can be adjusted when the human body posture changes.

[0025] According to a preferred embodiment, the adapter is provided with a connector along the vertical axis so that the adapter divided into two parts can gradually move closer from both sides of the patient wearing the gamma head frame to the inner side of the patient wearing the gamma head frame along the frontal axis direction.

[0026] According to a preferred embodiment, a support for fixing the device to the patient's head includes at least two fixing grooves. The fixing grooves are used to receive fixing pins that fix the support to the bones in the patient's head. The support includes two front pillars and two rear pillars extending along the longitudinal axis X. The support also includes a front pillar connection, a rear pillar connection and two side pillar connections. The front pillar connection is arranged at the front of the head, and the two front pillars are connected to the front pillar connection. The rear pillar connection is arranged at the rear of the head, and the two rear pillars are connected to the rear pillar connection. A front pillar and a rear pillar are connected to a side pillar connection. The side pillar connection is arranged as a side pillar connection extending from the side of the head. The side pillar connection is axially displaced along the axis X in a direction opposite to the front pillar connection and the rear pillar connection, and the side pillar connection extends in a transverse plane A.

[0027] The front and rear strut connections are axially displaced relative to each other along axis X and extend along axis X in another transverse plane B separate from transverse plane A.

[0028] According to a preferred embodiment, the front and rear strut connections are slightly displaced relative to each other along axis X. Preferably, the front strut connection is arranged in a plane above the rear strut connection, thereby facilitating adaptation to heads of different sizes and shapes.

[0029] The front pillar connection portion, the rear pillar connection portion, and the side pillar connection portion extend in a direction perpendicular to the front pillar and the rear pillar. The front pillar connection portion is connected to two of the front pillars. The rear pillar connection portion is connected to two of the rear pillars. Each of the side pillar connections is connected to one of the front pillars and one of the rear pillars.

[0030] The two front support posts are respectively arranged on both sides of the patient's face. The front support post connection portion is arranged on the upper part of the patient's forehead in a manner of extending on the upper part of the patient's forehead and connecting with the two front support posts. The front support post connection portion of the bracket extends on the upper part of the forehead so that the bracket can be fixed to the bone of the forehead. In addition, the patient's face is unobstructed, and the patient can carry out activities such as oxygen inhalation during treatment or diagnosis while wearing the bracket.

[0031] According to a preferred embodiment, the front support and the rear support respectively have an upper end and a lower end. The front support connecting portion and the rear support connecting portion respectively have a first end and a second end.

[0032] Preferably, the front support connecting portion is connected to the upper end of the front support. The first end of the front support connecting portion is connected to the upper end of one of the front supports, and the second end of the front support connecting portion is connected to the upper end of another of the front supports. The patient's face, especially the mouth and nose, is completely exposed to the doctor's field of vision, which is convenient for surgery.

[0033] Preferably, the rear support connecting portion is connected to the upper end of the rear support. The first end of the rear support connecting portion is connected to the upper end of one of the rear supports, and the second end of the rear support connecting portion is connected to the upper end of another of the rear supports. The rear area of ​​the patient's head is unobstructed, so that the area is exposed to the doctor's field of vision, which is convenient for the doctor to operate.

[0034] Preferably, the side support connecting portion extends between the lower end of one front support and the lower end of one rear support, so that one side support connecting portion is connected to the lower end of one front support and the lower end of one rear support, respectively. The upper ends of the two front supports are connected through the first end and the second end of the front support connecting portion, the upper ends of the two rear supports are connected through the first end and the second end of the rear support connecting portion, and the lower end of one front support and the lower end of one rear support are connected through one side support connecting portion. This ensures that the patient's face, the side of the head, and the back area of ​​the head are free of obstructions.

[0035] Beneficial effects of this technical solution:

[0036] In the present invention, the upper ends of the two front pillars are connected by the first end and the second end of the front pillar connecting part, the upper ends of the two rear pillars are connected by the first end and the second end of the rear pillar connecting part, and the lower end of one front pillar and the lower end of one rear pillar are connected by one side pillar connecting part, thereby ensuring that the patient's face, side of the head and back of the head are unobstructed, exposing these areas to the doctor's field of vision, and facilitating activities such as radiotherapy.

[0037] Preferably, the front support connecting part is provided with at least two fixing slots so that the front support connecting part can be fixed to the bone in the forehead. Preferably, the front support connecting part is provided with at least four fixing slots. When the bracket is fixed to the bone, it is not necessary to install all the fixing pins in the fixing slots according to the specific situation. The multiple fixing slots provide the bracket with a variety of functions.

[0038] Preferably, the rear support connecting portion is provided with at least two fixing grooves. Preferably, the rear support connecting portion is provided with at least four fixing grooves. When the bracket is fixed to the bone, according to a specific situation, it is not necessary to install all the fixing pins in the fixing grooves. Multiple fixing grooves provide the bracket with a variety of functions.

[0039] Preferably, the front support connection part is arranged above the patient's eyes. The support can be fixed to the bone in the patient's forehead, and the face is exposed to the doctor's field of vision, which is convenient for the doctor to operate in the exposed area during surgery.

[0040] Preferably, the side support connection part is arranged at the lower part of the ear of the patient's head. The upper area of ​​the patient's ear is exposed, which is convenient for surgery, radiotherapy, etc.

[0041] Preferably, the support has a curved shape suitable for the shape of the head. Therefore, the outer dimensions of the support can be minimized, making the support suitable for a variety of medical devices, especially some small medical devices.

[0042] Preferably, the support is made of a composite material. The composite material makes the support electromagnetically inert, thereby reducing or eliminating artifacts during imaging. The support may also be made of any other material that is sufficiently rigid.

[0043] Preferably, the front support and the front support connecting portion are arranged in relative positions in such a manner that the patient's face can be substantially exposed.

[0044] Preferably, the support has an outer width α, α=24 cm. The support is small enough and can be adapted to almost all heads of different sizes, thereby increasing the functional diversity of the support.

[0045] Preferably, each of the side support connecting portions comprises at least one fastening unit for detachably connecting the bracket to the orientation device, and the bracket is connected to the orientation device via the fastening unit.

[0046] The orientation device comprises a docking unit, and the bracket is detachably connected to the docking unit through the fastening unit. The detachable connection between the bracket and the docking unit provides a variety of bracket improvements. For example, the bracket can be used with other different types of medical devices. At the same time, the docking unit enables the bracket to be firmly connected to the orientation device.

[0047] Preferably, the docking unit comprises at least one ruler. The ruler is connected to the docking unit and is not affected by bending of the support when the support is fixed to the patient's head. Thus, the accuracy of the orientation device is independent of any possible bending that occurs in the support when the support is fixed to the head.

[0048] Preferably, the docking unit comprises at least one ruler connecting member. The ruler can be directly arranged on the docking unit or connected to the docking unit via the ruler connecting member, thereby improving the functional diversity of the bracket.

[0049] Beneficial effects of this technical solution:

[0050] In the present invention, the front support connecting portion is arranged in the plane above the rear support connecting portion, so as to facilitate adaptation to the heads of patients of different sizes and shapes and minimize the gap between the patient's head and the bracket; the bracket has an external width α, and the external dimensions of the bracket are also minimized, so that the bracket can easily adapt to various medical devices, such as small medical equipment suitable for MRI head coils, diagnosis and treatment, or operation of gamma knife devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a structural schematic diagram of an implementation mode provided by the present invention;

[0052] Figure 2 It is a side view structural schematic diagram of an embodiment provided by the present invention;

[0053] Figure 3 It is a structural schematic diagram of the adapter provided by the present invention.

[0054] Reference numerals list

[0055] 1: bracket; 2: fixing groove; 3: front support; 4: rear support; 5: front support connection part; 6: rear support connection part; 7: side support connection part; 8: upper end; 9: lower end; 10: orientation device; 11: first end part of front support connection part; 12: second end part of front support connection part; 13: first end part of rear support connection part; 14: second end part of rear support connection part; 15: fastening unit; 16 docking unit; 17 ruler; 18: ruler connection part; 19: guide arc; 20: guide arc needle drag; 21: fixing unit; 22: adapter; 221: first support member; 222: second support member. DETAILED DESCRIPTION

[0056] The following is a detailed description with reference to the accompanying drawings.

[0057] Throughout the application, the term "upper end" refers to the direction toward the patient's head, the term "lower end" refers to the direction toward the patient's biological feet, the term "front" means the portion located in front of or near the front of the patient's body, the term "rear" refers to the portion located toward the rear of the patient's body, and the term "side" refers to the direction of both sides of the patient's body. The terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] Example 1

[0059] like Figure 3 As shown, the adapter 22 can be a helmet.

[0060] The helmet is provided with flexible supporting members corresponding to the occipital bone and parietal bone of the human skull. Preferably, the supporting member can be a sponge.

[0061] The first detection component is a laser distance detection component. The first detection component is respectively arranged at the position of the adapter 22 corresponding to the parietal bone and the occipital bone of the human body.

[0062] The second detection component is a magnetic induction distance detection component. The second detection component is respectively arranged at the position of the adapter 22 corresponding to the parietal bone and the occipital bone of the human body.

[0063] The first detection component and the second detection component arranged at the parietal bone position of the human body respectively generate the distance between the adapter 22 and the head frame, and the distance between the adapter 22 and the head at the position, thereby obtaining the distance between the first group of head frames and the head.

[0064] The first detection component and the second detection component disposed at the occipital position of the human body respectively generate the distance between the adapter 22 and the head frame, and the distance between the adapter 22 and the head at the position, thereby obtaining the distance between the second set of head frames and the head.

[0065] When the distance between the second set of head frames and the head is significantly different from the distance between the first set of head frames and the head, there is a possibility of detection error, and the remote server will perform data detection again to achieve the purpose of calibrating the data.

[0066] According to a preferred embodiment, the adapter 22 is provided with a first support member 221, and when the wearer is in an upright state, the first support member 221 contacts the parietal bone in a manner that can provide a support force in a vertical axis direction based on the human anatomical posture for the adapter 22. The first support member 221 is located at a position of the adapter 22 corresponding to the parietal bone of the human head, and the first support member 221 can be a sponge or a spring.

[0067] Based on the supporting function of the first supporting member 221, the adapter 22 is provided with a first detection component for monitoring the distance between the adapter 22 and the head frame, a second detection component for monitoring the distance between the adapter 22 and the human body, and a remote server for processing data. When a patient wearing the head frame initially wears the adapter 22, the remote server can confirm the relative positions among the adapter 22, the head frame and the human head based on the first detection component and the second detection component.

[0068] When the patient initially wears the adapter 22, the adapter 22 obtains initial distance data through the first detection component and the second detection component.

[0069] When the first detection component detects that the adapter 22 is offset from the head frame, the remote server determines the relative position relationship between the adapter 22 and the human head based on the position information of the adapter 22 relative to the human head transmitted by the second detection component. Based on the relative position relationship, the remote server can estimate the offset of the adapter 22 relative to the human head.

[0070] For example, with the adapter 22 as the center, based on the initial vector information of the head frame detected by the first detection component and the initial vector information of the head detected by the second detection component, the relative position information of the head frame is obtained as (X, Y, Z). When the head frame is offset, that is, when the information of a certain coordinate system of the initial vector information is greater than α, based on the vector information detected by the first detection component and the second detection component at the same corresponding head position, the vector confidence after the head frame is offset is obtained as (X', Y', Z'), thereby obtaining the offset information of the head frame.

[0071] According to a preferred embodiment, the adapter 22 is also provided with a third detection component. The third detection component is capable of sensing vibration. When the third detection component senses vibration and obtains data related to the vibration amplitude, the third detection component sends the relevant data to the remote server. The remote server confirms that the adapter 22 or the head frame has a probability of being offset, and turns on the first detection component and the second detection component. For example, when the patient wears the adapter 22, if a head collision or bump occurs, the third detection component senses that the vibration amplitude exceeds the vibration threshold, that is, it is considered that there is a possibility of the head frame being skewed, and the remote server will turn on the first detection component and the second detection component. Preferably, the vibration threshold is greater than 2.

[0072] According to a preferred embodiment, the remote server is preset with a vibration threshold, and the vibration threshold is preset according to the degree of fit of the head frame worn by the patient. The higher the degree of fit, the corresponding vibration threshold is relatively high. The first detection component and the second detection component are activated in response to the vibration signal detected by the third detection component exceeding the vibration threshold, thereby avoiding energy consumption caused by long-term standby of the first detection component and the second detection component, and extending the use time. That is, the vibration threshold when the head frame fits the human head closer is higher than the vibration threshold when the head frame fits the human head farther.

[0073] Further, the remote server is provided with an upright vibration threshold, a lateral vibration threshold, and a supine vibration threshold. The first support member 221 and the second support member 222 are both provided with mechanical sensors to detect the forces of the first support member 221 and the second support member 222, so as to judge the patient's body position. When the remote server analyzes the patient in an upright position according to the forces of the first support member 221 and the second support member 222, the upright vibration threshold is adopted. In the upright state, the support member arranged at the parietal position, i.e., the first support member 221, bears the weight. At this time, the force detection result of the first support member 221 changes significantly, for example, from 0 to 50N, while the force detection result of the second support member 222 arranged at the occipital bone does not change substantially. At this time, the patient wearing the adapter 22 is in an upright position. Preferably, the vibration threshold of the patient in the upright position can be 10. The vibration threshold of the patient in the lateral position can be 5. The vibration threshold of the patient in the supine position can be 2.

[0074] The same is true for the vibration thresholds in the lateral position and the supine position. According to the structural setting of the head frame and the fit relationship with the patient's head, the displacement of the head frame caused by the same vibration is different when the patient is in the upright position, lateral position and supine position. The inventor found that when subjected to vibrations of the same amplitude, when the patient is in the supine position, the displacement is greater than the displacement when in the lateral position, and when the patient is in the lateral position, the displacement is greater than the displacement in the upright position. Therefore, the vibration threshold of the upright position is greater than the vibration threshold of the lateral position, and the vibration threshold of the lateral position is greater than the vibration threshold of the supine position, so that when the patient is vibrated, the first detection component and the second detection component can be accurately and appropriately activated according to the patient's body position.

[0075] Example 2

[0076] A support 1 for fixing to a patient's head during neurological diagnosis, stereotactic imaging or surgical treatment according to one embodiment of the present invention, such as Figure 1 As shown. The bracket 1 includes eight fixing slots 2. Preferably, the number of the fixing slots 2 included in the bracket 1 may not be equal to 8. The fixing slots 2 are distributed around the bracket 1. The fixing slots 2 are arranged at the front of the bracket 1 and the rear of the bracket 1. The fixing slots 2 can receive fixing pins that fix the bracket 1 to the bones in the head. The bracket 1 surrounds the patient's head. The bracket 1 includes two front pillars 3 and two rear pillars 4 extending along the axis X. In addition, the bracket 1 also includes a front pillar connecting portion 5 arranged at the front of the head and a rear pillar connecting portion 6 arranged at the rear of the head. The front pillar connecting portion 5 is connected to the upper ends of the two front pillars 3. The rear pillar connecting portion 6 is connected to the upper ends of the two rear pillars 4.

[0077] The lower end of one of the front pillars 3 and the lower end of one of the rear pillars 4 are connected to one of the side pillar connecting portions 7. The side pillar connecting portion 7 is axially displaced along the axis X in a direction relative to the front pillar connecting portion 5 and the rear pillar connecting portion 6. The side pillar connecting portion 7 extends in a transverse plane A, and the front pillar connecting portion 5 and the rear pillar connecting portion 6 extend in another transverse plane B separated from the transverse plane A along the axis X. The front pillar connecting portion 5, the rear pillar connecting portion 6 and the side pillar connecting portion 7 extend in a direction perpendicular to the front pillar 3 and the rear pillar 4. Preferably, the front pillar connecting portion 5 may be arranged in a plane above the rear pillar connecting portion 6 along the axis X, that is, the front pillar connecting portion 5 is axially displaced relative to the rear pillar connecting portion 6 along the axis X.

[0078] Each front pillar 3 and each rear pillar 4 includes an upper end 8 and a lower end 9. The upper end 8 is disposed above the lower end 9 relative to the patient. The front pillar connecting portion 5 is connected to the upper end 8 of the front pillar 3. The first end 11 of the front pillar connecting portion 5 is connected to the upper end 8 of one of the front pillars 3, while the second end 12 of the front pillar connecting portion 5 is connected to the upper end 8 of the other front pillar 3. The rear pillar connecting portion 6 is connected to the upper end 8 of the rear pillar 4, while the first end 13 of the rear pillar connecting portion 6 is connected to the upper end 8 of one of the rear pillars 4, and the second end 14 of the rear pillar connecting portion 6 is connected to the upper end 8 of the other rear pillar 4.

[0079] The side pillar connecting portion 7 is connected to the lower ends 9 of the front pillar 3 and the rear pillar 4 so as to extend between the lower end 9 of the front pillar 3 and the lower end 9 of the rear pillar 4 .

[0080] The support 1 is made of a composite material. Preferably, the support 1 is made of an electromagnetically inert composite material.

[0081] According to a preferred embodiment, the fixing grooves 2 are provided in the front pillar connection part 5 and the rear pillar connection part 6. The front pillar connection part 5 is provided with four fixing grooves 2, and the rear pillar connection part 6 is provided with four fixing grooves 2. Preferably, the number of fixing grooves 2 in the bracket 1 is at least four. The bracket 1 has an outer width α. Preferably, α=24 cm.

[0082] Example 2

[0083] Figure 2 An orientation device 10 is shown. The orientation device 10 comprises a docking unit 16, to which the support 1 is detachably connected. The docking unit 16 of the orientation device 10 is connected to a side support connection 7 of the support 1. Each side support connection 7 of the support 1 comprises a fastening unit 15, which can be connected to the docking unit 16. Preferably, each of the side support connections 7 is provided with at least one fastening unit 15.

[0084] The docking unit 16 includes a ruler 17 and a ruler connector 18, and the ruler 17 is connected to the ruler connector 18. The orientation device 10 includes a guide arc 19 and a guide arc needle drag 20, and the guide arc needle drag 20 is adjustably arranged on the guide arc 19. The docking unit 16 is also provided with a fixing unit 21. The fixing unit 21 can be connected to the operating table during surgery so that the orientation device 10 is fixed during surgery.

[0085] The support 1 includes two front pillars 3 and two rear pillars 4 extending along the longitudinal axis X. In addition, the support 1 includes a front pillar connection portion 5 provided at the front of the head and a rear pillar connection portion 6 provided at the rear of the head. The front pillar connection portion 5 is connected to the two front pillars 3, and the rear pillar connection portion 6 is connected to the two rear pillars 4. Figure 2 Schematic diagram of a bracket 1 is shown, the bracket 1 includes eight fixing slots 2 arranged in the front pillar connection part 5 and the rear pillar connection part 6. The side pillar connection part 7 is connected to the lower ends of the front pillar 3 and the rear pillar 4 respectively in a manner extending between the lower ends of the front pillar 3 and the rear pillar 4. The side pillar connection part 7 is axially displaced relative to the front pillar connection part 5 and the rear pillar connection part 6 along the axis X.

[0086] Preferably, the support 1 is made of an electromagnetically inert composite material.

[0087] The support 1 is connected to a directional device 10 for surgery. Preferably, the support 1 can be connected to and used with many other types of medical equipment. For example, the support 1 can be used in radiotherapy, surgery (with a gamma knife), ultrasound therapy or laser therapy.

[0088] The adapter is worn at the intermediate moment to detect the relative movement between the patient's head and the head frame, detect displacement deviation, and provide displacement deviation data to correct the dual coordinate system alignment calculation during treatment. In the calculation of the lesion position, the position of the head frame will be used as the zero position or standard position to obtain the coordinates of the lesion through the MRI image. During gamma knife treatment, the position of the head frame will also be selected as the zero position or standard position to calculate and restore the lesion position coordinates. However, in the existing related gamma knife medical process, there will be at least one day of preparation time between MRI confirmation of the lesion position and gamma knife treatment, which involves experts meeting to confirm the surgical plan, Preparation of related surgical instruments and other matters, so the patient needs to wear a head frame for a period of time during the process. Affected by the patient's body posture and head posture, there is actually a slight displacement between the head frame and the head. Although the head frame is used to fix the head, such slight displacement is still inevitable. In view of the particularity of gamma knife treatment, the radiation is also harmful to the normal cell tissue of the human body, and there is also a risk of burning cells. Therefore, for the treatment of this important part of the head, the risk of any slight error may increase exponentially. Therefore, in this scheme, the detection component configured on the adapter must be high-precision. However, a high-precision detection component means higher data throughput, higher computing processing and higher energy consumption, but at the same time, the adapter is a mobile device carried on the patient's head, and there is also an upper limit on weight and volume. Considering the patient's life needs, it is difficult to meet the high-precision detection items by configuring a mobile battery, but the accuracy of the data cannot be compromised, and there is a dilemma. Based on this, the adapter is also provided with a third detection component that senses vibration. The remote server can confirm the probability of the adapter or head frame being offset based on the vibration amplitude transmitted by the third detection component, and turn on the first detection component and the second detection component.

[0089] According to a preferred embodiment, the remote server is preset with a vibration threshold, which is preset according to the degree of fit of the head frame worn by the patient. The higher the degree of fit, the higher the corresponding vibration threshold. The first detection component and the second detection component are activated in response to the vibration signal detected by the third detection component exceeding the vibration threshold, thereby avoiding energy consumption caused by long-term standby of the first detection component and the second detection component, and extending the use time.

[0090] Further, the remote server is provided with an upright vibration threshold, a lateral vibration threshold and a supine vibration threshold. The first support and the second support are both provided with mechanical sensors to detect the forces of the first support and the second support, so as to judge the patient's body position. When the remote server analyzes the patient in an upright position according to the forces of the first support and the second support, the upright vibration threshold is adopted. The lateral vibration threshold and the supine vibration threshold are the same. According to the structural setting of the head frame and the fitting relationship with the patient's head, when the patient is in an upright position, a lateral position and a supine position, the displacement of the head frame caused by the same vibration is different. The inventor found that when the patient is subjected to the same amplitude vibration, when the patient is in a supine position, the displacement is greater than the displacement when in a lateral position, and when the patient is in a lateral position, the displacement is greater than the displacement in an upright position. Therefore, the upright vibration threshold is greater than the lateral vibration threshold, and the lateral vibration threshold is greater than the supine vibration threshold, so that when the patient is subjected to vibration, the first detection component and the second detection component can be accurately and appropriately started according to the patient's body position.

[0091] Based on the above configuration, the high-precision detection component can be automatically turned on under appropriate circumstances to accurately record micro-displacement information, so that when the patient undergoes gamma knife surgery, it can provide more accurate and complete micro-displacement data to the surgical monitoring system, so that the surgical monitoring system can accurately adjust the alignment relationship between the gamma knife and the patient's lesion position by sending prompt information to medical staff or directly controlling the relative position of the gamma knife and the head frame (by calculating the coordinate system of the gamma knife and the coordinate system of the head frame and finely correcting the micro-displacement data to obtain the alignment control data). Through this solution, the irradiation accuracy of the lesion position can be improved by 30%-40%.

[0092] It should be noted that the above-mentioned specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of the present invention, and these solutions also belong to the disclosure scope of the present invention and fall within the protection scope of the present invention. Those skilled in the art should understand that the present invention specification and its drawings are illustrative and do not constitute a limitation of the claims. The scope of protection of the present invention is defined by the claims and their equivalents. The present invention specification contains multiple inventive concepts, such as "preferably", "according to a preferred embodiment" or "optionally", all of which indicate that the corresponding paragraph discloses an independent concept, and the applicant reserves the right to file a divisional application based on each inventive concept. Throughout the text, the feature guided by "preferably" is only an optional method and should not be understood as a must-have setting. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A positioning head frame system for gamma knife surgery, comprising an adapter (22) for providing support for the head of a patient wearing the head frame in different postures and cooperating with the head frame, It is characterized in that The adapter (22) is provided with a first support member (221), and when the patient wearing the head frame is in an upright position, the first support member (221) contacts the parietal bone in a manner capable of providing the adapter (22) with a support force in a vertical axis direction based on a human anatomical posture, wherein: Based on the supporting function of the first supporting member (221), the adapter (22) is provided with a first detection component for monitoring the distance between the adapter (22) and the head frame, a second detection component for monitoring the distance between the adapter (22) and the human body, and a remote server for processing data. When a patient wearing a head frame initially wears the adapter (22), the remote server can confirm the relative positions between the adapter (22), the head frame and the human head based on the first detection component and the second detection component; When the first detection component detects that an offset occurs between the adapter (22) and the head frame, the remote server determines the relative positional relationship between the adapter (22) and the human head based on the positional information of the adapter (22) relative to the human head transmitted by the second detection component, and estimates the offset of the adapter (22) relative to the human head based on the relative positional relationship.

2. The positioning head frame system for gamma knife surgery according to claim 1, characterized in that: When the position information of the adapter (22) relative to the human head transmitted by the second detection component is consistent with the initial value of the position information of the adapter (22) relative to the human head, the remote server can estimate the offset of the head frame relative to the human head based on the offset of the relative position relationship between the adapter (22) and the head frame detected by the first detection component.

3. The positioning head frame system for gamma knife surgery according to claim 2, characterized in that: When the position information of the adapter (22) relative to the human head transmitted by the second detection component is inconsistent with the initial value of the position information of the adapter (22) relative to the head frame, the remote server controls the first detection component to detect the relative position relationship between the adapter (22) and the head frame and estimates the position of the head frame relative to the human head based on the data transmitted by the first detection component and the second detection component. The offset of the relative position relationship between the adapter (22) and the head frame detected by the second detection component can be used to evaluate the position of the head frame relative to the human head.

4. The positioning head frame system for gamma knife surgery according to claim 3, characterized in that: The first detection component comprises a magnetic emission component and a magnetic induction component, wherein, with an initial detection value as a reference, the remote server confirms the offset between the adapter (22) and the human head based on the change in the magnetic field component transmitted by the first detection component.

5. The positioning head frame system for gamma knife surgery according to claim 4, characterized in that: The second detection component includes at least one light-emitting component and at least one feedback component capable of generating output information related to displacement, wherein the feedback component is capable of providing the remote server with an amount of light for evaluating changes in head position between the light-emitting component and the feedback component.

6. The positioning head frame system for gamma knife surgery according to claim 5, characterized in that: Based on the three directions in which the head frame surrounds the human head, the second detection component is provided with three light-emitting components and three feedback components, wherein a combination of a light-emitting component and a feedback component can perform displacement detection on a part of the head frame in one direction.

7. The positioning head frame system for gamma knife surgery according to claim 6, characterized in that: The adapter (22) is also provided with a third detection component for sensing vibrations, and the remote server can confirm the probability of the adapter (22) or the head frame being offset based on the vibration amplitude transmitted by the third detection component, and activate the first detection component and the second detection component.

8. The positioning head frame system for gamma knife surgery according to claim 7, characterized in that: The second detection component comprises a hoop of a distance detection component for monitoring the distance between the adapter (22) and the head frame.

9. The positioning head frame system for gamma knife surgery according to claim 8, characterized in that: The adapter (22) is configured with a second support member (222) having two support positions to provide neck support for a human body lying sideways or supinely, wherein the first support position of the second support member (222) can correspond to the first cervical vertebra, the second cervical vertebra or the third cervical vertebra, and the second support position of the second support member (222) can correspond to the fourth cervical vertebra, the fifth cervical vertebra or the sixth cervical vertebra, and the relative heights of the first support position and the second support position can be adjusted when the human body posture changes.

10. The positioning head frame system for gamma knife surgery according to claim 9, characterized in that: The adapter (22) is provided with a connecting piece along the vertical axis, so that the adapter (22) divided into two parts can gradually move closer from the two sides of the patient wearing the gamma head frame to the inner side of the patient wearing the gamma head frame along the frontal axis direction.

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