CN-121987180-A - Rehabilitation evaluation system for fracture and complication integrated synchronous intervention

CN121987180ACN 121987180 ACN121987180 ACN 121987180ACN-121987180-A

Abstract

The invention relates to the technical field of rehabilitation evaluation, and discloses a rehabilitation therapy evaluation system for integrated synchronous intervention of fracture and complications, which comprises a sensing array, a reference sensing node and an evaluation unit, wherein the sensing array is arranged on a patient side limb and comprises an impedance monitoring electrode and a heat flow sensing unit, the reference sensing node is used for acquiring a system metabolism reference parameter, the evaluation unit establishes a synchronous acquisition triggering reference according to characteristic deviation of interface capacitance along with load, normalizes heat flow density relative to the system metabolism reference parameter, calculates a response characteristic value representing microcirculation remodelling capacity, and simultaneously identifies a vascular reflux state.

Inventors

LV HONGBIN
XIANG JIN
WAN LIYANG
PAN XIYANG

Assignees

居天智慧(深圳)有限公司

Dates

Publication Date: 20260508
Application Date: 20260203

Claims (10)

1. The rehabilitation therapy evaluation system for integrated synchronous intervention of fracture and complications is characterized by comprising a sensing array, a reference sensing node and an evaluation unit: the sensing array is arranged on the affected limb and comprises an impedance monitoring electrode and a heat flow sensing unit; The reference sensing node is arranged in a non-affected area at the proximal end of the affected limb and is used for acquiring the metabolic reference parameters of the system; The evaluation unit is electrically connected with the sensing array and the reference sensing node and is used for executing the following steps: Step 101, inverting the real-time pressure received by a sensing array through the initial turning point of the characteristic offset based on the characteristic offset generated by the skin contact interface polarization charge response along with load excitation monitored by an impedance monitoring electrode, and taking the real-time pressure as a synchronous acquisition trigger reference for performing time mark alignment on a metabolic heat flow signal acquired by a heat flow sensing unit; 102, acquiring a system metabolism reference parameter acquired by a reference sensing node, acquiring a metabolism heat flow density in a corresponding time window according to a synchronous acquisition triggering reference, performing differential normalization processing on the metabolism heat flow density relative to the system metabolism reference parameter, and calculating to obtain a local response characteristic value representing local microcirculation remodeling capacity so as to eliminate compensatory gait interference generated by rehabilitation training of affected limbs; Step 103, extracting a reset slope of the phase angle along with the frequency change according to the biological impedance vector obtained by the impedance monitoring electrode under the multi-frequency excitation, and identifying the vascular reflux state of the affected limb by calculating the frequency response difference vector between the low-frequency excitation and the high-frequency excitation and analyzing the discrete degree of the spatial distribution of the frequency response difference vector so as to distinguish blood stasis caused by the obstruction of deep venous circulation from interstitial effusion caused by the postoperative inflammation of fracture.
2. The rehabilitation therapy assessment system for integrated synchronous intervention of fracture and complications according to claim 1, wherein the assessment unit uses the electrical response characteristics of the electric double layer capacitor of the sensor contact interface along with the physical load to convert the acquired interface polarization perturbation signal into a time reference of load excitation when executing step 101, aligns the starting moment of the load excitation with the physiological stress signal captured by the sensing array based on the time reference, and identifies whether the phase shift is caused by the slow stress response of the callus or asynchronous stress response of the sensing link.
3. The rehabilitation therapy evaluation system for integrated synchronous intervention of fracture and complications according to claim 1, wherein the reference sensing node is arranged in a non-affected area at the proximal end of a limb at the affected side and used for acquiring whole blood vessel output fluctuation information which is not directly affected by rehabilitation training, and when the evaluation unit executes step 102, the evaluation unit uses a system metabolism reference parameter as a reference value to perform ratio operation on the metabolic heat flow density acquired by the sensing array so as to obtain a local response characteristic value representing local bone tissue remodeling capacity.
4. The rehabilitation therapy evaluation system for integrated synchronous intervention of fracture and complications according to claim 1 is characterized in that the sensing array comprises a flexible composite substrate, the impedance monitoring electrodes and the heat flow sensing units are integrated in the flexible composite substrate in a staggered mode in a matrix mode, and the evaluation unit is used for extracting a heat flow change peak value generated by the heat flow sensing units in a load excitation transient state and determining microcirculation compensation indexes of a fractured end by combining the synchronous biological impedance change rate obtained by the impedance monitoring electrodes.
5. The rehabilitation therapy evaluation system for integrated synchronous intervention of fracture and complications according to claim 1, wherein the evaluation unit extracts bioimpedance vectors at different frequencies according to multi-frequency excitation, identifies nonlinear variation characteristics of reset slope with frequency, and determines the system state as a circulatory risk caused by vascular occlusion by using sensitivity of low-frequency signals to extracellular pathways and electrical characteristics of high-frequency signals penetrating cell membranes.
6. The rehabilitation therapy evaluation system for integrated synchronous intervention of fracture and complications according to claim 1, wherein the sensing array further comprises a pressure sensing unit, the evaluation unit is used for acquiring an interface pressure state received by the sensing array, starting calculation of a local response characteristic value when the interface pressure state is in a preset effective rehabilitation load interval, and outputting a correction instruction for rehabilitation actions when the interface pressure state exceeds a preset safety threshold.
7. The rehabilitation therapy evaluation system for integrated synchronous intervention of fracture and complications according to claim 1, wherein the sensing array is arranged in a fracture end coverage area of a patient side limb and is used for collecting physiological stress signals excited by a load, wherein the physiological stress signals comprise electrical disturbance signals generated by tissue displacement induced by the load, and the evaluation unit quantitatively evaluates mechanical rigidity of poroma by using the electrical disturbance signals.
8. The rehabilitation therapy assessment system for integrated and synchronous intervention of fracture and complications according to claim 1, wherein the assessment unit calculates a frequency response difference vector : , wherein, For low frequency complex phase angle vectors with frequencies in the range of 10Hz to 1kHz, For high-frequency complex phase angle vector with frequency in 100kHz to 1MHz, the evaluation unit is configured to monitor the frequency response difference vector And evaluating the association of microvascular permeability changes with thrombosis.
9. The rehabilitation therapy evaluation system for integrated synchronous intervention of fracture and complications according to claim 1, wherein the evaluation unit is used for establishing a multi-dimensional healing indication model by combining the local response characteristic value and the reset slope, carrying out staged identification on the fracture healing state based on the multi-dimensional healing indication model, and synchronously generating driving parameters of the physical intervention module according to the identification result.
10. The rehabilitation therapy evaluation system for integrated synchronous intervention of fracture and complications according to claim 1, further comprising an auxiliary sensing unit arranged at a symmetrical part of the healthy limb, wherein the evaluation unit is used for acquiring physiological parameters of the healthy limb acquired by the auxiliary sensing unit and performing differential operation with physiological parameters of the affected limb acquired by the sensing array.

Description

Rehabilitation evaluation system for fracture and complication integrated synchronous intervention Technical Field The invention relates to a rehabilitation therapy evaluation system for fracture and complication integrated synchronous intervention, and belongs to the technical field of rehabilitation evaluation. Background In the current dynamic rehabilitation evaluation, physical asynchronism exists between external mechanical excitation and tissue physiological response, fracture rehabilitation evaluation relies on biomechanical analysis and microcirculation compensation response of fracture ends under a stress state, a pressure sensor is generally arranged in a rehabilitation support to collect load, a sensing electrode is used for monitoring metabolic heat flow and biological impedance of the limb surface to represent healing rigidity and vascular permeability, an electrode and skin contact interface form an electric double layer with charge dynamic balance, the external load acts on the limb to generate micro displacement, transient fluctuation of the polarization state of the contact interface is caused, displacement current is generated, stress is conducted on heterogeneous biological tissues to generate physical damping loss, and a heterogeneous sensor conditioning link has group delay difference, so that the load excitation and the electrophysiological response generate intrinsic path asynchronism. Because the underlying hardware perceives the link to have intrinsic time delay deviation, adopt the logical compensation of back-end algorithm to become the improvement direction of the prior art, for example, grant Chinese patent application publication No. CN120783997B discloses a fracture postoperative rehabilitation evaluation system based on data feedback, utilize long-short-period memory network to merge and calculate gait dynamics, skin temperature change and microvibration multimode data, estimate the tolerance boundary of rehabilitation stress, this scheme synchronization mechanism stays in the time scale alignment of software layer, the transient disturbance produced by the intrinsic electrical effect of the biophysical interface is not captured, lack the zero time scale reference of physical layer, it is difficult to distinguish whether the phase deviation is from the poroma stress response delay or the time scale drift of sensing link, the data feedback soft synchronization strategy can not eliminate the dynamic asynchronism produced by the fluctuation of tissue physical parameters under the dynamic scene of wearing tightness change or limb posture switching of rehabilitation support, evaluate the index altitude dispersion, it is difficult to provide unique healing safety boundary, when calculating the phase correlation index of load excitation and physiological response, the phase deviation is difficult to distinguish from the change of poroma mechanical strength or the time scale reference drift of sensing link, promote the sampling frequency and can not eliminate the dynamic asynchronism caused by the fluctuation of tissue physical parameters, it is difficult to guarantee the nonlinear index of wearing change of limb fluctuation by adopting fixed deviation quantity to face to compensate support or limb posture change. Therefore, how to construct a physical zero time standard reference by utilizing the intrinsic electrical effect of the biophysical interface eliminates index dispersion caused by sensing link asynchronization, and becomes the technical problem to be solved by the invention. Disclosure of Invention In order to solve the problems in the background technology, the technical scheme of the invention is as follows, a rehabilitation therapy evaluation system for integrated synchronous intervention of fracture and complications comprises a sensing array, a reference sensing node and an evaluation unit: the sensing array is arranged on the affected limb and comprises an impedance monitoring electrode and a heat flow sensing unit; The reference sensing node is arranged in a non-affected area at the proximal end of the affected limb and is used for acquiring the metabolic reference parameters of the system; The evaluation unit is electrically connected with the sensing array and the reference sensing node and is used for executing the following steps: Step 101, inverting the real-time pressure received by a sensing array through the initial turning point of the characteristic offset based on the characteristic offset generated by the skin contact interface polarization charge response along with load excitation monitored by an impedance monitoring electrode, and taking the real-time pressure as a synchronous acquisition trigger reference for performing time mark alignment on a metabolic heat flow signal acquired by a heat flow sensing unit; 102, acquiring a system metabolism reference parameter acquired by a reference sensing node, acquiring a metabolism heat flow density in a corres