72 results about "Intracranial hematoma" patented technology

The invention relates to an adsorption drainage device for residual harmful composition after the clearance of intracranial hematoma, which includes a tee body, a drainage catheter and a plurality of adsorbent tubes of different materials. The main body of the tee body is hollow tube shape, the back end of the tee body is provided with internal threads, and a drainage port is arranged on the lateral part of the back end. The drainage catheter is connected with the drainage port of the tee body. The adsorbent tube is arranged in the hollow tube of the main body of the tee body, and the exposing part at the front end of the adsorbent tube is a semicircular sacculus which is loaded with RPPGF polypeptide, complement component monoclonal antibody and ZnPP in a way of mixing. The back end of the absorbent tube is matched with the internal threads at the back end of the tee body by external threads. Therefore, the absorbent tube is fixed in the tee body. The outer diameter of the adsorbent tube is smaller than the inner diameter of the tee body, and a space for liquid to flow to the drainage catheter is arranged between the adsorbent tube and the tee body. The back end of the adsorbent tube is sealed with a cap without a hole. The adsorption drainage device can be used for being matched with a hematoma grinding puncture needle and be used after a minimally invasive hematoma removing operation and provides an instrument which effectively drains the residual harmful compositions for the hemorrhage hematoma clearance operation. The adsorption drainage device is applied to neurology, neurosurgery, emergency department, etc. for the therapy of intracranial hematoma.

The invention discloses a non-contact positioning auxiliary device used for the minimally invasive intracranial hematoma cleaning operation. The non-contact positioning auxiliary device comprises a fixed rack, a right-angle connecting rod, a right-angle connecting rod fixing shaft, a height adjusting device, a horizontal telescopic boom, a vertical telescopic boom, a vertical-direction laser alignment device and a horizontal-direction laser alignment device, wherein the far end of the horizontal telescopic boom is provided with the vertical-direction laser alignment device, the vertical-direction sector-shaped laser face emitted by the vertical-direction laser alignment device is vertical to the long shaft of the horizontal telescopic boom, a light source points to the downward direction, and a guiding datum line mark is provided; the far end of the vertical telescopic boom is provided with the horizontal-direction laser alignment device, the sector-shaped laser face emitted by the horizontal-direction laser alignment device can rotate along the optical axis of the laser through a rotation adjusting mechanism, and the sector-shaped laser face emitted by the horizontal-direction laser alignment device is enabled to be always vertical to the vertical-direction sector-shaped laser face through the right-angle-shaped adjusting booms. According to the non-contact positioning auxiliary device, the non-frame cantilever laser alignment guide technology is adopted, therefore, the puncture needle is accurately guided continuously during the operation; the non-contact design increases the visual operative field, and thus the steric hindrance in the puncture process is avoided.

The invention uses non-linear anisotropic diffusion filter to pre-treat the image based on the character of intracranial hematoma image, effectively removes noise and artefect and meeting the actual need of medical image treatment, adopts two-step image cutting process to skilfully remove the skull and non-brain tissue without image registering, guides the idea of entropy into the image cutting process to realize the two-dimensional entropy thresholding, adopts pixel grey and neighbourhood grey as parameters to cut the image. The invention reflects the grey information distribution and the image pixel neighborhood space related information, thereby effectively restraining the noise and removing the obstruction and unnecessary small structures; the operator of genetic algorithm is improved, and particularly the prematurity of genetic algorithm is prevented; and the self-adapting big variable operator is adopted to search the best threshold value by modified delaminated genetic algorithm.

The invention relates to a research of a volume measuring method for CT (Computer Tomography) image intracranial hematoma. Aiming at the characteristics of an intracranial hematoma CT image, Nonlinear anisotropic diffuse filtration is adopted on the preprocessing of the image for effectively removing noises and artifacts and meeting the practical requirement of medical image processing; two-step image segmentation processing is adopted on the image for skillfully removing the skull and non-brain tissue outside the skull without the operations of image registration, and the like; and the concept of entropy is introduced into image segmentation for realizing the two-dimensional entropy threshold, and pixel grayscale and neighborhood grayscale are used as parameters for segmenting an image, which not only reflects the grayscale information distribution, but also reflects the relevant information of a neighborhood space of an image pixel, thereby effectively inhibiting noises and suppressing interferences and unnecessary fine structures; all operators of a genetic algorithm are improved, and a self-adaptive large mutation operator is adopted particularly for solving the problem of prematurity existing in the genetic algorithm, i.e. the algorithm is prematurely converged into a non-global optimal point; and finally, an optimal threshold value is searched by an improved delamination genetic algorithm.

The invention discloses a multi-channel puncture needle for intracranial hematoma. The multi-channel puncture needle for intracranial hematoma comprises a rigid multi-channel intracranial hematoma remover body, a soft multi-channel intracranial hematoma remover body, a skull puncture fixing channel and a needle-shaped drill bit, wherein a sleeve is arranged on a through hole in the middle part ofthe rigid multi-channel intracranial hematoma remover body, the sleeve is formed by sleeving multiple layers of pipes, at least one fluid channel is formed in the side edge of a cylinder of the rigidmulti-channel intracranial hematoma remover body, and fluid inlets in one-to-one correspondence with the fluid channels of the rigid multi-channel intracranial hematoma remover body are formed in thesleeve. With the multi-channel puncture needle for intracranial hematoma, a doctor can see the state of intracranial hematoma in the process of treatment, the state of a patient in an operation can bebetter controlled, and a corresponding treatment means can be provided; two independent liquid inlet channels are designed in the wall of the sleeve, and different flushing modes can be selected according to different states of hematoma, so treatment means are enriched; and hematoma removal can be carried out through a hose in the flexible multi-channel intracranial hematoma remover body according to specific conditions.

The invention provides a precision stereoscopic positioner for minimally invasive paracentesis of intracranial hematoma. The precision stereoscopic positioner comprises a positioning device and a positioning belt. The positioning device comprises a support, a sliding part and a reference rod, the support comprises a top plate, a bottom plate and a connecting plate, the top plate opposite to the bottom plate is provided with a sliding hole and an angle positioning scale line, and the bottom plate is provided with three first reference rod positioning holes along the sliding hole and three firstdrainage tube positioning holes corresponding to the first reference rod positioning holes. The sliding part is mounted on the top plate through a bolt and is provided with a second reference rod positioning hole and a second drainage tube positioning hole at an interval, one end of the reference rod is inserted into the corresponding first reference rod positioning hole, the reference rod penetrates the sliding hole and the second reference rod positioning hole, and the positioning belt is mounted on the support. The precision stereoscopic positioner is capable of improving puncturing accuracy of the minimally invasive paracentesis of intracranial hematoma. The invention further provides a puncture positioning system for minimally invasive paracentesis of the intracranial hematoma.

The invention discloses an integral needling-drilling encephalic hematoma puncture drainage device. The integral needling-drilling encephalic hematoma puncture drainage device is characterized by comprising a T-joint, a drilling body, a limiting device, a cleaning rod, a drainage tube, a liquid inlet needle-shaped channel and a drilling sleeve of which a perforated cap limiter sleeves the T-joint,wherein the drilling body is inserted into the drilling sleeve of the T joint, and is fixed in cooperation with a groove in the drilling body sleeve through a lug I on the side face of the T-joint. The integral needling-drilling encephalic hematoma puncture drainage device has the beneficial effects that: a self-destruction function can be realized after the completion of skull drilling, so thatthe integral needling-drilling encephalic hematoma puncture drainage device cannot be reused from the structure, the effect of operation be affected by the pollution of a drill bit is avoided; moreover, liquid hematoma can be sucked and drained; saline is injected into a hematoma cavity through the drainage tube on a perforated cap in order to dilute and drain viscous hematoma; a hematoma liquefaction agent is injected into the remaining solid hematoma through an injection needle device channel until intracranial hematoma is removed.

The invention relates to a double-cross-surface laser-directional minimally-invasive cranial drill which is a positioning perforating drill for taking out intracranial hematoma and is provided with a machine body, a driving mechanism and a bit, wherein the driving mechanism is arranged in the machine body, and the bit is connected with an output shaft of the driving mechanism in a coaxial way. The machine body is provided with two cross planar light lasers of which the intersecting lines are collinear with bit axes. Preferably, one planar light laser is fixed with the machine body, and the other planar light laser is wound with the bit axes of the machine body to be in transitional fit and rotating connection. Under the guidance of a three-dimensional benchmark determined by the surface of the head part, the head surface drawing lines of the layer surface of a hematoma center in each direction are calculated out according to data on a CT (computed tomography) photo and are overlapped with head surface cross drawing lines through cross planar light emitted by the lasers so as to imitate noninvasive quick and easy positioning and perforating performed by hematoma on different panels.

A drainage device for intracranial hematoma cranium drilling is characterized by comprising a double-cavity catheter, a drainage tube, a dredging balloon, a drainage bag and a reverse flowing prevention tee joint. The double-cavity catheter is provided with a first tube cavity and a second tube cavity, wherein the first tube cavity and the second tube cavity are mutually isolated, the first tube cavity is used for drainage and connected with the drainage tube, and the second tube cavity is used for medicine injection and flushing and connected with an injection tube. The double-cavity catheter is arranged, so that drainage, flushing, and medicine injection are performed in different channels, it is guaranteed that the channels are kept sanitary and clean, and intracranial infection is prevented. The reverse flowing prevention tee joint is used for preventing hydrops from flowing reversely so that secondary infection and danger can be prevented. Scales are arranged on the drainage tube and the drainage bag, the dredging balloon is connected with an air pressure adjusting assembly, and the scales and the air pressure adjusting assembly are arranged, so that it is avoided that the operation force can not be mastered due to insufficient experience, and operation stability is improved. In addition, the drainage device is further provided with a dropping bottle and the dredging balloon, so that the channels are convenient to observe and prevented from being blocked.

The invention discloses a positioning device for intracranial hematoma crashing and aspirating surgery. A distance among scanning cross sections of a CT (computed tomography) machine is constant, a distance among developing stripes, the width of each developing stripe and a length difference between each two adjacent developing stripes are constant, and at the moment, the developing stripes cooperate with the scanning cross sections of the CT machine so as to achieve hematoma size measurement and hematoma position confirmation, and the head of a patient is marked by a pen, so that the position of a hematoma is confirmed effectively. Compared with a mode that puncture operation is performed according to experience, the positioning device for the intracranial hematoma crashing and aspirating surgery has the advantages that positioning accuracy degree of a puncture point in the intracranial hematoma crashing and aspirating surgery by minimally invasive puncture for cerebral hemorrhage is enhanced, so that treatment effect of the hematoma crashing and aspirating surgery is improved.

The invention discloses an intracranial hematoma drainage tube capable of measuring the cranium pressure. The intracranial hematoma drainage tube comprises a circular tube body with the front end closed and the back end open, a plurality of tube cavities with different diameters are formed in the tube body, a mini-type pressure sensor is arranged at the front end of the tube body or the side wall of the part, close to the tube cavities, of the front end of the tube body, and at least one tube cavity is internally provided with a wire connecting the mini-type pressure sensor and an external signal processor in a penetrating mode. The intracranial hematoma drainage tube is simple in structure and good in drainage effect. Due to the fact that the mini-type pressure sensor is additionally arranged at the front end of the drainage tube, the intracranial pressure can be accurately measured in time while the hematoma is removed, intracranial hypertension and other complications in a drainage operation are prevented in advance, the pain suffered by a patient during ventricular puncturing is relieved, and the intracranial hematoma drainage tube is suitable for application and popularization.

The invention discloses an augmented reality positioning system for intracranial hematoma. The system comprises a video camera, a three-dimensional modeling system and a positioning bracket, wherein the three-dimensional modeling system is used for reconstructing a two-dimensional CT image taken for a patient to realize three-dimensional visualization, and observation of intracranial hematoma information of the patient is facilitated for a doctor; the video camera is used for observing a skull image of the patient during the surgery, the video camera is connected with a positioning display system, and the positioning display system is used for displaying the skull image of the patient; a puncture channel is fixed on the positioning bracket, and allows a surgical operator to hold a skull drill to perform puncture along the puncture channel. The system is convenient to operate and facilitates large-scale popularization, and the cost of surgical instruments is low.

The invention provides an intracranial hematoma drainage device. The intracranial hematoma drainage device comprises a drainage tube, a pull rod, a drainage port formed in the wall of the drainage tube and in a strip shape and arranged in the length direction of the drainage tube, a shielding sheet covering the drainage port, a sliding rail arranged on the inner wall of the shielding sheet and arranged in the length direction of the shielding sheet, a supporting rod arranged in the inner cavity of the drainage tube and vertically and fixedly connected with a pull rod, a sliding block fixedly arranged at the end of the supporting rod, outwards penetrating through the draiagen port and slidingly arranged in the sliding rail, and is provided with an elastic device and a collecting device, wherein the drainage tube is inserted into an inner cavity of the drainage tube from an insertion end of the drainage tube, one end of the shielding sheet is fixedly connected with one end of the drainage port, and the other end of the shielding sheet is a bent end. The sectional area of the drainage port is increased, the drainage port is prevented from being blocked, the bendable shielding sheet isarranged on the drainage port, surrounding tissues are prevented from blocking the drainage port, a negative pressure ball on the collecting device can generate negative pressure, and the negative pressure drainage effect of the negative pressure ball is improved.

An embodiment of the invention provides a positioning assisting method and device for intracranial hematoma operation. The method comprises the following steps: in response to a picture opening instruction, reading and displaying preoperative CT image data of the head of a patient; in response to a camera call instruction, superimposing the preoperative CT image data on a preview image, displayedby a preview display area, of the head of the patient in the preview display area shot by a camera; and in response to a picture editing instruction, editing the preoperative CT image data so that thetransparency of the edited preoperative CT image data is adjusted to a target value, and the head of the patient in the edited preoperative CT image data is matched with the head of the patient in the preview image. According to the positioning assisting method and device for intracranial hematoma operation provided by the embodiment of the invention, enhanced display is performed by superimposing and aligning the preoperative CT image data on the preview image of the head of the patient, preoperative body surface marking can be assisted, and the positioning assisting method and device are simpler to operate, lower in cost and wider in appliance range.

The invention discloses a hematoma remover, which is characterized by comprising an aspirator and a double-container balanced lavaging device, wherein the aspirator comprises a high pressure cavity and a low pressure cavity; the double-container balanced lavaging device comprises a liquid inlet pipeline, a liquid outlet pipeline, a No.1 pump, a No.2 pump, a No.1 container and a No.2 container; the No.1 container is connected to the high pressure cavity of the aspirator through the liquid inlet pipeline and the No.1 pump; the low pressure cavity of the aspirator is connected to the No.2 container through the liquid outlet pipeline and the No.2 pump; the No.1 container is provided with a No.1 metering sensor; the No.2 container is provided with a No.2 metering sensor; the No.1 pump and the No.2 pump are respectively provided with a central controller capable of controlling the running state of the pumps; and the No.1 metering sensor and the No.2 metering sensor are connected to the central controller. The work efficiency of the two pumps is dynamically regulated by the central controller, the requirement of fulfilling surgical tasks such as intracranial hematoma is met, and defects of high operating and maintenance cost and the like of the conventional hematoma remover can be overcome.

The invention provides a simple intracranial hematoma puncture orientation instrument. The bottom end of a support is fixedly connected to the top of a bottom plate, and the top of a first sliding block is sleeved with the surface of the support; the surface of a transverse rod penetrates through the bottom of the first sliding block, and the back surface of the first sliding block is slidably connected to the surface of the transverse rod. The simple intracranial hematoma puncture orientation instrument is fixed with the sagittal line as a reference plane and is not interfered with the thickness of scalp, and intracranial and extracranial projections are consistent; meanwhile, the parallel line principle is used and the principle that corresponding angles are equal is used, so that the direction of needle feeding is accurately fixed; a protractor is provided with a pointer, so that it is guaranteed that puncture needle feeding is free of deviation at any moment in an operation; multi-point puncture fixation is not needed, repeated CT scanning is not needed, and unnecessary injury of a patient is reduced; a measuring and calculating method is simple and rapid, and measuring and calculating errors are greatly reduced, so that the operation time is saved; complicated equipment is not needed, the treatment cost of the patient is reduced, mounting and dismounting are convenient, and the instrument is convenient to transport.

The invention discloses an intracranial hematoma positioning membrane and a positioning device. The positioning device comprises a base layer, multiple labeled holes are formed in the base layer regularly, CT labels are arranged on the labeled holes, and the density of the labeled holes in the base layer is larger than 0.7 per cm<2>. According to the intracranial hematoma positioning membrane and the positioning device, the base layer is attached to the surface skin, corresponding to hematoma, of a patient, an accurate relative position of the hematoma and the base layer is obtained through CT, and accordingly a suitable target labeled hole is selected in the base layer through the relative position and marked on the scalp of the patient, so that the obtained target label hole is the puncture hole. The positioning device is simple in structure and easy to operate and can be positioned precisely.

The invention discloses an intracranial hematoma smash puncture needle limit device which comprises an inner core and an outer sleeve. The outer sleeve wraps the periphery of the inner core, the upper portion of the inner core is of a columnar structure, an opening is formed in the side wall of the columnar structure, the side edge of the outer sleeve is provided with a positioning button and a positioning groove, a platform is arranged on the lower portion of the inner core, the inner diameter of the inner core close to the platform is slightly larger than that of a drill bit, reserved parts are spaces for discharging bone dregs and chips, a plurality of equally spaced grooves are formed in the outer surface of the inner core, and a plurality of projections corresponding to the grooves are arranged on the inner surface of the outer sleeve. According to the intracranial hematoma smash puncture needle limit device, drilling deviation can be decreased, peripheral tissues such as scalp and muscle can be effectively prevented from being dragged, the bone dregs are reserved in the limit device and cannot be scattered in a surgical area, visible interference in the surgical area is reduced, the outer sleeve is fixed onto the inner core through fasteners, the fasteners of the outer sleeve needs to being opened when the inner core is taken down, the inner core can be taken out from side surface without other tools, and the device is convenient and rapid to operate.

The invention provides an intracranial hematoma breaking aspirator and an intracranial hematoma breaking vacuum aspiration device and belongs to the field of medical equipment. The intracranial hematoma breaking aspirator comprises a sleeve, a vacuum aspiration device and a rotating device, wherein the rotating device is arranged in the sleeve; an output end of the vacuum aspiration device is connected with the sleeve; the vacuum aspiration device and the rotating device are respectively located at the two ends of the sleeve. The intracranial hematoma breaking vacuum aspiration device comprises an externally connected suction device and the intracranial hematoma breaking aspirator, wherein the externally connected suction device is connected with the vacuum aspiration device. According to the intracranial hematoma breaking aspirator provided by the invention, the rotating device is arranged in the sleeve; after the sleeve is close to a hematoma, the rotating device is inserted into the hematoma and is rotated; the shearing force of the rotating device is utilized to break the hematoma; after the hematoma is broken, the vacuum aspiration device can be used for conveniently sucking the hematoma fragments.

The invention discloses an intelligent intracranial hematoma clearing and draining system. The system comprises an information input module, an information detecting module, an intelligent module, anda hematoma clearing draining module, wherein the information input module is used for collecting preoperative data and transmitting the preoperative data to the intelligent module, the information detecting module is used for obtaining intracranial data which is monitored in real time and transmitting the intracranial data which is monitored in real time to the intelligent module; the intelligentmodule is used for data from the information input module and the information detecting module to analyze and judge the received data and converting the judgement into an instruction signal which istransmitted to the hematoma clearing draining module; the hematoma clearing module is used for receiving the instruction of the intellient module to clear and drain intracranial hematoma and feeding back drained data to the intelligent module. The system has the advantages that all treatment operations have corresponding bases, all signal are detected in real time, real-time monitoring of key information of the patient in the intracranial hematoma treatment process is ensured, and therefore all treatment operations on a patient are controllable and accurate.

The invention relates to the technical field of medical apparatuses and instruments, and specifically relates to a directional microinvasive remover device for intracranial hematoma. The device comprises a remover body, wherein the remover body comprises an absorbing barrel; a housing of an absorbing barrel body is of a double-layer structure; a cavity is formed between two layers of the housing of the double-layer barrel body; an absorbing barrel seat is arranged on the top end of the absorbing barrel; a left cavity, a medium cavity and a right cavity are formed in the absorbing barrel seat from left to right in a sequence; rechargeable battery packs are arranged in the left cavity and the right cavity; a micro cylinder is arranged in the medium cavity; a micro motor is arranged on the upper surface of the absorbing barrel seat and drives the micro cylinder to act; a shaft of the micro cylinder extends into the absorbing barrel body; a piston in match with the absorbing barrel body is arranged at the shaft end of the cylinder shaft. The device has the advantages that the structure is simple; the operation is convenient; the puncturing removing can be monitored in the whole process; the positioning is accurate; hematoma liquid can be automatically absorbed; the working efficiency is high; the speed is fast; the pain of a patient can be relieved.

The invention provides a measuring method of the size of intracranial hematoma. As for characteristics of images of intracranial hematoma, non-linear anisotropic diffusion filtering is adopted for pre-processing of the images, noise and image artifacts are effectively removed, and actual requirements for medical image processing are met; two-step image segmentation processing is adopted for the images, non-brain tissue of the skull and outside the skull is removed ingeniously, and image registering and other work are not needed; the concept of entropy is introduced in image segmentation, two-dimensional thresholding of entropy is achieved, the images are segmented by using the gray level of pixels and the neighborhood gray level of pixels as parameters, information distribution of the gray level of the pixels is reflected, and relative information of neighborhood space of the pixels of the images is reflected. Therefore, noise is effectively restrained, and interference and undesired fine structures are removed; various operators of the genetic algorithm are improved, a self-adaption large-variation operator is adopted for solving the problem that the genetic algorithm has precocity, and namely the algorithm is constricted to a non-overall optimal point untimely, and the best threshold value is searched for through the improved layering genetic algorithm finally.

The invention relates to a multifunctional intracranial hematoma removing device, and belongs to the technical field of intracranial hematoma removing medical apparatuses. The multifunctional intracranial hematoma removing device is formed by a device body, a guiding rod and a visible device. A water injection pipe, a medicine injection pipe and two drainage liquid sucking pipes are manufactured in the cylindrical wall of the device body, and the four pipes are evenly distributed on the circumference of the device body at 90 degrees; slant injection holes and a center through hole are manufactured in the bottom of the device body, and two lighting devices are installed. After the guiding rod is drawn out of the device body, the visible device connected with a computer terminal can be installed in a cylinder. According to the multifunctional intracranial hematoma removing device, the multiple functions of sludged blood smashing, blood sucking, flushing draining, medicine injection and lighting are integrated, a hematoma removing operation can be completed with one device, the intracranial pressure can be effectively reduced, and the operation time is short. The problems that an existing minimally-invasive removing device is single in function and long in operation time, and does not have the lighting function, brain blood vessel lesions cannot be found in the early stage, and disease future trouble of a patient is left are solved.

The invention belongs to the technical field of medical instruments, and particularly discloses an accurate puncture positioning and supporting system for minimally invasive puncture for intracranialhematoma. The system comprises two accurate supporters, each accurate supporter comprises a supporting device, the supporting devices comprise bottom plates, supporting plates, first siding plates andsecond siding plates, the first siding plates and the second siding plates are perpendicularly and oppositely arranged on the bottom plates, two sliding holes are formed in the first siding plates and the second siding plates at intervals, top plates are arranged at the top ends of the first siding plates and the second siding plates, studs corresponding to the sliding holes are arranged on the top plates, two nuts are arranged on the studs in a sleeving manner, the supporting plates comprise head supporting plates and pillow supporting plates, two symmetric connecting plates are arranged attwo opposite edges of the head supporting plates and the pillow supporting plates, a sliding hole is formed in each connecting plate, each stud penetrates the sliding hole in the corresponding connecting plate, and each connecting plate penetrates the corresponding sliding hole in the corresponding side plate and is positioned between the two nuts. According to the supporting system, a head of a patient can be flexibly, standardly and horizontally fixed, so that the minimally invasive puncture accuracy of the intracranial hematoma is improved.

The invention relates to an intracranial hematoma orientation skull-perforation instrument, belonging to medical appliance, which mainly comprises a fixed bracket with symmetrically fixed nails and screws. The invention is characterized in that the fixed bracket is connected with a positioning bracket which is provided with a positioning rod and a skull-perforation hole. The centre axles of the positioning rod and the skull-perforation hole are located at the same straight line. The skull-perforation hole together with a skull drill and a drainage tube are matched, to be used combined with CT sheet, thereby confirming the position and depth of the intracranial hematoma accurately as well as the puncture point, puncture direction and puncture depth of the perforation skull, with the effects of firm fixation, accurate position, simple operation, simple structure and convenient use.

The invention discloses a body surface positioning and puncture guide instrument used in a neurosurgery department. The instrument comprises bases, wherein the bases are connected with an operating table through screws; two bases are provided; the two bases are arranged parallel to each other; the bases are connected with joints A in a sliding manner; the adjusting joints A are connected with upper and lower scale range poles through rotating shafts; middle parts of upper and lower scale range poles are connected with adjusting joints B in a sliding manner; rear end surfaces of the adjusting joints B are fixed at one ends of reference rods A; adjusting joints C are arranged at the other ends of the reference rods A; the adjusting joints C are connected with one ends of adjusting line rodsA through rotating shafts; the other ends of the adjusting line rods A are connected with limiting transverse rods through screws; the limiting transverse rods are sleeved by guide sleeves; and upperends of the upper and lower scale range poles are connected with adjusting joints D in a sliding manner. The instrument is applied to body surface positioning of intracranial hematoma and swelling pain, and is capable of correctly guiding directions and depths of puncture needles, ensuring that catheters can puncture to hematomae or swelling pain, and achieving precise body surface positioning onintracranial hematoma.