36results about How to "Facilitate treatment work" patented technology

The invention discloses a novel uterine curettage auxiliary device for gynecology and obstetrics. The device comprises a bottom plate. A mounting pipe is welded on the top of the bottom plate, The side wall screw of the mounting pipe is fixed with a driving motor, and the output shaft of the driving motor is fixed with a first pulley, and the first pulley is connected with a second pulley locatedbetween the fixing blocks through a synchronous belt. In accordance with that present invention, first pulley, second pulley, a fixing post, a first threaded rod, an L-shaped mounting rod, the placingplate and the splint are arranged so as to not only limit the displacement of the legs of the patient and avoid disturbing the treatment, but also automatically open the legs of the patient and adjust the opening degree of the legs according to the needs, thereby bringing convenience to the medical staff and the patient, and the patient does not need to open the legs by himself.

The invention discloses an oral cavity supporting device of an adjustable tongue retaining plate and relate to a dental auxiliary medical apparatus. The oral cavity supporting device has the functionsof distracting the oral cavity and preventing disturbance of the tongue. The oral cavity supporting device comprises an oral cavity supporting device body, the adjustable tongue retaining plate, a fixed length tongue retaining plate and a bidirectional lead screw, wherein when the oral cavity supporting device body is placed on one side of the oral cavity, the adjustable tongue retaining plate isconnected to the oral cavity supporting device body and a height adjusting rotary knob is connected to the middle of the bidirectional lead screw to adjust the height of the oral cavity supporting device body; a positioning rod is used for fixing corresponding positions of upper and lower parts of the oral cavity supporting device when the longitudinal height is adjusted. The oral cavity supporting device is I-shaped, the engaging part is of a concave arc shape, and the stress of the I-shaped structure is more centralized during engagement; the adjustable tongue retaining plate is of an embedded telescopic structure and a tongue retaining plate body is inserted into a tongue retaining sleeve to form the tongue retaining plate. The depth, inserted into the tongue retaining plate sleeve, ofthe tongue retaining plate is adjusted through three length adjusting holes. Balls on a V-shaped positioning elastic sheet are sunken into the three length adjusting holes to adjust and fix the stretching length of the tongue retaining plate body.

The invention discloses a microwave ablation needle positioning and fixing device applied to CT guidance. The device comprises a base, a position adjusting seat, an angle adjusting seat, a reference surface positioning piece and a clamping and fixing structure. A chute is formed in the base along the length direction; and a sliding block capable of sliding along the sliding groove is arranged at the lower end of the position adjusting seat. The middle part of the angle adjusting seat is rotatably arranged on the position adjusting seat, the angle adjusting seat is coaxial with the position adjusting seat, a puncture positioning hole for inserting a microwave ablation needle is formed in one end of the angle adjusting seat along the radial direction of the angle adjusting seat, and angle adjusting metal reference lines for confirming a puncture angle under the guidance of CT are embedded in two sides of the puncture positioning hole. The microwave ablation needle can be quickly adjustedto a correct puncture angle, puncture depth and puncture plane under the guidance of CT, and can be effectively fixed after being punctured to a cancer lesion in a patient body, so that the labor intensity of medical personnel is effectively reduced.

The invention discloses a movable type negative pressure operating room comprising a negative pressure operating room body, a purification air conditioning unit, an air exhausting unit, a control system and a power supply system. An operating area used for conducting diagnosis and treatment on patients is arranged in the negative pressure operating room body. A fresh air inlet of the purificationair conditioning unit communicates with the atmosphere in the outside world. A high-efficiency air supply port of the purification air conditioning unit communicates with the operating area of the negative pressure operating room body. The high-efficiency air supply port of the purification air conditioning unit is arranged on the upper portion of one side of the operating area of the negative pressure operating room body. When emergency situations of epidemic situations such as SARS and novel coronavirus pneumonia happen, the movable type negative pressure operating room can be rapidly assembled, operations can be performed on the spot, great convenience is brought to the diagnosis and treatment work of the patients, and meanwhile risks of various types of infection are greatly reduced.

The invention provides a treatment table structure for periodontal clinical treatment. The treatment table structure comprises a second-stage support and a third-stage support. The left end face of abase is provided with a storage slot, a recliner is mounted on the top of the base, a backrest is mounted at the back end of the top of the base, and a power socket is embedded in the front end of thebase. An illumination switch and a water-suction switch are both mounted on the left end face of the base, and a storage drawer is in sliding connection in the storage slot of the base. A small-sizewater suction pump is mounted at the bottom of the storage slot and is communicated with a saliva storage bottle through a pipe, and the saliva storage bottle is arranged in the storage drawer. The bottom of a flexible support is mounted on the left end face of the base, and the outer end face of the flexible support is sleeved with nine fixing blocks, and a supporting post is rotationally connected with the top end surface of the flexible support. Therefore, by the treatment table structure, saliva in patient's oral cavity can be sucked away to keep the oral cavity clean, which brings convenience for medical staff to do treatment on periodontal affected parts.

The invention discloses a medical oxygen supply device for the respiratory medicine department. The medical oxygen supply device for the respiratory medicine department comprises a vertical plate, splints, threaded holes, threaded rods, a spring, a pin shaft, a thick tube, a sleeve ring, a thin tube, an external thread, an L-shaped connecting plate, a wedged pin, a pulling rope, an elbow tube, a breathing mask, a circular through hole, an oxygen supply tube, a clamping sleeve, a mounting block, a supporting rod and insertion grooves; through the arrangement of the splints and the threaded rodsat the top of the vertical plate, the device can be fixed quickly and is unlikely to slide, and the subsequent oxygen supply and treatment work on a patient is facilitated; the angles of the thick tube and the vertical plate can be adjusted through the pin shaft, and the supporting rod is used for supporting the thick tube; meanwhile, through the arrangement of the thick tube, the thin tube and the sleeve ring, medical staff can finely adjust the length of the thin tube, the distance between the breathing mask at the bottom and the patient is adjusted to meet the demands of the patient, the fitting degree is greatly improved, and the device is easy to fix, convenient to wear by the patient and beneficial to the oxygen supply work on the patient.

The invention discloses a liquid leakage prevention medicine bottle which comprises a bottle body. A bottle cavity is formed in the bottle body, a liquid channel is formed in the top of the bottle body, a directional channel is formed in the top of the bottle body and positioned on one side of the liquid channel, an inner cavity of the directional channel is provided with a liquid receiving nozzle, and a push-up cavity and a push-down cavity are formed in the bottle body and positioned at the top and the bottom of the left side of the directional channel. By cooperation of the directional channel, the push-down cavity, a lever, a lower pressing block, a cross rod, an upper pressing block, the push-up cavity, a push-down rod, a push-down lower support fork, a push-down lower plate, a push-up upper support fork, a push-up lower plate, a push-up lower support fork, a push-up upper support for, a push-up upper plate and a push-up rod, the liquid receiving nozzle can be pushed to move up and down, the medicine bottle is toppled over, liquid medicines can be poured, remaining liquid medicines cannot contact with air to cause pollution, and great convenience is brought for treatment.

The invention discloses a pair of convenient-to-use tweezers for a rectum branch. The pair of convenient-to-use tweezers comprises a first clamping arm and a second clamping arm, wherein clamping parts are fixedly connected with right ends of the first clamping arm and the second clamping arm; a fixed block is fixedly connected with the left side of the top of the first clamping arm; the left sideof the bottom of the second clamping arm is fixedly connected with a bracket; the bracket is movably connected with the fixed block through a rotary shaft; grooves are formed in the top of the firstclamping arm and the bottom of the second clamping arm. According to the pair of convenient-to-use tweezers disclosed by the invention, the first clamping arm, the second clamping arm, the clamping part, the fixed block, the bracket, the groove, a spring, a connection rod, a short rod, a sleeve, a thread hole and a thread rod are matched to use, and the length of the tweezers can be adjusted, so that medical staff with different palm widths can grasp the tweezers better and a clamping angle of the tweezers can be adjusted, and furthermore, the proceeding of treatment work is ensured better andextremely great convenience is brought for usual treatment work.

The invention discloses a control device of a dental instrument tray and dental treatment equipment. The control device comprises a bottom plate, a supporting platform, a fixing box and a mounting frame, wherein the top of the bottom plate is fixedly connected with a dental treatment bed, the portions, located on the back face of the dental treatment bed, of the two sides of the top of the bottomplate are fixedly connected with a supporting frame separately, the top of the supporting frame is fixedly connected with the bottom of the supporting platform, the bottom of the fixing box is fixedlyconnected with the top of the supporting platform, one side of the mounting frame is fixedly connected with one side of the fixing box, one side of the top of the inner wall of the mounting frame isfixedly connected with a motor, one end of an output shaft of the motor is fixedly connected with a vertical rod through a coupler, and the bottom end of the vertical rod is rotationally connected with the bottom of the inner wall of the mounting frame through a bearing. The invention relates to the technical field of dental treatment. The control device of the dental instrument tray and the dental treatment equipment can achieve the effect that the height and angle of the instrument tray are adjusted according to actual needs, medical workers conveniently control the dental instrument tray, and convenience is brought to the treatment work for the medical workers.

The invention relates to the technical field of medical instruments, in particular to a medicine containing box. The medicine containing box comprises a box body. The box body is of a hollow structure. A medicine containing opening for containing a medicine bottle is formed in the upper side face of the box body, a magnetic device is installed at the inner bottom of the medicine containing opening, a clamping device is installed on the upper end face of the magnetic device, and the clamping device is arranged around the medicine containing opening. The magnetic device comprises two magnetizers of concave structures, a non-conductive magnet, a strip-shaped magnet and a rotary shaft. The clamping device comprises a first spring, a second spring, a non-magnetic iron block and a clamping part. The magnetic device and the clamping device can clamp the medicine bottle in the box body under the magnetic attraction effect. The medicine containing box is complete in structure, environmentally friendly and safe, the medicine bottle in the medicine containing box can be clamped, and the functionality of the medicine containing box can be improved.

The invention relates to the technical field of medical equipment, in particular to a high-voltage steep pulse therapeutic apparatus which comprises a therapeutic apparatus component, a first fitting component and a second fitting component, one side of the front end of the therapeutic apparatus component is electrically communicated with the first fitting component, and the other side of the front end of the therapeutic apparatus component is electrically communicated with the second fitting component. The therapeutic instrument component comprises a stable limiting structure and a control screen, the control screen is arranged at the center of the inner end of the therapeutic instrument component, the stable limiting structure is fixedly connected to the upper end of the control screen, the therapeutic instrument component further comprises a side support and a groove-shaped top plate, the side support is fixedly connected to the side end of the control screen, and the groove-shaped top plate is fixedly connected to the top of the control screen. The stable limiting structure comprises a connecting frame block, a cooperative guide frame, a transverse frame block, a stand column frame, a supporting frame, a rotating shaft, a rotating frame, a supporting flat frame, a guide rod, an air extractor and a suction cup frame. Through the arrangement of the therapeutic instrument component, the first fitting component and the second fitting component, the pulse therapeutic operation is realized, the pulse width of the pulse generator is modulated through modulating wave carrier pulse width modulation, high trigger precision and interference resistance of the pulse generator are realized, and high-voltage pulse therapy is facilitated.

The invention discloses a gynecological pelvic inflammation therapeutic apparatus for combined treatment of traditional Chinese medicine and western medicine, and relates to the field of gynecological treatment. The gynecological pelvic inflammation therapeutic apparatus for combined treatment of traditional Chinese medicine and western medicine comprises a therapeutic apparatus base and a positioning mounting seat. When the gynecological pelvic inflammation therapeutic apparatus for combined treatment of the traditional Chinese medicine and the western medicine is used, firstly, a patient lies on a treatment bed body, then the transverse position of a position adjusting sliding table is adjusted through an arranged position adjusting side plate, the position adjusting sliding table is made to directly face the abdomen of the patient, and at the moment, a lifting fumigation positioning frame is lifted, so that the patient feels comfortable; the lifting fumigation positioning frame covers the abdomen of a patient, fumigation gas is introduced into the fumigation communication pipeline to achieve traditional Chinese medicine treatment on the abdomen of the patient, in the process, the magnetic therapy piece fixing table is lifted, the infrared thermal magnetic therapy piece is attached to the abdomen of the patient, and western medicine treatment is conducted through magnetic therapy and heating.

The invention discloses a special all-dimensional illuminating type arm lamp for obstetrics and gynecology doctors. A connection bottom plate, a hydraulic rod and a spring are included; a connection rod is fixed to the middle end of the connection bottom plate, and rolling wheels are arranged at the left end and the right end of the bottom of the connection bottom plate; a friction outer layer isinset and installed on the outer side of each rolling wheel; the hydraulic rod is arranged on the connection rod; the joint of the connection rod and the hydraulic rod is provided with a fixed sleeve;the outer end of the fixed sleeve is provided with a fixed screw; and a movable shaft is installed on the top of the hydraulic rod. According to the special all-dimensional illuminating type arm lampfor the obstetrics and gynecology doctors, due to the fact that the device is provided with a warming lamp and a lighting lamp, and the warming lamp and the lighting lamp assist a medical worker to work under different environments; when the wound of a patient does not bleed, the medical worker can use the lighting lamp to work; and when the wound of the patient bleeds, the color of blood and illumination of the lighting lamp are directly mapped into the sight line of the medical worker, work of the medical worker is affected, and the medical worker can use the warming lamp to continuous to treat the patient.

The invention provides a pet box, which comprises a square box body, a tray and a support plate, wherein a box cover is arranged on the top surface of the box body, the bottom surface of the box body is a hollow-out net surface, the tray is detachably connected on the bottom portion of the box body, a rectangular hollow-out opening is arranged in the middle of the side surface of the box body, the support plate is connected on the edge of the hollow-out opening close to the bottom portion of the box body through a rotating shaft, the box body is further provided with a support rod which is used to support the support plate and enable the support plate to be parallel to the bottom portion of the box body, the support rod is rotatably connected on the box body through a rotating part, and an exhaust fan which is used to discharge the air in the box body is further arranged on the side surface of the box body. The pet box has the beneficial effects that the pet box can directly transfuse for pets in the pet box, and is convenient for treatment operation by being provided with the support plate which is used to support pet paws.

The invention discloses a medical device, and specially relates to a Gynaecologic drug applicator; the Gynaecologic drug applicator main body comprises a drug applicator cylindrical form expander anda tongue silica locator buckle in combination; the tongue silica locator buckle is provided with a tongue silica locator; a drug application tube and a probe tube inner fixed plate are arranged in thedrug applicator main body; the drug application tube and a probe tube are respectively arranged in the tongue silica locator buckle, the drug application tube, the probe tube inner fixed plate and the drug applicator cylindrical form expander; one end of the probe tube is connected with a probe tube head; one end of the drug application tube is provided with a drug application tube thread interface that connects with a drug application tube head. The advantages are that the Gynaecologic drug applicator can replace the drug application tube head according to different forms of drugs, thus allowing doctors to use liquid form, mist form, and solid powder drugs to treat patients according to patient conditions, and bringing great conveniences for treatment works of the doctors.

The invention discloses a pediatric pneumonia aerosol inhalation treatment device in the technical field of medical instruments. The pediatric pneumonia aerosol inhalation treatment device comprises a mounting plate and a bottle body, wherein the bottle body is mounted on the front end surface of the mounting plate; an air suction box body is arranged on the upper end surface of the bottle body; the air suction box body is movably connected with the bottle body; a fan is arranged in the inner cavity of the air suction box body; a control switch is arranged on the front end surface of the air suction box body and is electrically connected with the fan; a movably-connected connecting mechanism is arranged on the top end surace of the air suction box body; and a mounting mechanism is arranged on the top end surface of the connecting mechanism and comprises a mask; the bottom end surface of the mask is fixedly connected with a mask installation piece of which the inner cavity communicates; the mask installation piece is movably connected with the connecting mechanism; the end surfaces of the two sides of the mask installation piece are both fixedly connected with installation blocks; and a movably-connected limiting rope is respectively arranged between two groups of installation blocks. The problems that an aerosol inhalation treatment device is likely to cause cross infection and can not be conveniently used by children are solved.

The invention discloses a composition for assisting in tumor treatment and a preparation method of the composition, and relates to technical field of tumor treatment. The composition is prepared from,by weight, 4-6 parts of vitamin E, 5-8 parts of vitamin A, 6-8 parts of diazepam, 8-10 parts of a selenium-containing compound, 6-8 parts of cannabinol, 15-25 parts of ethanol water, 10-12 parts of coral dealbatus, 14-16 parts of cordyceps militaris, 10-12 parts of herba houttuyniae, 12-14 parts of radix astragali, 10-15 parts of radix salviae miltiorrhizae, 8-10 parts of radix panacis quinquefolii, 12-14 parts of licorice root fine powder, 25-40 parts of lentinan, 30-40 parts of mannan oligosaccharide and 20-35 parts of deionized water. According to the composition for assisting in tumor treatment and the preparation method of the composition, by means of the synergistic effect of the mannan oligosaccharide and the lentinan, the intestinal environment of patients can be significantly improved, and internal microflora is adjusted to keep balance. By means of cooperative use of the cannabinol and diazepam, the pain of patients can be effectively alleviated, depression and anxiety of the patients are lowered so that the patients can maintain a certain good state of mind, and conducive follow-up treatment is facilitated.

The invention discloses a melittin lipid nanoparticle. The melittin lipid nanoparticle is characterized by being prepared from 1,2-dimyristoyl-sn-glycerol-3-phosphorylcholine, cholesterol oleic acid, an organic solvent, melittin and an inorganic solvent. According to the melittin lipid nanoparticle, the melittin is effectively carried by adopting the solid lipid nanoparticle, so that the treatment effect of the melittin can be effectively enhanced, the specificity is improved, the drug loading capacity is increased, and the membrane rupture property and hemolytic property of the melittin are lowered; and in addition, targeted drug delivery can be achieved, the bioavailability is improved, and adverse reactions are reduced.

The invention relates to an ultrasonic therapeutic compound conveying catheter which comprises a catheter body, the left end of the catheter body is in threaded connection with an end, a through hole penetrates through the middle of the interior of the end, evenly-distributed liquid outlet holes penetrate through the middle of the periphery of the end, and ultrasonic generators are arranged between the liquid outlet holes. The ultrasonic generators are fixedly connected to the interior of the wall body of the end, the end, away from the catheter body, of the end is fixedly connected with a shell, the end, away from the end, of the catheter body is fixedly connected with a connector, and the middles of the upper side and the lower side of the connector are fixedly connected with mounting blocks; the medical catheter has the advantages that diffusion of medicine in the body of a patient can be accelerated, treatment work on the patient is facilitated, the patient can better absorb the medicine property, people can know the condition in the body of the patient during treatment, and the patient can conveniently take the treatment effect. And therefore, people can conveniently carry out targeted treatment on patients.

The invention relates to a leg drilling device for orthopedic treatment use. The leg drilling device for the orthopedic treatment use comprises a base, a first housing, a second housing, and a drilling motor; the first housing is fixedly connected to the base, and is connected with a second housing through an adjusting mechanism; a threaded rod is rotatably connected into the second housing, penetrates through the second housing, and fixedly connected with an output shaft of a third motor; the third motor is fixedly connected to the second housing; and nut block is in threaded connection withthe threaded rod. When a lifting block drives a drill bit to move downwards, a second gear rotates on a second rack so that the rotating speed of the second gear can be detected by a speed sensor; andthen, the rotating speed information is displayed on a display screen of a controller in a data mode, so that the descending speed of the lifting block and the descending speed of a drilling motor can be observed. Thus, the descending speed of the drill bit in the leg can be obtained at any time, thereby facilitating treatment work.

The invention belongs to the technical field of medical equipment, and relates to a steam fumigation therapeutic apparatus for the urology department. The therapeutic apparatus comprises two supporting columns, the upper end faces of the two supporting columns are fixedly connected with a bed frame, the back of the bed frame is provided with a mounting bin, and the upper end face of the mounting bin is fixedly connected with a top fence; a liquid medicine decocting device and a disinfecting and cleaning device are both stored in the mounting bin and are prevented from being contaminated by external dust and bacteria, so that the protection effect is effectively achieved; the steam flow of a steam spray head can be flexibly adjusted and controlled by a steam flow control valve, the steam spray head is disinfected through the disinfecting and cleaning device, bacteria spreading and cross infection caused by untimely cleaning of the steam spray head are avoided; and the problems that an existing steam fumigation therapeutic apparatus for the urology department increases the working difficulty of medical staff, is inconvenient to use, cannot be well stored, is inconvenient to adjust and control the steam flow, cannot be disinfected and cleaned in time, and is inconvenient to clean are solved. And unnecessary bacterial propagation and cross infection can be caused.

The invention discloses a flexible treatment device for treating urogenital stone, which comprises an adjusting assembly, an impact assembly and a bed board, an electric push rod is fixedly mounted at the top of the adjusting assembly, the impact assembly is movably mounted at the output end of the electric push rod, and lighting assemblies are equidistantly mounted on the surface of the impact assembly. According to the invention, the electric push rod is fixedly installed at the top of an adjusting assembly, a sliding block can slide in a sliding groove, so that an impact assembly is driven to conduct position adjustment, medical staff can conveniently conduct treatment work on a patient, then a fixing groove is movably connected with the output end of the electric push rod, fixing bolts are tightened for fixing, then the height of the probe is adjusted through the electric push rod, then a therapeutic instrument host controls a probe to treat patients, a worker can conveniently carry out adjustment according to different patients, the flexibility is high, an illuminating lamp is used to assist medical staff in operation, and the accuracy of an operation is improved.

The invention relates to a psoriasis multispectral photographing device which comprises a bottom plate, a working table and a plurality of vertical plates, every two adjacent vertical plates are rotationally connected, each vertical plate is provided with a mirror surface, a photographing module is arranged on the top surface of the bottom plate, a computer is arranged at the top of the working table, the photographing module comprises a rear vertical frame and a front vertical frame, and the rear vertical frame and the front vertical frame are arranged on the bottom plate. T-shaped sliding grooves are vertically formed in the sides, close to the mirror surface, of the rear vertical frame and the front vertical frame, T-shaped sliding blocks matched with the T-shaped sliding grooves are movably arranged in the T-shaped sliding grooves, and long open grooves are vertically formed in the side walls of the same sides of the rear vertical frame and the front vertical frame. According to the multi-spectral photographing device for psoriasis, through cooperative operation between a plurality of mirror surfaces and the photographing module, the whole body of a psoriasis patient can be photographed at different angles, and the pictures photographed at different angles can be synthesized into one picture through a computer; furthermore, medical workers can conveniently treat the psoriasis patient.

The invention discloses a leak-proof liquid medicine bottle, which comprises a bottle body, a bottle cavity is opened inside the bottle body, a liquid tank is opened on the top of the bottle body, and the top of the bottle body is located on a side of the liquid tank. There is a facing groove on the side, and the inner cavity of the facing groove is provided with a liquid nozzle, and the inside of the bottle body and the top and bottom on the left side of the facing groove are respectively provided with an upward push chamber and a downward push chamber. The present invention is through trough, push-down chamber, lever, push-down block, cross bar, push-up block, push-up cavity, push-down rod, push-down lower fork, push-down lower plate, push-down upper fork, push-down The combination of the upper plate, the upper push lower plate, the upper push lower fork, the upper push fork, the upper push plate and the upper push rod can push the liquid receiving nozzle to move up and down, and then dump the medicine bottle, which is completed at this time The work of dumping the medicinal liquid will not cause the residual medicinal liquid to contact with the air to cause pollution, which brings great convenience to the treatment work.

The invention discloses a bone moxibustion herbal formula which comprises the following components in parts by weight: 6-8 parts of ilex ficoidea, 1-2 parts of aechynanathus austroyunna-nensis, 1-1.5 parts of boston ivy, 1-2 parts of treebine stem, 1-2.5 parts of stem of climbing etada, 1-2.5 parts of Codariocalyx motorius, 1-1.5 parts of Dayaoye, 1-2 parts of radix zanthoxyli, 1-2.5 parts of codonopsis pilosula and cortex phellodendri, 1-3 parts of fructus rosae laevigatae, 6-7 parts of Ziqiangye and 0.7-1.5 parts of other traumatic injury medicines. Leaves of ilex ficoidea, leaves of aechynanathus austroyunna-nensisand stems and leaves of boston ivyare taken as the components. The preparation process is simple, the preparation process is environment-friendly and pollution-free, the herbal formula has good functions of diminishing inflammation and swelling, relieving pain and dissipating blood stasis, liquor is used for blending, time and labor are saved, materials are cheap, the medicine can better enter the body of a patient under the volatilization of alcohol, the treatment effect is better guaranteed, and great convenience is brought for the treatment work. Longan leaves are added, so that the herbal formula has a remarkable treatment effect on diseases such as cervical vertebra hyperosteogeny, lumbar vertebra hyperosteogeny, lumbar disc herniation, ankylosing spondylitis, rheumatoid arthritis, sciatic nerve injury, traumatic injury and the like.