68 results about "Holmium Lasers" patented technology

The invention relates to a holmium laser, and the holmium laser comprises a pump module, a gain medium module, and a laser cavity module. The pump module includes a semiconductor laser, a multimode fiber, and a collimating focusing module. The laser cavity module includes a front cavity mirror and a rear cavity mirror, and the rear cavity mirror serves as a coupling output mirror. The gain mediummodule is located between the front cavity mirror and the rear cavity mirror. The semiconductor pumping light emitted by the semiconductor laser is outputted to the collimating focusing module after passing through the multimode fiber, and the light outputted by the collimating focusing module is emitted to the gain medium module through the front cavity mirror to generate holmium laser, and thenis outputted through the rear cavity mirror. The holmium laser proposed by the invention is higher in overall conversion efficiency of energy, is more compact in structure, is lower in construction cost, and is more convenient in implementation.

The invention discloses a holmium laser ultrasonic lithotripsy and stone removal device. The device comprises a laser instrument, an ultrasonic stone removing instrument and a negative pressure control instrument, the laser instrument comprises a holmium laser host and an optical fiber, and the ultrasonic stone removing instrument comprises an ultrasonic host, a stone removing instrument handle, an energy converter installed in the stone removing instrument handle, an ultrasonic variable-amplitude probe rod fixed to the energy converter and a suction pipeline communicated with the negative pressure control instrument; a guide rod is further included; the guide rod is provided with a first channel in the axis direction, the ultrasonic variable-amplitude probe rod is mounted in the first channel; the stone removing instrument handle is fixed at one end of the guide rod; a stone removing channel is formed between the ultrasonic variable-amplitude probe rod and the inner wall of the firstchannel; and a filtering assembly is arranged at one end of the guide rod away from the stone remover handle. According to the device, calculi in the body of a patient are crushed through lasers and ultrasound, the problem that hard calculi cannot be crushed or cannot be completely crushed is solved, and the lithotripsy efficiency is improved; and by arranging the filtering assembly, large stone particles can be prevented from blocking the stone removing channel, and the stone removing efficiency is improved.

The invention discloses a high-efficiency holmium laser. The laser comprises a resonant cavity, a light condensation cavity, a laser crystal rod, and a pulse xenon lamp. The light condensation cavity comprises a ceramic reflector, a cerium-doped quartz socket tube, current guide baffle plates, crystal end heating sleeves, and a cavity structure. The cerium-doped quartz socket tube is embedded into the ceramic reflector, and the laser crystal rod passes through the cerium-doped quartz socket tube. Moreover, two ends of the laser crystal rod are supported by the cavity structure, thereby achieving the sealing of the interior and exterior of the cavity. The two crystal end heating sleeves respectively sleeve two ends of the laser crystal rod, and are fixed through the cavity structure. The pulse xenon lamp passes through the ceramic reflector, and two ends of the pulse xenon lamp are supported by the cavity structure, thereby achieving the sealing of the interior and exterior of the cavity. The current guide baffle plates with small holes are disposed at two ends of the ceramic reflector. The laser can achieve that laser crystal works under lower temperature, greatly improves the efficiency, prevents the moisture condensation on an end face of an optical device from causing sudden damage, and guarantees the long-time reliable operation.

The invention relates to a push type bladder diverticulum calculus removing device. The push type bladder diverticulum calculus removing device comprises a lens body, wherein one end of the lens body is connected with a retractable frame body, a closing assembly is arranged at the other end of the retractable frame body, an elastic cylinder film is sheathed outside the retractable frame body, the retractable frame body and the closing assembly retract and close by virtue of a driving assembly, a calculus crushing assembly and an endoscope imaging assembly are arranged in the retractable frame body, and the calculus crushing assembly is a holmium laser calculus crushing assembly and comprises laser fibers. The push type bladder diverticulum calculus removing device can limit a calculus in a bladder diverticulum in an enclosed space, calculus residue cannot enter into a human body while a calculus crushing operation is carried out in the enclosed space, no calculus residue is produced after operation, and no damage is caused to surrounding tissues; meanwhile, interference of calculus chips to view of an endoscope is smaller, influence on an operation process is small, operation efficiency and an operation result can be obviously improved, and pain and burden of a patient can be obviously alleviated.

The invention discloses a dual-path holmium laser which comprises an outer frame, a laser body, a sealed resonant cavity, a coupling cavity, an improved optical adjusting rack, resonant cavities, a screw rod, a connecting plate, and connecting rods. The screw rod is provided with two sections of threads which are screwed in opposite directions. Two thread sleeves are arranged on the screw rod. Oneend of each connecting rod away from the connecting plate is hinged to the nearby thread sleeve. The improved optical adjusting rack includes a center spacer, an adjusting plate, a first through hole, second through holes, third through holes, planar lenses, threaded columns, inner screw holes, steel balls, and arc slots. As the two resonant cavities in the original sealed resonant cavity are changed from a fixed structure to an adjustable structure, the resonant cavities can be quickly adjusted and restored in the later stage even if the resonant cavities vibrate. Compared with the prior artin which the sealed resonant cavity needs to be dissembled in order to maintain resonant cavities, the maintenance of the resonant cavities in the invention is simpler and more convenient. The redesigned improved optical adjusting rack is more in line with the improved sealed resonant cavity, and the improvement is reasonable.

The invention provides a continuous negative-pressure suction apparatus for ureteroscopic holmium laser lithotripsy use. The continuous negative-pressure suction apparatus for ureteroscopic holmium laser lithotripsy use comprises a three-way infusion device, a liquid suction hose, a ureteral catheter, a first sealing cap, and a second sealing cap; one end of the three-way infusion device is sleeved with the liquid suction hose; the ureteral catheter is fixedly mounted at one end of the three-way infusion device, and communicates with the three-way infusion device; and a junction of the three-way infusion device and the ureteral catheter is sleeved with the first sealing cap. The continuous negative-pressure suction apparatus for ureteroscopic holmium laser lithotripsy use provided by the invention has the advantages of being low in cost, convenient to use, and capable of maintaining good field of view, improving lithotripsy efficiency, shortening operation time, preventing stone from moving up, increasing stone clearance rate, reducing renal pelvis pressure, reducing risk of infection, decreasing possibility of falling of the liquid suction hose due to pulling of the liquid suctionhose, ensuring smooth conduction of the operation and the like.

The invention discloses a Q-switched holmium laser. The Q-switched holmium laser comprises a composite resonant cavity, a Tm/Ho composite gain medium, a Q-switched element and a pumping source; the composite resonant cavity comprises a laser resonant cavity and a filtering resonant cavity; the filtering resonant cavity and the Q-switched element are sequentially positioned in the laser resonant cavity along the light path direction; the Tm/Ho composite gain medium is located in the filtering resonant cavity; the pumping source is positioned outside the laser resonant cavity; wherein the filtering resonant cavity is used for separating Tm laser from Ho laser. The laser comprises a composite resonant cavity, the composite resonant cavity realizes separation of Tm laser and Ho laser, and theTm laser is confined in a filtering resonant cavity, so a Q-switched element only influences the Ho laser, and the Tm laser can effectively excite the Ho laser to form stable Q-switched pulse output.

The invention discloses a maskless projection lithography system. The maskless projection lithography system comprises a Laser, an LS collimating lens group, a DOE (diffractive optical element), an LSR laser speckle attenuator, an LCOS reflective liquid crystal spatial light modulator, a Tube Lens, an Objective infinity conjugate microscope, a Photoresist photolithography plate, a L1 lens, a L2 lens, a P1 polarizing element and a P2 polarizing element; a laser is transmitted to the LS collimating lens group, the DOE, the L1 lens, the LSR laser speckle attenuator, the L2 lens, the P1 polarizingelement, a PBS polarization splitting prism, the LCOS reflective liquid crystal spatial light modulator, the P2 polarizing element, the Tube Lens, and the Objective infinity conjugate microscope andis finally projected and imaged on the Photoresist photolithography plate. Through control of the parameter designs of the DOE, the L1 lens and the L2 lens, the area of the collimation light irradiated on the LCOS is equal to the area of the effective pixel of the collimation light to fully utilize the light energy, effectively reduce the edge diffraction phenomenon and improve the projection andimaging quality.

The invention discloses a bendable ureteral sheath, which comprises a dilating tube, a sheath tube, a sheath tube joint, a fixed joint, a traction steel wire, a locking mechanism, a negative suction joint, and an adjustment device. It consists of a curved section and a soft bendable section that can be bent in two directions. The semi-soft non-bendable section is connected to one end of the sheath tube joint. The expansion tube passes through the sheath tube and the sheath tube joint. One end of the expansion tube is connected to a fixed The joints are connected, and the fixed joint is connected with the sheath tube joint through a locking mechanism for locking the combination of the sheath tube and the expansion tube, and a traction steel wire is passed through the sheath tube. The present invention can not only keep the combined locking of the sheath tube/dilator tube during dilation, but also ensure the locking of the flexible ureteroscope during operation by adopting the rotation locking method, especially when it is used in "flexible ureteroscope holmium laser lithotripsy", it can ensure that the flexible ureteroscope The holmium laser locks the position to prevent damage to the kidney during surgery.

The invention relates to a holmium laser electric excision system for precisely treating sinus tract. The holmium laser electric excision system comprises a dilator, a micro intracavitary endoscope, a metal guide wire, a holmium laser device, an electric excision device, and a hydraulic pressure flushing system. The dilator comprises a handle, a connecting rod, and a dilation head. The micro intracavitary endoscope comprises an endoscopic sheath, a hydraulic pressure flushing system, and an endoscopic sheath seat. An instrument passage, a water inlet passage, a water outlet passage and a cold light source passage are arranged inside the endoscopic sheath. The hydraulic pressure flushing system comprises a connecting sleeve, a water inlet pipe, and a water outlet pipe. The holmium laser electric excision system for precisely treating sinus tract has the advantages that unhealthy scar tissues on the wall of the sinus tract can be precisely cut under direct vision, and the healthy tissues surrounding the sinus tract are protected to an utmost extent while precise treatment is carried out to the sinus tract, and precise, minimally invasive treatment on the sinus tract is truly achieved; and the holmium laser electric excision system is simple to operate and easy to learn, and is advantageous for wide clinical promotion by performing a magnified visible operation by means of the endoscope, thereby benefiting the masses.

The present invention relates to a bladder calculus lithotripter. The bladder calculus lithotripter comprises a lithotriptoscope outer sheath, a lithotriptoscope inner sheath, a multifunctional endoscope and a hole obturator, the lithotriptoscope outer sheath comprises an outer sheath conduit, a water outlet valve seat and a water inlet valve seat; a circulating channel can be formed between the water outlet valve seat and the water inlet valve seat; the lithotriptoscope inner sheath comprises an inner sheath conduit and an inner sheath base seat; the hole obturator comprises a guide head anda hole obturator base seat; the multifunctional endoscope comprises an endoscope conduit and an operating handle; the multifunctional endoscope is also provided with a light source system, an inward vision system and a lithotriptic channel; and the lithotriptic channel is used for placing an air pressure trajectory probe rod or an optical fiber. Advantages are as follows: the bladder calculus lithotripter can provide a treatment channel for a holmium laser lithotripsy, can also be used for carrying out an air pressure trajectory lithotripsy, forms a water circulation loop, can keep clear visual field, is moderate in thickness, can reduce probability of urethral stricture, reduces urethral injury, and is safe to use, convenient to operate and beneficial to washing.

The invention discloses a holmium laser ultrasonic stone treatment machine. The holmium laser ultrasonic stone treatment machine comprises a box body, wherein the bottom of the box body is provided with supporting legs, the bottom end of each supporting leg is provided with a roller, one side of the box body is provided with a display mechanism and a first telescopic mechanism, the first telescopic mechanism comprises a rotating handle located on one side of the box and at the top portion of the display mechanism, the junction of the rotating handle and the box body is provided with a clampingplate, and one end of the rotating handle is provided with a rotating shaft inserted in the box. The holmium laser ultrasonic stone treatment machine has the advantages that the movement of a telescopic tube on a movable plate is pushed by pressing a first air bag to inflate a gas cylinder though a leading-in pipe in a human body according to a position on a ultrasonic module, then the stone is crushed through a laser fiber, and the broken stone is taken in through a cleaning port; the stone can be effectively crushed in the whole process, the stone is cleaned, the accuracy of the operation is greatly increased, and the holmium laser mechanism can move quickly and effectively through expansion and contraction, thereby speeding up the operation and saving the operation time.

The invention provides a lithotripsy wire supporting catheter. The catheter comprises a first catheter section, a second catheter section and a third catheter section which are sequentially communicated; a lithotripsy wire channel is arranged in the catheter; a balloon is arranged outside the catheter; and a channel for inflating the balloon is arranged inside the catheter. In a working state, thefirst catheter section and the second catheter section enter a human body, and the third catheter section is located outside the human body. The device is placed into a common bile duct through an ERCP clamp channel; small calculi in the common bile duct can be dragged into the duodenum through the common bile duct by crossing the calculi and filling the balloon; when the common bile duct calculus is large, the head end of the implanted catheter is close to the calculus, a lithotripsy wire is implanted through the catheter, the tail end of the wire is connected with a plasma, microelectrode or holmium laser wire, a wire head end electrode is close to the common bile duct calculus for lithotripsy, and after the calculus is broken, the balloon is filled to drag the large calculus into the duodenum. The lithotripsy wire supporting catheter requires low manufacturing cost and is easy to popularize.

The invention discloses a combined structure of a ureteroscope catheter and a ureter sheath. The combined structure comprises a catheter sheath and a catheter which is coaxially inserted into the catheter sheath and can move front and back in the axial direction of the catheter sheath, a calculus and liquid discharging connector is connected to the side part of the catheter sheath, one end of thecatheter is coaxially fixed into a catheter handle, and a water inlet and instrument channel is formed in the catheter in the axial direction. A water inlet and instrument connector communicating withthe water inlet and instrument channel is arranged on the catheter handle, a catheter cap is fixed at the other end of the catheter, and a guide structure which communicates with the water inlet andinstrument channel and can enable water entering the water inlet and instrument channel to flush and drain towards one side of the catheter handle is arranged in the catheter cap. After sheathing, theureter sheath can be used as a surgical instrument and penetrates into an endoscope in cooperation with a ureteroscope, calculus breaking and discharging operation is performed in cooperation with holmium laser and other instruments through the water inlet and instrument channel connector, and fine calculi fall off from an affected part under the action of a lateral flushing channel of the catheter cap and a lateral water outlet of the catheter cap. The calculi are discharged along with return water through a small arc tube sheath section of a special-shaped sheath tube.

A super-pulse solid thulium laser comprises a resonant cavity, one end of the resonant cavity is closed, and the other end of the resonant cavity is communicated with a coupler; a high-reflectivity mirror, an acousto-optic Q-switch, a thulium rod, a high lens and a focusing mirror are coaxially and fixedly arranged in the resonant cavity; an LD semiconductor palladium strip for projecting a lightsource to the thulium rod is arranged at the periphery of the thulium rod, and the thulium rod and the LD semiconductor palladium strip are connected with a power supply; one end of the thulium rod isprovided with the acousto-optic Q-switch, and the other end of the thulium rod is provided with the high lens, the focusing lens and the coupler; and the other end of the acousto-optic Q-switch is provided with the high-reflectivity mirror. The thulium rod and the LD semiconductor palladium strip jointly emit the light source, the light source is amplified by the resonant cavity to form laser with the power dozens of times higher than the output power, and the pulse thulium laser is obviously superior to a pulse holmium laser in the prior art in the aspects of improving the pulse frequency, the pulse peak value and the tissue absorptivity.

The invention discloses a high-simulation ultrasonic and X-ray guided percutaneous nephrocentesis nephroscopy skill training model and a mold thereof. A kidney model is a sample mold, the mold is made of silicon rubber and resin, and precious rubber with the same density as the kidney and surrounding tissues of a human body is formed in the mold and firstly snapped into a kidney area groove of a high-simulation human body model; a nephroscope can be implanted through percutaneous renal puncture under the guidance of ultrasound or X-rays, a renal pelvis, a kidney large calyx, a kidney small calyx and a renal papilla can be observed through the nephroscope, percutaneous renal puncture biopsy, micro-fistulization calculus removal, ultrasound-guided percutaneous nephroscope air pressure ballistic ultrasonic or holmium laser lithotripsy and the like are carried out, the simulation effect is highly simulated, just like operation is carried out on a real patient, and the teaching effect of skill training of skin-kidney puncture nephroscopy can be remarkably improved.

The invention discloses a holmium laser stone crusher with a portable body temperature monitoring function, and relates to the technical field of medical equipment. The stone crusher comprises a holmium laser system and a temperature sensing and feedback system, wherein the holmium laser system is used for providing laser for stone crushing, the temperature sensing and feedback system is used formonitoring temperature information of the holmium laser system during stone crushing, and when the temperature information measured by the feedback system exceeds a preset threshold value, the holmiumlaser system is controlled to pause laser emission; and when the temperature information measured by the feedback system is lower than the preset threshold value, the holmium laser system is controlled to emit laser again. According to the stone crusher, the temperature of a stone crushing part in a laser stone crushing operation can be rapidly and accurately monitored in real time, and the use safety of the stone crusher is improved.

The invention discloses a holmium-laser ultrasound stone cleaning and crushing device. The device comprises a support table; the support table is provided with a box body, a support arm and a collecting box; the support arm is positioned between the support table; multiple support legs are installed at the bottom of the support table; moving wheels are installed at the bottoms of the support legs;a support frame which is at the bottom of the box body is installed on the top of the support table; an ultrasonic module is installed at the top of the top of the inner wall of the box body. The device has following beneficial effects: by providing a second telescopic mechanism, the sleeve supports the connecting tube; the movement of the telescopic rod is driven by the rotation of the rotatinghandle; through the movement of the support sub-rod inserted in a support mother rod, a joint is gripped by the moving arm; the telescopic tube is driven to expand and contract by the rotating wheel of the first telescopic mechanism; in the process of holmium laser lithotripsy, it is not necessary to hold the holmium laser by hand, which greatly reduces the labor of medical staff, increases the flexibility of holmium laser, speeds up the progress of surgery, and improves the efficiency of surgery.

The invention discloses an intermediate infrared spectrometer for realizing nanosecond time resolution by using pulse warming. The intermediate infrared spectrometer is used for measuring dynamic structure change of protein, and comprises a wideband tunable carbon oxide laser for emitting intermediate infrared detection laser to a to-be-detected protein solution, a nanosecond Q-modulation holmium laser for emitting pumping laser to heat the to-be-detected protein solution, a pumping detection light path system for detecting the strength of the intermediate infrared detection laser penetrating through the to-be-detected protein solution, and a data acquiring system for acquiring the strength data detected by the pumping detection light path system. The intermediate infrared spectrometer disclosed by the invention can be used for accurately measuring instant infrared spectrometry data of protein dynamic structure change and dynamics information of the protein dynamic structure change, the high-precision measurement on the protein secondary protein structure dynamic structure can be realized, and the infrared spectrometry data precision can reach 1*10<-4>OD.

The invention discloses an intestinal calculus and ileus treatment device by utilizing holmium lasers to crush stones. The device comprises a device box body, in which an air pressure device is arranged. The air pressure device comprises an air pressure pump. One side of the air pressure pump is provided with an air pressure output device. The air pressure output device comprises an air pressure bottle, in which a movable rod is arranged. A telescopic spring is arranged on the movable rod in a sleeving manner. One end of the movable rod is provided with a pressure board, below which an air pressure output bin is arranged. One side of the air pressure output bin is provided with an input opening. The other side of the air pressure output bin is provided with an output opening. An electronic element bin is arranged above the air pressure device. An information memorizer is arranged in the electronic element bin. One side of the information memorizer is provided with an ultrasonic wave source. The intestinal calculus and ileus treatment device by utilizing holmium lasers to crush stones has the following beneficial effects: treatment cost is reduced; data of lesions of patients is recorded, which is conducive to comparison of states of patients; and the device is easy to promote and apply.