61results about How to "Clear surgical field" patented technology

The devices and methods shown provide for the minimization of extravasation during arthroscopic surgery. The anti-extravasation sheath allows a surgeon to drain excess fluids from the soft tissue surrounding the surgical field during arthroscopic surgical procedures.

An arthroscopic inflow and outflow sheath providing an improved inflow and outflow system reducing the diameter of a continuous flow system while providing fluid management during arthroscopy. The improved arthroscopic inflow and outflow sheath comprises an elongated atraumatic sheath having an inner surface, outer surface, proximal end, and distal end. The atraumatic sheath further comprises plurality of ribs or webs extending from the inner surface of the sheath and designed to contact an outer surface of the arthroscope thereby creating outer lumens facilitating the inflow and outflow of fluid to a surgical site.

A removable, resilient atraumatic sheath for arthroscopic instruments. The sheath covers sharp edges on the arthroscopic instrument, particularly the distal tip of the rigid cannula, and thereby protects tissue and objects near a surgical site from accidental trauma. The sheath may be provided in the form of an inflow / outflow sheath that allows a surgeon to irrigate and drain a surgical field without the use of a separate irrigation instrument.

An arthroscopic inflow and outflow sheath providing an improved inflow and outflow system reducing the diameter of a continuous flow system while eliminating the need for a third portal during arthroscopy. The improved arthroscopic inflow and outflow sheath comprises an elongated atraumatic sheath having an inner surface, outer surface, proximal end, and distal end. The atraumatic sheath further comprises plurality of ribs or webs extending from the inner surface of the sheath and designed to contact an outer surface of the arthroscope creating outer lumens facilitating the inflow and outflow of fluid to a surgical site.

A removable, resilient atraumatic sheath for arthroscopic instruments. The sheath covers sharp edges on the arthroscopic instrument, particularly the distal tip of the rigid cannula, and thereby protects tissue and objects near a surgical site from accidental trauma. The sheath may be provided in the form of an inflow / outflow sheath that allows a surgeon to irrigate and drain a surgical field without the use of a separate irrigation instrument.

The bloodless liver exsector has one exsector head, one water control button connected through water pipeline to the exsector head, one main control button connected through wires to the exsector head, one power source with circuit board, one suction tube set in the front end of the exsector head, one suction cap covering the front end of the exsector bar and communicated with the suction tube and one flushing tube. During operation, the suction cap with negative pressure sucks out the liquid and other rabbish in the operational view field, and the liver exsector exsects liver tissue while blocking small blood vessels and coagulating electrically for hemostasis. The operation process has clear view field and is safe, and the bloodless liver exsector has compact structure, small size and easy operation.

The invention discloses an endoscope for a whole-course visible abortion operation, which comprises a computer (14), a CCD camera (15) and an endoscope component (16), wherein a photosensitive device of the CCD camera (15) is opposite to an eye lens of the endoscope component (16), and a signal output end of the CCD camera (15) is connected with a signal input end of the computer (14) through a data wire (17). The endoscope is characterized in that a light source of the endoscope component (16) consists of a lighting source and an infrared imaging light source (10) capable of generating infrared light of which the wavelength is more than 700 nanometers. The endoscope has a simple structure, is easy to implement, is favorable for improving the operation efficiency and the rate of success, improves the safety of the operation, and solves the difficulty of an unclear visual field during a hemorrhagic operation.

The invention provides an intracavitary visible photodynamic therapeutic instrument. The instrument comprises an endoscope or inner endoscope, a laser light source and a laser conductive fiber, wherein one end of the laser conductive fiber is arranged in a cold light source channel of the endoscope, while the other end is connected with the laser light source; the endoscope or inner endoscope is one of a laparoscope, a joint endoscope, a thoracoscope or neuroendoscope, a gastroscope, a cystoscope and the like. The instrument realizes visible lighting in a body cavity by using the endoscope or inner endoscope, and introduces the laser light source to the lesion location in the body cavity so as to provide clear view for implementing gross resection surgeries, radiate by laser, and increase time for killing tumor cells. Furthermore, the instrument has small toxic or side effect, overcomes the defects of local cancer tissue invasion, lymph node metastasis, hematogenous metastasis, tumor cell detachment and implantation and the like which cannot be solved by chemotherapy, radiotherapy and other means. Based on application of photosensitizer, the actual range of a malignant lesions can be displayed, and 'target lesion' can be treated actively. The instrument has reasonable and simple structure, and can provide visible lighting in the body cavity to implement effective treatment on the 'target lesion'.

The invention discloses a multifunctional incision dilatation device for an operation. The multifunctional incision dilatation device comprises a left clamp assembly and a right clamp assembly, the left clamp assembly comprises a first handle part and a first distraction arm; the first handle part is fixedly connected with one end of the first distraction arm; the right clamp assembly comprises asecond handle part and a second distraction arm, the second handle part is fixedly connected with one end of the second distraction arm, clamp heads are fixedly connected to the other ends of the first distraction arm and the second distraction arm, lamplight assemblies are arranged on the sides, close to each other, of the two clamp heads, and constant-temperature heating wires are embedded in the upper ends and the lower ends of the sides, away from each other. According to the surgical clamp, the lamplight assembly is arranged in the clamp head, and the LED cold light lamp, the condensing lens and the reflector are arranged on the lamplight assembly, so that the surgical clamp can meet the requirements of lacuna illumination, poor illumination and frequent correction of a shadowless lamp of a deep surgical incision, has a washing and cleaning function, and ensures that a surgical field is clear.

The invention relates to a facet joint retractor, which is formed by hinging two tong arms a hinge pin. The facet joint retractor is characterized in that one sides of front ends of the two tong arms are respectively provided with a cantilever; each cantilever is provided with a kirschner wire hole; inner sides of rear parts of the two tong arms are respectively provided with a spring piece; free ends of the two spring pieces are mutually engaged; the tail end of one of two tong arms is connected with a trapezoidal lock by a lock pin. When the facet joint retractor provided by the invention is used, firstly, two kirschner wires respectively penetrate skeletons which correspond to a facet joint, so that the two kirschner wires are parallel. Then, the two kirschner wires are respectively led into the kirschner wire holes arranged in the cantilevers to oppositely squeeze the rear parts of the two tong arms, so that the two cantilevers are mutually separated, and therefore, the facet joint is retracted to form a joint space, and the joint retracted state is locked and kept by the trapezoidal lock. The facet joint retractor provided by the invention has the advantages that the structure is simple, manufacturing is convenient, the use is convenient, a retracting effect is stable, an operating field is clear, operation techniques are convenient, and the operation time is reduced.

The invention discloses a medical universal drill. The drill comprises a drill bit, a rod body and a handle, wherein the drill bit comprises a drilling tool and a long rod, and can be an abrasive drill bit and a drilling bit for respectively achieving grinding and drilling functions. The drill further comprises a telescopic assembly used for adjusting the axial position of the drill bit, wherein the telescopic assembly comprises a pull sleeve and a locking nut, the pull sleeve comprises an open pipe, a threaded rod fixedly connected to one end of the open pipe and a frustum arranged on the outer side of the open pipe, gaps are formed in the open pipe and the frustum in the axial direction, and the locking nut is in threaded fit with the threaded rod; and in addition, the drill further comprises an impact assembly used for applying axial impact force to the drill bit; and the drill further comprises a steering assembly used for adjusting the angle of the drill bit. The angle and the length of the drill bit can be adjusted, so that no operation dead angle exists in a narrow operation field, pressure application is stable and uniform, drilling errors are reduced, operation is convenient and flexible, the using effect is good, and popularization and application can be achieved.

The invention discloses an ultrasonic osteotome for spine surgery. The ultrasonic osteotome comprises a shell, a liquid cooling mechanism, an ultrasonic osteotome body, a power supply structure and astorage mechanism, wherein the liquid cooling mechanism is fixedly installed in the shell; the ultrasonic osteotome body is arranged outside the shell, and the ultrasonic osteotome body communicates with the liquid cooling mechanism; and the power supply structure is fixedly installed in the shell, and the power supply structure is electrically connected with the ultrasonic osteotome body and theliquid cooling mechanism. The ultrasonic osteotome has the advantages that cooling liquid can be prevented from flowing into an incision of a patient, so that a clear surgical field can be effectivelyguaranteed, a doctor can smoothly carry out an operation on the patient without directly utilizing mains supply to supply power, the normal use of the ultrasonic osteotome during power failure can beeffectively guaranteed, the ultrasonic osteotome is convenient to store, and the ultrasonic osteotome is convenient to use; and a tool bit can be effectively prevented from being damaged due to touchor impact.

The invention provides an adjustable oral surgery cutting handpiece. The equipment comprises a head, a machine needle, a neck and an operating handle, the machine needle is installed at the bottom endof the head, one end of the neck is connected with the head, the other end of the neck is fixedly connected with the operating handle, a connecting sleeve is arranged at the end of the operating handle, an air return pipe, an air inlet pipe and a cooling pipe are arranged in the operating handle and extend out of the connecting sleeve, and the head is connected with the neck through a rotating shaft. A neck air inlet hole, a neck air return hole and a neck cooling water hole are formed in the neck, and the neck air inlet hole, the neck air return hole and the neck cooling water hole are communicated with the air inlet pipe, the air return pipe and the cooling pipe respectively.

The present invention discloses a smoke-removing and eschar adhesion-preventing electrocoagulation rod for laparoscope. The smoke-removing and eschar adhesion-preventing electrocoagulation rod for thelaparoscope comprises an outer sleeve pipe formed by a hollow insulating tubular body, a conductive rod and a control valve; an outer sleeve pipe mouth is arranged in front of the outer sleeve pipe,a front end of the conductive rod is provided with a metal electrocoagulation head, the conductive rod is axially arranged and fixed at a center of an inner cavity of the outer sleeve pipe, the outersleeve pipe is also axially provided with a water inlet passage and a smoke exhaust passage, and both ends are respectively provided with a water inlet and a smoke exhaust mouth, a water outlet, a smoke inlet and a control valve. Through the above arrangement, the smoke-removing and eschar adhesion-preventing electrocoagulation rod has functions of electrocoagulation, water flushing and smoking removing at the same time. When the electrocoagulation produces eschar, the smoke-removing and eschar adhesion-preventing electrocoagulation rod can prevent adhesion of the eschar with an electrocoagulation head by the water flushing, and avoids secondary bleeding caused by pulling. At the same time, the smoke-removing and eschar adhesion-preventing electrocoagulation rod can also suck smoke produced by the electrocoagulation, keeps clear and visible surgical field, and thus improves a hemostatic effect and surgery safety.

The invention discloses an auxiliary device for a maxillofacial surgeon operation. The auxiliary device comprises a square shell, a door plate, a drainage mechanism and a sterilization mechanism, an opening structure is arranged on one side surface of the square shell; the door plate is fixedly arranged on one side surface of the opening structure of the square shell through a spring hinge; the drainage mechanism is fixedly installed on the top wall of the square shell, the sterilization mechanism is installed in the square shell, the sterilization mechanism and the drainage mechanism are arranged in a matched mode, and the drainage mechanism comprises a fixed sleeve, a hose, a hollow handle, a hollow connecting rod, a hollow ball, a negative pressure pump, a connecting pipe, a quartz glass transparent substrate, a liquid discharging pipe and a liquid collecting bucket. According to the auxiliary device, effusion in the oral cavity of a patient in the operation process can be sucked out in time, so that it is guaranteed that a clear operation field can be provided for a doctor; and therefore, it is guaranteed that an operation can be conducted smoothly; the multiple UV lamp tubes can be used for conducting irradiation sterilization on liquid in the diversion channels in the quartz glass transparent substrate, and iatrogenic pollution can be avoided.

The invention discloses a drawable needle-shaped hemostasis electrode for the otorhinolaryngological department. The drawable needle-shaped hemostasis electrode comprises an operating handle, a metalelectrode stretching out of the initial end of the operating handle and a surgical connector which is connected with the tail end of the operating handle through a cable; the operating handle comprises a handle shell, a circuit board, an operating switch, a synchronous air valve, a suction pipe, a conveying pipe, an independent air valve and a drainage pipe; the metal electrode comprises a cutterbody part, a connecting part and a cutter head part which are connected with one another in sequence, the initial end of the cutter body part extends out of a sucking port of the initial end of the suction pipe, and the tail end of the cutter body part stretches into the initial end of the operating handle to be connected with the circuit board; the cutter head part is in a needle shape, the connecting part is in a bent arc shape, the cutter body part is in a flat shape, the included angle of 45 degrees is formed between the axial direction of the cutter head part and the axial direction of the cutter body part, needles of the cutter head part are distributed away from the cutter body part, and the length of the needles exceed the pipe radius length of the suction pipe. According to the drawable needle-shaped hemostasis electrode, precise cutting of mucosa and reducing of side injuries in an operation can be achieved, clearness of the surgical horizon is maintained, observation is facilitated, and the health of medical personnel is protected.

The invention discloses furacilin microsphere biocolloid liquid and a preparation method thereof. In the biocolloid liquid provided by the invention, a microsphere wall material prepared from carboxymethyl chitosan and sodium alginate wraps a furacilin solution to form a nanometer microsphere colloid system. The biocolloid liquid is non-toxic, non-irritant and non-sensitized to the human body whenbeing applied to clinic, and has good molds and fungi- killing, antimicrobial, anti-inflammatory, analgesic and ulcerative surface healing-promoting effects. The biocolloid liquid is externally usedfor the treatment of trauma, burns, purulent dermatitis, otitis media, dacryocystitis, vaginitis, bladder irrigation, hemorrhoids and the like, and can also be used for washing vapor electrotomy of wounds to achieve the effects of cooling, maintaining clear surgery field and promoting wound healing.

The invention discloses a disposable electrocoagulator with a smoke exhaust function. The electrocoagulator comprises a clamp clip, a pull rod, a clamp rod, a rotating wheel, a fixed handle and a movable handle; a pull rod connecting seat and a clamp rod connecting seat which are respectively connected to conducting wires are fixed in the fixed handle; the clamp rod is inserted into the rotating wheel and connected to the clamp rod connecting seat, and the pull rod penetrates out of the rotating wheel and is connected to the pull rod connecting seat and fixed on a pull rod seat on the movablehandle; the clamp rod connecting seat consists of a fixed outer sleeve, a rotating sleeve and a positioning pin, wherein the positioning pin is inserted into the clamp rod through the rotating wheel,the rotating sleeve fixedly sleeves the outer end of the positioning pin, and the rotating sleeve is rotatably arranged in the fixed outer sleeve; a smoke exhaust channel is reserved between the clamprod and the pull rod, a plurality of air inlet holes are formed at the position of the clamp rod close to the clamp clip, the clamp clip is provided with an air outlet hole close to the rotating wheel, a hole seat is arranged above the air outlet hole and sealed with the clamp rod, and the hole seat is provided with an installation hole connected to the air outlet hole; and a sealing ring sleeving the outside of the pull rod is arranged between the inner end of the clamp rod and the groove surface of the rotating wheel in a squeezing mode.

The embodiment of the invention relates to the technical field of clinical medical devices and discloses a craniocerebral operation tube. The craniocerebral operation tube provided by the embodiment of the invention comprises a tube body, a drainage tube and an operation tube, wherein the tube body comprises an intracranial end for inserting into the brain of a patient and an extracranial end reserved outside the brain of the patient; the drainage tube and the operation tube are both arranged in the tube body and extend from the extracranial end to the intracranial end, the end of the drainagetube close to the intracranial end is provided with a drainage port, the drainage tube discharges liquid in the brain to the extracranial end through the drainage port, and the operation tube is usedfor performing operation on a target position in the brain. The embodiment of the invention also provides an application method of the craniocerebral operation tube. The craniocerebral operation tubeand the application method of the craniocerebral operation tube provided by the embodiment of the invention can make the operation wound surface small and the time short, achieve more functions, andcan better meet the requirements of the concept of clinical rapid rehabilitation surgery.

The invention relates to a special multiple-hair transplantation machine for eyelash, beard, hairline hair and the like, belongs to the technical field of medical apparatuses, and aims to overcome thedefect that a conventional hair transplantation machine can only plant one piece of hair when operating once. The special multiple-hair transplantation machine is provided with a syringe tube assembly, a pressing key assembly, springs, a housing, a protecting cap, and bolt assemblies, wherein the syringe tube assembly comprises a plurality of syringe tubes; and the pressing key assembly comprisesa plurality of syringe cores, and the syringe tubes and the syringe cores are arrayed in straight lines or arc lines to be adaptive to the shape of the hair. For patients clinically needing to adopta hair transplantation surgery, the special multiple-hair transplantation machine can be used. During the surgery, nurses load hair to be transplanted in tips of the syringe tubes for standby application, and doctors can press a pressing key once, so that many pieces of hair can be transplanted in different surgery regions at the same time, and quick shaping can be realized. The special multiple-hair transplantation machine is used for operations, the surgery visual field is clear to distinguish, mutual extrusion of parenchyma can be avoided, the surgery time can be obviously shortened, the risks of complications of surgery hemorrhage, infection and the like can be reduced, the wounds can be reduced, traces do not exist after the recovery period, and the survival rate is increased.

The invention discloses an adjustable saliva suction device and system for department of stomatology. The adjustable saliva suction device comprises a supporting part, a tongue blocking part, a saliva suction part and an expanding part, wherein the supporting part is used for supporting upper teeth and lower teeth; the tongue blocking part is of a tongue-shaped structure, and one end of the tongue blocking part is connected with the supporting part; the saliva suction part is rotationally connected with the other end of the tongue blocking part; there is a cavity inside the saliva suction part, a plurality of saliva suction holes are formed in a working surface of the saliva suction part; the expanding part is rotationally connected with the saliva suction part, and is used for expanding buccal soft tissues and extending to an outer side of the oral cavity; and a saliva channel communicated with the saliva suction part is arranged in the expanding part. The device and system can solve problems of poor blocking or opening effect, obstructing a field of vision of a surgical area, and manpower consumption in an existing saliva suction technology, can adjust the degree of buccal mucosal expansion, and has functions intraoral supporting, tongue body protection, automatic saliva suction and the like.