21 results about "Bone wax" patented technology

This invention discloses a hemostatic bone wax delivery device for minimally invasive spinal surgery, belonging to the technical field of minimally invasive spinal surgical instruments. The device includes a handle with a movable groove at its top and a first mounting groove at its bottom. A fixed seat is located at the bottom of the first mounting groove, and a telescopic mechanism is installed at its center. A pushing mechanism is installed within the movable groove, providing thrust to the telescopic mechanism. This invention, through the design of the handle, telescopic mechanism, and pushing mechanism, converts mechanical energy into kinetic energy using the mechanical principles of instruments. It allows the hemostatic bone wax to be firmly pressed onto the bleeding point by the pressure of a spring component without requiring the surgeon to rotate their wrist. Furthermore, it eliminates the need for wrist rotation; simply pushing the handle does not interfere with the surgeon's view of the camera, thus improving surgical outcomes.

The utility model relates to the field of medical instruments, and particularly discloses a bone wax gun which comprises a fixed gun body, a movable gun body, a fixed handle, a movable handle, a sleeve, a push rod, a piston head, a first spring piece, a second spring piece and a limiting block. Bone wax is beaten into a bone errhysis point, the end of the fixed gun body and the end of the movable gun body are of a long and thin structure and can stretch into a narrow space for operation, the hand does not need to make contact with the errhysis point, the sleeve and the push rod can also be detached for disinfection and replacement, and therefore the sanitary condition in the operation process can be guaranteed.

The invention provides a spine abrasive drill sleeve with bone wax for assisting hemostasis, which comprises a pipe body for an abrasive drill to extend into, a limiting part for preventing the abrasive drill from polishing nerves below sclerotin is arranged below a first end part, extending into a patient, of the pipe body, and the spine abrasive drill sleeve further comprises a bone wax pipeline for accommodating the bone wax, a connecting piece is arranged between the limiting part and the first end part of the pipe body, a wax outlet is formed in the connecting piece, and the wax outlet is communicated with a bone wax pipeline. When the abrasive drill works, the bone wax can be smeared on the surface of the bone under the rotation of the abrasive drill after being extruded, so that a channel and a bone wax smearing device do not need to be additionally arranged, the bone wax can be smeared on the bone part while the abrasive drill grinds through the abrasive drill sleeve, an overlarge surgical working channel can be avoided, the operation can be simplified, and the working efficiency is improved. Operation of the abrasive drill and the bone wax is achieved on the independent abrasive drill sleeve, multiple doctors do not need to operate in a matched mode, and meanwhile the requirement for the experience level of the doctors is not too high.

The utility model relates to the technical field of medical instruments, and particularly discloses a mold for absorbable bone wax sample preparation, which comprises a base, a mold groove is arranged in the middle of the base, a cuboid mold is placed above the mold groove, and a support plate is fixedly connected above the base; the die-casting mechanism comprises an anti-sticking plate located above the die, four first springs are evenly distributed above the anti-sticking plate, and a pressing plate is fixedly connected to the upper portions of the first springs; the cleaning mechanism comprises an air cylinder and a temperature sensor, the air cylinder is fixedly connected to the rear side area of the inner wall of the supporting plate, second springs are arranged on the two sides of the air cylinder, and scraping plates are fixedly connected to the ends, away from the inner wall of the supporting plate, of the second springs; after raw materials needed for manufacturing bone wax are injected into the mold groove, the pressure casting mechanism is started, the cleaning mechanism is started to remove residues on the surface of the mold after forming, manual intervention is remarkably reduced, material loss is reduced compared with a traditional mold, and the device has the advantages of being convenient to clean and maintain, stable in forming quality and the like.

The utility model provides a bone wax softening bag which comprises a bag body, one surface of the outer side of the bag body is provided with a containing groove used for containing bone wax for softening, and the inner side of the bag body is provided with an open interlayer used for containing the bone wax to be softened. A bag body water injection heating softening mode is adopted to replace a traditional hand rubbing heating softening mode, direct contact between limbs and bone wax is reduced, the situation that in the operation process, water stains on the glove are mixed with blood and the bone wax, the adhesion degree of the bone wax is reduced, and the hemostatic effect of the bone wax is prevented from being affected can be effectively avoided; meanwhile, the bone wax bag is provided with the containing groove used for containing prepared bone wax and the open interlayer used for containing a whole piece of unprepared bone wax, the bone wax bag has the effects of being multipurpose, time-saving, labor-saving and capable of being used and taken at any time, and the mode that water is injected into the bag body for heating is adopted, so that the bone wax is heated more evenly, the softening effect is better, and the operation efficiency is improved.

The utility model discloses a foramen intervertebrale endoscope bone wax applicator which comprises a foramen intervertebrale endoscope body and a sleeve located in the foramen intervertebrale endoscope body, an applying device is arranged on the outer surface of the sleeve and comprises a spherical applying head, and the spherical applying head moves to apply bone wax to an operation area. According to the bone wax applicator under the foramen intervertebrale endoscope, a processing device is arranged, bone wax is pushed to an applying area, a cylinder and a sleeve are fixedly installed, a motor drives a gear to rotate, the gear rotates to drive a rack to move in the cylinder which is connected in a sliding and inserted mode, the cylinder is connected with a rotating groove in a sliding and inserted mode through a supporting rod, and a sleeve rod moves in the cylinder; the design of the threaded groove facilitates more uniform pushing of the bone wax, the control button is used for controlling starting of the motor and is fixed to the outer surface of the handle, a user can conveniently press and operate the handle when holding the handle, and the bone wax smearing device has the effect of conveniently smearing the bone wax on the bleeding cancellous bone.

The invention relates to antibacterial absorbable bone wax and a preparation method thereof. The bone wax comprises the following raw material components in parts by weight: 20-90 parts of a lysine or polylysine modified matrix material, 2-20 parts of an auxiliary material and 0.5-10 parts of an emulsifier. Compared with the prior art, the bone wax product provided by the invention can simultaneously realize various properties such as degradation, osteogenesis and antibiosis, and the popularization and application of the bone wax product are promoted.

The multifunctional low-temperature plasma knife comprises a wire, a grip, a fixed connecting plate, a limiting sleeve, an insulating protective sleeve, a knife head, a sliding control tube, a sliding limiting clamping shaft, a reset spring and a limiting clamping plate, the wire is fixedly connected to the tail end of the grip, the fixed connecting plate is fixedly connected to the front end of the grip, and the limiting clamping plate is fixedly connected to the tail end of the grip. And the limiting sleeve is fixedly connected to the front end of the fixed connecting plate. In the using process of the low-temperature plasma knife, bone wax added into the adding pipe can be conveniently added to the knife head, so that the low-temperature plasma knife can achieve the rapid hemostasis effect when bone bleeding occurs, tissue ablation and cutting can be achieved through the low-temperature plasma knife, meanwhile, blood in small blood vessels can be coagulated through plasmas, and therefore the blood in the small blood vessels can be rapidly removed. The device is simple in structure, convenient to use, capable of achieving the hemostasis effect, capable of stopping bone bleeding and convenient to control and use in the use process, bone wax can be automatically and conveniently added, and the treatment efficiency is greatly improved.

The invention discloses a bone wax applicator for a spine endoscope, and relates to the technical field of medical instruments. The device comprises a sleeve and a push rod, a hollow handle is arranged at one end of the sleeve, a limiting long hole is formed in the side wall of the handle, a smearing block is arranged at the other end of the sleeve, and a protrusion in the axis direction of the sleeve is arranged at the outer end of the smearing block. The push rod is inserted into the sleeve and the handle, the push rod is of a solid rod-shaped structure, one end of the push rod is connected with a limiting rod arranged in the limiting long hole in a penetrating mode, and a spherical ejector block is arranged at the other end of the push rod. Compared with the prior art, the bone wax pushing and smearing device can solve the problems that an existing bone wax pushing and smearing device is too large in occupied space, complex in structure and poor in adaptability.

The invention discloses absorbable bone wax as well as a preparation method and application thereof, and relates to the technical field of medicines. The absorbable bone wax comprises the following components in parts by weight: 8-25 parts of calcium stearate, 15-35 parts of vitamin E or a derivative thereof, 12-45 parts of polyethylene glycol or a derivative thereof and 12-50 parts of calcium sulfate. The bone wax is endowed with excellent blocking and hemostasis performance through calcium stearate, the hardness of the bone wax is adjusted through vitamin E and a derivative thereof, and under the synergistic effect of calcium sulfate and polyethylene glycol or a derivative thereof, the relationship between the blocking and hemostasis performance of the bone wax and the loosening time is effectively balanced, and it is guaranteed that the bone wax has the good hemostasis effect and also has the good hemostasis effect. And in addition, the wet and slippery wet-proof coating has the characteristics of good operation performance, no wet and slippery feeling and non-sticking to gloves.

1. The name of the design product: bone wax filler. 2. The use of the design product: used in orthopedic minimally invasive surgery (such as arthroscopic surgery, unilateral double-channel endoscopic surgery under the endoscope, or intervertebral foramen surgery), under the working channel of the endoscope, to deliver bone wax to the bone wound site for hemostasis. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: combined state Figure 1. 5. Other components that need to be explained: component 1 is a push injection, component 2 is a tube body, component 3 is a quantitative pre-charged push handle, and component 4 is a quantitative push limit nut. 6. Other information that needs to be explained: the local enlarged view is marked at A in the front view of component 2.

The invention discloses absorbable bone wax and a preparation method thereof, and belongs to the field of biomedical materials. The absorbable bone wax is prepared from the following components in percentage by weight: 45 to 60 weight percent of sodium carboxymethyl cellulose, 30 to 50 weight percent of binary or terpolymer containing polyethylene glycol (PEG), 5 to 10 weight percent of calcium stearate and 1.25 to 3 weight percent of citric acid, the copolymer is obtained by copolymerization of PEG and one or two of caprolactone and lactide. Sodium carboxymethyl cellulose is purified to reduce endotoxin, the molecular weight of the copolymer and the proportion of each component are controllable, and an osteogenesis active material can be added. The preparation method comprises the steps of sodium carboxymethyl cellulose purification, copolymer and citric acid vacuum dehydration thermal crosslinking, component mixing and the like. The bone wax disclosed by the invention is good in absorbability, excellent in biocompatibility and simple and controllable in preparation process, can meet clinical bone hemostasis requirements, and has a good application prospect.

Surface preparation for sliding surfaces can enhance wear performance for surgical instruments such as surgical staplers which include reusable mechanisms that are used multiple times with single use reload cartridges. To reduce the potential for galling wear in a metal-to-metal sliding engagement, a combination of surface hardening, surface finish, and surface coatings can be applied to metallic components of a surgical instrument. Surface hardening techniques can allow further manufacturing operations such as welding without compromising the strength of the underlying metal substrate. With stainless steel metal substrates, as surface or case hardening techniques can reduce corrosion resistance, a surface coating can be applied to inhibit surface oxidation as well as provide a barrier to metal-to-metal contact. A further lubricious coating layer such as a bone wax coating layer can enhance galling resistance.

The invention belongs to the field of biomedical materials, and relates to absorbable bone wax and a preparation method thereof, and a bone repair product or a bone product comprising the absorbable bone wax. The preparation method comprises the following steps: taking required raw materials which are preheated or not preheated, and carrying out first blending stirring under the condition of 40-90 DEG C to prepare an intermediate product 1; cooling the intermediate product 1 to 10-30 DEG C, and carrying out second blending stirring under the condition of 10-30 DEG C to prepare an intermediate product 2; the intermediate product 2 is molded, and bone wax is prepared; the raw materials comprise a fat-soluble liquid component with a melting point lower than 80 DEG C and a solid component with a melting point of 100-500 DEG C. The composition is prepared from a fat-soluble liquid component with the melting point being lower than 80 DEG C and a solid component with the melting point being 100-500 DEG C. In the preparation process, by adjusting the heating condition, the situation that the cohesion of the fat-soluble liquid component with the low melting point and the solid component with the high melting point is increased due to heating in the processing process is reduced, and the content of the fat-soluble liquid component with the low melting point and the solid component with the high melting point is reduced. The finally prepared absorbable bone wax is reduced in cohesion, reduced in hardness and improved in adhesion, and can be directly used at room temperature, so that the use convenience is improved.

The invention relates to the technical field of bone section trephine in the lumbar foramen endoscope operation, in particular to a trephine for stopping bleeding of a bone section in the lumbar foramen endoscope operation. According to the technical scheme, the device comprises a trephine and a propeller fixedly arranged at the end of the trephine in a sleeving mode; a plurality of pits are formed in the side wall of the end, close to a saw blade, of the trephine, and the pits are filled with bone wax used for stopping bleeding during cutting. According to the trephine, the multiple pits are formed in the outer surface of the working section of the trephine, the bone wax is smeared in the multiple pits through the wax adding ring before an operation, the bone wax is smeared at the bleeding position in the incision process of the operation, and the problems that after a traditional trephine is used for cutting bone tissue, due to delayed hemostasis of the bone section, the visual field is disturbed, and hemostasis operation is difficult are solved; the effect of stopping bleeding immediately in the cutting process is achieved. The hemostasis efficiency in the lumbar foramen endoscope operation is improved, the hemostasis time is shortened, and the overall operation duration is shortened. And the difficulty of endoscopic hemostasis operation is reduced, remaining bleeding spots are reduced, and the operation safety and reliability are improved.

The invention provides absorbable bone wax and a preparation method thereof. The method comprises the following steps: respectively carrying out vacuum drying treatment on polycaprolactone and citrate, and storing for later use; taking polycaprolactone with a specified proportion and component, and carrying out melt blending to prepare a polycaprolactone melt; citric acid ester is weighed and added into the polycaprolactone melt, mechanical stirring is conducted, uniform mixing is conducted, and an absorbable bone wax precursor is prepared; under the condition of mechanical stirring, the degradable bone wax precursor is controlled to be slowly cooled to the room temperature, and the absorbable bone wax intermediate is prepared. The absorbable bone wax intermediate is put into a kneading machine to be sufficiently kneaded and then pressed into a mold, and the absorbable bone wax based on polycaprolactone is prepared. The absorbable bone wax can be ensured to have excellent hemostatic efficacy, good biocompatibility and biodegradability and good wet stability, and can meet the hemostatic requirements of larger bone wounds.

The utility model provides a bone wax applicator which comprises a handle, a connecting rod and at least one applying head, the handle is fixedly connected with the connecting rod, the applying head is arranged at one end, far away from the handle, of the connecting rod, and a rough surface is arranged on the applying head. According to the utility model, the rough surface is arranged on the smearing head, so that the adhesion effect of the bone wax on the smearing head can be improved, and the bone wax on the smearing head is prevented from falling off before entering a working area or during smearing. Meanwhile, the smearing head is driven to move by moving the connecting rod, smearing action can be conducted, and the smearing process is simple and easy to operate.

The invention provides a composite bone wax material as well as a preparation method and application thereof, and relates to the technical field of medical filling materials. The composite bone wax material provided by the invention is prepared from the following components in parts by mass: 1 to 10 parts of magnesium oxide, 1 to 10 parts of monopotassium phosphate, 1 to 5 parts of pregelatinized starch and 1 to 10 parts of polyethylene glycol, the mass ratio of the magnesium oxide to the monopotassium phosphate is (1-5): 1. In the composite bone wax material disclosed by the invention, magnesium oxide and monopotassium phosphate can react in a body fluid environment to realize rapid self-curing, so that the adhesion capability is favorably improved; by limiting the mass ratio of magnesium oxide to monopotassium phosphate, an alkaline environment can be formed, and formation of new bones can be induced; the pre-gelatinized starch provides thickening and gelling effects, and polyethylene glycol is used as a reaction medium to endow flexibility, so that the composite bone wax material can show better adhesion capacity in a continuous bleeding environment.

The utility model provides a bone wax smearing device under a spine endoscope. The bone wax smearing device comprises a smearing assembly, a transmission assembly and a holding assembly. The smearing assembly comprises a fixing part and a smearing part; the smearing part is connected with the holding assembly through the transmission assembly, and the holding assembly is provided with an elastic part; the fixing part and the smearing part are located on the two sides of the spine, and the smearing part is used for containing bone wax. When the elastic part is compressed, the smearing part can move towards the fixed part and be closed on the spine through the transmission assembly, so that the bone wax is smeared on the spine; when the elastic part is reset, the smearing part can be far away from the spine through the transmission assembly. The smearing part can be driven to be closed at the bleeding position or leave the bleeding position through compression and reset of the elastic part, and compared with the complex operation that medical aseptic cotton is used for wiping firstly and then bone wax is used for hemostasis in the prior art, the application is simple in structure and easy to operate.

The invention relates to absorbable bone wax with wet adhesion and a preparation method and application of the absorbable bone wax in the field of biomedical materials. The bone wax comprises a wet adhesion component and a hard tissue adhesion component, the wet adhesion component comprises at least two of the following substances: a phosphate group-containing substance, a carboxyl group-containing substance and calcium salt, the phosphate group-containing substance comprises a first polysaccharide modified with phosphoric acid amino acid, and the carboxyl group-containing substance comprises a carboxyl group-containing second polysaccharide; the hard tissue adhesion component comprises at least two of the following components: an oil-soluble solvent, a stearic acid derivative, a polyoxypropylene polyoxyethylene block copolymer and polyethylene glycol. The bone wax provided by the invention is unique in formula and low in hardness, has good wet environment adhesiveness, is convenient to use in a wet environment under endoscopic surgery, and can improve the use convenience.

The invention relates to absorbable bone wax for promoting bone healing and a preparation method thereof, and belongs to the technical field of bone healing materials, the bone wax comprises a degradable copolymer, PTMC, magnesium-calcium silicate-biological peptide composite microspheres, mesoporous silica loaded panax notoginseng saponins and hydrogenated castor oil. The degradable copolymer is prepared by reacting PEG (Polyethylene Glycol), stannous octoate, D, L-lactide and epsilon-caprolactone and precipitating. The magnesium-calcium silicate-biological peptide composite microspheres are prepared by loading biological peptide on porous magnesium-calcium silicate microspheres and then coating the biological peptide with polydopamine. The biological peptide is a peptide fragment between 1kDa and 5kDa obtained by carrying out step-by-step enzymolysis on urechis unicinctus through papain and trypsin. All the components are compounded according to a specific proportion to prepare the bone wax, the limitation that traditional bone wax is poor in degradability and single in function is broken through, and the integrated functions of hemostasis, degradation and efficient bone induction are achieved. Through cooperation of the controllable degradation base material and the high-activity functional component, precise matching of the degradation rate and the bone regeneration period is achieved.