17 results about "Bone chip" patented technology

A device and system for inserting and impacting bone dowel allografts or bone chips into a bone tunnel. The surgical impacting system includes a surgical tamp having a proximal end and a distal end with an elongated shaft extending therebetween. The surgical tamp has an inner channel extending therethrough from the proximal end to the distal end. The distal end of the surgical tamp can have a distal tip. The surgical tamp may have a handle at the proximal end or a proximal tip at the proximal end. The surgical tamp may also have one or more slots extending through the exterior surface of the elongated shaft and into the inner channel. The surgical tamp can be configured for insertion into a delivery tube. The delivery tube serves the purpose of containing a bone dowel or bone chips therein for smooth insertion into the joint.

One embodiment of the present invention provides a dental drill comprising: a hollow drill body that accommodates alveolar bone chips generated when forming an implant bed in the alveolar bone; a cutting part that is formed at an end of the drill body and forms the implant bed in the alveolar bone as the drill body rotates; and a pair of windows penetrating through the outer circumferential surface of the drill body and disposed to face each other, wherein the horizontal widths of the pair of windows are different from each other.

The invention discloses a medical orthopedic annular casing drill, and relates to the field of medical equipment, a drill bit is provided with an inclined cutting assembly, and chip removal assemblies are arranged between a drill body and the drill bit; the inclined cutting assembly comprises a tool face, a first auxiliary rear tool face, a second auxiliary rear tool face, a first main rear tool face, a front tool face and a second main rear tool face, wherein the first main rear tool face and the front tool face intersect to form a main cutting edge; the chip removal assembly comprises an inner cavity, an inner cavity face, an inclined opening and a vent hole, the inner cavity is formed in the drill bit, the inner cavity face is obliquely arranged in the inner cavity, and the inclined opening matched with the inner cavity face is formed in one end of the vent hole. The cutting edge inclination angle ensures the sharpness of the drill bit, the axial relief angle is formed by the reference plane included angle formed by the main cutting edge and the central axis of the drill body, the situation that a tool nose is broken due to large cutting resistance is effectively prevented, and fine bone chips generated during drilling are discharged through vacuum chip suction.

The invention discloses an autogenous bone taking instrument which comprises a bone taking device, a positioner and a positioning channel, and the bone taking device has various forms. The trephine bone extractor is mainly used for obtaining complete bone blocks; after the spiral bone fetcher is positioned, the spiral structure drives the cut bone blocks to enter the storage cavity; the ring cutting bone taking device can be used for completely cutting bone blocks; the spiral lifting bone taking device can store broken bone blocks in a centralized mode through a spiral structure. The bone taking bin is composed of a bin body and a bin cover, and bone scraps are cut through an incomplete circular groove. The bone scraper scrapes broken bones in the bone taking channel through the sharp cutting edge at the front end, and the broken bones can be taken out through the storage cavity. Three fixing needles are arranged on the edge of the positioner to facilitate intraoperative positioning, and a bone taking hole is formed in the middle and used for positioning the intraoperative bone taking device. The positioning channel is of an oval exposed structure and has two forms. The autologous bone extractor is high in bone extraction efficiency and operation precision, and the operation effect and the postoperative recovery effect of a patient can be effectively optimized.

The invention discloses a bone scrap retention prevention operation drill bit, and belongs to the technical field of medical instruments, the bone scrap retention prevention operation drill bit comprises a hollow drill bit, a plurality of bone scrap collecting ports are formed in the bottom end of the drill bit in the circumferential direction at equal intervals, a micro spiral conveying shaft is arranged in the drill bit, and a follow-up driving mechanism is assembled between the bottom end of the micro spiral conveying shaft and the drill bit; a plurality of bone chip collecting openings are formed in the bottom end of a drill bit in the circumferential direction at equal intervals, a miniature spiral conveying shaft is arranged in the drill bit, a follow-up driving mechanism is assembled between the miniature spiral conveying shaft and the drill bit, a connecting rod is arranged at the top end of the miniature spiral conveying shaft, and a bone chip collecting box is rotationally arranged on the outer side wall of the miniature spiral conveying shaft; the miniature spiral conveying shaft and the drill bit are driven to rotate, the rotating drill bit cuts bones to form bone holes, bone scraps generated in the cutting process enter the drill bit through the multiple bone scrap collecting openings and are conveyed into the bone scrap collecting box through the rotating miniature spiral conveying shaft, and bone scrap retention can be prevented.

A drill bit having roughness areas in a flute to reduce debris clogging in the flute during drilling, reduce temperatures of the drill bit and material being drilled, and lubricate the drill bit during drilling among other features. The drill bit is useful to drill in many unique materials including mammalian bone to reduce or eliminate bone chips occluding the flute. The roughness areas evacuate the bone chips quickly and efficiently and generate a low temperature of the drill bit and drilled material.

The present application relates to the technical field of oral tools, and discloses an oral implant angle fitting, adjusting, installing tool, which comprises a universal implant mobile phone and a mobile head, a washing assembly is arranged on the outer side of the universal implant mobile phone, and an air curtain assembly is arranged on the outer side of the universal implant mobile phone; a protection assembly is arranged on the outer side of the universal implant mobile phone; the washing assembly comprises a first fixed plate, the first fixed plate is fixedly connected to the outer surface of the mobile head, a plurality of liquid outlet heads are arranged in a circumferential array on one side of the outer surface of the first fixed plate, the liquid outlet heads are all arranged obliquely, and the liquid outlet heads are obliquely directed towards the position of the drill bit of the mobile head; the present application aims to solve the problem that, when performing surgery on the elderly, bone chips generated by drilling are accumulated in the deep part of the cavity, which not only causes the drill needle to jam and deviate, the implant path to deviate from the preset angle, but also hinders the observation of the bone wall morphology and anatomical structure by the operator, and increases the risk of bone wall penetration and nerve and blood vessel injury.

The application discloses a craniotomy drill, which comprises a supporting and positioning assembly, a driving component, a drill bit and a control component; a limiting rod is arranged on a frame; a driving machine one is in sliding connection with the limiting rod, and a telescopic end of an electric telescopic piece is connected with the driving machine one; the drill bit is connected with an output rotating shaft of the driving machine one; an opening is arranged on a side wall of the drill bit, and a flexible push piece is embedded in the opening; a detection end of a torque sensor is connected with the output rotating shaft, and the driving machine one, the electric telescopic piece and the torque sensor are electrically connected with a controller. The limiting rod can abut against a skull, so that the drill bit cannot be dislocated; before the limiting rod abuts against the skull, the drill bit is precisely positioned by using a positioning rod; after the drill bit is positioned, the drill bit can be fed at a certain speed; when the drill bit is about to drill through the skull, the driving machine one and a driving machine two can immediately stop rotating; bone scraps on the outside of the drill bit can be pushed by the flexible push piece to a region far from the opening position, so that the bone scraps cannot fall into the skull.

The utility model relates to the technical field of medical instruments, in particular to a medical hollow drill bit. Comprising a rod body, a drill body and a handle part, a through hole is formed in the rod body, the drill body and the handle part are connected to the two ends of the rod body respectively, side edges and end edges which extend spirally are arranged on the drill body, the side edges are spirally arranged in the axial direction, the end edges are located at the far end of the drill body and arrayed in the circumferential direction, cutting grooves are formed between the side edges, chip containing grooves are formed between the end edges, and the side edges and the end edges are communicated; by means of the design, bone scraps are discharged through the cutting groove and the through hole, cooling liquid can be injected into the through hole during operation, friction heat is taken away, scrap accumulation is prevented, bone tissue thermal damage is reduced, and operation safety and efficiency are improved.

The invention relates to the technical field of spine minimally invasive surgeries, in particular to a depth-limiting adjustable spine endoscope visible trephine which comprises a trephine end rod, a limiting sleeve is slidably connected to the outer portion of a guide lead screw, a meshing rack layer is arranged on the outer side of the trephine end rod, a locking piece is movably installed on the outer side of the limiting sleeve, and a locking piece is movably installed on the outer side of the locking piece. The inner side of the pipe groove base is rotationally connected with a threaded lead screw, and the outer side of the threaded lead screw is in threaded connection with an endoscope set. According to the depth-limited adjustable spinal endoscope visual trephine, the limiting sleeve is driven by the meshing gear to move axially, and the insertion depth can be accurately preset; the locking screw and the gear inner thread layer are locked and fixed, the lowering depth of the endoscope can be adjusted through the thread lead screw, the cold light source light supplementing lamp and the high-definition CMOS sensor are matched, the cutting progress, the trephine position and the peripheral nerve state are fed back in real time, and directional collection of bone scraps is achieved by designing the material collecting gap between the trephine end rod and the through pipe and the annular material collecting box.

The invention discloses a pedicle screw and a pedicle screw kit. Wherein the pedicle screw body is provided with a first channel, a plurality of second channels and liquid guide pieces arranged in the second channels, and the first channel penetrates through the head and the tail of the pedicle screw. The first end of the second channel is communicated with the first channel, the second end of the second channel extends to the side wall of the pedicle screw, and the liquid guide part protrudes out of the surface of the side wall of the pedicle screw. And the second channel is configured to allow external substances to enter from the second end and be in contact with the liquid guide piece. And the liquid guide piece is configured to be capable of absorbing liquid in the first channel and conducting the liquid to the side wall of the pedicle screw. According to the pedicle screw, bone scraps can enter the pedicle screw conveniently through the arrangement of the second channel, the liquid guide piece is arranged in the second channel, the growth direction of the bone in the pedicle screw is guided, and the pedicle screw and the bone are stably anchored.

Apparatuses and methods for a flexible obturator for use with an access assembly of an intraosseous device are disclosed. The flexible obturator can include elastic properties and a relatively low column strength, a relatively low shear strength, and / or a relatively high compression strength. The obturator can prevent bone chips and tissue from obstructing the needle lumen when the obturator is supported in the needle. When removed from the needle, the obturator can deform under force to prevent accidental needle sticks. The flexible obturator can define a radially symmetric profile and can conform to the interior profile of the needle lumen. The flexible obturator can extend beyond the distal tip of the needle and be trimmed to be flush with the bevel of the needle. This simplifies the manufacturing process, allowing a single size of obturator to fit multiple sizes of needles.

The application discloses a pedicle screw and a pedicle screw kit. The pedicle screw body is provided with a first channel, a plurality of second channels and a liquid guide arranged in the second channel. The first channel penetrates the head and tail of the pedicle screw. The first end of the second channel is in communication with the first channel, and the second end of the second channel extends to the side wall of the pedicle screw. The liquid guide protrudes from the surface of the side wall of the pedicle screw. The second channel is configured to allow external substances to enter from the second end and contact the liquid guide. The liquid guide is configured to absorb the liquid in the first channel and conduct the liquid to the side wall of the pedicle screw. The second channel is arranged to facilitate the entry of bone chips. The liquid guide is arranged in the second channel to guide the growth direction of the bone in the pedicle screw, so that the pedicle screw and the bone are stably anchored.

The invention relates to the technical field of medical instruments, and discloses a reaming lavage suction bone grafting device which comprises a handheld power operation body, a reaming drill rod connected to the output end of the handheld power operation body, an auxiliary grip arranged on the reaming drill rod in a sleeving mode and a collecting mechanism. The collecting mechanism is used for collecting bone scraps generated in the marrow expanding process and comprises an outer shell, a sealing cover detachably installed at the top of the outer shell, a filter cartridge installed in the outer shell and an inner collector arranged in the filter cartridge, and the sealing cover is connected with a liquid outlet pipeline of the auxiliary grip; the inner collector comprises a top cap positioned at the top of the filter cartridge and a collecting bottom plate arranged at the bottom of the filter cartridge. The elastic reset piece is arranged on the top cap of the inner collector, so that the inner collector is automatically ejected out of the outer shell when the sealing cover is taken down after an operation is completed, the bone chip collecting unit can be conveniently, hygienically and integrally taken and placed, and the problems that a tool is needed for taking out bone chips and the bone chips are prone to scattering in a traditional device are solved.

The utility model relates to a low heat accurate reduction bone needle, its main body structure comprises a needle tip part, a needle body and a needle tail part, the needle tip part is provided with a three-blade structure, each blade part is provided with a front knife face, a cutting edge, a first rear knife face and a second rear knife face, a lengthened spiral groove structure is arranged between every two blade parts, the needle body is marked with scale marks, and the needle tail part is provided with a first spiral groove and a second spiral groove. One end of the needle body is connected with the needle tip part, and the other end of the needle body is connected with the needle tail part. Due to the design of the lengthened spiral groove, bone scraps can be completely removed, heat is effectively reduced, and secondary damage caused by too much bone scraps and too high heat is avoided; the scale line design of the needle body assists a doctor in accurately determining the using length and accurately controlling the bone drilling depth in the operation process, and the bone drilling needle has the advantages of being low in heat, high in efficiency, accurate in positioning, accurate in resetting, convenient to operate, capable of preventing osteonecrosis caused by high temperature, avoiding secondary damage to bones caused by the phenomena such as blade breaking and the like and the like.

The invention relates to the technical field of medical instruments, in particular to a bone scrap retention prevention operation drill bit which comprises a hollow drill bit body, a plurality of bone scrap collecting openings are formed in the bottom end of the drill bit body at equal intervals in the circumferential direction, a miniature spiral conveying shaft is arranged in the drill bit body, and a follow-up driving mechanism is assembled between the bottom end of the miniature spiral conveying shaft and the drill bit body. The top end of the drill bit is rotatably connected with a bone scrap collecting box through a bearing, the bottom end of the bone scrap collecting box is fixedly connected with a cleaning port with a valve, the top end of the bone scrap collecting box is provided with a communicating port, and the top end of the connecting rod penetrates through the communicating port and extends to the outside. According to the drilling device, accumulation of bone scraps on the drill bit can be reduced, and the drilling effect is guaranteed.