96 results about "Intervertebral foramen" patented technology

The present invention provides an articulating TLIF inserter device operable for placing, positioning, and inserting a spinal implant into an intervertebral space with minimum tissue disruption and maximum inline impaction forces, including: an elongate shaft having a proximal end, a distal end, and an axis; an ergonomic handle disposed at the proximal end of the elongate shaft; an articulating joint mechanism disposed at the distal end of the elongate shaft; and an inserter piece coupled to the articulating joint mechanism, wherein the inserter piece is operable for selectively retaining the spinal implant, and wherein the articulating joint mechanism is operable for selectively actuating the inserter piece between one or more substantially off-axis configurations and a substantially on-axis configuration with respect to the elongate shaft. The articulating TLIF inserter device also includes a release mechanism disposed one of at and near the ergonomic handle, wherein the release mechanism is coupled to and operable for selectively actuating the articulating joint mechanism.

Described herein are method, systems and devices for measuring the region adjacent to or around a nerve root, such as the space within an intervertebral foramen before, during and/or after a spinal decompression procedure. Measurement devices may be advanced by pulling on them using a guidewire passing through the intervertebral foramen and out of the subject. The measurement device may include sounds for determining one or more dimensions of the space around a nerve root within an intervertebral space, lateral recess or central canal. Various embodiments of sounds, including calibrated, inflatable, expandable, moldable, and tapered sounds (or combinations of these) are described.

An implant of the intersomatic cage type, for fusion of vertebral bodies by a transforaminal approach, is disclosed that comprises a body with a curved profile that is designed to be implanted between the vertebral plates of two adjacent vertebrae. According to the invention, said body of curved profile comprises a posterior maneuvering part and an anterior attack part, said anterior attack part being composed of a lower tongue and of an upper tongue that are designed to receive between them a spacer element that can slide between a position of introduction, in which it is situated near said posterior maneuvering part, and a spacing position, in which it is situated near the end of said anterior attack part, thus increasing the thickness of the latter by spreading the tongues apart, said spacer element comprising a receiving seat that is open at the top and bottom.

The invention relates to a lumbar vertebra posterior approach fusion device. The fusion device comprises a cuboid device body and a developing needle located on the device body. The device body is composed of a device body front end, a device body tail end, a device body upper surface, a device body lower surface, a device body left side wall and a device body right side wall. The device body is hollow inside and forms a device body inner cavity, thread through holes are formed in the device body tail end, and bone grafting windows are formed in the device body left side wall and the device body right side wall respectively and communicated with the device body inner cavity; the developing needle is exposed out of the device body upper surface and communicated with the device body lower surface. The lumbar vertebra posterior approach fusion device has the advantages of being suitable in self size, peripheral wall thickness and terminal plate contact area, fits the human body physiological structure, can be filled with enough sclerotin, has a good supporting function, further can ensure bone ingrowth, is convenient to implant and can meet two operation modes of lumbar vertebra posterior approach and lumbar vertebra posterior approach through intervertebral foramina.

The invention discloses an intervertebral foramen puncture outfit. The intervertebral foramen puncture outfit comprises a puncture needle, a telescopic arm and a guide needle, puncture in three-dimensional space is changed into puncture in a sagittal plane at the outer side of an intervertebral foramen, the intervertebral foramen can be positioned fast and accurately, and the puncture needle can be guided fast and accurately. The intervertebral foramen puncture outfit has the advantages of small trauma, low cost, convenient use and the like, can reduce the number of X-ray examination times, shorten operative time, relieve the pain of a patient, and ensure safe and reliable operation, and is simple in structure, easy to assemble and disassemble, convenient to carry, economical, practical and suitable for final application and popularization.

The invention discloses an intervertebral foramen puncture guide device which comprises a vertical positioning device, a horizontal adjusting device and an angle adjusting device, wherein the vertical positioning device is connected with the horizontal adjusting device by a longitudinal-transverse rod connector; the angle adjusting device is connected with the horizontal adjusting device; an intervertebral foramen puncture sleeve is fixed on the angle adjusting device; and an intervertebral foramen puncture needle penetrates in the intervertebral foramen puncture sleeve. In the invention, based on the principle that two points define a straight line and through the guide of a zygopophysis puncture needle and the intervertebral foramen puncture needle sleeve, accurate intervertebral foramen puncture can be realized conveniently, accurately and quickly; only a little and simple X perspective is needed during the operation, and thus the ray exposure of the medical personnel and patients is reduced; and due to the guide of the zygopophysis puncture needle, the puncture blindness is avoided, the risk of vascular nerve tissue damage is reduced, the puncture accuracy and safety are guaranteed, the operation time is shortened, the device is easy to learn and understand, the learning period is shortened, and the efficiency is improved.

The invention discloses a puncturing positioning device of operation of intervertebral foramen of lumbar vertebra and a using method thereof, and belongs to the field of medical instruments. The operation puncturing positioning device comprises an operation bed fixing clamp, an upright column which is perpendicular to a bed surface is connected with the fixing clamp, the end of a cross bar is slidably connected with the upright column, the other end of the cross bar is a rotary shaft, an adjusting rotary tube is rotatably connected with the rotary shaft, a positioning tube which is perpendicular to the axial center of the rotary shaft is arranged on the side, close the end, of the adjusting rotary tube, a positioning needle is arranged in the positioning tube, a horizontal length measuringbar and a tilting length measuring bar are arranged on a rotary shaft and an adjusting rotary tube which are located on the side of the positioning tube, arc-shaped long holes which are formed in therotary direction are formed in the outer circumference of the adjusting rotary tube, and the arc-shaped long holes move along the horizontal length measuring bar when the adjusting rotary tube is rotated. By means of the puncturing positioning device, the puncturing direction and angle can be accurately positioned, the operation time can be shortened, the smooth processing of the operation is ensured, the pain of a patient is relieved, and the overstrain of a doctor is reduced.

The invention discloses a spinal intervertebral foramen surgery model. The model comprises an artificial spine composed of multiple segments of artificial vertebral bones,an artificial intervertebraldisc located between every two adjacent artificial vertebral bones,an intervertebral disc protrusion simulated object bonded to each artificial intervertebral disc and artificial tissue wrapped on theexterior of the artificial spine; the intervertebral disc protrusion simulated objects are made of viscose fibers and bonded to arbitrary positions of the corresponding artificial intervertebral discs. The intervertebral disc protrusion simulated objects made of the viscose fibers can be glued to appropriate positions outside the corresponding intervertebral discs to simulate different types of intervertebral disc protrusions,and the shape and size of the intervertebral disc protrusion simulated objects can be adjusted according to needs to be better in line with the real state of the human body. Compared with a traditional mode of using corpses or non-dedicated models for training,the model has the advantages that the cost of training doctors can be greatly reduced,the repeatability is excellent,surgical modes are diversified,and the training period can be shortened.

The invention discloses an intervertebral foramen mirror which comprises a main structure and a working mirror tube connected with one end of the main structure. An instrument passage penetrating two ends of the intervertebral foramen mirror is arranged on the working mirror tube and the main structure, and an opening is formed in the side wall of the instrument passage. An operating instrument inserting mode is added, and a knife head portion for cutting tissue can be made in larger size, so that working efficiency and strength of an operating instrument are improved, operating operation is enabled to be simpler and more efficient, and the operating instrument is durable.

The invention provides an interbody fusion cage and an implantation device thereof. The interbody fusion cage is implanted between two adjacent vertebrae of a vertebral column to replace an intervertebral disc issue in degeneration and protrusion so as to recover and keep a normal vertebral clearance height. The interbody fusion cage is characterized by comprising a supporting component and a limiting part, the supporting component is used for supporting the vertebrae, and the limiting part is connected with the supporting component and used for limiting the supporting component; the supporting component is formed by matching a first implantation member with a second implantation member, and the limiting part limits longitudinal and bilateral relative displacement between the first implantation member and the second implantation member after matching is finished. By adoption of a design that the first implantation member and the second implantation member are combined to form a whole implant, thicker interbody fusion cages can be implanted by the aid of an existing 8mm intervertebral foramen endoscope without use of intervertebral foramen endoscopes with larger diameters, and accordingly injuries to patients are reduced.

The invention discloses a vertebral arch pedicle extension device, which comprises a front nail, a core bar, a rear nail and a fixer. The core bar has a hollow structure, wherein the middle part of the core bar is provided with a through hole, the front end of the core bar is connected with the front nail by screw thread, the rear end of the core bar is sleeved with the rear nail, and the core bar is glidingly connected with the rear nail; the fixer is fixedly connected at the rear end of the rear nail and enables the core bar and the rear nail to be fixed oppositely. The vertebral arch pedicle extension device can separate a centrum from a vertebral arch pedicle and extend the distance therebetween, finally achieve the aims of expanding a vertebral canal and an intervertebral foramina and reducing pressure, can be applied to surgical operation on stenosis of the lumbar spine and has good application prospect.

The invention discloses a minimally invasive surgical instrument for treating spinal canal stenosis. The instrument comprises a casing pipe and a piezosurgery. The front end of the casing pipe is provided with a long main body, and the rear end is the insertion port of the piezosurgery. The side surface of the rear end of the long main body is provided with access ports, used to access a wash pipe, a water absorption pipe, an endoscope conduit, and a lamp line pipe. The casing pipe is placed into a position of spinal aperture or an intervertebral foramen through a minimally invasive method. The piezosurgery is guided by a channel in the casing pipe to perform bone gridding or bone cutting. Since the space limitation of the casing pipe, damages on nerves by mistake when the piezosurgery is operated can be prevented. The wash pipe, the water absorption pipe, the endoscope conduit, and the lamp line pipe are guided by the casing pipe, preventing wound caused by passing into a body. When the wash pipe performs washing, the piezosurgery is cooled down. The minimally invasive surgical instrument changes an open method for treating spinal canal stenosis by a conventional instrument, and a minimally invasive surgical method is used to treat spinal canal stenosis, so as to satisfy requirements of surgical operation on accuracy and security.

The invention relates to medical instruments, and discloses an intervertebral foramen mirror puncturing system. The intervertebral foramen mirror puncturing system comprises a one-level cannula, a two-level cannula, an opening awl, an anchor needle and a ring saw. The awl head of the opening awl is provided with a protection shoulder, the head end of the anchor needle is provided with a self-tapping thread and is blunt, the blunt head of the anchor needle is designed not to cause hurt easily when penetrating through the zygopophysis to be close to the nerve, and the bone way can be adjusted more easily and conveniently through the self-tapping thread of the head end of the anchor needle. The ring saw is used for cutting the zygopophysis from the side face by the angle by which the anchor needle enters the canalis vertebralis to expand the bone way until the diameter of the bone way is enough for an endoscope to be placed. By means of the intervertebral foramen mirror puncturing system, the puncturing process of the lumbar vertebra intervertebral foramen mirror operation is obviously simplified, operation is reliable and practical, the operation safety and the operation successful rate are improved, and the parts, exposed to the radiation, of an operator and a patient are greatly reduced.

The invention discloses a spinal implant structure body and suites thereof, wherein the spinal implant suites comprises a spinal implant structure body and an operation tool. The spinal implant structure body comprises a hollow body; the hollow body has a front wall, a back wall, and a separating wall set inside the hollow body; one end of the hollow body is provided with a recess and a long through hole, and the recess has a curved surface; at least one inserting groove is set in the hollow body; the at least one inserting groove is set on the surface of the one end of the recess in the hollow body, and is set around the recess. The operation tool is designed particularly to match the structure of the spinal implant structure body. The structure of the spinal implant suites is configured to help vertebral foramen approach arthrodesis, and improve operation efficiency.

The invention discloses a double-channel working cannula. The double-channel working cannula comprises a cannula body, an interlayer and a handle; the cannula body is of a hollow tubular structure; aninlet and an outlet are respectively formed in the two ends of the cannula body; the outer diameter of the cannula body is gradually reduced from the end, close to the inlet, of the cannula body to the end, close to the outlet, of the cannula body; the interlayer is arranged in the cannula body in the length direction of the cannula body; the handle is fixedly installed at the end, close to the inlet, of the cannula body; the interior of the cannula body is divided into a working channel and an endoscope channel through the interlayer; the working channel is arranged above the endoscope channel; the working channel is used for containing surgical instruments; and the endoscope channel is used for containing an intervertebral foramen endoscope. According to the application of the double-channel working cannula in the invention, extra damage to a patient in the placing process is reduced; the safety is improved; whole-course visual penetration of an interbody fusion cage is realized; the operation is relatively simple, convenient and flexible; the operation difficulty is reduced; the unnecessary use of an expandable vertebral body fusion cage is reduced; and the success rate of thespinal operation is improved.

The invention discloses an intervertebral disc annulus fibrosis suture device, comprising a first outer needle and a second outer needle, wherein the first outer needle and the second outer needle arehollow, and holes are arranged on opposite side walls of the first outer needle and the second outer needle. The first outer needle is internally provided with a hose for driving the hose to protrudeout of the hole and bend into the hole of the second outer needle, and a wire guide frame arranged in the hose and connected with a suture at the end is used for driving the second driving mechanismof the wire guide frame to move along the inner wall of the hose. The second outer needle is internally provided with a thread tracing needle and a third driving mechanism, the thread tracing needle is provided with a clamping groove for clamping with the wire guide frame at a position corresponding to the missing hole, and the third driving mechanism is used for driving the thread tracing needleto move along the axial direction. The invention can conveniently and easily realize the suture of the rupture of the intervertebral disc fibrous annulus in the intervertebral foramen microscope, improve the operation convenience and reduce the demand for the operation space. A method for suture an annulus fibrosus of an intervertebral disc is also disclosed, that beneficial effect of which are described above.

The invention relates to a depth-limit tooth-shaped bone cutter with a graduated sleeve for the articular process and a working method of the depth-limit tooth-shaped bone cutter, and belongs to the field of medical instruments. The bone cutter comprises a positioning needle in a straight round rod shape, the bottom of the positioning needle is sharp, the bone cutter comprises an expanding tube ina tube shape, the lower end of the expanding tube is in an inverted-cone body shape, the positioning needle is matched in the expanding tube, the bone cutter comprises a sleeve, the sleeve is a thin-wall cylinder, the inner diameter of the sleeve is matched with the outer diameter of the expanding tube, and an intervertebral foramen endoscope technology endoscope channel is rapidly and safely established. In this way, operation is performed on the diseased intervertebral disc and hyperplasia osteophyte conveniently under an intervertebral foramen endoscope, the articular process can be rapidly and conveniently cut in an operation, and injuries to nerve roots and duramater spinalis in the operation are avoided or reduced.

The invention discloses an intervertebral foramen microscopic puncture positioner, including a main arm, wherein the top of the main arm is sleeved with a first sleeve, and a fixing bolt is arranged at the bottom of the main arm, the outer wall of the first sleeve is provided with a quickening bolt, and one side of the first sleeve is provided with an auxiliary arm, the outer sleeve of the auxiliary arm is provided with a slide pipe, the bottom of the slide pipe is provided with a beam frame, the inside of the beam frame is provided with a sliding groove, the sliding block is arranged inside the sliding groove, the bottom of the slider is provided with a support pipe, the outer sleeve of the support pipe is provided with a second sleeve, a beam frame is arranged, Chute and slider, a support pipe is fixedly connected with the slider, Then the slider is pushed to make the slider move along the sliding groove inside the beam frame, and the instrument on the supporting tube moves along with the slider, so that the hole mirror puncture can be quickly carried out between different vertebrae of the patient, thereby solving the problem that the position of the hole mirror puncture needle is difficult to be adjusted by the traditional device, and the puncture time is prolonged.

The invention relates to an instrument for transforaminal endoscopic fusion surgery and a using method of the instrument, and relates to the field of medical instruments. The instrument for the transforaminal endoscopic fusion surgery comprises an operating rod and a tool bit fixedly connected to one end of the operating rod and used for treating an intervertebral disc; and the operating rod is ina hollow cylinder shape, and an transforaminal endoscope can extend into the operating rod so as to observe the degree of the tool bit for treating the intervertebral disc. The instrument has the effects that the sight of a doctor is not blocked in an operation, meanwhile, the operation efficiency can be improved, and the operation time is shortened.