32 results about "Posterior surgery" patented technology

A prosthetic intervertebral disc is formed of first and second end plates sized and shaped to fit within an intervertebral space and to be implanted from the back of the patient, thereby decreasing the invasiveness of the procedure. The posterior approach provides for a smaller posterior surgical incision and avoids important blood vessels located anterior to the spine particularly for lumbar disc replacements. The first and second plates are each formed of first, second and third parts are arranged in a first configuration in which the parts are axially aligned to form a low profile device appropriate for insertion through the small opening available in the TLIF or PLIF approaches described above. The three parts of both of the plates rotate and translate with respect to one another in situ to a second configuration or a deployed configuration in which the parts are axially unaligned with each other to provide a maximum coverage of the vertebral end plates for a minimum of insertion profile. Upon deployment of the disc, a height of the disc is increased.

Methods and devices described herein facilitate diaphragm entry for posterior access of body organs.

Methods and devices described herein facilitate diaphragm entry for posterior access of body organs.

Methods and devices described herein facilitate improved treatment of body organs.

A support for vertebral fusion prevents subsidence and eliminates the need for posterior surgery and instrumentation. The support is constructed from cadaveric vertebrae or an implantable man-made material. One embodiment is a U-shaped metal support that rests on the apophyseal ring of the vertebrae, with the open portion of the U facing the patient's posterior. The metal support is then connected to a previously placed threaded cage or bone dowel such as that used in anterior lumbar interbody fusion (ALIF).

A support for vertebral fusion prevents subsidence and eliminates the need for posterior surgery and instrumentation. The support is constructed of an implantable man-made material. One embodiment is generally a U-shaped metal support that rests on the apophyseal ring of a patient's vertebrae, with the open portion of the U facing the patient's posterior. The metal support is connected to a previously placed threaded cage or bone dowel such as that used in anterior lumbar interbody fusion (ALIF). The U-shaped support is preferably comprised of a trabecular metal such as tantalum.

A method of performing vertebral facet fusion by lateral approach and related devices. The lateral approach to facet fusion involves identifying the lateral mass and introducing any of the fixation methods known or described herein laterally at one or more facets through the use of a Kirschner wire guide, a cannulated bone drill and cooperatively cannulated staple guide. A surgical bone staple have a perforated bridge is used across the lateral facet joint where fixation is required. Where fusion is desired, a bone screw have lateral perforations of the shank is inserted through the cannulated staple guide and bridge perforation at the joint to promote fusion. A staple cap and graft container for overlay grafting may be utilized for additional fusion. The method involves less surgical time, reduced blood loss and discomfort for the patient as compared to the posterior approach.

The invention relates to a spinal surgery bracket device for neurosurgery, and belongs to the technical field of medical apparatuses. The spinal surgery bracket device for the neurosurgery comprises a spinal surgery bracket device body, a bracket sliding device and a bracket hand rocking device, wherein a detection bed is arranged on the spinal surgery bracket device body and is provided with a bracket fixing port; the interior of the bracket fixing port is connected with a vertical bracket; the left side of the vertical bracket is connected with an oblique support pipe; the upper side of the vertical bracket is connected with a spine support cushion; the bracket sliding device is arranged at the right side of the bracket fixing port, and the left and right sides of the bracket sliding device are connected with a bracket bolt port; a bolt knob is arranged on the support cushion bolt port. The spinal surgery bracket device has the advantages that the complete functions are realized, and the convenience in use is realized; when the spinal posterior surgery is performed on a patient of neurosurgery, the time is saved, the labor intensity is decreased, the scientificity and rapidity are realized, the safety is realized, the efficiency is high, and the working difficulty of medical staff is greatly decreased.

The invention relates to a vertebral plate opener for solving the problems that in the case of pushing a open-door side to open a vertebral plate in cervical posterior surgery, rongeurs are inconvenient to use, difficult to operate and poor in effect, and the vertebral plate is prone to rebound when being opened, resulting in dangerous accidents. A hook body is provided with a free end and a connection end, wherein the length of the free end of the hook body is smaller than that of the connection end, the top of the hook body is of a plane shape, the connection end of the hook body and a handle are connected to form a V shape, the opening of the V shape and that of the hook body are opposite in direction, and the handle and the free end of the hook body are arranged on two sides of the connection end of the hook body respectively. The vertebral plate opener is simple in structure, convenient to use, easy to operate, and capable of greatly increasing working efficiency. Further, the vertebral plate opener effectively solves the problem that the vertebral plate is prone to rebound when being opened, prevents medical incidents, and improves safety of operations.

The invention discloses a positioning guider for embedding a pedicle screw of a lower cervical spine. The positioning guider comprises a fixed positioning pin (1) and a sliding chute (2) which is hinged with the arm of the fixed positioning pin (1), wherein the sliding chute (2) is cambered; angular measurement scale marks (3) are uniformly formed on the inner side face of the sliding chute (2); a bushing hole (4) which penetrates through the side face of the sliding chute (2) is formed in the sliding chute (2); the central line of the bushing hole (4) directs at the center of circle of the sliding chute (2); and the distance O'O from the tip of the fixed positioning pin (1) to the center of circle of the sliding chute (2) is 1.0 to 3.5mm. The guider determines the direction and the position of the pedicle screw through the fixed positioning pin and the bushing hole on the sliding chute, has a simple structure and is convenient to operate, improves the accuracy and the safety for embedding the pedicle screw of the lower cervical spine in the posterior surgery, reduces the occurrence of related complicating diseases and is suitable to be popularized and applied in most of primary health organizations.

A surgical fastener for use in posterior surgeries that require fusion between the occiput and pelvis. Among other things, the surgical fastener includes a cutter for cutting bone or other tissue.

The present invention relates to a special head and face liner for plaster bed for cervical and upper thoracic posterior surgery. The eye window, the nose window and the mouth window are connected sequentially from top to bottom and arranged in the middle of the face cushion, the support pad is arranged in the lower rear part of the face cushion, and the head and face cushion is made of elastic material. The advantage is that compared with using a support frame to fix the patient's head, the head and face cushion can reduce the pressure on the patient's head and face; the head and face cushion is made of elastic material, which can be deformed according to the patient's face in addition to having a certain degree of support. , in line with ergonomic engineering; the use of head and face pads can effectively reduce the direct contact between the patient's face and the plaster bed under pressure, resulting in wounds such as ulceration and swelling, and improve patient comfort; the structure is simple and the production cost is relatively low, which is conducive to popularization and application ;Can be used once or reused after cleaning.

The invention discloses a cervical posterior approach self-locking strutting fixer, comprising a support plate A and a support plate B, wherein the tail end of the support plate A is an isosceles triangle, is provided with a barb, and is internally provided with a chute, the inner wall of the chute is provided with ratchet teeth, the tail end of the supporting plate B is an isosceles triangle, andis provided with a barb and ratchet teeth, the supporting plate B can be inserted into the chute of the supporting plate A, and the barbs can be matched with each other. This design is used for cervical posterior transforaminal approach, fully protecting a cervical posterior muscle spinous ligament complex, retaining important structures such as nuchal ligament, supraspinous ligament, interspinous ligament and ligamentum flavum. Cervical 3 to cervical 7 bilateral laminae are cut open by a piezosurgery, and then are fixed by the self-locking strutting fixer, thus maintaining the laminar liftedand refiguring a wider spinal canal, and closer to a cervical spine physiological structure after surgery, the reconstruction of the posterior neck structure is achieved in real sense, complicationsof a traditional cervical posterior approach surgery are reduced, the operation is simple in the surgery, and the efficiency and the safety of the surgery are improved.

A lumbar posterior surgery distraction device convenient to install and position comprises an operating bed, two horizontally-arranged arc-shaped rods are arranged above the operating bed, each arc-shaped rod is installed on the operating bed through a set of adjusting and locking devices, a first guide rail is installed on the bottom face of each arc-shaped rod, and a first sliding block with a locking function is arranged on the lower portion of each first guide rail; a retractor is installed at the lower end of the first sliding block, and two sets of positioning opening devices are arranged between the two arc-shaped rods and can move in the length direction of the arc-shaped rods to adjust the distance between the two arc-shaped rods. The mode that the retractor is matched with the vertebral sections of a patient is adopted, the two adjacent vertebral sections are slowly distracted, so that the vertebral section distracting effect is achieved, meanwhile, the two vertebral sections are distracted and fixed in the whole operation process through matching of the two positioning distracting devices and the adjusting locking device, the stability of vertebral section distracting is guaranteed, and meanwhile, distraction can be conducted more accurately, and manual fixing is not needed.

The invention discloses a carrying and fixing device for posterior approach operation. The carrying and fixing device comprises a back plate, a base plate and two vertical plates, wherein the two vertical plates are fixed to two opposite edges, extending in the length direction, of the base plate respectively, the two vertical plates and the base plate form a U-shaped frame, and the back plate isdetachably fixed to a U-shaped opening, opposite to the base plate, in the U-shaped frame; and a plurality of air cushions are fixedly connected to the portion, at the inner side of the U-shaped frame, of the base plate, and each air cushion comprises a head cap and a chest and abdomen cushion which are sequentially arranged in the length direction. The fixing device can clamp an anesthetized patient through the base plate and the back plate which are connected into a whole, the vertical plates, the head cap and the chest and abdomen cushion have a positioning effect on the patient, then the patient and the fixing device can be basically kept static relatively in the turnover process, meanwhile, the parts, in the length direction of the base plate, of the patient can be basically turned over synchronously, so that the patient can be turned over more conveniently, the time needed for body position adjustment operation again after the patient is turned over can be shortened, and the turn-over efficiency is effectively improved.

The invention discloses an exposure and distraction device for lumbar posterior surgery. The exposure and distraction device comprises a first end fixing piece, a universal connecting mechanism, a main drag hook and a second end fixing piece, wherein one end of the first end fixing piece is connected with one end of the universal connecting mechanism, the universal connecting mechanism is provided with two connecting ends, the head of each end can rotate in multiple planes and multiple angles, the main drag hook is directly or indirectly connected with the other end of the universal connecting mechanism side, the second end fixing piece is arranged at the tail end of the head of the main drag hook, the head end of the main drag hook is connected with the second end fixing piece, and the tail end of the main drag hook is connected with the first end fixing piece through a series of connectors, so that the main drag hook is stable and plays a distraction role.