44 results about "Surgery.trauma" patented technology

Stimulation of neural activity in a nerve supplying the spleen, wherein the nerve is adjacent to the splenic artery at a position where the splenic artery is not in direct contact with the pancreas, can modulate pro- and anti-inflammatory molecules levels, thereby reducing inflammation and providing ways of treating disorders, such as disorders associated with inflammation. The invention provides improved ways of reducing inflammation with minimized off-target effects, in particular surgical trauma.

The invention discloses a ring contraction device and a mounting method thereof, and relates to the field of medical instruments. The ring contraction device comprises a plugging piece, a hemostatic disc, a puncture tube and a push rod; one end of the push rod penetrates through an inner cavity of the puncture tube and extends to the outside of the inner cavity of the puncture tube; the push rod is used for pushing out the plugging piece in the puncture tube to be propped open; and the hemostatic disc is further arranged at a pull wire to be connected with the plugging piece, and the distancebetween the plugging piece and the hemostatic disc can be effectively adjusted through the pull wire, and therefore the ring contraction effect is achieved. The ring contraction device is reasonable in structure; by means of the flexible design of the blocking piece, operative wounds are small, tissue recovery is fast, and the purpose of treating reflux is achieved; and the pull wire is made of high polymer materials, the surface is smooth, the minimally invasive purpose can be achieved, instruments are relatively small, smooth round tubes are adopted for conveying, the path is relatively simple, an operation is easy to operate, and production, research and development are easy to achieve, and therefore, the operation cost is reduced.

The invention discloses a temporomandibular joint separation cap and a fixing method thereof, which is composed of a separation cap head and a fixing handle; the fixing handle is arranged at the lower part of the separation cap head and connected with the separation cap head, and the separation cap head opens downward The spherical groove structure or the elliptical spherical groove structure are uniformly provided with 1 to 6 screw fixing holes on the fixing handle. The invention can effectively separate the temporal muscle joint fossa from the mandibular joint without amputating the mandibular joint head and mandibular bone tissue, has small surgical trauma, and is convenient for postoperative rehabilitation of patients. Since the thickness of the temporomandibular joint separation in the present invention is only 0.1 mm to 0.6 mm, it can effectively reduce the patient's discomfort, improve the stability of the occlusal relationship, overcome the need for permanent implantation of the temporomandibular joint in the prior art, and replace the original The condition of bone tissue. After the temporomandibular joint ankylosis is cured, it may be considered to remove the temporomandibular joint separation cap of the present invention, so as to effectively avoid permanent damage to the patient.

The invention relates to a shearing system and a myocardial anchoring device. The shearing system is used for cutting medical wires used in surgery. The shearing system includes a housing, a knife and a driving assembly. The housing has a proximal end and a distal end opposite to the proximal end. The shell is formed with a hollow cavity at the far end, and the shell is provided with a through hole communicating with the hollow cavity in the axial direction, and the through hole is used for passing through the medical wire; the cutter can be movably arranged in the hollow cavity, And the movement track of the cutter in the hollow cavity intersects the axis of the through hole; the driving assembly is arranged at the proximal end of the housing and is used to drive the cutter to move in the hollow cavity, so that the cutter cuts the medical wire passing through the through hole. Since the knife is always in the hollow cavity of the casing during the whole cutting operation, the tissue damage due to the exposure of the knife can be avoided, and the structure of the cutting system is relatively compact, which effectively reduces surgical trauma and reduces surgical risks.

A trephine having a limiting sleeve (100), comprising a motor (200), an internal trephine, and at least one trephine sleeve (110); the trephine sleeve (110) is in rigid connection with a motor housing (208); the internal trephine is nested in the trephine sleeve (110) by means of at least two bearings (108, 112) and is driven, by means of the motor (200), to rotate; the internal trephine comprises a trephine drill bit (102), a connecting rod shaft (104), a coupling A (106), and a coupling pin (107); the trephine drill bit (102) is provided at one end of the connecting rod shaft (104), trephine sawteeth (130) are provided at the front end of the trephine drill bit (102), the trephine sawteeth (130) can extend out of the front end face (126) of the trephine sleeve for a certain distance, and the other end of the connecting rod shaft (104) is connected to a motor rotating shaft (206) by means of the coupling A (106) and the coupling pin (107). The external trephine sleeve (110) defines and adjusts the cutting depth (122a) of the internal trephine, while protecting a surgery operator and the tissue around a surgical site from being injured by a trephine rotating at a high speed; moreover, by drilling using the trephine having a limiting sleeve (100), a bone flap can be completely removed and retrieved from a trephined bone. The present invention realizes standardization and repetition of cranial defect (502) and drilling surgery, and makes the surgery simple, easy to operate, safe and reliable, efficient, and is less traumatic.