589 results about "Retractor" patented technology

The invention discloses a joint dilator of an orthopedic knee arthroscope and a control method thereof, and relates to the technical field of medical instruments, the method comprises the following steps: acquiring a geometric center of a preset distraction range and a rotating fulcrum of the dilator, and constructing a preset Y axis according to the geometric center and the rotating fulcrum; when the spreader performs initial rotation by taking a preset Y axis as a rotation axis, the graph acquisition piece acquires an actual image contour in real time; comparing the actual image contour with the target image contour in real time; when the coincidence degree between the actual image contour and the target image contour is a second coincidence degree, the position of the preset Y axis is confirmed again according to the coincident contour between the actual image contour and the target image contour in the first coincidence degree, and an actual Y axis is set; the angle control device is combined with the actual Y axis to control the dilator, through the arrangement, it can be ensured that the dilated range of the dilator coincides with the range corresponding to the actual injury characteristic, and then the wound area of a patient is reduced.

A system for performing minimally invasive procedures in a body lumen of a patient including a flexible catheter having a first lumen configured and dimensioned to receive an endoscope therethrough and a second lumen configured and dimensioned to receive a first flexible tube therethrough. The first flexible tube is movable through the second lumen and has a distal portion including a first curve extending in a first direction with respect to the longitudinal axis and a second curve extending in a second different direction with respect to the longitudinal axis. A retractor system is positioned at a distal portion of the catheter and is movable from a non-expanded insertion position to an expanded position forming an expanded cage to form a larger working space. The distal portion of the first flexible tube is movable within the expanded cage.

The invention aims at providing a breast surgery retractor capable of avoiding skin scald, and relates to the field of medical surgical instruments, the breast surgery retractor comprises a fixing device, the fixing device comprises a first sliding rail, a supporting rod, a limiting stopper and a pressing plate, and the fixing device is used for adjusting the position and angle of the surgery retractor, so that the surgery retractor is more practical; the auxiliary device comprises a second sliding block, a second sliding rail, a third sliding rail and a first auxiliary drag hook assembly and assists the heat dissipation plate in traction, and the operation difficulty is reduced; the isolation device comprises a second auxiliary drag hook assembly, a traction rod, a shifting block, a sleeve, a connecting rod and a diaphragm, the skin can be isolated through the diaphragm, and the skin is prevented from being scalded due to heat conduction of metal. The problem that a metal drag hook easily scalds the skin is solved.

A method of performing an operation, e.g. a spinal operation, on a patient using a retractor comprising a pair of blade assemblies which are adapted to open about a set of axes that are not parallel to a third spatial axis, and further comprising a pair of arms, which are adapted to move the pair of blade assemblies apart from one another in the third spatial axis. In the method, the blade assemblies are closed to assume a low profile, inserted into a relatively small incision, and stretched apart from each other, thereby stretching the skin about the incision to form an aperture longer than the incision. The blade assemblies are then opened by rotating the blades about the set of axes, stretching the skin around the incision in a second direction that is substantially perpendicular to the first direction (i.e. the direction of the incision.)

Improved methods and devices for performing an endoscopic surgery including a system for performing minimally invasive procedures including a flexible catheter having a first lumen, a first flexible tube positioned in the first lumen, and a second flexible tube positioned in the first lumen. The first lumen defines a first space configured and dimensioned to receive an endoscope. The first flexible tube and second flexible tube are fixed at a proximal portion and configured to float within the first lumen of the catheter. First and second flexible guides are slidably positioned within the first and second flexible tubes and dimensioned to receive a first instrument for axial movement therein, the first and second flexible guides movable to an angled position with respect to a longitudinal axis. A working space expanding system positioned at a distal portion of the flexible catheter, the working space expanding system movable from a non-expanded insertion position to an expanded position forming an expanded region to expand the working space within the body lumen.

A retractor may include a proximal portion and a distal portion opposite the proximal portion. The distal portion may include first and second blade retractors each having a blade receptacle defined in a first end of a body. The blade receptacle has an opening that narrows to a seat for receiving a blade head, the seat defining a shape that reduces translation, rotation, and / or angulation of the blade head.

A surgical retractor comprising a blade having first and second opposing surfaces, and a handle extending from a proximal end of the blade, wherein the first surface of the blade includes a non-slip texture having a preferential grip in a first direction corresponding to direction of extraction of the surgical retractor from an incision and having a minimal or no grip in a second direction opposite to the first direction and in a third direction transverse to the first and second directions.

The invention discloses an anterior cervical tissue exposure device for a neck operation. The device comprises a base, a cushion bearing mechanism and two traction mechanisms. A pillow plate of the cushion bearing mechanism is of a protruding plate structure matched with the anatomical structure of the posterior approach of the human neck, and comfortable neck support can be provided for a patient in cooperation with a pillow. A second supporting rod of the traction mechanism vertically stretches out and draws back, a mounting base rotates, and the opening and closing mechanism can drive side drag hooks to slide face to face or back to back through cooperation of a gear and a rack and arrangement of a limiting pin so as to meet the traction requirements of notches of different sizes. A first clamping plate on the base is adjusted to ascend and descend through a first threaded rod and used for fixing the device on an operating bed, a cushion bearing seat slides on the base and is limited, and the position of a traction mechanism on the pillow plate can be adjusted through a second threaded rod and other structures. According to the invention, the neck of a patient can be stably supported, the traction mechanism can be conveniently adjusted to fully expose an operation area, the convenience and accuracy of operation can be improved, and the requirements of different patients and operation scenes can be met.

Oral surgery collaborative surgical field exposure assistance surgical robot and control method, comprising two 6-degree-of-freedom robotic arms, two force-sensing surgical retractor assemblies and a main control computer. The force-sensing surgical retractor assembly includes a force-sensing surgical retractor, and there is a contact sensor inside the end cover plate of the force-sensing surgical retractor. The force-sensing surgical retractor is connected to the end of the robotic arm through a surgical retractor connecting piece. There are drag mode interaction and reference force adjustment interaction on the main control computer. The present invention is used to assist doctors in continuously retracting the surgical incision. The doctor only needs to place the surgical retractor at the initial position of the target area, input the reference retraction force on the interaction interface, and turn on the control system. The robot drives the force-sensing surgical retractor to safely and stably retract the surgical incision. For the convenience of doctors' operation and to ensure human-machine safety, the present invention has designed control strategies such as detailed modeling analysis, torque compensation, active retraction compensation, and safety threshold for the surgical retraction process.

The invention relates to the technical field of blood collection, in particular to a blood collection device for medical examination, which comprises a blood collection tube preprocessing module, a tourniquet binding module arranged above a placement platform and used for carrying out tourniquet on a patient and a vein recognition and positioning module used for recognizing and positioning veins of the patient, a circulating rotation disinfection module used for being in contact with the arm of the patient is further arranged in the placement platform; the tourniquet is tightened through the tourniquet retracting and releasing device, the pressure sensor can detect the compression force on the arm of a patient, automatic adjustment is achieved, manual binding is not needed, too loose and too tight conditions are not prone to occurring, the binding quality is ensured, the vein recognition and positioning module can recognize the vein position below the arm epidermis, infrared positioning is adopted, and the positioning accuracy is improved. The blood collection tube pretreatment module can automatically shake a vacuum collection tube after blood drawing is completed, it is ensured that an anticoagulant is mixed with a blood sample, and the blood sample quality is ensured.

The utility model discloses an anatomical position retractor for carotid endarterectomy, which comprises two frames, the joint of the two frames is connected through two symmetrically arranged adjusting knobs, the outer surface of each frame is provided with a plurality of square clamping grooves, a first adjusting seat and a second adjusting seat are clamped in the plurality of square clamping grooves, and the first adjusting seat is connected with the second adjusting seat. Adjustable drag hooks are installed in the second adjusting seats, adjustable threaded rods are installed in the first adjusting seats, and claw-shaped muscle retractors are fixedly connected to the sides, close to the inner ring of the frame, of the threaded rods. By means of the structure, the frame part is provided with the clamping groove, and the hook can be installed according to the traction requirement of the surgical site; the position of the claw-shaped muscle retractor on the frame can be adjusted; a frame double-joint variable-angle design drag hook plays a role in tissue traction to expose an anatomical position in carotid endarterectomy.

The invention provides a distraction device and distraction equipment suitable for wedge high tibial osteotomy, and relates to the technical field of medical surgical instruments, the distraction device comprises a support, a first knife group, a second knife group and a first actuating part; the first cutter set is arranged on the support and protrudes out of the support in the first direction. The second cutter set is arranged on the support and protrudes out of the support in the second direction forming a first included angle with the first direction. And the first actuating part is configured to drive the bracket to rotate around the fixed shaft of the rotating shaft, so that the first knife group or the second knife group faces and extends into the bone seam. Wherein the thickness of the first knife group is configured to be smaller than that of the second knife group.

The invention relates to the technical field of medical instruments, and discloses an intelligent intervertebral dilator which comprises a transverse center shaft, a plurality of longitudinal shafts perpendicular to the center shaft are clamped on the center shaft side by side, distraction units are slidably connected to the positions, located on the two sides of the center shaft, of the longitudinal shafts respectively, each distraction unit comprises a sliding block, a distraction handle is connected to the lower portion of each sliding block, and the distraction handles are used for being inserted between adjacent vertebral bodies. A driving mechanism is arranged between the sliding block and the longitudinal shaft; the distraction unit located in the middle of the middle shaft is defined as a main distraction device, the other distraction units are defined as auxiliary distraction devices, a pressure sensor and a position sensor are arranged on the main distraction device, and a pressure sensor is arranged on each auxiliary distraction device; the device further comprises a control unit, and the pressure sensor, the position sensor and the driving mechanism are in communication connection with the control unit. The multiple distraction units are arranged to distraction intervertebral spaces synchronously, fracture caused by stress concentration during vertebral body distraction is avoided, pressure borne by the distraction units and the distraction height of the middle of the vertebral body can be monitored in real time, subjective judgment is avoided, and the distraction device is particularly suitable for osteoporosis patients.

The invention relates to the technical field of gastrointestinal surgery, and discloses a telescopic gastrointestinal surgery retractor device. Comprising a mounting frame, a fixing plate is fixedly connected to the side surface of the mounting frame, a stretching rod is fixedly connected to the rear surface of the fixing plate, a sleeve is connected to the rear end of the stretching rod in an embedded mode, the outer surface of the stretching rod is sleeved with a fixing ring, and an embedded pipe is fixedly connected to the upper surface of the fixing ring; when the length of the adjusting rod is adjusted, the adjusting rod can drive the adjusting plate and the measuring plate to move downwards together, and whether the height adjustment of the two groups of drag hook plates is consistent or not can be known according to the number of the measuring blocks, stored in the limiting seat, on the surface of the measuring plate. The fixing seat is embedded between the two sets of measuring blocks, the height of the measuring plate can be limited, the magnet can attract the upper surface of the limiting seat to fix the fixing seat, and the situation that use of the drag hook plate is affected due to the fact that the adjusted height of the drag hook plate is inconsistent is prevented.

The utility model relates to the technical field of medical instruments, and discloses a surgical retractor handle which comprises a handle body, the handle body is movably connected with a retractor body, one end of the handle body is provided with a preformed hole, a connecting rod is inserted into the preformed hole for installation, the bottom of the connecting rod is provided with the retractor body, the connecting rod is provided with a plurality of holes, and the holes are communicated with the retractor body. A reserved groove is formed in the inner side of the handle, a plug pin is arranged in the reserved groove, one end of the plug pin can penetrate through the reserved hole and is clamped with the corresponding hole, one end of the plug pin is fixedly connected with a blocking handle, and a groove matched with the blocking handle is formed in the reserved groove. According to the utility model, the connecting rod with the hook body is inserted into the preformed hole of the handle and then is fixed through the bolt, so that the device can be quickly disassembled and assembled, and the blocking handle is fixed in the handle through clamping with the groove, so that the stability and comfort are ensured.

Surgical retractor, characterized in that the initial segment of assembly 1 is produced by joining, i.e. assembling, a retractor with a gear lever (2.9) with a guide rail (2.1), wherein the front part (2.3) of the retractor is moved in direction (X), (2.5) onto the guide rail (2.1) and engages in the corresponding square sliding opening (2.2.2) of the guide rail, such that its front part (2.3) extends slightly beyond the exit surface (2.8) of the guide rail in the end position.

The invention provides a multi-degree-of-freedom double-arm skin flap retraction robot which comprises a multi-source sensing system, driving systems, a supporting frame and at least two skin flap supporting arms, the driving systems are installed on the supporting frame, each skin flap supporting arm is connected with one driving system, and the driving systems are installed on the supporting frame. The driving system drives the skin flap supporting arm to advance, retreat, lift and pitch, and the multi-source sensing system comprises a spatial position and posture sensing unit and a force touch sensing unit. Each skin flap supporting arm is provided with a spatial position and posture sensing unit and a force touch sensing unit which can monitor the configuration change and the stress state of the skin flap supporting arm in real time. The skin flap retractor has the advantages that dynamic supporting and retraction of skin flap tissue can be achieved, it is guaranteed that the surgical field is fully exposed, meanwhile, single-point tissue compression and trauma risks caused by a traditional retractor are reduced, manpower resources are saved, operation safety is guaranteed, and retraction efficiency and stability are improved.

The retractor for thoracoabdominal aorta replacement comprises a clamping assembly connected with an operating bed, the upper half portion of the clamping assembly is connected with a first connecting rod through a first locking assembly, the other end of the connecting rod is connected with two symmetrically-arranged universal balls through a second locking assembly, the universal balls are connected with a second connecting rod, and the second connecting rod is connected with a second connecting rod. A plurality of first traction assemblies and a plurality of second traction assemblies are installed on the second connecting rod through third locking assemblies. The device can be installed at any position of an operating bed, the second connecting rod can rotate by 360 degrees through the universal ball, the device adapts to patients with different fatnesses, the mounting angle and the mounting position can be adjusted through various locking assemblies, the device further adapts to patients with different body types, the whole structure can be detached into single structures to be disinfected and maintained, and the device is very convenient to use.

The present application relates to the technical field of medical auxiliary equipment, in particular to a neurosurgery operation retractor device, which comprises a central adjusting seat, the side wall of the central adjusting seat is symmetrically hinged with retraction arms, the end of the retraction arms away from the central adjusting seat is hinged with a retraction plate, the side wall of the central adjusting seat is hinged with a plurality of rhombic telescopic frames, the end of the rhombic telescopic frames away from the central adjusting seat is hinged with the retraction arms, the central adjusting seat is further provided with an adapter disc, and a multi-modal fixed base is detachably connected to the adapter disc; a transmission mechanism is installed in the central adjusting seat, a pressure sensor for collecting the tension of brain tissue is installed on the transmission mechanism, a control module is signal-connected with the pressure sensor, the control module is signal-connected with the rhombic telescopic frames, the adapter disc and the transmission mechanism, and the control module is signal-connected with an electromagnetic locker for locking the rhombic telescopic frames and the transmission mechanism. The present application effectively reduces the risk of brain tissue pulling injury, frees the hands of medical staff, and simplifies the operation process.

The invention belongs to the technical field of surgical instruments, and particularly relates to an incision retraction dilator for small incision deep tissue, which comprises a fixing mechanism, a fixing mechanism, a fixing mechanism and a traction mechanism, the expansion ring is arranged on the inner wall of the mounting block; the retraction mechanism is arranged at the top of the mounting block; the blood cleaning mechanism is mounted on the outer wall of the expansion ring, and the extension rod is arranged on the opposite side of the expansion ring; according to the retractor, the retractor mechanism is arranged, the end of the expansion assembly makes contact with an incision of a patient, the width of the expansion assembly is determined according to the size of the incision of the patient, the retractor is suitable for various different types of operations, the size of the position making contact with the incision is flexibly controlled according to the length of the incision, and the operation is more convenient. Compared with manual operation, expansion can be maintained more conveniently and stably through a mechanical means, and the requirement for the number of medical workers is reduced.

The invention relates to the technical field of medical instruments, in particular to a spinal surgery retractor which comprises a retractor mechanism, the retractor mechanism comprises a first retractor structure and a second retractor structure, the first retractor structure comprises a first retractor part and a second retractor part, and the second retractor part is telescopically assembled on the first retractor part. The first retracting part and the second retracting part are used for being matched to retract the tissue, and when the first retracting part and the second retracting part are used for being matched to retract the tissue, the second retracting structure is assembled on the first retracting part and the second retracting part and used for retracting the spine bone or the tissue. The invention relates to a spine retractor, in particular to a spine retractor, which aims at not only retracting surface tissues, but also retracting deep muscles during a spine operation, and simultaneously retracting spine bones during tissue retraction, is convenient to use, and is suitable for spine retraction at different positions.

The utility model relates to a semi-open type arthroscope retractor, which belongs to the technical field of medical instruments and comprises a main body ring, an extension ring and a retraction sheet, the extension ring is connected and communicated with the main body ring, the main body ring is used for being held by a hand of an operator, the extension ring is used for extending the position of the retraction sheet, the retraction sheet is fixedly connected to the bottom of the extension ring, and the retraction sheet is fixedly connected with the extension ring. And the retraction sheet is an arc-shaped sheet. Due to the annular design of the main body and the extension ring, a tool can extend into a notch position from a central position for operation.

The invention relates to the technical field related to medical instruments, and discloses a multi-joint locking type retractor for preparing a free tissue valve, which comprises a first joint arm, a second joint arm and a third joint arm, a bedside fixing frame is arranged at the lower end of the first articulated arm, a second articulated arm is rotatably arranged at the upper end of the first articulated arm, and the medical bed is characterized in that a third articulated arm is rotatably arranged at the end part of the second articulated arm, and a clamping module is rotatably arranged at the front end of the third articulated arm; according to the invention, through a cooperative structure of a fixing buckle, a rotating buckle, a bolt and a knob of the bedside fixing frame, and through cooperation of a threaded sleeve of the first joint arm and a thread adjustment design of the telescopic joint, stable connection (no obvious looseness) and height adaptation (according with operation habits of operators and requirements of operation sites) of the device and an operation bed frame are realized.

The invention relates to an adjustable claw-type retractor for an abdominal surgery and an operation method. The adjustable claw-type retractor comprises a handle, a mounting disc, at least five retractor parts and an adjusting assembly, a cavity with an opening in the upper end is formed in the handle in the Z-axis direction. According to the adjustable claw-type drag hook for the abdominal surgery and the operation method, the connecting plate is moved up and down to drive the fastener and the buckle in the connecting plate to move, and when the fastener moves downwards, the two adjacent drag hook pieces can be expanded, so that the distance between the two adjacent drag hook pieces is increased; when the buckle moves upwards, the two adjacent draw hook pieces are close to each other under the action of elastic force, and the distance between the two adjacent draw hook pieces is reduced, so that the coverage range of the draw hook pieces can be effectively adjusted according to the taking-down of an incision, and the problems that more medical personnel are required to participate when a plurality of S-shaped draw hooks are used, and the operation is inconvenient are effectively solved. Certain inconvenience is brought to an operation, and normal operation of a surgeon is affected.

The invention discloses a hepatobiliary surgery retractor which comprises an adjusting frame and a working frame, a plurality of positioning clamps are clamped on the outer surfaces of the adjusting frame and the working frame, and automatic traction monitors are arranged on the side walls of the positioning clamps on the outer surface of the working frame. The adjusting frame is composed of a vertical rod and a transverse rod, a fixing plate is fixed to the positioning clamp between the vertical rod and the transverse rod, and an L-shaped connecting plate is fixed to the side wall of the positioning clamp on the transverse rod. The operation frame comprises a U-shaped rod and a supporting rod. The positioning clamp is composed of two C-shaped holding blocks in mirror symmetry and the like, and the C-shaped holding blocks can be meshed with the rod pieces to achieve fixation by rotating the upper rotary knob and the lower rotary knob. A supporting plate of the automatic traction monitor is connected with the outer side of a C-shaped holding block on the U-shaped rod, a traction claw of a traction rod in the automatic traction monitor is used for traction, and a micro telescopic rod on the outer side drives the traction rod through a traction arm, so that automatic traction is realized. Meanwhile, the cylindrical spring is matched with the pressure sensor, and the pressure is detected when the compression spring is pulled, so that the pulling force is obtained, and the operation safety and accuracy are guaranteed.

Illuminating cheek retractor

A ligament retractor system may include a ligament retractor, one or more sensors configured to identify a location of one or more anatomical landmarks or instruments, and a processing unit configured to receive and process data from the one or more sensors.

The invention discloses a retractor fixing system for a surgical operation, and belongs to the technical field of medical instruments. In order to overcome the technical defects that an existing manual retractor needs full-time personnel to apply force continuously, and a mechanical retractor is insufficient in degree of freedom of adjustment (limited by plane adjustment of + / -15 degrees) and cannot adapt to instruments of multiple specifications, a modular solution is provided. Quick assembly and disassembly within 5 seconds are achieved, and the clamping force is larger than or equal to 500 N; the multi-direction adjusting module adopts a dual-mode universal damping ball head assembly (6) and supports a first connection mode and a second connection mode (parallel traction force distribution), and a hexagonal damping adjuster (601) can accurately control the traction force; according to the instrument adaptation module, a retractor adapter (7) is provided with an ISO 13485 standard interface (701) and an anti-disengagement clamping groove (702) and is compatible with retractors and tissue forceps with different diameters, a chamfer design (R is larger than or equal to 1 mm) supports a medical disinfection bag to wrap the system in a sterile mode, the surgical field exposure stability is remarkably improved (the tremor amplitude is reduced to be smaller than or equal to 0.1 mm), and the instrument adaptation module is suitable for complex anatomical structure adjustment of open surgery. The attached drawings of the abstract show the system assembly structure and the profile characteristics of the universal ball head assembly.

The invention relates to a pipe retrieval arrangement (1a, 1b) with at least one pipe retrieval (2, 3), wherein the at least one pipe retrieval (2, 3) has a retrieval cylinder (4, 9) and a piston (5, 10), wherein the piston (5, 10) is connected to a piston rod (6, 11), wherein the piston (5, 10) and the retrieval cylinder (4, 9) define a pressure chamber (7, 12), wherein a gas (8) is arranged in the pressure chamber (7, 12), wherein the gas (8) is compressed in the pressure chamber (7, 12) during a pipe return and expands during a pipe advance. Better control of the retraction force is made possible by the provision of two pipe retractors (2, 3), namely a first pipe retractor (2) and a second pipe retractor (3), wherein the first pressure chamber (12) of the first pipe retractor (2) is connected to a first end (14) of a first line (13) and a second end (15) of the first line (13) is connected to a first pressure gauge (16), wherein the second pressure chamber (12) of the second pipe retractor (3) is connected to a first end (18) of a second line (17) and a second end (19) of the second line (17) is connected to a second pressure gauge (20).

The abdominal wall retractor for the observation hole of the laparoscope comprises a first retraction arm and a second retraction arm, the first retraction arm and the second retraction arm are hinged through a hinged shaft, and the first retraction arm comprises a first retraction arm front section, a first retraction arm middle section and a first retraction arm rear section. The end part of the rear section of the first retraction arm is fixedly connected with a first operation ring; the second retraction arm comprises a second retraction arm front section, a second retraction arm middle section and a second retraction arm rear section, the end part of the second retraction arm rear section is fixedly connected with a second operation ring, and the end part of the first retraction arm front section is movably connected with a first retraction rod and a second retraction rod; and the end part of the front section of the second retracting arm is movably connected with a third retracting rod and a fourth retracting rod. The utility model has the beneficial effects that the abdominal wall of the observation hole and the subcutaneous fat layer can be expanded, and the anterior sheath layer and the peritoneal layer can be better exposed, so that the peritoneal layer and the anterior sheath layer can be better sutured under direct vision, related complications of a puncture hole are avoided, the use is safe and reliable, and the operation time of medical personnel is saved.