249 results about "Retractor" patented technology

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.

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.

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 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 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.

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.

The utility model relates to the technical field of lingual draw hooks, and discloses a lingual draw hook for oral and maxillofacial surgery, which is characterized in that a pulling mechanism is mounted in the middle of a hook body; the hook body comprises an extending piece, the left side and the bottom of the extending piece are fixedly connected with an upper clamping piece and a lower clamping piece respectively, and through holes are formed among the upper clamping piece, the lower clamping piece and the extending piece. When the lingual retractor for the oral and maxillofacial surgery is used, the extension piece is pinched by a hand, so that the pulling and avoiding of the tongue can be easily realized through the elastic clamping force of the upper clamping piece and the lower clamping piece, and meanwhile, the fatigue of the hand can be relieved. By means of the arranged pulling mechanism, when an upper clamping piece and a lower clamping piece need to be clamped, a groove block only needs to slide in a sliding groove, so that a pull rod can be driven to drive a movable plate to be pulled, at the moment, under matched dragging of the movable rod, the upper clamping piece and the lower clamping piece can get close to each other, clamping of the tongue can be achieved, and the clamping effect of the tongue is improved. Hand holding is relieved, and hand fatigue can be further relieved.

A joint clamp for a surgical retractor system includes clamps, a cam bolt, and a cam lever. The cam bolt passes through the clamps. A cam lever comprising a cam head pivotally attached an upper portion the cam bolt to permit rotation between a locked position and an unlocked positions. The joint clamp may include springs which provide a scissors clamp of the clamps with a clip-on feature in which the scissors clamp may clipped-on and clipped-off an object such as a frame member, table post, or retractor handle. The springs may further prevent or reduce a rising movement of the clamps when the cam lever rotates from an unlocked state to a locked state.

The utility model relates to the technical field of fan-shaped drag hooks for the abdominal cavity of children, in particular to a fan-shaped drag hook for the abdominal cavity of children, which is convenient to use and comprises a large dental film, a main drag hook arranged at the bottom end of the large dental film, a plurality of sliding adjusting grooves arranged in the middle of the large dental film and a fixing bolt arranged in the middle of the large dental film. A plurality of detachable drag hooks are arranged in the middle of the fixing bolt, a fixing hole is formed in the middle of each detachable drag hook, the fixing holes are matched with the fixing bolt, a positioning groove is formed in the rear portion of each detachable drag hook, an adjusting handle is arranged on the rear portion of each detachable drag hook, and each adjusting handle is matched with the corresponding positioning groove.

The application discloses a trachea conforming hook, an ear-behind neck side conforming hook and a thyroid surgery kit. The trachea conforming hook comprises a first handle, a first hook head arranged at the distal end of the first handle, the first hook head comprises a first clamping arm, a first connecting section, a second clamping arm and an extension section connected in sequence, the first clamping arm and the second clamping arm are perpendicular to the forward direction of the first handle and are used for pushing and pulling the trachea, the first clamping arm extends from the distal end of the first handle in a first direction, the first connecting section extends from the distal end of the first clamping arm in a second direction, the second clamping arm extends from the distal end of the first connecting section in the opposite direction of the first direction, and the extension section extends from the distal end of the second clamping arm in the opposite direction of the second direction, and the bending curvature of the first connecting section is the same as that of the extension section to form parallel arc sections, and the bending direction of the second clamping arm is perpendicular to the bending direction of the first connecting section. The thyroid surgery kit can form a large enough surgical cavity for thyroid surgery and improve the surgical quality.

The set of inventions relates to medical devices, in particular to surgical retractors and wound retractors for displacing and securing anatomy of a surgical incision in a given position during surgery to provide access to a surgical region of a patient's body. A removable clip for a surgical retractor, made as an L-shaped curved member, includes a base provided with a device for fixation in a surgical retractor and a microsurgical instrument recess, and a pair of teeth for holding an anatomical structure. The toothing is configured as a profiled plate with a working area widening to ensure contact with the anatomical structure, the widening being formed by a raised pad located at least on the inner and / or outer end edge side of the lower end of the plane of the toothing plate. The included angle between each tooth part and the plane of the base is smaller than 90 degrees, and therefore gaps used for passing of microsurgical instruments are formed between the tooth parts. The surgical retractor comprises a frame with a rack carrying a fixed arm and a movable arm, the fixed arm and the movable arm being hingedly connected to a retainer for the detachable clip, where the retainer is configured to receive at least one of the aforementioned detachable clips. A removable clip assembly for a surgical retractor includes at least one central dual tooth removable clip; the at least one peripheral double-tooth detachable clamp is constructed to be capable of accommodating the central double-tooth clamp between the tooth parts of the central double-tooth clamp; and at least one central single-tooth detachable clamp. The use of the invention provides an increased working space and a higher degree of freedom of surgical instrument operation, enabling access to the lateral region of the operated structure during surgery without extending the skin incision.

The present application belongs to the technical field of medical apparatus and instruments, and particularly relates to an angle-adjustable retractor support. The present application aims at the problem that the retractor support is a fixed structure after being assembled and installed on a hospital bed, and cannot be further adjusted, thus being not applicable to patients with different fatness levels and having poor universality. The present application provides an angle-adjustable retractor support, which comprises a mounting rod and a support. The mounting rod is fixedly connected to a fastener. The support encloses a surgical area. A plurality of retractor ends are connected to the support, and the other ends extend to the surgical area. The support is rotatably connected to the mounting rod through a rotation control assembly. One end of the rotation control assembly is connected to the mounting rod, and the other end is connected to the support. The present application realizes the rotatable connection between the mounting rod and the support through the rotation control assembly. After the retractor support is installed on a hospital bed as a whole, the support can still rotate, thereby meeting the needs of patients with different fatness levels and expanding the applicable scenarios.

This invention relates to a sternal retractor for internal mammary artery sampling, comprising two paddles for retracting the sternum and an adjustable clamping mechanism. The clamping mechanism includes an expansion mechanism for fixing the expansion mechanism in a suitable position on the operating table. The two paddles are mounted on the expansion mechanism, which retracts the sternum by driving the two paddles apart. The expansion mechanism also includes an upward lifting mechanism, which simultaneously pulls the two paddles upward during the retraction process. This sternal retractor for internal mammary artery sampling achieves horizontal retraction of the sternum while simultaneously lifting it upward using the paddles, effectively increasing the wound size and maneuverability within the wound. This helps achieve better retraction with less force applied horizontally to the sternum, reducing the risk of sternal damage.

A surgical device, comprising a handle configured to be held by a user, a moveable tip coupled to the handle and a camera device disposed at the tip, wherein a field of view of the camera device can be radially adjusted.

The invention discloses a sealing negative pressure protection device for abdominal cavity hyperthermic perfusion chemotherapy in laparotomy, and belongs to the technical field of medical instruments, the sealing negative pressure protection device comprises a protection cover body, the protection cover body is of a three-layer structure and sequentially comprises a porous breathable layer, a middle adsorption layer and a sealing supporting layer from inside to outside, and a circle of medical pressure-sensitive adhesive is arranged on the edge of the inner layer of the protection cover body; a negative pressure connector is arranged at the top of the protective cover body and used for being connected with external negative pressure equipment, two hanging rods are perpendicularly fixed to the inner layer of the protective cover body, telescopic supporting structures are fixed to the bottom ends of the two hanging rods, and a plurality of liquid inlet holes and liquid outlet holes are further formed in the protective cover body. The supporting assembly is integrated on the inner side of the protective cover body, and the problems that the compatibility of the surgical retractor and a sealing rubber strip on the edge of the protective cover body is poor, and gaps are likely to be generated are solved; by arranging the negative pressure connector and the middle adsorption layer, dual treatment of aerosol is achieved, and the occupational exposure risk of medical staff is reduced.

This utility model relates to a one-button locking flexible shaft retractor and its matching brain repression plate, belonging to the field of medical device technology. It includes a flexible shaft retractor and a brain repression plate. The flexible shaft retractor includes a plate clamp assembly, a flexible shaft body, and a fixing seat. The plate clamp assembly includes a fixing rod, an outer sleeve, a spring, a steel ball, and an end cap. The brain repression plate includes a round handle and a pressure plate. This utility model enables one-button locking of the brain repression plate, which is simple and quick to operate, saves operation time, improves surgical efficiency, provides a good instrument operation experience, and ensures consistent locking firmness, greatly reducing surgical risks. It prevents slippage or wobbling due to incomplete locking and avoids the "cold" feeling caused by direct contact between metal instruments and human tissue. The parallel fixing method of the brain repression plate and the flexible shaft retractor in this utility model makes clinical use more convenient, improves the stability of locking and fixing, reduces material costs, and increases the clinical surgical operating space.

The nerve retractor comprises a first blade, a second blade, a first handle and a second handle, an annular plate is arranged at the near end of the first blade, the first handle is fixedly connected with the annular plate, the second blade is rotationally connected with the second handle on the annular plate, and the first handle is fixedly connected with the annular plate. The first handle and the second handle are both sleeved with handle sleeves. When the second handle gets close to the first handle, the second blade moves in the direction away from the first blade, and the through hole of the annular plate, the second blade and the first blade form a channel; the first blade is shorter than the second blade; a locking piece is arranged between the first handle and the second handle and used for locking the positions of the second handle and the first handle. The double-blade distraction structure is adopted, the problem that the force exerting direction is not easy to grasp during distraction is effectively solved, meanwhile, the working channel formed by the annular plate and the two blades is good in stability, nerve roots can be effectively distraction, and meanwhile instrument operation of a surgeon is not affected.

This invention relates to the field of medical devices, and particularly to a novel tracheostomy occlusion device, comprising an operating table, a fixation plate, an adjustment mechanism, and an execution mechanism. This invention addresses the following problems encountered in the practical use of tracheostomy auxiliary retraction devices: prolonged holding of the retractor by the surgical assistant can cause soreness and lead to shaking of the retractor, which in turn can cause neck movement, affecting the normal progress of the surgery and potentially causing further trauma to the patient's trachea. Furthermore, it cannot effectively manage blood flowing from the neck, which may lead to blood entering the trachea and causing respiratory discomfort, even threatening the patient's life; the portion of the tracheostomy cannula inside the trachea obstructs the airway, affecting the patient's ability to cough up sputum and leading to inaccurate assessments of the patient's coughing ability; and it can easily cause blind sinus tracts to form at the tracheostomy site.

The utility model relates to the technical field of medical instruments, in particular to a drag hook for impacted wisdom teeth, which comprises a handle part, a first connecting part and a first working part which are smoothly connected in sequence, the first working part is L-shaped, and the first working part and the first connecting part form a Z shape; the bent position of the first working part is a spherical protrusion, and the end, away from the handle part, of the first working part is of a shovel-shaped structure. The included angle of the joint of the first working part and the first connecting part and the field angle of the first working part are obtuse angles. The first working part is L-shaped, and forms a Z shape with the first connecting part, so that the retractor is located at the optimal working position, and more surgical visual fields can be exposed; the bending part of the working part is arranged to be the spherical bulge, and the spherical bulge can push away and effectively block the buccal fat pad, so that the phenomenon that tissues of the buccal fat pad are drawn in by a cutting rotary head of a power system is prevented, the occurrence of extra trauma, bleeding and other complications can be effectively avoided, and the safety of an operation is improved.

The invention relates to the technical field of tractors for oral surgery, in particular to a retractor for oral maxillofacial surgery, which comprises a frame, a mounting rod and an adjusting mechanism. A mounting seat is arranged on the mounting rod, a first support is arranged on the mounting seat, an adjusting seat is movably mounted on the first support, and a traction rod and a buffer assembly are arranged on the adjusting seat; the adjusting mechanism is used for controlling the adjusting seat to slide on the first support. A guide rod, a limiting block and a first elastic piece are arranged on the mounting seat; a first ratchet bar is arranged on the mounting plate, the mounting plate is in sliding fit with the guide rod, the end, away from the mounting base, of the guide rod is connected with a limiting block, and the two ends of the first elastic piece are connected with the mounting plate and the limiting block respectively. The function of flexible adjustment of the traction force is achieved, the effect of adjusting the traction force of the traction rod is achieved through cooperation of the adjusting mechanism and the buffering assembly according to the operation requirement, and the technical problem that due to the fact that a traditional traction device lacks buffering in force adjustment, tissue damage is likely to be caused is solved.

The invention discloses a retractor for surgical operation, and relates to the technical field of surgery. Comprising a bottom plate and a retracting hook, and further comprises a lifting mechanism for controlling the retracting hook to move in the Z-axis direction, a position adjusting mechanism for controlling the retracting hook to move in the Y-axis direction, a symmetrical displacement mechanism for controlling the retracting hook to move in the X-axis direction and an angle adjusting mechanism for controlling the retracting angle. The position adjusting mechanism comprises a rapid adjusting mechanism and a fine adjusting mechanism, the rapid adjusting mechanism is arranged on the fixing plate, and the fine adjusting mechanism is arranged above the rapid adjusting mechanism. The lifting mechanism adjusts the position of the retracting hook in the Z-axis direction, the position adjusting mechanism controls the position of the retracting hook in the Y-axis direction, the symmetrical displacement mechanism controls the position of the retracting hook in the X-axis direction, the angle adjusting mechanism can adjust the retracting angle, and the degree of freedom is high when medical staff adjust the position of the retracting hook. And the device can be accurately moved to a target position, so that the working efficiency of medical staff is improved.

A retractor-camera kit for minimally invasive surgery is provided. The kit includes a retractor comprising at least a top blade and a first side blade connected to one another through a hinge, a handle connected to the retractor, and a camera connected to the retractor via a designated holder to provide visualization of a surgical site while avoiding the need for an additional incision for passing an imaging unit therethrough.

The present disclosure relates generally to a surgical retractor assembly, and more particularly to a surgical retractor assembly that is structured and configured to move between locked and unlocked configurations / positions, have components that move with respect to other components, have parallel action, and provide improved visualization and fixation.