213 results about "Small incision" patented technology

A retractor for use in surgical operations comprises a pair of blade assemblies. In operation, the blade assemblies are initially in a closed position 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 retractor is adapted to rotate a first blade about a first axis and a second blade about a second axis. The retractor is adapted to move the pair of blade assemblies apart along a third axis. The retractor is adapted to pivot the first blade about a fourth axis and the second blade about a fifth axis. In some embodiments, a method of performing an operation, e.g. a spinal operation, on a patient using the disclosed retractor is provided.

A retractor for use in surgical operations comprises a pair of blade assemblies. In operation, the blade assemblies are initially in a closed position 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 retractor is adapted to rotate a first blade about a first axis and a second blade about a second axis. The retractor is adapted to move the pair of blade assemblies apart along a third axis. The retractor is adapted to pivot the first blade about a fourth axis and the second blade about a fifth axis. In some embodiments, a method of performing an operation, e.g. a spinal operation, on a patient using the disclosed retractor is provided.

A retractor for use in surgical operations comprises a pair of blade assemblies. In operation, the blade assemblies are initially in a closed position 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 retractor is adapted to rotate a first blade about a first axis and a second blade about a second axis. The retractor is adapted to move the pair of blade assemblies apart along a third axis. The retractor is adapted to pivot the first blade about a fourth axis and the second blade about a fifth axis. In some embodiments, a method of performing an operation, e.g. a spinal operation, on a patient using the disclosed retractor is provided.

An implant having an upper support body and a lower support body that are coupled together by use of pinions integral to the upper support body and apertures integral to the lower support body. A dual directional driver is rotatably coupled to a forward spacer and a rear spacer, wherein the implant forms a compact arrangement for ease of insertion allowing a posterior surgical approach for placement of the spinal implant for interbody fusion allowing the implant to be inserted through a small incision and rotation of the dual directional driver will cause movement of the upper support body an equal distance from the lower support body to increase the implant in size in situ.

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.)

The invention belongs to the field of high polymer materials, and particularly relates to application of a polymer as an intraocular lens material and an intraocular lens. The polymer prepared by using the hydrophobic monomer, the hydrophilic monomer, the cross-linking agent and the initiator as raw materials is used as the artificial lens, and the obtained artificial lens can be water-triggered to harden, and has the advantages of foldability, small incision implantation, water absorption hardening after implantation, strong supporting property and the like.

A retractor for use in surgical operations comprises a pair of blade assemblies. In operation, the blade assemblies are initially in a closed position 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 retractor is adapted to rotate a first blade about a first axis and a second blade about a second axis. The retractor is adapted to move the pair of blade assemblies apart along a third axis. The retractor is adapted to pivot the first blade about a fourth axis and the second blade about a fifth axis. In some embodiments, a method of performing an operation, e.g. a spinal operation, on a patient using the disclosed retractor is provided.

The invention discloses a spine minimally invasive endoscopic reduction type fusion cage, and belongs to the technical field of medical equipment.The spine minimally invasive endoscopic reduction type fusion cage comprises an upper base and a lower base, the upper base is slidably connected to the upper portion of the lower base, an upper inclined plate is arranged at the bottom of the upper base, and a lower inclined plate is arranged at the top of the lower base; the inclined face of the upper inclined plate is attached to the inclined face of the lower inclined plate, side expanding mechanisms are symmetrically and rotationally connected to the two sides of the lower base, a top expanding mechanism is slidably connected to the front side of the lower base, a threaded rod is rotationally connected to the lower base, and the upper base is in threaded connection with the threaded rod. And the threaded rod rotates to drive the upper base to slide above the lower base. The device can be implanted through a small incision in a folded state, can be expanded after entering the intervertebral space, not only can be lifted in the vertical direction and well support the intervertebral space, but also can be unfolded in a fan shape in the horizontal plane and well matched with the anatomical structure of the intervertebral space.

A retractor for use in surgical operations comprises a pair of blade assemblies. In operation, the blade assemblies are initially in a closed position 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 retractor is adapted to rotate a first blade about a first axis and a second blade about a second axis. The retractor is adapted to move the pair of blade assemblies apart along a third axis. The retractor is adapted to pivot the first blade about a fourth axis and the second blade about a fifth axis. In some embodiments, a method of performing an operation, e.g. a spinal operation, on a patient using the disclosed retractor is provided.

The utility model relates to the technical field of medical apparatus and instruments, in particular to a heart valve forming ring implantation assembly which comprises a forming ring body which comprises an annular main body arranged in a chain type structure. The ring holder comprises a ring holding part, the ring holding part comprises a shell and a ring holding sleeve piece movably arranged at the lower end of the shell, the ring holding sleeve piece comprises a limiting block, a movable connecting part arranged at the upper end of the limiting block and a plurality of supporting rods arranged on the periphery of the lower end of the limiting block, and ring holding pieces are arranged at the tail ends of the supporting rods. The shell is provided with an operation assembly; and when the movable connecting part moves downwards, the plurality of supporting rods drive the ring holding piece to extend outwards. The forming ring can be adapted to forming ring bodies with various sizes; expansion of the valve ring cannot be caused, and the influence of the annular body on the valve ring in the contraction period is eliminated; the operation is simple and fast; a doctor can observe and use the device conveniently, more operation visual fields are provided, and the device is more suitable for small incision operations.

Implantable prostheses and related methods are generally described. In some embodiments, the prosthesis may be used for soft tissue reconstruction. The prosthesis may be formed from a three-dimensional load-bearing porous scaffold having interconnected networks of pores, thereby enabling tissue infiltration and allowing native tissue, blood vessels, and cells to colonize on the scaffold. In some embodiments, the scaffold may be formed from a biodegradable material such that it may degrade during the tissue infiltration process, leaving native tissue. In some embodiments, the stent may be formed from a triple periodic minimum surface, such as a helical tetracosahedron, to achieve high compressibility and high porosity. The compressibility of the implant may simulate the mechanical behavior of native tissue and allow the implant to be delivered through a small incision site (e.g., with an implant delivery funnel).

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.

This invention discloses a spinal endoscopic screw-rod fixation system, belonging to the field of medical device technology. The system includes screws, locking pins, and connecting rods. The screw head has a fixing hole with internal threads on the inner wall and a driving hole at the bottom. The proximal end of the screw forms an arc-shaped mating surface around the fixing hole. The locking pin has external threads matching the internal threads, and a spherical clamping surface is formed on the side of the clamping head facing the connecting block. This invention, through the arc-shaped mating between the screw, locking pin, and connecting block, allows the connecting block to adapt to the screw at multiple angles, facilitating insertion and locking in spinal endoscopy or minimally invasive small-incision environments. The flip-handle mechanism facilitates tightening the locking pin in confined operating spaces and prevents arbitrary disassembly of the locking pin, improving the operational convenience and safety of the fixation system.

The utility model belongs to the technical field of medical instruments, and relates to a microneedle type meniscus suture device which comprises a handheld handle, an ejector pin and a plurality of loops, the ejector pin is arranged on the handheld handle, the front end of the ejector pin is movably arranged, the loops are sequentially arranged at the front end of the ejector pin in a sleeving mode in the moving direction, the front ends of the loops are sharp, and sutures are arranged between the loops. A one-way limiting structure is arranged between the front end of the ejector pin and the inner wall of the loop, so that the front end of the ejector pin can support the loop and retreat from the loop. Compared with the prior art, the microneedle type meniscus suturing device has the advantages that the operation can be performed with a smaller incision, the postoperative pain is relieved, the recovery time is shortened, and the overall influence of the operation on the body of a patient is remarkably reduced.

The utility model relates to the technical field of retractors, and discloses a facial small incision retractor which comprises a base and mounting holes, the mounting holes are formed in the front side and the rear side of the upper surface of the base, an electric push rod is fixedly connected to the middle of the upper surface of the base, and fixing rods are fixedly connected to the front side and the rear side of the upper surface of the base. The top of the outer surface of the fixing rod is movably sleeved with a connecting plate, and the inner wall of the connecting plate is fixedly connected with a mounting frame. According to the facial small incision retractor, a movable block and a limiting block can be driven to move downwards through counter-acting force generated by extrusion of a reset spring, so that the limiting block can be inserted into a limiting groove, a fixed block and a transmission plate can be fixed, and the device indirectly achieves the function of automatically fixing a drag hook; and the phenomenon that the position of the drag hook deviates is not prone to occurring, the accuracy is high, and the using convenience of the device is greatly improved.

Methods are provided for aesthetic restoration and reconstruction of bone loss, deficit, defect, or a combination thereof. The methods include administration of one or more suitable bone derived compositions by a minimally invasive procedure such as injection using a needle, syringe, etc., placement in or through a small incision, or a combination thereof. The properties and characteristics of the bone derived composition, including without limitation, flowability, injectability, size, shape, and physical form, are limited only by the requirement that they are capable of administration by a minimally invasive technique. For example, these methods are effective for restoration of facial features, e.g., lost chin definition, jawline definition, bone around nasal lines, and bone around the upper and lower eye area. These methods are also effective for treatment of bone deficiency and loss in other body features such as shoulders and collarbones, pelvis, feet, ankles, hands, and wrists.

This invention relates to a novel detachable rib circumferential device, comprising a crossbeam and at least two circumferential arms. The crossbeam is made of a flexible and shapeable medical material, and its sides have positioning grooves corresponding to the number of circumferential arms. The circumferential arms are made of a material that automatically shrinks when heated, and their width is less than or equal to the width of the positioning grooves. This invention features an ingenious structure and reasonable design, allowing for easy and convenient insertion even through small incisions, simplifying surgical procedures and adapting to the current trend of increasingly minimally invasive surgical incisions.

The present invention provides an access device for accessing an intervertebral disc having an outer shroud including an access shroud having a larger diameter (approximately 16 mm to 30 mm) from the skin down to the facet joint line and an inner shroud having a second smaller diameter (approximately 5 mm to 12 mm) extending through the access shroud and down to the level of the intervertebral disc. This combines the advantages of a direct visual microsurgery / small incision approach and a percutaneous "super-MIS" technique.

The invention discloses an antifungal corneal stroma lens and a preparation method thereof, and relates to the technical field of tissue engineering, and the preparation method of the antifungal corneal stroma lens comprises the steps that corneal tissue taken out through femtosecond laser small incision corneal stroma lens extraction operation is obtained, and the central thickness of the corneal tissue is 80-150 microns; cleaning and disinfecting the cornea tissue, and performing decellularization treatment through a decellularization agent to obtain a decellularized cornea tissue; and placing the acellular cornea tissue in a voriconazole solution so that voriconazole is loaded on the acellular cornea tissue to obtain the antifungal cornea stroma lens. The invention provides the antifungal corneal stroma lens, and the bioavailability of the fungal keratitis eye medicine is improved.

The invention belongs to the technical field of medical instruments, and particularly relates to an artificial mitral valve suture-free automatic implantation device which comprises a catheter, one end of the catheter is fixedly connected with an opening and closing puncture mechanism, the inner wall of the catheter is fixedly connected with a pushing mechanism, a groove is formed in the outer surface of the catheter, and a filling solvent bag is installed in the groove; through the arranged opening and closing puncture mechanism, the opening and closing puncture head enters the human body with the minimum incision and then is expanded after entering the human body, the initial puncture point is extremely small, direct injury to tissues such as blood vessels and cardiac muscle can be reduced, the path of the automatically expanded needle head is more regular, important blood vessels, nerves or cardiac muscle tissues can be avoided, the accidental injury risk is reduced, and the working efficiency is improved. According to traditional implantation, a puncture channel possibly needs to be expanded in advance, an open-close type needle head is automatically expanded after entering, an additional expansion step is not needed, traction and extrusion on surrounding tissue are reduced, and the possibility of hematoma and infection after an operation is reduced.

The utility model relates to the technical field of corneal transplantation surgical instruments, in particular to a corneal graft implanter for corneal transplantation surgery, which comprises an implanter element, a connecting hose, a bottle cap, a bottle body and an injector, the bottle cap comprises a cap body and a push-pull plunger device, the push-pull plunger device comprises a plunger rod, a plunger and a plunger cylinder, and the plunger rod is connected with the connecting hose. One end of the plunger rod is fixedly connected with the cover body, the other end of the plunger rod penetrates through the top of the plunger cylinder in an airtight mode and is fixedly connected with a plunger matched with the plunger cylinder in the plunger cylinder, and a connecting pipe is arranged at the bottom of the plunger cylinder. And the connecting hose is used for connecting the top of the implanter element with the connecting pipe or the injection port of the injector. The implanter is used for pre-loading a donor cornea graft; the donor corneal graft is stored and transported to an operation position of a patient in a sterile mode and can be directly taken and used, and the donor corneal endothelial cell loss is avoided to the greatest extent in the receiving and implanting process of the donor corneal graft; meanwhile, a small-incision cornea transplantation operation is carried out through the implanter, and convenient transplantation is provided for ophthalmologists.

The small-incision minimally invasive steel plate comprises an end plate body and a rod plate body which are connected in a T shape, the end plate body is connected to one end of the rod plate body and bent towards the top face of the rod plate body, an insertion tip is formed at the end, away from the end plate body, of the rod plate body, and the insertion tip is connected with the end plate body. A first screw hole, a second screw hole and a third screw hole are sequentially formed in the surface of the rod plate body from the position close to the end plate body to the inserting tip end in the extending direction of the rod plate body and connected to a first screw, a second screw and a third screw correspondingly. The extending direction of the first screw hole is perpendicular to the surface of the rod plate body, the extending direction of the second screw hole and the extending direction of the third screw hole are inclined to the surface of the rod plate body, and the inclination angle of the third screw hole is larger than that of the second screw hole. According to the utility model, the incision only needs 1.5-2 centimeters, and the implantation is more suitable.

Valve holders and introducers for delivering a prosthetic heart valve to an implant site are in various embodiments configured to facilitate insertion of prosthetic valves through small incisions or access sites on a patient's body. The valve holders can also be configured to reduce or eliminate the occurrence of suture looping or other damage to the prosthetic valve during implantation. A valve holder according to embodiments of the invention includes features that reduce or eliminate mistakes during implantation of the prosthetic valves, such as a removable activator dial and a removable handle that prevent implantation of the valve prior to proper deployment or adjustment of the holder. An introducer is provided which can facilitate passing of a prosthetic valve between adjacent ribs of a patient. Valve holders and introducers according to the various embodiments can be used in minimally invasive procedures, such as thoracotomy procedures.

Mastopexy implants for breast lifts create new tissue planes in the breast that provide a more durable lift, and are particularly useful in breast lifts with a high content of fatty tissue; the implants can be implanted through small incisions using blunt dissection, reducing operating time, and providing a better aesthetic appearance with minimal scarring; the implants are designed to be temporary, and have sufficient retention strength to allow the new tissue planes to form and support the lifted breast without any significant loss of support during this regenerative period.

The invention discloses an encapsulated mesenchymal stem cell microneedle modified cornea stroma lens and a preparation method and application thereof, the cornea stroma lens is a cornea stroma lens generated from femtosecond laser small incision cornea microlens extraction (such as SMILE operation), and has excellent biocompatibility and transparency. The lens is modified by a microneedle structure, so that the lens can be accurately anchored to a cornea defect part, and meanwhile, the encapsulated mesenchymal stem cells locally and continuously release repair promoting factors to promote cornea cell regeneration and tissue repair. The preparation method is simple, high in universality and suitable for large-scale production, and based on reutilization of the myopia operation waste lens, the availability of materials is improved, waste of medical resources is reduced, and the myopia operation waste lens has important economic and clinical application prospects in the field of cornea repair.

Embodiments comprise novel portacatheter structural extensions, wherein a core port with extensions more fully utilizes the port incision, is more stable in the pocket, and fits through the same incision versus the core port without extensions. Extensions resist port flipping by limiting rotation around the port long axis, which enhances the stability of a port with a broad base and permits the design of a stable port with a narrow or absent base. A narrow or absent base enables the port to fit through a small incision. Implantation is further enhanced by expanding the use of the Seldinger technique including the use of dilators and / or balloons in place of blunt dissection to fashion a subcutaneous pocket for a port. In embodiments, the back of the port comprises a closeable aperture, so that the entire portacatheter, with the port and catheter attached, can be inserted over a guidewire.

The utility model relates to the technical field of medical instruments, in particular to a curvature-adjustable surgical knife handle, which comprises a blade, a blade mounting piece, a knife handle main body, a support block, a screw rod, a knob and two steel ropes, the knife handle main body comprises a plurality of block bodies and a plurality of capsule bodies, each block body is provided with two arc-shaped grooves, and the capsule bodies are respectively arranged in the corresponding arc-shaped grooves. Two first round holes are formed in the block body, two second round holes are formed in the capsule body, one ends of the two steel ropes are fixedly connected with the blade mounting piece, and the two steel ropes are connected with the knob, so that the problems that in the prior art, in a surgical operation, skin flaps need to be stripped through a small incision embedded dilator, the cross section of stripped skin tissue is arc-shaped, and the skin flaps cannot be stripped are solved. The technical problems that when a deep flap is stripped, tissue close to an incision protrudes on the cross section, a straight knife handle cannot enter the stripping position through the small incision, and the required flap with the uniform thickness cannot be stripped are solved.

The utility model belongs to the technical field of medical treatment, and particularly relates to a small incision operation belt sleeving device which comprises a handle, an auxiliary shearing assembly is arranged on the outer wall of the handle, the handle is rotationally connected with a sliding rod, one end, away from the sliding rod, of the sliding rod is fixedly connected with a scissor body, and a threading hole is formed in the surface of the scissor body. According to the belt sleeving device for the small incision operation, due to the arrangement of the threading hole, in the operation, a doctor does not need to additionally use other threading tools, the operation that an operation line penetrates through the back face of a blood vessel can be completed directly through the radian of the scissor body and the threading hole, the position of the operation line is fixed through the threading hole, and treatment such as blocking of the blood vessel is achieved; the operation of threading, blood vessel bypassing, fixing and the like of the operation line is completed at a time, the operation process is simplified, and the operation efficiency is improved. Meanwhile, due to the design of function integration, the space occupied by surgical instruments in the thoracic cavity is reduced, and the surgical risk is reduced.

The application belongs to the technical field of surgical instruments, in particular to a small-incision deep-tissue incision retractor and dilator, which comprises a fixing mechanism, the top of the fixing mechanism is uniformly provided with a mounting block, a dilating ring is arranged on the inner wall of the mounting block, a retraction mechanism is arranged on the top of the mounting block, a blood cleaning mechanism is arranged on the outer wall of the dilating ring, an extension rod is arranged on the opposite side of the dilating ring, and the inner wall of a locking buckle is sleeved with the outer wall of the extension rod. The end of the dilating assembly is in contact with the incision of the patient through the arrangement of the retraction mechanism, the width of the dilating assembly is determined according to the size of the incision of the patient, the dilating assembly is suitable for various types of operations, the size of the contact position with the incision is flexibly controlled according to the length of the incision, compared with manual operation, the dilating is more convenient and stable by using mechanical means, and the number of medical staff required is reduced.

In order to provide an intraocular lens pushing method and intraocular lens pushing device that can fully curl an intraocular lens, specifically, fully curl the optical part of the intraocular lens, and the supporting part is easy to unfold and position, so that the intraocular lens can be implanted into the eyeball from a smaller incision, thereby reducing the astigmatism and infection problems that may occur after the operation. The present invention provides an intraocular lens pushing method and intraocular lens pushing device, the intraocular lens includes an optical part, a first supporting part and a second supporting part that extend outward and are symmetrically arranged in the circumference of the optical part, respectively, the intraocular lens pushing method includes: an optical part pre-pressing step, applying pressure to the optical part to make its center concave and deformed; a supporting part pushing step, pushing the first supporting part toward the optical part, so that a part of the first supporting part abuts against the optical part; an optical part curling step, in a pushing direction perpendicular to the supporting part pushing step, curling the two side parts of the optical part oppositely.