52 results about "Tendon sheath" patented technology

A master-slave robotic endoscopy system includes a flexible primary endoscope probe having at least one tool channel for carrying a tendon-sheath driven robot arm and corresponding end effector, and a secondary endoscope probe channel for carrying an imaging endoscope. The imaging endoscope provides enhanced image capture range relative to a distal end of the primary endoscope probe by way of a secondary endoscope probe channel distal opening proximally offset from the primary endoscope probe distal end; a ramp structure distally carried by the primary endoscope probe; and/or one or more actuatable distal imaging endoscope regions. Robot arms can include joint primitives that enable robot arm/end effector manipulation in accordance with intended degrees of freedom. A set of quick connect/disconnect interfaces couple an actuation controller to one or more actuation assemblies insertable into the tool channel(s), where each actuation assembly includes tendon-sheath elements, a robot arm, and its corresponding end effector.

An apparatus and method are disclosed for release of a tendon sheath using a rasp tool and an endoscopic cutting tool. The rasp tool has a body supporting a probe with a rasp surface at one end of the probe for removing soft tissue adhering to the tendon sheath after insertion of the probe into a pocket formed above the tendon sheath. The body, rasp probe and rasp surface are formed in one piece and may be mounted removably on an endoscope. The endoscopic cutting tool has a probe with a blade at one end, the blade being extendable by operation of a trigger after insertion of the probe into the pocket, the blade being operable to cut the tendon sheath by pulling the tool out of the pocket with the blade extended. The trigger is part of a pistol grip assembly that is mounted on the cutting blade probe and endoscope so that it can be rotated about the axis of the cutting blade probe. The endoscope illumination can be provided with ultraviolet light to make visible objects not visible otherwise.

A dual syringe assembly that allows for two liquids to be sequentially injected through the same needle. By way of example, one syringe may contain a steroid and the other syringe may hold an anesthetic. The syringes are coupled to a needle by a connector. The needle can be inserted into a hand by medical personnel and manipulated until placed in contact with a tendon sheath. The steroid can be administered by depressing a plunger of the syringe that contains the steroid. The anesthetic can then be injected into the hand by depressing the plunger of the other syringe. The needle is then pulled out of the hand. The injection of the anesthetic flushes steroid from the needle and the Y-connector so that steroid is not ejected onto surrounding tissue when the needle is removed from the hand.

A device and method for minimally invasive tendon sheath release. The device and method that enables a surgeon to cut (“open”) a pulley that is obstructing a nodule and keeping a tendon from sliding smoothly. A ball tipped guide probe goes through a small incision and is used to find the edge of the pulley. Once found, the probe is guided to an end of the pulley. After proper position is assured, a cutting blade is deployed by pushing and holding a blade deployment switch. This deploys the sharp end of a retractable cutting shaft beyond the sheath. The entire device is then pushed or pulled using the device handle along the pulley until the pulley is completely released or where resistance is no longer felt. In an alternate embodiment, the cutting blade is static.

An artificial hand with multiple functions, no error operation and no complication is composed of such artificial units as finger bones, metacarpal bones, ulna, radius, muscle tendons, tendon sheaths, slide mechanism, muscles and skin. It can be connected to the crippled end of human radius by screw and its artificial muscle tendons can be linked with relative ones of human body by stitch.

The invention discloses a 32-degree-of-freedom bionic compliant internal skeleton dexterous hand. The dexterous hand uses an anatomy structure of a human hand for reference, a hand portion is of an inner skeleton type, and the outer surface is suitable for being covered with a flexible bionic skin layer with a certain thickness; a joint adopts double-driver antagonistic type drive, so that the compliance operation and the robustness are both taken into account; a tendon coupling piece and a tendon sheath fixing piece are adopted, so that the hand portion and a wrist portion can be easily disassembled and assembled; metacarpophalangeal joints of five fingers all have convolution degrees of freedom so that the fingers can automatically and compliantly adapt to a complex curved surface; a carpometacarpal joint of a thumb has two degrees of freedom of bending-stretching and annular rotation, a metacarpophalangeal joint of the thumb has the degree of freedom of side sway, carpometacarpal joints of a ring finger and a small finger have degrees of freedom of bending-stretching and inward retracting-outward stretching, an opposing action can be performed so that complex pinching operationcan be executed; the axes of all the degrees of freedom of the multi-degree-of-freedom joint are orthogonal, so that control and motion planning calculation is facilitated; and the dexterous hand is very suitable for compliantly operating objects of complex shapes, so that production, disassembly, assembly and maintenance are facilitated.

The invention discloses a large big-tolerance passive mildly-capturing spatial end effector based on tendon sheath drive, relates to a large mechanical arm spatial end effector, and particularly relates to a large big-tolerance passive mildly-capturing spatial end effector based on tendon sheath drive. The end effector solves the problems that the existing docking capturing mechanism has small capturing tolerance and the mechanical arm can not conduct soft capturing. The end effector comprises a capturing device and a capturing interface device, wherein the capturing device is installed at the tail end of the mechanical arm wrist of a large spacecraft; the capturing interface device is installed on a payload bay; and after the three wire ropes of the capturing link capture the capturing cone of the capturing interface device, the dragging link pulls the whole capturing link to move downwards and finish capturing. The end effector is applied to the aerospace field.

To provide a surgical instrument for performing incision that enables surgery to be performed safely and easily, with minimal invasiveness and a reduced risk of damaging a tissue, such as a tendon, nerve, or blood vessel.

The surgical instrument for performing incision includes incision reception means that receives an incision portion of a tendon sheath and an aponeurotic membrane, guide fixture means that fixes the incision reception means outside a body, and incision means that performs incision under guidance of the guide fixture means, the instrument being configured to incise a tendon sheath and an aponeurotic membrane by pressing and moving the incision means against the incision reception means. This surgical instrument for performing incision enables a tendon sheath and an aponeurotic membrane to be incised safely without significantly incising the skin or subcutaneous tissue, and makes it possible to conduct surgery percutaneously at an extremely low level of invasion.

The invention discloses a tendon transmission system with a composite tendon sheath and tendon sheath restraining elements. The transmission system references tendons, tendon sheathes and ligament tissues of human hands and provides a composite tendon sheath structure composed of an inner tendon sheath and an outer tendon sheath, so that the friction between the tendon and the tendon sheath can beeffectively reduced, and the side cutting force of the tendon is prevented from damaging the tendon sheath; an I-shaped tendon sheath restraining element, an II-shaped tendon sheath restraining element, an III-shaped tendon sheath restraining element and an IV-shaped tendon sheath restraining element are proposed, so that position and the range of motion of the tendon sheath can be flexibly constrained and cannot be removed, the movement of each joint spanned by the tendon sheath can be decoupled from each other, and certain anti-pressure and impact-resistant protection is provided for the tendon sheath. The transmission system has the advantages that the transmission system is simple and reliable in structure, high in service life, and easy to maintain, and has certain flexibility and the like, and is particularly suitable for being applied to bionic dexterous hands, bionic mechanical feet or other robotic mechanisms requiring tendon transmission.

The invention provides tendon guide forceps. The tendon guide forceps comprise forceps for clamping a fractured tendon, the tail ends of the forceps are connected with one end of a traction tube, a handle for controlling the forceps to be opened and closed is arranged at the other end of the traction tube, and when the forceps are closed, the front end of a fixed forceps body forming the forceps is located in front of the front end of a movable forceps body. The two forceps bodies which are staggered front and back enable the forceps to move forwards for a certain distance when reaching the tendon, so that the front end of the fixed forceps body is inserted into a gap between the tendon and the tendon sheath; at the moment, an operator can obtain a clear hand feeling to judge that the fixed forceps body is in place, then the forceps are opened through the handle to continue to move forwards to enable the tendon to be located between the fixed forceps body and the movable forceps body,and at the moment, the closed forceps bite the tendon to lead the tendon out of the tendon sheath. In this way, the tendon can be guided quickly and accurately, medical staff can determine the state of the forceps through the hand feeling in the operation process, repeated attempts are not needed, the searching and clamping frequency is reduced, the operation time is shortened, and harm to a patient is reduced.

The invention discloses an Achilles tendon stapler, which includes a guide, the guide includes a bracket, a first inner arm and a second inner arm, the bracket is U-shaped, and includes a first outer arm and a second outer arm oppositely arranged, the first An outer arm and a second outer arm have free ends respectively, the free end of the first outer arm and the free end of the second outer arm are used to insert between the Achilles tendon and the tendon sheath, the free end of the first outer arm and the second outer arm The free ends of the arms are respectively located at the same end in the length direction of the bracket, the first inner arm and the second inner arm are located between the first outer arm and the second outer arm, the first inner arm and the first outer arm are arranged oppositely, and the second inner arm It is arranged opposite to the second outer arm, and the first inner arm and the second inner arm can move in opposite directions along the width direction of the bracket, thereby realizing the clamping or loosening of the Achilles tendon by the first inner arm and the second inner arm. open.

A tendo calcaneus suturing instrument, comprising: a first support and a second support that are of a U-shaped structure, a distance adjustment device, a first guide sleeve, a second guide sleeve, a first positioning tube, a second positioning tube and a tendo sheath cutter. An outer arm and an inner arm of the first support, and an outer arm and an inner arm of the second support are respectively provided with a first positioning hole, a first guide hole, a second positioning hole and a second guide hole; and the first guide sleeve/the second guide sleeve is fixed by means of the first positioning hole/the second positioning hole and is matched with the first guide hole/the second guide hole. The first positioning tube/the second positioning tube provided with a through hole is arranged in the first guide sleeve/the second positioning sleeve or the tendo sheath cutter is arranged in the first guide sleeve and/or the second guide sleeve in a matching manner. The tendo calcaneus suturing instrument can simplify the surgical procedure, improve the surgical effect and relieve pains of a patient.

The invention relates to the technical field of medical instruments, in particular to an instrument for treating the cyst of the tendon sheath. The instrument comprises a suction tube and a dosing tube, the suction tube and the dosing tube are fixedly connected in parallel, and a cannula is arranged at the head end of the suction tube; a liquid discharging tube is arranged on the side wall of the head end of the suction tube, open-close structures are arranged in the cannula and the liquid discharging tube, and a sealing cover is in screw joint to the tail end of the dosing tube. According to the instrument, a dual-channel puncture needle is arranged at the free end of a liquid suction tube, a connection tube is communicated with a channel in the dual-channel puncture needle, the head ends of a first piston rod and a second piston rod are correspondingly located in the suction tube and the dosing tube respectively, and the first piston rod is provided with a first rubber plug; a second piston rod is provided with a second rubber plug, the other end of the first piston rod is located outside the suction tube, the other end of the second piston rod penetrates through the sealing cover and extends to the exterior of the dosing tube, and the other end of the first piston rod and the other end of the second piston rod are provided with the same handle. According to the instrument, the area of a wound is greatly reduced, infection is avoided, and the surgery efficiency is also improved.

The invention discloses a tenosynovitis scalpel component, including a knife body, in hollow tube shape; a knife head, fixedly arranged on the top of the knife body, wherein the knife head has a firstblade and a knife back, and the first blade is arranged on the side of the knife head near the knife body and the knife back is arranged on the knife head far from the knife body; a protective innercore, wherein the outer diameter of the protective inner core is no larger than the inner diameter of the knife body; and the protective inner core is arranged in the knife body and can move along thedirection defined by the knife body. One end of the protective inner core has a holding groove to accommodate the first blade. The tenosynovitis scalpel componentcan not only achieve minimally invasive release of tendon sheath, but also protect the surrounding soft tissue to the maximum extent in the operation process, avoiding serious injury of vascular and nerve. In addition, the tenosynovitisscalpel component is simple to make and easy to operate, and can effectively improve the defects in the current 'blindness' operation of a needle knife.

An arthroscopic surgery method for ankle impingement of the embodiment removes a posterior process of talus from the portal formed in the position specified beforehand by vibrating ultrasonically of an ultrasonic treatment tool which inserted and inserted the ultrasonic treatment tool to the posterior process of talus and a tendon sheath of flexor hallucis longus muscle tendon, and deletes the tendon sheath of flexor hallucis longus muscle tendon by the ultrasonic treatment tool used for deleting the posterior process of talus.

An object is to provide a dried amniotic membrane that promotes regeneration of a tendon and a tendon sheath when a tendon injury has occurred and that reduces loss of the motor function of fingers of upper limbs and lower limbs due to tendon adhesion as a novel regeneration material. As a means for resolution, a dry amniotic membrane is produced by performing a specific drying treatment, that is, during a depressurization operation in which a fresh amniotic membrane placed in a treatment tank is continuously heated by an infrared heater provided in the treatment tank, and the inside of the treatment tank is brought into a depressurized state; and a pressure recovery operation in which the pressure of the inside of the treatment tank in a depressurized state is raised slightly toward the atmospheric pressure, drying is performed while applying energy to water molecules present in the amniotic membrane by irradiating the fresh amniotic membrane with a microwave also from a microwave generator provided in the treatment tank. The dried amniotic membrane retaining of the cell and tissue structures by repeating the treatment of drying a plurality of times promotes regeneration of the motor function of fingers of upper limbs and lower limbs after tendon suture surgery and is useful as a regeneration material.