110 results about "Tissue fixing" patented technology

Surgical constructs, assemblies, kits and methods of tissue fixation are disclosed. Soft tissue augmentation is conducted with a simple device that allows a surgeon to augment poor tissue in a most expedient and straightforward manner. The device includes an implant in the form of a molded part which has one or more barbs that are angled generally in a retrograde fashion. The implant is affixed to the graft desired to be augmented onto patient's tissue. The surgeon needs only “hook” the distal portion of the graft / implant device into patient's tissue and pull to fix the graft in contact.

An adjustable construct for fixation of a tendon or ligament graft in a tunnel. The construct comprises a flexible, adjustable loop connected to tissue (for example, graft, ligament or tendon). The adjustable loop may be integrated with an additional tissue supporting device (for example, a wedge or a plug). The tissue is secured within a bone socket / tunnel by adjusting the length of the flexible adjustable loop.

The embodiment of the invention provides a skin redness test measuring instrument used for judging whether limb tail ends are ischemic or not, and relates to the technical field of medical instruments. The upper surface of the limb placing plate comprises a left end, a right end, an upper end and a lower end; the left end and the right end of the air bag belt are connected to the left end and the right end of the limb placing plate respectively; a limb space for placing a limb is formed between the air bag belt and the limb placing plate, and the limb space is provided with an opening into which the limb extends; the opening is positioned at the upper end or the lower end of the limb placing plate; the limb tail end comprises fingers and / or toes; a local tissue fixer for separating adjacent fingers or toes is arranged in the limb space; the local tissue fixator is arranged at the position, close to the metacarpophalangeal joint, of the finger or the toe, and compression of the air bag belt on the tail end of the limb is not disturbed by the arrangement of the local tissue fixator. And the detection box is connected with the limb placing plate and is used for sensing the color of the skin of the limb placed in the limb space.

The utility model discloses a multi-layer tissue thickness detection device convenient to use, which comprises a support frame and a distance measuring instrument arranged on the support frame, the inner wall of the distance measuring instrument is connected with a distance measuring rod in a sliding manner, the top of the distance measuring rod is provided with a pressing grip, and the pressing grip is arranged on the outer wall of the distance measuring instrument through a torsion spring shaft. A tissue fixing assembly is installed on the supporting frame and comprises a supporting column, a rotating plate, a through groove, an iron alloy block, a movable rod and a magnet block, the outer wall of the supporting frame is fixedly connected with the supporting column, the top end of the supporting column is rotationally connected with the rotating plate, the through groove is formed in the rotating plate, and the iron alloy block is fixedly connected with the outer wall of the supporting frame. The inner wall of the rotating plate is slidably connected with a movable rod; according to the paper towel detection device, paper towels needing to be detected can be preliminarily fixed through the paper towel fixing assembly, so that the problems that the paper towels fall off from the detection device and the detection efficiency is influenced are solved, the smooth measurement process is ensured, and the detection accuracy and applicability are improved.

A tissue holder assembly includes: a base comprising a bottom member, a central hub extending upwardly from the bottom member, and a circumferential sidewall extending upwardly from the bottom member radially spaced apart from the hub, the circumferential sidewall surrounding the hub and defining an interior region configured for accommodating a cylindrical tissue holder; the base further comprising a raised platform spaced upwardly apart from the bottom member, the central hub extending through a central opening of the platform and configured for supporting the tissue holder; the bottom member, the hub, and the circumferential sidewall collectively defining an annular fluid channel underlying the platform; wherein the fluid channel extends around the hub from an opening in the platform to a fluid exit port in the circumferential sidewall; the base further comprising a flow comb underlying the platform opening and extending into the fluid channel.

The present disclosure relates to a heat-conducting needle for acupuncture in which heat conduction occurs only in the needle body area involved in the treatment during oriental medicine treatment and includes a needle body formed of a metal material with relatively high conductivity to be inserted into human tissue, a needle grip fixed to a rear end of the needle body to form a grip for procedure, and a non-conductive holding cover detachably coupled to the needle grip to cover the needle grip or covering the needle grip together with a portion of the needle grip and made of a material having relatively low conductivity.

The utility model discloses a kind of soft tissue fixed band line anchor, belong to medical anchor technical field, anchor body includes anchor rod, the one end of anchor rod is provided with nail tip, the surface of anchor rod and nail tip is provided with threaded portion, the other end of anchor rod is opened with antiskid groove, the bottom of antiskid groove is opened with connecting groove, the inner wall of connecting groove is threadedly connected with line body positioning assembly, one end of line body positioning assembly is movably connected with suture body, the soft tissue fixed band line anchor, through the line body positioning assembly set, can be fixed after anchor body, then the threading of suture is completed after outside, and anchor body connection, greatly improve the threading convenience of suture, and through the connecting groove and the avoidance slot of anchor body setting, not only facilitate the connection of line body positioning assembly, and greatly reduce the processing difficulty of anchor.

A fixation implant includes a head, a shank and a distal tip, and one or more of the head, shank and distal tip may be cannulated. The shank includes a threaded ingrowth portion extending from the head to the tapered distal tip that includes external threads, and at least one open network body extending along the length of the ingrowth portion. The open network body selected from one or a combination of a helix, an arrangement of trusses, a scaffold of open and interconnected pores, a porous framework of random open and interconnected pores, and combinations of these.

A medical device for approximating and securing tissue without requiring knots includes a lock-head, a strap section, distal protuberance, and a leader section. The device also includes a transition section between the leader and the strap section and a stiffening section proximal to the protuberance. The leader section is used to draw the strap section into the body through small apertures in tissue and the transition section provides a gradual transition in stiffness and size between the leader and the strap section.

The invention relates to a core biopsy needle (1) for obtaining a tissue sample comprising a hollow outer needle (10) extending along a longitudinal axis (L), and an inner needle (20), which is at least partially arranged or arrangeable within said outer needle along said longitudinal axis (L), wherein said inner needle (20) comprises at least one tissue-holding surface (21), wherein said tissue-holding surface (21) is adapted such that a tissue (3) adheres to the at least one tissue-holding surface (21), when the core biopsy needle (1) is inserted into the tissue (3).

The present technology is generally directed to tissue-pexy systems including a probe and a suture thrower removably coupleable to the probe. The probe can be partially inserted into a body cavity of a patient. The suture thrower can have a tissue-receiving portion and a needle. The tissue-receiving portion can include a first concave surface defining a first recess for receiving a first tissue portion and a second concave surface defining a second recess for receiving a second tissue portion. The needle can be movable between a retracted state and an extended state. The needle can be configured to pierce through the first and second tissue portions when moving from the retracted state to the extended state. Also, the needle can be configured to pull a suture device through the first and second tissue portions when moving from the extended state to the retracted state.

An anchor assembly secures a tissue to a bone with a repair strand. The anchor assembly includes an anchor sleeve having a lumen and an inner thread, an anchor tip having an opening, and an anchor insert inserted into the lumen of the anchor sleeve. The anchor sleeve is inserted into a bone socket in the bone. The opening receives the repair strand. The anchor insert has an outer thread configured to engage the inner thread of the anchor sleeve, where the anchor insert rotates relative to the anchor tip while being inserted into the anchor sleeve. The anchor assembly is used in a method of securing tissue to bone.

The application relates to the technical field of implant denture repair of jaw bone reconstruction patients, and discloses a preparation method, equipment and medium of a soft tissue fixing and forming device, the method comprising the following steps: acquiring CT data and scanning data; fitting based on the CT data and the scanning data to determine the thickness of the surface soft tissue of the alveolar bone or the reconstructed jaw bone; then generating a virtual implant based on the implanted implant of the patient, obtaining the three-dimensional positions of the implants based on the virtual implant and the implant CT, so as to generate a virtual screw retention abutment according to the thickness of the surface soft tissue of the alveolar bone or the reconstructed jaw bone, and determine the gingival penetration position of the virtual screw retention abutment; and finally constructing the soft tissue fixing and forming device for jaw bone defect implantation based on the gingival penetration position, the three-dimensional positions of the implants and the scanning data. The soft tissue fixing and forming device for jaw bone defect implantation designed and prepared by the application has sufficient retention force, is not affected by lip and cheek movement, is comfortable to wear, is easy to clean and has a wider indication.

The invention belongs to the technical field of medical instruments, and provides a tissue cutting tool which comprises a cutting tool shell, and a cutting device, a camera device and a clamping device are arranged on the cutting tool shell. A to-be-cut tissue part is fixed through the tissue fixing pipe, the driving mechanism drives the linkage part to achieve movement and rotation of the cutting knife body relative to the to-be-cut tissue part, so that cutting operation of the to-be-cut tissue part is achieved, meanwhile, the camera device is further arranged, a user can conveniently achieve visual operation, and the use experience of the user is improved. The clamping device can facilitate the user to adjust the position of the camera device, so that tissue cutting is completed in a stable, accurate and efficient video environment.

Surgical constructs, assemblies, kits and methods of tissue fixation are disclosed. A surgical guide includes a cannula with a distal section having a proximal slot, a distal slot, and a notch opening at the distal end. The surgical guide is configured to securely hold tissue while a penetrating device (such as a suture passer) slidingly and removably passes through the surgical guide to penetrate tissue and retrieve suture.

This invention discloses a pre-placed adjustable hernia repair patch and its preparation method, relating to the field of medical device technology. The patch body is a polypropylene woven mesh with a weight of less than 50 g / m². The polypropylene woven mesh has a double-layer gradient structure with different densities on both sides. This pre-placed adjustable hernia repair patch uses a double-layer gradient structure of the same woven mesh. The outer layer has large pores (80-300 μm) to facilitate fibroblast ingrowth and tissue fixation, while the inner layer has small pores (15-80 μm) to form a physical barrier, effectively inhibiting visceral adhesions. It addresses both fixation and anti-adhesion needs. Temporary fixation is achieved through sliding PLGA fixation pins, pre-drilled holes, and elastic rings. The fixation pins are available in various lengths, and the elastic rings enable temporary fixation and position adjustment. Blue marking lines facilitate directional identification, and barium sulfate contrast markers aid in intraoperative positioning and postoperative follow-up.

The utility model provides a tissue specimen fixing device which comprises clamping pieces, the clamping pieces are bent to form a clamping space to clamp tissue, or two sets of clamping pieces are arranged, and the two sets of clamping pieces are located on the two sides of the tissue respectively and used for clamping the tissue; the fixing mechanism is installed on the clamping pieces and used for fixing the clamping pieces on the two sides of the tissue, the tissue is clamped and fixed through the clamping pieces, the clamping pieces play a role in shaping, the tissue is flattened, cells of the tissue are made to be relatively compact, the slicing effect of the soaked tissue is improved, and the tissue is not prone to damage. The fixing mechanism is used for fixing the clamping pieces, the tissue is prevented from falling off from a clamping space formed by the clamping pieces, and the stability of tissue fixing is improved; by using the fixing mechanism and the clamping pieces, the weight of the tissue can be increased, the tissue is completely soaked in the soaking liquid, the problem of tissue floating is solved, and the tissue soaking effect is improved.

The utility model discloses an automatic tissue stationary liquid distribution instrument which comprises a machine body, a storage tank is placed on the lower portion in the machine body, the output end of the storage tank is communicated with a guide pipe, the guide pipe extends to the upper portion in the machine body, a partition plate is installed on the upper portion in the machine body, and the partition plate is connected with the storage tank. The automatic tissue stationary liquid distribution instrument further comprises a buffer device and a control device, wherein the buffer device is mounted at the lower part in the machine body; the fixing devices are arranged on the two sides of the buffering device; and the weighing device is mounted at the top of the partition plate. The utility model relates to the technical field of tissue stationary liquid, and the automatic tissue stationary liquid distributor can weigh the distribution quantity in real time during distribution through the matching of the machine body, the weighing device and the shielding device, so that the accuracy of the distribution quantity can be ensured, and shielding protection can be performed during distribution, so that the distribution quantity is more accurate. The tissue stationary liquid is prevented from being splashed into the surrounding air, so that the safety during distribution can be ensured.

This invention discloses a tissue repair system for securing a first tissue to a second tissue. The tissue repair system includes an instrument having a handle, a shaft extending distally from the handle, and a housing having a locking cap. A tissue anchor is disposed at the distal end of the shaft and is operatively coupled to an actuating member of the handle via a deployment member. The actuating member is configured to actuate the deployment member, deploying the tissue anchor and thereby coupling the tissue anchor to the first tissue. The system also includes a repair member for coupling the tissue anchor to the second tissue. The repair member has a first end operatively coupled to the tissue anchor and a second end attached to at least one coupling device. The second end of the repair member and the coupling device are housed within the instrument housing. Actuation of the actuating member is configured to unlock the housing cap.

The application relates to a surgical rotary cutting system, comprising a rotary puncture device and a cutter device; the rotary puncture device comprises a puncture rod and a tissue fixing head arranged at one end of the puncture rod, the tissue fixing head is used for fixedly connecting with target tissue, and the puncture rod is used for driving the target tissue to rotate relative to the cutter device through the tissue fixing head; the cutter device comprises a cutting head, and the cutting head is used for cutting the target tissue into a continuous long strip structure. When the target tissue rotates, the cutter device which keeps the position unchanged can continuously cut the target tissue, so that the target tissue is cut into the continuous long strip structure. Finally, the long strip target tissue can be clamped to the outside of the abdominal wall at any position of the long strip structure through clamps, so that the target tissue does not need to be repeatedly clamped by the clamps for multiple times, and the operation is simple and efficient.

This disclosure describes embodiments of an anchor with a body configured to expand radially outwardly along its entire length. The anchor includes, but is not limited to, a cylindrical body having a longitudinal axis and an inner surface and an outer surface, the inner surface defining a central bore, the cylindrical body having a slot exposing the central bore, the slot having a helical path around the longitudinal axis, wherein the slot is configured to expand so that the cylindrical body changes from a first state to a second state in response to pressure on the inner surface, and wherein an outer diameter of cylindrical body in the second state is larger than the outer diameter of the cylindrical body in the first state.

The utility model relates to the related technical field of tissue stationary liquid, in particular to an anti-adhesion tissue stationary liquid treatment container which comprises a wide-mouth bottle, an anti-adhesion net plate is arranged in the wide-mouth bottle, and a sealing assembly is arranged at a bottle opening of the wide-mouth bottle. According to the anti-adhesion tissue stationary liquid treatment container, a threaded connection structure composed of the threaded groove and the threaded block provides a basic sealing and fastening function, the thread pitch and thread form integrating degree is high, strong axial pressure can be generated in the screwing process, the sealing cover is promoted to be tightly attached to the extending bottle opening, stationary liquid volatilization channels are greatly reduced, and the sealing effect is improved. A limiting locking structure composed of a limiting block, a limiting hole, a telescopic spring and the like is used for reinforcing and supplementing threaded connection, the connecting strength of the sealing cover and the extending bottle opening is further enhanced, the sealing cover can be effectively prevented from loosening when the container is vibrated and collided by external force or slight pressure change is generated due to chemical reaction of stationary liquid in the container, and the service life of the sealing cover is prolonged. And the sealing long-term effect is ensured.

The invention discloses a biological sample whole RNA normal-temperature long-term preservative as well as a preparation method and application thereof, and belongs to the technical field of biological medicines. The preservative comprises the following components: a tissue fixing agent, a tissue penetrating agent, a reactive biological sample encapsulating agent, a silicification blocking agent, a pH regulator, an ion concentration regulator and water. The preservative can be applied to bacteria, such as escherichia coli and staphylococcus aureus; a cell, such as an HEK293 cell, an ID8 cell; tissues such as mouse liver tissues and human tumor tissues; organs such as kidneys and hearts of small animals; the whole RNA of a complete organism, such as earthworms, fruit flies and other biological samples with different sizes can be stored at normal temperature for a long time, so that the RNA extraction efficiency and quality can be ensured, the method is particularly suitable for normal-temperature transfer and long-term storage of field collected samples and clinical submitted samples, and the RNA extraction efficiency and quality in subsequent molecular experiments can be ensured; the method is of great significance to molecular biology research and clinical diagnosis.

Surgical constructs, assemblies, kits and methods of tissue fixation are disclosed. A surgical instrument combines two separate devices into a single device. A surgical instrument combines a punch and a trocar / obturator into a single, integrated, combined device. A surgical punch obturator instrument can be a fixed length device. A surgical punch obturator instrument can be a spring-loaded device. A surgical punch obturator instrument can be a lever-arm device. A surgical punch obturator instrument can be provided with a soft stop.

An anchor assembly secures a tissue to a bone with a repair strand. The anchor assembly includes an anchor sleeve having a lumen and an inner thread, an anchor tip having an opening, and an anchor insert inserted into the lumen of the anchor sleeve. The anchor sleeve is inserted into a bone socket in the bone. The opening receives the repair strand. The anchor insert has an outer thread configured to engage the inner thread of the anchor sleeve, where the anchor insert rotates relative to the anchor tip while being inserted into the anchor sleeve. The anchor assembly is used in a method of securing tissue to bone.

Knotless constructs and methods of tissue repairs are disclosed herein. A suture ring can be formed of suture with a hollow core. A suture ring can be folded to a “S”, “L′”, or “W” configuration. A suture ring can be loaded with a tensionable mechanism to assist in knotless, tensionable tissue repairs.

A composition comprising a pre-polymer having a polymeric backbone comprising a polymeric unit of the formula (-A-B-)n, wherein A is derived from a substituted or unsubstituted polyol or mixture thereof and B is derived from a substituted or unsubstituted polyacid or mixture thereof, and n is an integer greater than 1, is disclosed. The composition may be used in a method of fixing to or sealing tissue, for fixing a medical device to the surface of a tissue, or for preparing a printing resin.