64 results about "Tissue Part" patented technology

The invention relates to the technical field of crop molecular genetic markers, and discloses an InDel molecular marker of avena nuda and application thereof.The molecular marker is a group of 314bp deletion variation and 2bp insertion variation in the 610439484-610440026 interval of the 5C chromosome position of a reference genome of an avena nuda variety OT3098, the nucleotide sequence of the deletion variation is shown as SEQ ID NO.1, the nucleotide sequence of the insertion variation is shown as SEQ ID NO.2, and the nucleotide sequence of the insertion variation is shown as SEQ ID NO.3. The nucleotide sequence of the insertion variation is 5 '-AA-3'. The molecular marker provided by the invention can realize stable detection in agarose gel electrophoresis by combining a specific primer pair (SEQ ID NO.2-3) with an optimized touchdown PCR (Polymerase Chain Reaction) program, has the advantage of being not influenced by a tissue part and a growth period, and provides an efficient and reliable technical means for oat germplasm identification, seed purity detection and molecular breeding.

A centrally coordinated and synchronized robotic system for robotic sewing procedures, such as bilateral spinal robotic sewing procedures, includes multiple robotic arms and a controller that can manipulate the robotic arms to position tools, end effectors, cameras, or navigation elements, such as a suturing needle and a marker or label for use in a robotic sewing procedure. The markers or labels may be placed on different tissue portions, including for example skin and surgically exposed tissue, to help guide the robotic arms and deployment of the markers to perform bilateral robotic sewing.

A bone displacement system includes an anchoring portion, a tool engaging portion, a compression distraction mechanism, a lateral body and a distal body. The anchoring portion has an aperture for receiving a wire to connect the anchoring portion to a proximal bone. The anchoring portion is connectable to a downwardly depending member for holding a tissue portion. The tool engaging portion is connected to the anchoring portion and is configured to connect a tool thereto. The compression-distraction mechanism is connected to the anchoring portion. The lateral body is connected to the compression-distraction mechanism and engageable with a lateral bone. The distal body is connected to the compression-distraction mechanism. The distal body has an aperture for receiving a wire to connect the distal body to a distal bone. The compression-distraction mechanism is configured to move the anchoring portion relative to the distal body.

A device for tissue shaving includes an elongated outer cannula having a tissue pinching distal end, an elongated inner shaft extending through the cannula and having a tissue shaver at a distal end. The tissue pinching distal end of the outer cannula is configured to pinch a portion of the tissue and the tissue shaver of the inner shaft is configured to be rotated and cut the pinched tissue portion via a shearing action.

The application discloses a bladder tumor specimen extractor which comprises an adjusting transmission assembly capable of controlling preliminary cutting, a separating assembly capable of separating a tissue part and a liquid part of the bladder tumor and an operating handle. The application belongs to the technical field of bladder tumor surgery. When the bladder tumor temporarily stays on a tissue liquid passing layer, the removed bladder tumor can be punctured by a plurality of groups of puncture heads, so that the tissue part of the bladder tumor is blocked by the tissue liquid passing layer, and the tissue liquid and the plasma part of the bladder tumor can pass through the tissue liquid passing layer and enter a liquid storage bag. After sampling is completed, medical staff can take out the liquid storage bag to sample the tissue liquid and the plasma part of the bladder tumor, and the tissue part of the bladder tumor can be sampled from the tissue liquid passing layer. The application provides a brand-new bladder tumor sampling experience, greatly reduces the possibility of tissue liquid and plasma remaining in the bladder and brings convenience to medical staff.

The novel pelvic and abdominal cavity drainage tube comprises a main pipeline, the main pipeline comprises a suction section and a drainage section which are connected with each other, a through suction channel is formed in the suction section in the length direction, a main channel and a plurality of auxiliary channels are formed in the drainage section in the circumferential direction, and the main channel and the auxiliary channels are through in the length direction of the suction section; the projection area of the main channel is larger than that of the auxiliary channel, and strip-shaped openings are formed in the side walls, corresponding to the drainage section, of the main channel and the auxiliary channel. The auxiliary pipeline is circumferentially provided with a plurality of drainage grooves, the outer wall of the drainage section is provided with a connecting hole corresponding to the main channel, one end of the auxiliary pipeline is inserted into the main channel along the connecting hole to enable the drainage grooves to be communicated with the main channel, drainage of the groove area of the tissue part is achieved through the auxiliary pipeline, and therefore the overall drainage range of the drainage tube is enlarged; a better drainage effect is obtained; the overall size can be reduced through connection of the auxiliary pipeline and the main channel, and therefore the wound size of the human body is reduced.

The invention discloses a cigar tobacco tissue thickness measuring method and a cutting device, and relates to the technical field of tobacco tissue thickness measurement, and the method comprises the following steps: S1, carrying out screening treatment before cigar tobacco and rootstock cutting; s2, device cutting module selection and parameter setting work; s3, tobacco plant rhizome and leaf tissue structure slices are cut; s4, tissue slice electron microscope scanning and image selection work; and S5, carrying out tissue slice image part identification and division and average thickness calculation. The method solves the problems that in the prior art, in thickness measurement of different tissue structures of tobacco leaf sections, most methods or leaf surface image analysis systems are used for estimating and reading scale scales, and due to the fact that thickness distribution of tissue parts of leaves is not uniform and consistent, a traditional scale measurement method is large in error due to different selected measurement point positions, and the measurement accuracy is poor. And the average thickness of each part cannot be quickly and accurately measured.

The present disclosure relates to instruments, implant systems, and methods for joining bone and / or tissue portions. The instrument includes a handle portion; an inserter portion comprising an insertion portion and a tip portion; a guide portion comprising a medial end component and a distal end component, the guide portion extending from a distal end portion of the handle portion to a bone engagement end of the inserter portion; a passageway extending through the inserter portion from the distal end of the handle portion to the bone engagement end of the inserter portion; and a hole that extends from an exterior surface of the handle portion and the guide portion to the passageway, wherein the insertion portion and the tip portion of the inserter portion are positioned past the distal end component of the guide portion when the handle portion, the inserter portion, and the guide portion are mated.

Implant systems and related methods for joining bone and / or tissue portions is disclosed. The implant systems include a first flexible anchor tube comprising a first annular side wall defining a first internal cavity, a first longitudinal end and a second longitudinal end, and a second flexible anchor tube comprising a second annular side wall defining a second internal cavity, a first longitudinal end and a second longitudinal end. The implant systems also comprise at least one suture that passes through the first and second side walls a plurality of times. The at least one suture extends along a pattern that prevents the second anchor tube from translating along the at least one suture and allows the first anchor tube to translate along the at least one suture toward the second anchor tube when first and second end portions of the at least one suture are tensioned.

An implantable energized medical device configured to be held in position by a tissue portion of a patient, the medical device comprising: a first portion configured to be placed on a first side of the tissue portion, the first portion having a first cross-sectional area in a first plane and comprising a first surface configured to face a first tissue surface of the first side of the tissue portion, a second portion configured to be placed on a second side of the tissue portion, the second side opposing the first side, the second portion having a second cross-sectional area in a second plane and comprising a second surface configured to engage a second tissue surface of the second side of the tissue portion, and a connecting portion configured to be placed through a hole in the tissue portion extending between the first and second sides of the tissue portion, the connecting portion having a third cross-sectional area in a third plane and a third surface configured to engage the first tissue surface of the first side of the tissue portion, wherein the connecting portion is configured to connect the first portion to the second portion, wherein: the first, second, and third planes are parallel to each other, and the third cross-sectional area is smaller than the first and second cross-sectional areas, such that the first portion, second portion and connecting portion are prevented from travelling through the hole in the tissue portion in a direction perpendicular to the first, second and third planes.

In certain embodiments, the present disclosure provides methods of treating diseased or damaged tissue in a patient. In some forms the methods comprise introducing a photocurable composition to the diseased or damaged tissue, the photocurable composition comprising a photoactivatable metal ligand complex, a matrix forming polymer, and an electron acceptor. Such methods may further comprise irradiating the photocurable composition through a tissue portion to induce a photocrosslinking reaction forming crosslinks between individual polymers of the matrix forming polymer within the photocurable composition.

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.

A tissue closure system includes an endoscope having first and second lumens therethrough, first and second control elements disposed within the first and second lumens, respectively, and a tissue engaging portion integral with a distal end of the endoscope. The tissue engaging portion includes a tissue acquisition assembly and a tissue closure assembly. The tissue acquisition assembly is controllable via the first control element, and the tissue closure assembly controllable via the second control element. The tissue engaging portion includes a tissue grasping portion for engaging first and second target tissue portions disposed adjacent an opening in target tissue. The tissue closure assembly is configured to pierce the target tissue, and to hold the first and second target tissue portions together to close the opening in the target tissue.

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.

Provided herein are suturing systems, methods of anchoring to a bone, methods for anchoring a soft tissue to a bone, and methods of anchoring a first soft tissue portion to a second soft tissue portion. An exemplary suturing system includes an anchor and a suture inserter device. The anchor includes a plurality of anchor inserts coupled to a portion of the suture between a first end and second end of the anchor. The anchor has an insertion configuration that is substantially linear and a deployed configuration that is at least partially nonlinear. The suture inserter device includes a housing comprising a housing lumen and a housing shaft disposed therein, and an inserter fork coupled to the housing shaft. The housing shaft is axially translatable, and the inserter fork is axially translatable, via the housing shaft, between a distal position and a proximal position.

The invention relates to the field of medical instruments, in particular to a repair clamp for treating valve regurgitation, a conveying device and a repair clamp detachably connected with the conveying device.The repair clamp comprises a first clamping arm, a second clamping arm and a locking mechanism, and the first clamping arm and the second clamping arm are connected and can form a clamping area; the locking mechanism comprises a restraining piece capable of being tightened, the restraining piece penetrates through the connecting structure on the repair clamp, and the restraining piece can limit relative movement of the clamping arms in the tightened state. The conveying device is detachably connected with the repair clamp and is configured to be capable of conveying the repair clamp to a target heart valve and assisting the repair clamp to be opened or closed so that a target valve leaflet tissue part can be contained in the clamping area; after being folded and used for clamping the valve leaflets, the repair clamp cannot be exposed out of the involution faces of the valve leaflets, damage caused by collision between adjacent valve leaflets and an instrument when the valve is closed is avoided, the number of the repair clamp is reduced, and the load on valve leaflet movement is relieved.

A method of treating a patient with a bioelectrical system is provided. The method may include inserting a probe into a first position in an anatomy of the patient, the system being provided with a plurality of electrodes; energizing a first electrode of the plurality of electrodes with a measurement level of power; determining a complex impedance in the patient's anatomy; determining whether the first position is a desired position of the probe for ablating a predetermined portion of tissue of the patient, based on the complex impedance determined; and energizing one of the plurality of electrodes with an ablation level of power, the ablation level of power being greater than the measurement level of power. An apparatus for performing BIA on a patient is also provided.

A medical device includes an end effector assembly at a distal end of the medical device. The assembly comprises a pair of jaw members, a pair of electrodes including first and second electrodes, and first and second conductive wires attached to the first and second electrodes, respectively. Each jaw member includes a jaw and a tang, the jaw being transitionable between open and closed configurations for respectively receiving and collecting a tissue portion as a sample. The first and second conductive wires extend to a proximal end of the medical device and are removably connectable to a computing device configured to generate and provide electrical signals to, and determine an impedance measurement of the tissue portion based on response signals received from, the pair of electrodes contacting the tissue portion, and generate and provide a user interface indicating whether to collect the tissue portion based on the impedance measurement.

Graft for a bone defect, in particular a tibial head graft for a knee-joint endoprosthesis. It comprises a sleeve-like inner body (2) for implantation at one end of a long bone (99). An outer face of the inner body (2) is designed as a bone contact face (20) for bearing on the surrounding bone margin (97). According to the invention, an outer shell piece (3) is provided which, as a bone replacement piece, is doubled onto the outside of the inner body (2) for filling a defect at the cortical bone margin (97) and is not dimensioned peripherally, such that, in the circumferential direction, it covers only a part of the outer circumference of the inner body (2). The doubled outer shell piece (3) forms a filler piece for a bone defect (bone window 96) at the bone end. Closure of the bone window (96) is achieved, and unwanted contact between the graft and surrounding soft-tissue parts is avoided. Moreover, the graft is thus also supported in the region of the bone window (96). Parts of the bone margin (97) that are still present can thus remain intact, allowing the greatest possible preservation of naturally present bone substance.

A medical device includes an end effector assembly at a distal end of the medical device. The assembly comprises a pair of jaw members, a pair of electrodes including first and second electrodes, and first and second conductive wires attached to the first and second electrodes, respectively. Each jaw member includes a jaw and a tang, the jaw being transitionable between open and closed configurations for respectively receiving and collecting a tissue portion as a sample. The first and second conductive wires extend to a proximal end of the medical device and are removably connectable to a computing device configured to generate and provide electrical signals to, and determine an impedance measurement of the tissue portion based on response signals received from, the pair of electrodes contacting the tissue portion, and generate and provide a user interface indicating whether to collect the tissue portion based on the impedance measurement.

The invention discloses a bladder tumor specimen extractor which comprises an adjusting transmission assembly capable of controlling preliminary dicing, a separating assembly capable of separating a tissue part and a liquid part of a bladder tumor and an operating handle. The invention belongs to the technical field of bladder tumor surgery. When the bladder tumor temporarily exists on the tissue fluid passing layer, the puncture heads can puncture the taken-down bladder tumor, so that the tissue part of the bladder tumor is blocked through the tissue fluid passing layer, and the tissue fluid and plasma part of the bladder tumor can penetrate through the tissue fluid passing layer and enter the fluid storage bag; medical staff can sample tissue fluid and plasma parts of the bladder tumor by taking down the fluid storage bag, the tissue part of the bladder tumor can be sampled from the tissue fluid passing layer, brand-new bladder tumor sampling experience is provided, the possibility that the tissue fluid and the plasma are left in the bladder is greatly reduced, and convenience is brought to the medical staff.

The present invention discloses a nerve block simulation training method and related equipment. The method includes: constructing ultrasonic simulation models of different tissue parts of the human body based on standard three-dimensional anatomical structure information and simulated ultrasonic information of different tissue parts of the human body, and associating the ultrasonic simulation models of different tissue parts with the tissue simulator through coordinate information; tracking the relative position information and relative angle information of the simulated ultrasonic probe and the tissue simulator, and generating corresponding simulated ultrasonic images through the ultrasonic simulation model; tracking the position information and angle information of the simulated nerve block puncture needle in the tissue simulator, taking the intersection of the coordinate range of the puncture needle and the coordinate range of the simulated ultrasonic probe section, obtaining the coplanar coordinate range of the puncture needle and the simulated ultrasonic probe section, and converting the point-to-point into the simulated puncture needle ultrasonic image. It solves the problem that the simulated puncture site is limited, the clinical situation cannot be truly simulated, the efficiency of the transformation of simulation teaching to clinical practice is reduced, and the application value of actual clinical cases is lacking.

Provided herein are suturing systems, methods of anchoring to a bone, methods for anchoring a soft tissue to a bone, and methods of anchoring a first soft tissue portion to a second soft tissue portion. An exemplary suturing system includes an anchor and a suture inserter device. The anchor includes a plurality of anchor inserts coupled to a portion of the suture between a first end and second end of the anchor. The anchor has an insertion configuration that is substantially linear and a deployed configuration that is at least partially nonlinear. The suture inserter device includes a housing comprising a housing lumen and a housing shaft disposed therein, and an inserter fork coupled to the housing shaft. The housing shaft is axially translatable, and the inserter fork is axially translatable, via the housing shaft, between a distal position and a proximal position.

Implant systems and related methods for joining bone and / or tissue portions is disclosed. The implant systems include a first flexible anchor tube comprising a first annular side wall defining a first internal cavity, a first longitudinal end and a second longitudinal end, and a second flexible anchor tube comprising a second annular side wall defining a second internal cavity, a first longitudinal end and a second longitudinal end. The implant systems also comprise at least one suture that passes through the first and second side walls a plurality of times. The at least one suture extends along a pattern that prevents the second anchor tube from translating along the at least one suture and allows the first anchor tube to translate along the at least one suture toward the second anchor tube when first and second end portions of the at least one suture are tensioned.

The present invention discloses a bone tumor image enhancement method and system, comprising: step 1: acquiring a bone tumor pathology image, and performing fuzzy processing on the bone tumor pathology image, using the fuzzy processed bone tumor pathology image as an input data set, and using the original bone tumor pathology image as an output data set; step 2: constructing an image super-resolution enhancement model, and training the image super-resolution enhancement model using the input data set and the output data set until the loss function value of the image super-resolution enhancement model tends to converge; step 3: acquiring the bone tumor pathology image to be enhanced in real time, inputting the trained image super-resolution enhancement model, and generating a bone tumor pathology image with completed image super-resolution enhancement. The present invention solves the problem of image distortion of subtle pathological tissue parts in pathology images caused by conventional image super-resolution enhancement methods.

A device for creating an arteriovenous (AV) fistula includes a proximal base having a distal tapered end surface and a distal tip connected to the proximal base and movable relative to the proximal base. The distal tip has a proximal tapered end surface. A first heating assembly, including an energized heating element, is disposed on at least one of the distal tapered end surface and the proximal tapered end surface. A second heating assembly, comprising a passive non-energized heat spreader, is disposed on the other one of the distal tapered end surface and the proximal tapered end surface. The distal tapered end surface and the proximal tapered end surface are adapted to contact opposing sides of a tissue portion to create the fistula. The taper of the proximal tapered end surface matches the taper of the distal tapered end surface, so that the two surfaces match one another.

The invention belongs to the technical field of biological volatile metabolite source analysis, and particularly relates to a human expiration VOCs source identification method based on metabolism kinetics. The method comprises the following steps: constructing a VOCs transmission model based on metabolism dynamics; on the basis of affine function relation fitting of the exhaled concentration and the inhaled concentration, VOCs in-vivo generation and removal rates are obtained; adopting a thermodynamic equation to obtain a distribution coefficient with a mucus interface; the alveolar concentration without environmental influence is accurately predicted through the correction coefficient, and an internal and external source list of VOCs is provided. According to the VOCs transmission model, accurate simulation of transmission and distribution of VOCs in a body can be realized, and the contents of different tissue parts can be quantified; the effect of airway mucus on VOCs with different polarities is considered, the influence of physicochemical properties on transmission and distribution behaviors is emphasized, and the accuracy of the content of VOCs in different tissue parts is remarkably improved; the alveolar concentration without environmental influence is used as a standard for judging internal and external source VOCs, and refined source identification is realized by quantitative indexes.

The invention discloses a composite solid filler and a preparation method and application thereof, the composite solid filler comprises polylactic acid microspheres, calcium source particles, a suspending aid and a freeze-drying protective additive, the particle size D50 of the polylactic acid microspheres is 10-100 [mu] m, the particle size D50 of the calcium source particles is 5-70 [mu] m, and the mass ratio of the polylactic acid microspheres to the calcium source particles is 1: (0.4-50). The dosage of the suspending aid is 5-30% of the total mass of the composite solid filler, and the dosage of the freeze-drying protective agent is 5-10% of the total mass of the composite solid filler. The polylactic acid microspheres and the calcium source particles are compounded, so that the acidity generated by the polylactic acid microspheres can be neutralized with the alkalinity of the calcium source particles in the in-vivo degradation process, and the inflammation and irritation of the two materials to the human body are reduced. And the solid preparation is obtained through a freeze-drying process, so that the transportation and storage stability of the product is improved. The product is uniformly dispersed after being redissolved, has relatively low pushing force, and can be applied to the fields of filling of skin or other tissue parts, drug carriers and the like.

Graft for a bone defect, in particular a tibial head graft for a knee-joint endoprosthesis. It comprises a sleeve-like inner body (2) for implantation at one end of a long bone (99). An outer face of the inner body (2) is designed as a bone contact face (20) for bearing on the surrounding bone margin (97). According to the invention, an outer shell piece (3) is provided which, as a bone replacement piece, is doubled onto the outside of the inner body (2) for filling a defect at the cortical bone margin (97) and is not dimensioned peripherally, such that, in the circumferential direction, it covers only a part of the outer circumference of the inner body (2). The doubled outer shell piece (3) forms a filler piece for a bone defect (bone window 96) at the bone end. Closure of the bone window (96) is achieved, and unwanted contact between the graft and surrounding soft-tissue parts is avoided. Moreover, the graft is thus also supported in the region of the bone window (96). Parts of the bone margin (97) that are still present can thus remain intact, allowing the greatest possible preservation of naturally present bone substance.

A method and apparatus for performing a photometric cephalometric analysis are provided. An image of a face of a patient in a frontal plane is generated such that his / her head is along the Frankfurt horizontal plane. A facial proportionality angle (FPA) is calculated based on the image, with the FPA being formed by two rays going from a vertex located at a gnathion point to zygomatic points on both face sides. The gnathion point is a point of maximum projection of a soft-tissue part of the patient's chin in a sagittal plane. The zygomatic points aligned with each other in a transverse plane are on a skin surface above the most protruding points of zygomatic bones. The FPA is used to determine a relationship between a visual interzygomatic distance (distance between the zygomatic points) and a visual morphological face height (distance between the gnathion point and a soft-tissue nasion point).