73 results about "Transplantation surgery" patented technology

The present invention discloses an artificial blood vessel coating device and method, which relates to the field of artificial blood vessel repair and includes two parts: a pressurized coating system and a control system. The pressurized coating system includes a direct pipe joint for clamping the artificial blood vessel, a lifting plate, a guide rod, a liquid supply pump, a liquid return pump, a pressure stabilizing tank, a pressure sensor, a liquid storage tank, and a heating device. The direct pipe joint for clamping the artificial blood vessel is installed on the guide plate, and the guide plate is installed on the guide rod and can move up and down. The liquid supply pump and the liquid return pump form a pressure applying device to achieve impregnation perfusion coating of the artificial blood vessel under a certain pressure / perfusion coating under a certain pressure. The control system can set the pressure value, coating time, and heating temperature during coating. The present invention ensures that the coating liquid can penetrate into the internal pores of the fabric yarns through the pressurized coating method, ensures the sealing of the artificial blood vessel after coating, and improves the success rate of blood vessel transplantation surgery.

The embodiment of the invention discloses a coprophilous fungus transplantation donor and acceptor dynamic matching method, device and equipment and a medium, and the method comprises the steps: responding to a donor and acceptor matching request, and obtaining the monitoring data of a to-be-matched acceptor after coprophilous fungus transplantation at the current preset sampling time; wherein the monitoring data after coprophilous fungus transplantation is determined on the basis of the coprophilous fungus transplantation operation of a to-be-matched receptor completed by the coprophilous fungus flora of any target donor, and the target donor is determined by performing adaptability matching on the gene feature information, the immune feature information and the clinical feature information of the to-be-matched receptor and a plurality of to-be-selected donors; and inputting monitoring data after coprophilous fungi transplantation into the transplantation strategy control model, outputting at least one of a donor switching strategy and a dose adjustment strategy for adjusting a to-be-matched receptor in a next time period, realizing comprehensive compatibility evaluation through multi-modal data integration, continuously optimizing a treatment scheme by means of a dynamic feedback mechanism, and improving the compatibility of the to-be-matched receptor. And the accuracy and adaptability of coprophilous fungus transplantation treatment are remarkably improved.

The harvesting of hair for a hair transplant procedure with immediate placement of the hair grafts to the balding area, employs a hollow drill connected to a suction with an imaging system (containing one or more cameras) which permits alignment of the center of the cutting edge of the needle on or slightly offset from the axis of the hair within the follicular unit to be removed. This harvesting tool may be robotically controlled. As each follicular unit may have more than one hair, the surgeon controls the number of hairs in each graft he wishes to remove, excising the graft one at a time. A special FUE tool is used that excises the entire follicular unit with minimal residual attachments. The tool utilizes vacuum to facilitate complete excision. The graft that is excised is sucked though tubing and almost instantaneously delivered to an implanter held by the surgeon (Duplex Implanter) or by a robot. This graft on Demand system is controlled by the surgeon through a series of commands to the handpiece of the implanter for one, two, three or more hair grafts. The excision needle (punch) is placed to remove a hair graft with the chosen number of hairs, taken from an area which has been previously mapped out. When properly aligned, a follicular unit is removed without damaging critical anatomical portions of the follicles and it is delivered to the implanter at the command of the surgeon. In one embodiment, a movable x / y / z stabilizing gantry is employed to position the hollow needle in each instance which can be manually controlled by the surgeon, or robotically controlled with one or more robots. In another embodiment, a computer maps out the location of every graft within the surgical field of view, in part or in whole, and selects those follicles, minimizing the spacing left remaining after each excision while obtaining the number of grafts targeted by the surgeon. In still another embodiment, one or more robotic arms, controlled automatically by a controller or manually by a surgeon, operate graft excision instruments to facilitate speed and accuracy of the excision process.

The invention discloses a corneal graft configuration measuring device based on a grating projection method and a use method, and relates to the technical field of corneal graft configuration measurement, the corneal graft configuration measuring device comprises a grating optical measuring component and an eyeball environment simulating component, the eyeball environment simulating component is an intraocular pressure bubbling instrument, the intraocular pressure bubbling instrument comprises a hydraulic cavity and an eyeball-imitating rigid support, and the hydraulic cavity is communicated with the eyeball-imitating rigid support. The eyeball-imitating rigid support is arranged at the top of the hydraulic cavity; the grating optical measuring component comprises a laser light source, a precise optical grating, a condensing lens, a transparent artificial cornea graft, a narrow-band filter and an industrial camera. According to the corneal graft configuration measuring device based on the grating projection method and the using method, the defects in the prior art are overcome by adopting a transmission-type measuring light path, the configuration evolution of the corneal graft in a standard intraocular pressure environment can be measured in a non-contact, real-time, high-precision and low-cost mode, the operation effect of corneal transplantation is simulated, and the measurement accuracy of the corneal graft is improved. And effective guidance is provided for optimization of a medical clinical corneal transplantation operation scheme.

The harvesting of hair for a hair transplant procedure with immediate placement of the hair grafts to the balding area, employs a hollow drill connected to a suction with an imaging system (containing one or more cameras) which permits alignment of the center of the cutting edge of the needle on or slightly offset from the axis of the hair within the follicular unit to be removed. This harvesting tool may be robotically controlled. As each follicular unit may have more than one hair, the surgeon controls the number of hairs in each graft he wishes to remove, excising the graft one at a time. A special FUE tool is used that excises the entire follicular unit with minimal residual attachments. The tool utilizes vacuum to facilitate complete excision. The graft that is excised is sucked though tubing and almost instantaneously delivered to an implanter held by the surgeon (Duplex Implanter) or by a robot. This graft on Demand system is controlled by the surgeon through a series of commands to the handpiece of the implanter for one, two, three or more hair grafts. The excision needle (punch) is placed to remove a hair graft with the chosen number of hairs, taken from an area which has been previously mapped out. When properly aligned, a follicular unit is removed without damaging critical anatomical portions of the follicles and it is delivered to the implanter at the command of the surgeon. In one embodiment, a movable x / y / z stabilizing gantry is employed to position the hollow needle in each instance which can be manually controlled by the surgeon, or robotically controlled with one or more robots. In another embodiment, a computer maps out the location of every graft within the surgical field of view, in part or in whole, and selects those follicles, minimizing the spacing left remaining after each excision while obtaining the number of grafts targeted by the surgeon. In still another embodiment, one or more robotic arms, controlled automatically by a controller or manually by a surgeon, operate graft excision instruments to facilitate speed and accuracy of the excision process.

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 application provides a retractor for kidney transplantation surgery and relates to the technical field of medical auxiliary devices.The retractor comprises a retractor assembly and control pliers for controlling the opening and closing of the retractor assembly.The control pliers comprise two plier heads, and the retractor assembly comprises two retractor parts connected to the corresponding plier heads respectively.Two sets of the retractor assembly and the control pliers are symmetrically arranged, and a first driving device is arranged between the two sets of control pliers to maintain and / or adjust the distance between the two control pliers.A second driving device is arranged inside the control pliers to adjust the opening and closing angle of the control pliers.Both the first driving device and the second driving device are hydraulic telescopic elements.The application greatly improves the efficiency of the surgery and shortens the surgery time.In the process of the surgery, the surgery posture of the patient and the related equipment can be greatly adjusted without the need for secondary traction positioning, and the normal performance of the surgery is not affected by the great change of the surgery window.

The invention relates to the technical field of medical materials, in particular to a composition for soft tissue increment and a preparation method thereof, and the composition for soft tissue increment comprises a plasma matrix compressed material and a microvesicle concentrated solution. The composition for soft tissue increment provided by the invention comprises a plasma matrix compressed material and a microvesicle concentrated solution, the plasma matrix compressed material is rich in effective substances such as platelets and immune cells, has a compact three-dimensional fibrous protein network structure, and can provide a required scaffold for soft tissue regeneration, so that the soft tissue regeneration effect is improved. The microvesicle concentrated solution contains a large number of effective biological components such as cell factors and signal molecules, regeneration of local soft tissue can be further regulated and controlled, the microvesicle concentrated solution and the microvesicle concentrated solution have a synergistic effect, the excellent soft tissue regeneration promoting capacity is achieved, a complete autologous source is achieved, connective tissue transplantation surgery is replaced, and the application prospect is wide. The excellent performance is shown in the clinical application of soft tissue regeneration.

The invention relates to the technical field of transfer trolleys, in particular to a transfer trolley for a reproductive center ovum taking transplantation operation patient, which comprises a shell and an inflation box, a placing plate is fixedly connected to the top of the shell, a rotating plate is hinged to the side wall of the placing plate, a sliding opening is formed in the placing plate, an inflation bag is in sliding fit with the sliding opening, and an inflation pipe fixedly circulates at the bottom of the inflation bag; a one-way valve fixedly circulates at the joint of the inflation bag and the inflation pipe, the inflation pipe penetrates through the sliding opening and is in sliding fit with the sliding opening, and the end, away from the inflation bag, of the inflation pipe fixedly communicates with the inflation box; a power assembly used for driving the rotating plate to rotate and driving the inflation bag to expand is arranged in the shell. A storage assembly used for storing medical supplies is arranged in the shell. A limiting assembly used for limiting the body position of a patient is further arranged. By lifting the head and below the knees of a patient, the patient can reach the best horizontal position posture, and the transplantation success rate and comfort are both improved.

The invention belongs to the technical field of biomedicine, and discloses a preparation system and method for increasing hair follicle tissue in vitro by using an autologous hair follicle preserving fluid rich in arginine. According to the invention, the differential low expression of arginine in androgenetic alopecia patients is reported for the first time; according to the invention, androgenetic alopecia is taken as a research object to clarify the effect of arginine in the attack of androgenetic alopecia and the effect of arginine on hair growth, and it is found that the hair follicle activity can be further preserved and the success rate of hair transplantation can be increased by improving the hair follicle preserving fluid by increasing the concentration of arginine in vitro. Therefore, a new thought is provided for in-vitro preservation of the hair follicle tissue in the hair transplantation operation.

1. Name of the product in this design: Artificial Meniscus (Implantable). 2. Purpose of this design: This design is intended for use in meniscus transplantation surgery for patients with meniscus injuries. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This eye disease implant insertion device for controlling eye pressure comprises: a cannula including an inner space for accommodating at least a portion of an eye disease implant having a stent, and an implant opening through which the eye disease implant is to be inserted thereinto; a handle part which is connected to the cannula and which is to be held by an operator; and a holder which is coupled to the handle part, and which includes an accommodation part for accommodating the stent of the eye disease implant. According to the eye disease implant insertion device, the stent inserted into a tube of the eye disease implant is suitably fixed by being held in the insertion device, and thus problems, during implant surgery, such as the stent falling out of the tube, the implant becoming separated from the insertion device due to the stent, or the visual field of the operator becoming blocked by the stent can be prevented.

The invention relates to an application of a soluble epoxide hydrolase inhibitor in the field of transplantation, the soluble epoxide hydrolase inhibitor is TPPU, and the soluble epoxide hydrolase inhibitor is applied in the fields of organ transplantation and tissue transplantation. The TPPU is used for relieving allogeneic mouse heart and skin transplantation immunological rejection, reducing immune cell infiltration in transplantation operation, and inhibiting CD4 + T cell proliferation, CXCR3 chemokine receptor positive and Th1 cell subset proportion. The TPPU inhibits proliferation of primary CD4 + T cells of normal mice and differentiation of Th1 cell subgroups. In organ transplantation and tissue transplantation, the invention provides a single soluble epoxide hydrolase inhibitor TPPU, which can relieve allogeneic mouse heart and skin transplantation immunological rejection, inhibit normal mouse primary CD4 + T cell proliferation and differentiation, and reduce toxic and side effects caused by the use of an immunosuppressant.

The invention relates to the technical field of oral implantation, in particular to a healing abutment assembly which comprises a healing abutment and a scanning rod. The healing abutment establishes a highly smooth cylindrical body above a gum penetrating part 12, and a hexagonal retention design with width and thickness is cut above the cylindrical body; the designed customized abutment is worn on a patient suffering from keratinized gingival deficiency after implantation, a free gingival transplantation operation is completed selectively, the model is coated with silicone rubber to cover the abutment, the edge of an operation area extends, and the edge shape is trimmed after solidification. The healing abutment comprises a connecting part, a gum penetrating part and a healing cap; the connecting part is fixedly connected to the first end of the gum penetrating part, the connecting part is used for being connected with an implant, and the implant is implanted into an alveolar bone of an edentulous area; the healing cap is fixed at the second end of the gum penetrating part; the connecting part, the gum penetrating part and the healing cap are integrally formed; the scanning rod comprises an inserting part, an identification surface and a scanning rod base body; an inserting part is fixedly arranged at the lower end of the scanning rod base body and used for being detachably connected with the end, away from the connecting part, of the healing abutment.

The present disclosure describes a system and a method for producing patient-specific small diameter vascular grafts (SDVG) for coronary artery bypass graft (CABG) surgery. In some embodiments, the method for producing SDVGs includes non-invasive quantification of patient-specific coronary and vascular physiology by applying computational fluid dynamics (CFD), rapid prototyping, and in vitro techniques to medical images and coupling the quantified patient-specific coronary and vascular physiology from the CFD to computational fluid-structure interactions and SDVG structural factors to design a patient-specific SDVG.

The utility model belongs to the technical field of allogeneic bone clamping, and particularly relates to allogeneic bone clamping equipment which comprises a base. A disc is arranged at the top end of the base; a ring is arranged at the top end of the disc; the top end of the circular ring is fixedly connected with a square plate; a sliding groove is formed in the top end of the square plate. A pair of vertical plates is connected in the sliding groove in a sliding manner; clamping plates are fixedly connected to the top ends of the pair of vertical plates; a pair of T-shaped placing plates is arranged between the pair of clamping plates; in order to overcome the defects in the prior art and solve the problems that due to the fact that an existing clamping device cannot adjust the height, medical workers need to operate in an uncomfortable posture, the working efficiency is possibly reduced, the operation time is prolonged, and the working efficiency is reduced. The problems that medical staff cannot accurately control the grinding process, the shape and size of the allogeneic bone are not matched, and the success rate of the transplantation operation is affected are solved.

The utility model discloses an animal embryo transplantation operating table, and belongs to the technical field of animal embryo transplantation. A groove is formed in the table body, a supporting plate is installed in the groove, four sliding grooves are formed in the top of the table body, the sliding grooves are T-shaped grooves, a fixing assembly comprises a sliding block and a fixing base, a fixing ring is arranged at the bottom of the sliding block, a clamping block is arranged at the bottom of the sliding block, the clamping block is a T-shaped block, the clamping block is clamped in the sliding grooves in a sliding mode, and the fixing base is fixedly connected to the top of the table body. The number of the fixing seats is four, blind holes are formed in the fixing seats, electric push rods are installed in the blind holes, and check blocks are fixedly connected to the moving ends of the electric push rods. According to the operating table, the fixing assembly is arranged, the animal to be operated is fixed on the operating table through the fixing assembly, the situation that the animal struggles in the operation process, and consequently operation is difficult is avoided, and the problem that the animal to be operated cannot be well fixed through the operating table is solved.

The utility model provides an isolated organ perfusion preservation device which comprises an organ preservation assembly, a perfusion circulation assembly, a temperature adjusting assembly and a control assembly. The organ preservation assembly comprises a preservation tank body, an organ tray and a side plate supporting frame, the preservation tank body comprises an inner layer and an outer layer, the organ tray and the side plate supporting frame are both arranged in the inner layer of the preservation tank body, the side plate supporting frame is connected with the organ tray in the circumferential direction, and the organ tray is used for supporting an isolated organ; the perfusion circulation assembly comprises a perfusion liquid container, a gas separator and a filtering remover, the perfusion liquid container comprises an inner layer and an outer layer, and the inner layer of the perfusion liquid container is communicated with the inner layer of the storage tank body; the temperature adjusting assembly comprises a temperature adjusting liquid container, a temperature sensor and a temperature control unit, and the temperature adjusting liquid container, the outer layer of the storage tank body and the outer layer of the perfusate container are communicated with one another; the control assembly is connected with the temperature adjusting assembly and comprises a filtering unit and a PID adjusting unit. The utility model is beneficial to improving the organ preservation quality and improving the success rate of transplantation operation.

The invention provides a special thoracotomy auxiliary device for a thoracic surgery department clinical operation. The special thoracotomy auxiliary device structurally comprises positioning blocks, a splicing main body, an operation groove, parallel rails and a distraction contactor, and the positioning blocks are arranged on the left side and the right side of the splicing main body; on the basis of the operation groove of the splicing main body, the situation that an operation area is blocked after intervention of an auxiliary device can be avoided; then, two groups of opening contactors inside can be used for uniformly and stably opening the thoracotomy ribs (for a part of large complex thoracotomy operations in which the ribs need to be cut open, such as lung transplantation operations, better visual field and surgical operation space can be obtained by opening the ribs in an auxiliary manner); and meanwhile, a contact body of the stress block can be combined with an anti-rust plate and a flexible sleeve to be in contact alignment with each rib, finally, the ribs are fixed one by one by a limiting ring and a circular groove, and automatic sliding caused by unattended operation is avoided.

The invention provides a tissue phase homogenizing agent and a preparation method and application thereof, and belongs to the technical field of biological tissue engineering, the homogenizing agent is composed of hydrophilic matrixes (glucose, polyglycerol, poloxamer F127 and polyvinyl alcohol), functional additives (mannose, N-acetylcysteine, sodium hyaluronate and polyethylene glycol) and ultrapure water, and the pH value is 7.0 + / -0.2. Hydrophilic groups and water molecules form a hydrogen bond network, a continuous hydration layer is constructed on a phase interface, phase domain fusion, refractive index homogenization and molecular ordering are achieved, the problem of biological tissue phase homogenization is solved, tissue light transmittance can be improved, the swelling ratio can be stabilized, and the hydrogel has cell proliferation promoting activity and is suitable for tissue transplantation operation and bioengineering tissue preservation.

An instrument for use in hair transplant surgery has a hollow handle (1,2, Fig 2) containing an electronics assembly having a microswitch 9 coupled to an axially displaceable chuck assembly 15, 22. Th

The present invention discloses a corneal graft configuration measuring device and a using method thereof by the grating projection method, which relates to the technical field of corneal graft configuration measurement. The device includes a grating optical measurement component and an eyeball environment simulation component. The eyeball environment simulation component is an intraocular pressure bubbler, and the intraocular pressure bubbler includes a hydraulic cavity and an eyeball-mimicking rigid support. The eyeball-mimicking rigid support is arranged at the top of the hydraulic cavity. The grating optical measurement component includes a laser light source, a precision optical grating, a condenser lens, a transparent artificial corneal graft, a narrow-band filter, and an industrial camera. By adopting the above-mentioned corneal graft configuration measuring device and using method thereof by the grating projection method, the present invention solves the deficiencies of the prior art by using a transmissive measurement optical path, and can non-contact, real-time, high-precision, and low-cost measure the configuration evolution of the corneal graft under the standard intraocular pressure environment, simulate the surgical efficacy of corneal transplantation, and provide effective guidance for the optimization of corneal transplantation surgical plans in medical clinics.

The present invention provides an intelligent surgical planning method and system for autologous tooth transplantation, relating to the field of image processing technology. The method comprises: obtaining a CBCT image of a tooth to be operated on; segmenting each individual tooth in the CBCT image using a 3D UX‑Net network; segmenting the upper and lower jaws in the CBCT image using a SegResNet network; determining various feasible transplantation surgical planning schemes for transplanting an alternative donor tooth to a recipient tooth using principal component analysis based on the segmentation results of the individual teeth and the jaw; and determining the optimal transplantation surgical planning scheme based on the crown overlap rate, root overlap rate, and amount of bone grinding between the recipient and donor teeth in various transplantation surgical planning schemes. The method achieves precise segmentation of individual teeth and the upper and lower jaws; effectively controls the amount of bone grinding and optimizes the matching between the donor and donor teeth, thereby improving the surgical success rate and postoperative comfort.

The present invention relates to the use of mesenchymal stem cells to reduce inflammation and immune responses for neuromuscular injuries and limb transplants. A particular preferred embodiment relates to use of mesenchymal stem cells that are modified to express interleukin-10 in limb transplantation surgery. In particular embodiments, the present invention also provides a method of improving nerve and muscle regeneration and functional outcome for limb transplantation in a mammalian limb transplant recipient by administering to the limb transplant recipient a therapeutic amount of mesenchymal stem cells.

The invention provides a retraction device for kidney transplantation, and relates to the technical field of medical auxiliary instruments, the retraction device comprises a retraction assembly and a control clamp for controlling the retraction assembly to open and close, the control clamp comprises two clamp heads, and the retraction assembly comprises two retraction parts connected with the corresponding clamp heads respectively; two groups of retracting assemblies and two groups of control forceps are symmetrically arranged, a first driving device is arranged between the two groups of control forceps and is used for maintaining and / or adjusting the distance between the two groups of control forceps, and a second driving device is arranged in the control forceps and is used for adjusting the opening and closing angles of the control forceps; the first driving device and the second driving device are hydraulic telescopic elements. According to the invention, the operation efficiency is greatly improved, and the operation time is shortened; in addition, in the operation process, the operation posture of the patient and related equipment can be greatly adjusted, secondary traction positioning is not needed, and meanwhile it is not needed to worry that the normal operation of the operation is affected by the great change of an operation window.

The invention discloses a manufacturing method of an autologous tooth transplantation operation cavity preparation guide plate. The manufacturing method comprises the following steps: S1, obtaining digital models of a transplanted tooth donor, a transplanted tooth and an alveolar bone, and respectively printing solid models; s2, preparing a hole in the alveolar bone entity model to simulate transplantation; s3, scanning the alveolar bone solid model after hole preparation to obtain an alveolar bone digital model after hole preparation; s4, registering and overlapping the two alveolar bone digital models before and after hole preparation to obtain the difference of the states of the alveolar bone before and after hole preparation, and modeling according to the amount of the ground bone during hole preparation to obtain a bone grinding amount digital model; s5, designing a bone grinding guide plate model through the prismoid and the cone; s6, simulating placement of the bone grinding guide plate model, and trimming the position, shielded by the alveolar fossa, of the bone grinding guide plate model; and S7, designing side wings and combining the side wings with the bone grinding guide plate model. Compared with the prior art, the method has the advantages that the fitting rate of the transplanted tooth donor and the alveolar socket and the success rate of one-time implantation and in-place of the transplanted tooth donor are improved.

The invention discloses an intelligent auxiliary method for autologous bone transplantation, which comprises the following steps: constructing a three-dimensional jaw bone model, a three-dimensional tooth model and a three-dimensional defect area model based on CBCT (cone beam computed tomography) image data of a target object; according to the three-dimensional defect area model, obtaining defect area three-dimensional form data, inputting the defect area three-dimensional form data into the trained bone increment prediction model, and outputting to-be-supplemented autologous bone block design parameters; according to the design parameters of the to-be-supplemented bone block, in combination with the three-dimensional tooth model, determining a bone taking position of the to-be-supplemented bone block in the three-dimensional jaw bone model, and automatically marking the bone taking position so as to plan a bone block cutting path; according to the bone block cutting path, a predicted cutting force is obtained by combining a cutting force model; planning the motion track of the mechanical arm according to the predicted cutting force to realize auxiliary cutting of the autogenous bone block; in the cutting process, the actual cutting force is monitored in real time, and the movement track of the mechanical arm is dynamically adjusted according to the actual cutting force. According to the method, the preoperative planning is optimized, the operation precision in the operation is improved, and the operation risk is reduced.

The utility model discloses a cartilage transplantation component for in-vitro construction of autologous bone marrow mesenchymal stem cells, which relates to the technical field of orthopedic medical instruments and comprises a guide part and a drilling implant, the guide part is matched with the drilling implant for use, and a guide structure matched with the drilling implant for use is arranged on the guide part. The drilling implant comprises a punching part, a cartilage pushing-in part and a reaming part. Through the cooperative use of the guide piece and the drilling implant, the in-vitro construction of the cartilage transplantation assembly by the BMSCs is realized. Due to the design of the guide part, the drilling implant can be used for drilling, reaming and implanting at a cartilage defect part, and meanwhile, chronic tissues are protected, so that the operation is simpler, more convenient and more accurate. The drilling implant comprises a punching part, a cartilage pushing-in part and a reaming part, each part has a specific function, and different operation requirements can be met. By means of the technical scheme, the success rate and stability of cartilage transplantation operation can be effectively improved, and better guarantee is provided for rehabilitation of patients.

The application relates to a kind of based on the method and system of joint learning strategy's lamellar keratoplasty surgery augmented reality navigation, comprising: based on the acquisition surgery image of camera unit and conversion into single frame image, and carry out normalization processing to construct neural network model input;Based on frame-by-frame image, utilize joint learning deep neural network model to obtain surgery instrument, corneal region segmentation result and corresponding completion optical flow result;The image and corresponding completion optical flow result of current frame and forward adjacent frame are combined, and the completion information of current frame is comprehensively calculated, and the area blocked by surgery instrument is recovered by completion calculation;Utilize corneal region segmentation result to realize the augmented reality navigation result of superimposed surgery suture line and point position on the completion surgery image by ellipse fitting and suture point calculation process.The application can realize the construction of augmented reality navigation information for lamellar keratoplasty surgery, guide surgery related operation, improve surgery efficiency.

The utility model discloses a retractor for kidney transplantation surgery, which comprises a supporting rod, a connecting rod and an annular support, the supporting rod is connected with the connecting rod through a connecting piece, the connecting rod is connected with the annular support through a universal adapter, the annular support is provided with a plurality of traction pieces, and the traction pieces are connected with the connecting rod through a universal adapter. The traction piece is installed on the annular support through an adjusting block, and the adjusting block can adjust the length, the angle and the position of the traction piece. The retractor for the kidney transplantation operation comprises the supporting rod, the connecting rod, the annular support, the traction piece and other structures, flexible adjustment of the positions of the supporting rod, the connecting rod, the annular support and the traction piece is achieved through the adjusting effect of the connecting piece, the universal adapter and the adjusting piece, and the retractor is suitable for being used in various surgical operations.