39 results about "External fixation devices" patented technology

A clamping system includes a first clamp body including a first jaw, a second jaw, and a first aperture configured to receive a bone pin, the first clamp body is configured to receive a first connector rod between the first jaw and the second jaw, a second clamp body coupled to the first clamp body and including a third jaw, a fourth jaw, and a second aperture configured to receive the bone pin, the second clamp body configured to receive a second connector rod between the third jaw and the fourth jaw, and a securing assembly movable between a first position and a second position, such that moving the securing assembly from the first position to the second position reduces a distance between the first jaw and the second and reduces a distance between the third jaw and the fourth jaw.

The invention discloses a variable stiffness external fixing device for accelerating lower limb fracture healing, which comprises two oppositely arranged fixing rings, a plurality of support arms connected between the two fixing rings, and kirschner wires arranged inwards along the radial direction on the fixing rings, and is characterized in that the fixing rings are also provided with kirschner wire applied stiffness adjusting mechanisms. The rigidity change of the fixing end of the external bone fixing device can be adjusted, the structure is simple, adjustment is convenient and fast, and the rigidity adjusting requirements of different stages in the bone rehabilitation process can be better met.

The invention relates to a high-breathability and high-fitness in-vitro fixing device with a shape memory function and a preparation method of the high-breathability and high-fitness in-vitro fixing device, and relates to the field of biomedical materials, the high-breathability and high-fitness in-vitro fixing device comprises the following components in parts by mass: 40-45 parts of polycaprolactone, 40-45 parts of polylactic acid, 4-6 parts of a compatilizer, 0.5-1.5 parts of a cross-linking agent, 8-12 parts of nano-hydroxyapatite, 10-20 parts of biocompatible polyurethane and 0.1-0.3 part of a coloring agent. The preparation method comprises the following steps: mixing the raw materials, carrying out melt blending, and carrying out extrusion granulation to obtain composite particles; the composite particles are subjected to melt-blowing spinning, and non-woven cloth is obtained; and carrying out hot press molding on the non-woven fabric, shaping and cooling to obtain the high-breathability and high-fitness in-vitro fixing device with the shape memory function. The in-vitro fixing device prepared by the invention has a silk net structure, has good air permeability, a shape memory function and fitness, and has good mechanical properties and antibacterial properties.

The application relates to an external bone fixation device. The external bone fixation device comprises a base, a first fixing member for fixing one of a proximal bone and a distal bone, the first fixing member being movably connected to one end of the base along a first direction, so that the first fixing member can rotate relative to the base along a second direction and a third direction, the first direction being the arrangement direction of the proximal bone and the distal bone, and any two of the first direction, the second direction and the third direction being perpendicular; and a fixing assembly for fixing the other of the proximal bone and the distal bone, the fixing assembly being movably connected to the end of the base along the first direction away from the first fixing member, so that the fixing assembly can move relative to the base along the second direction and the third direction, and can move and rotate relative to the base along and around the first direction. The external bone fixation device does not need to be repeatedly adjusted, and the operation is relatively simple.

A device for rapid reduction and external fixation of a limb fracture comprises a C-shaped splint, a fixed splint, a reduction arc plate, and a limiting component. The limiting component includes a connecting frame and a connecting arc plate. An outer wall of the connecting frame is provided with a fixed pressing plate, and a bottom of the fixed pressing plate is provided with a positioning clamping plate. A plurality of positioning slots are provided in the connecting frame and the connecting shaft. The positioning clamping plate is fixedly sleeved in the positioning slots.

The invention relates to the technical field of nasobiliary ducts, and discloses a nasobiliary duct in-vitro fixing device which is characterized in that a first arc-shaped groove is formed in the top of a connecting block, a second arc-shaped groove is formed in the bottom of the connecting block, a first adjusting mechanism is arranged in the connecting block, and a second adjusting mechanism is arranged on the front face of the connecting block; the first adjusting mechanism comprises sliding assemblies and limiting assemblies, the sliding assemblies are arranged on the left side and the right side in the connecting block, the limiting assemblies are arranged on the left side and the right side of the connecting block, the second adjusting mechanism comprises a position changing assembly and a fixing assembly, and the position changing assembly is arranged on the front face of the connecting block. The fixing assembly is arranged on the front face of the transposition assembly. A fixing block is moved through a second adjusting mechanism, so that the nasobiliary duct moves left and right, the nasobiliary duct can be adjusted left and right according to the nostril of a patient, after the fixing block is adjusted, the nasobiliary duct is inserted into a fourth connecting hole, and after insertion, the nasobiliary duct is fixed through the elastic force of a third spring.

The invention discloses a rapid suspension device for maxillary fracture, belongs to the technical field of medical emergency treatment instruments, and aims to solve the problem that a rapid, stable and portable external fixing device is lacked in maxillary fracture emergency treatment in a battlefield environment. The device comprises a head sleeve assembly, a pull rope locking mechanism, an insertion assembly and a maxilla bracket assembly, the head sleeve assembly comprises an annular head sleeve and a cross belt, the pull rope locking mechanism is installed on the two sides of the head sleeve through the adjusting assembly, the plug-in assembly is composed of a detachable plug-in buckle female head and a detachable plug-in buckle male head, and the maxilla bracket assembly comprises a left denture, a right denture and an arc-shaped connecting rod. The device adopts a magic tape, a BOA knob and a plug-in mounting structure, so that quick mounting and tension adjustment are realized, the distance between denture supports can flexibly adapt to different wounded persons, a medical metal material can be repeatedly disinfected, maxillary fracture bone blocks can be effectively supported forwards, backward falling is prevented, the smoothness of the upper respiratory tract is guaranteed, and the device is adaptive to battlefield first-aid efficient treatment requirements; the survival rate of the wounded with maxillofacial trauma can be obviously improved.

In an external fixation device, adjustments in length (contracting or extending a strut) are carried out by respective motorized actuators of the struts, which are programmed to operate according to an actuation plan. In some embodiments, a total required change in length is defined for each of the struts, and based on the intended number of treatment days, a daily change in length is defined for the strut. Then, taking into account the number of intended device actuations per day, a change in length for each actuation is defined. Since the total required change in length may differ for different struts of the same device, the changes in length (whether at a single actuation or as a daily, cumulative change in length) can differ between the different struts.

The utility model provides an external fixation instrument for traction of bone hammer-shaped fingers. The external fixation instrument comprises a fingerstall, a screw rod and a threaded ring, the external shape of the fingerstall is in a square box shape, one end of the fingerstall is open, the fingerstall is used for wrapping the fingertip, the outer side wall of the fingerstall is connected with one end of the screw rod, and the threaded ring is matched with the screw rod. The U-shaped clamp made of an aluminum plate is matched with the bandage to clamp and fix the bony hammer-shaped finger, then the fingerstall is adopted to wrap the fingertip, and the threaded ring is rotated in a matched mode, so that the threaded ring drives the fingerstall to move through the screw rod, the finger is pulled, the tail section of the bony hammer-shaped finger is straightened or the back of the bony hammer-shaped finger is slightly stretched, and the bony hammer-shaped finger is fixed. The effect of traction on the bony hammer-shaped finger under the non-surgical condition is achieved.

The invention relates to a testing device for performing multi-dimensional comprehensive mechanical property evaluation on a bone and an external fixing device thereof. The device can simulate the stress state of a skeleton and a fixing device of the skeleton under the conditions of walking, supporting and loading in a multi-degree-of-freedom mechanical environment, and realizes high-precision loading of axial stretching, compression and bending loads and measurement of comprehensive mechanical characteristics such as static and dynamic properties. The device comprises a mechanical platform, a driving system, a force sensing system and a displacement measuring system. The mechanical platform adopts a structural form that double sliding tables are orthogonally arranged, and the two sliding tables can independently or cooperatively apply axial force and lateral force to realize multi-dimensional loading; the driving system comprises a servo motor and a ball screw transmission mechanism, rotation of the servo motor is converted into linear motion of the sliding table through a ball screw, and accurate control over loads is achieved. The force sensing system is composed of two sets of resistance strain type S-shaped force sensors, axial and bending loads are measured respectively, and force-displacement-time synchronous data collection is achieved. The displacement measurement system adopts a double-laser triangulation ranging structure, and high-precision measurement of angular displacement and linear displacement is realized by measuring micro displacement and dip angle change of a sample section through a reflection marking piece; data acquisition and control can be realized by controlling an acquisition system.

The present disclosure provides methods for determining an adjustment prescription of an external fixation device affixed to anatomical structures. The methods include obtaining at least two digital radiographic images of differing orientations of the external fixation device and anatomical structures in an initial arrangement. The methods also include identifying fiducial markers of the external fixation device and an axis of the anatomical structures in the at least two radiographic images. The methods include providing a virtual manipulatable three-dimensional model of the external fixation device and the anatomical structures. The methods include providing an adjustment prescription of strut assemblies of the external fixation device based on a user determined desired arrangement of the anatomical structures that rearranges the anatomical structures from the initial arrangement to the desired arrangement via at least one user selected waypoint. The user determined desired arrangement of the anatomical structures is determined via the three-dimensional model.

This invention provides a urinary catheter for male urethrography with precise graduations and an external fixation device, comprising a urinary catheter and an external fixation device slidably fitted onto the outer wall of the urinary catheter. The external fixation device includes an elastic rubber ring on the side closest to the body, an umbrella-shaped telescopic cover on the side of the elastic rubber ring away from the body, a support arm on the side of the umbrella-shaped telescopic cover away from the elastic rubber ring, and a limiting component on the other side of the support arm. The support arm is sleeve-shaped and is sequentially and fixedly connected to the umbrella-shaped telescopic cover and the elastic rubber ring, and fitted onto the urinary catheter. The outer wall of the urinary catheter is provided with a graduation recognition component. This invention provides reliable and non-dislodgement of the urinary catheter; it is simple to operate, reduces patient pain, improves patient safety and comfort, avoids urethral damage caused by balloon-type internal fixation, and its applicable population can be extended to infants and young children; it can improve the doctor's operating experience, avoid repeated radiation damage, and effectively shorten the operation time; it precisely controls the insertion depth, avoiding excessive or superficial insertion that could cause injury to the patient.

This invention provides an external fixation device for a balloon catheter used in clinical nursing, belonging to the field of medical devices. It includes a mounting box, with a fixing rod fixedly connected to the inner surface of the mounting box. A buffer assembly is provided on the outer side of the fixing rod. The buffer assembly includes a winding part and a movable part. The winding part includes a movable sleeve rotatably connected to the outer surface of the fixing rod. By setting the buffer assembly, the catheter can be wound and stored by a guide frame, keeping the length of the catheter outside the mounting box within an appropriate range. This effectively reduces the risk of accidental pulling on the catheter. The movement of the guide frame releases the catheter, buffering and absorbing the pulling force on the catheter, thereby effectively reducing the transmission of pulling force to the balloon catheter. This reduces the probability of damage to the patient's bladder and urethra caused by the balloon catheter during accidental patient movement, thus effectively ensuring comfort during the operation of the catheterization device.

The invention discloses a fibula far-end downward-moving single-arm external fixing device, and relates to the technical field of orthopedic external fixing frames, the fibula far-end downward-moving single-arm external fixing device comprises a first fixing assembly and a second fixing assembly, the first fixing assembly comprises a first fixing frame, an upper sliding clamping block, a first kirschner wire, a lower sliding clamping block and a second kirschner wire, the first fixing assembly comprises a first fixing frame and a first kirschner wire, the upper sliding clamping block and the lower sliding clamping block are arranged on the first fixing frame in a sliding mode and locked through a locking device, the first kirschner wire penetrates through the upper sliding clamping block to be fixedly connected with the proximal tibia end or the proximal fibula end, and the second kirschner wire penetrates through the lower sliding clamping block to be fixedly connected with the distal fibula end; the second fixing frame is fixedly connected with the first fixing frame, the third kirschner wire penetrates through the second fixing frame and is fixedly connected with the far end of the fibula of the patient, and the second kirschner wire and the third kirschner wire form an included angle and are located in different planes. The fixing effect of the fibula far-end downward-moving single arm is good, and fixation can be conducted from multiple aspects.

The utility model provides a portable external fixing device suitable for a hand fracture patient, and relates to the technical field of fracture rehabilitation. An arc-shaped groove is formed in the middle of the bearing block, and two through round holes are formed in the middle of the arc-shaped groove. The wrist of a patient can be fixed and limited through the limiting plate, four fingers can be fixed through the four finger grooves respectively, the thumb can be fixed and limited by the thumb groove and the thumb positioning plate, and therefore the fingers and the wrist can be fixed and limited respectively, the rehabilitation time of the wrist and the fingers is saved, the fracture end can be ensured not to move through wrist and finger fixing, and the rehabilitation effect is good. The device is simple in structure and convenient to use, bone healing is facilitated, movement of fracture parts can be reduced through good fixation, so that pain is relieved, and the problems that the wrist and the fingers of a patient are fractured and need to be fixed and limited respectively, otherwise, the wrist and the fingers are fixed together infirmly due to the too long distance, and the rehabilitation time of the wrist and the fingers is affected are solved.

The invention provides a needle-threading external fixation device and method for evaluating fracture healing based on mechanical inversion, and relates to the technical field of medical instruments. According to the device, the fracture of a patient is fixed through the fixing module, the device is high in integration level, easy and convenient to operate and wider in clinical applicability, stress data borne by the fixing module when the patient bears the weight is obtained through the monitoring module, objective and quantitative fracture healing evaluation indexes are provided, excessive dependence on experience and iconography is reduced, and the fracture healing effect is improved. The measurement principle is more direct, the accuracy and credibility of an evaluation result are improved, finally, through a data processing and transmission module, collected stress data are preliminarily calculated and transmitted to a computer end for mechanical inversion, the equivalent stiffness of the healing tissue of the fracture broken end is calculated, and the accuracy and credibility of the evaluation result are improved. The qualitative change of fracture healing evaluation from imaging evaluation to mechanical property evaluation is realized.

The utility model discloses a wrist joint examination positioner which comprises a supporting part, and a lifting part is arranged on one side of the supporting part. The height of the lifting part is greater than that of the supporting part; a fixing frame is further arranged on the lifting part. And the fixing frame is U-shaped. After the palm of the patient is placed on the fixing frame and the elbow of the patient is located on the supporting part, the hand of the patient presents a high-wrist and low-elbow layout. The open type structure has good adaptability to obese, thin and weak patients or patients with plaster external fixing devices. Meanwhile, due to the design that the front portion is high and the rear portion is low, the comfortable experience of the patient in the posture placing process is improved, motion artifacts are reduced, the examination time is shortened, meanwhile, the examination quality can be improved, and based on the design, the examination bed is worthy of application and popularization.

The invention discloses a kidney disease dialysis tube in-vitro fixing device, and relates to the technical field of medical auxiliary instruments, the kidney disease dialysis tube in-vitro fixing device comprises a base body assembly used for being attached to the limbs or the waist and the abdomen of a patient, and placing a dialysis tube on the base body assembly; the tube body fixing assembly is arranged at the front end of the base body assembly and used for fixing and limiting the placed dialysis tube; the binding assemblies are arranged on the two sides of the base body assembly and used for binding the base body assembly to the limbs of a patient. The device comprises a furling box, a binding belt, a male buckle and a female buckle piece, wherein the female buckle piece buckles or releases the male buckle in a pressing mode; according to the technical scheme, the dialysis tube is buffered and fixed in a wrapping mode through the two sets of rubber rings, the whole device is bound and locked through the female fastener, and the flexible attaching structure and the composite structure type bandage on the device are combined, so that the requirements for stable fixing of the dialysis tube and comfortable wearing of a patient are effectively met; and safe and continuous dialysis treatment is ensured.

The invention relates to the field of medical instruments, in particular to an adjustable noninvasive external fixing device for progressive correction of limb fractures, which comprises two fixing rings, adjusting chutes are formed in the surfaces of the fixing rings along the axial directions of the fixing rings, and connecting rod assemblies are slidably connected in the adjusting chutes. Fulcrum plates are hinged to the ends, far away from the fixing ring, of the connecting rod assemblies, and the ends, far away from the connecting rod assemblies, of the two fulcrum plates are hinged; an elastic assembly used for providing traction force for folding the two fulcrum plates is arranged between the two fulcrum plates. The connecting rod assembly is used for transmitting the traction force generated by the elastic assembly to the fixing ring. Based on a traditional gypsum wedge-shaped correction technology principle, through fixing of the fixing ring, sliding adjustment of the connecting rod assembly and angle adjustment of the fulcrum plate, continuous and stable traction force provided by the elastic assembly is matched, correction stress is accurately transmitted to a limb malformation part, the progressive correction effect is achieved, clinical operation steps are simplified, and the operation efficiency is improved. And the working intensity and the operation difficulty of medical staff are reduced.

The utility model discloses an external fixing device for a dialysis tube, which relates to the technical field of dialysis tube fixation and comprises a peritoneal dialysis waistband, magic tapes are respectively sewn at the end parts of the peritoneal dialysis waistband, the front end of the peritoneal dialysis waistband is connected with a storage pocket, and shoulder straps are symmetrically distributed at the left end and the right end of the peritoneal dialysis waistband. According to the peritoneal dialysis belt, the two sets of shoulder straps are arranged, the device can be hung on the shoulders of a patient so as to effectively prevent the peritoneal dialysis belt from sliding down when the peritoneal dialysis belt is used, the protection effect on an affected part can be effectively guaranteed, the connecting block and the limiting block are arranged, and in the using process, the connecting block and the limiting block are not prone to falling down. Through mutual cooperation of a connecting block and a limiting block, the use length of a shoulder strap can be adjusted to meet the use requirements of patients with different body types, so that the applicability of the device in the use process can be effectively improved, a worker can conveniently separate the shoulder strap from the peritoneal dialysis waistband through cooperation of a son buckle and an anti-skid block, and the practicability is high. Therefore, replacement and maintenance of the shoulder straps are realized.

The utility model discloses an external fixing device reliable in fixation, which comprises a bag body with an inner cavity, a plurality of hollows penetrating along the thickness direction are arranged on the bag body, a liquid injection port communicated with the inner cavity is arranged on the bag body, a curing agent is filled in the inner cavity, and the external fixing device is characterized in that at least one exhaust port communicated with the inner cavity is arranged on the bag body. A gas one-way valve is arranged on the exhaust port; the in-vitro fixing device has the advantages that air in the inner cavity can be exhausted in time in the pouring process of the curing agent and is prevented from entering the curing agent again, the hardness of the cured curing agent is guaranteed, and therefore the in-vitro fixing device can reliably fix fracture or sprain parts. And the liquid injection port is provided with the liquid one-way valve, so that the curing agent only enters the inner cavity and does not flow out, and the flowing curing agent is prevented from flowing back and overflowing out of the bag body in the injection process.

The application discloses a laryngeal external fixing device for laryngeal microsurgery, which comprises a fixing disc and at least one bandage arranged at two ends of the fixing disc; the fixing disc is arc-shaped and is provided with four screws; the head end of the screw is located at one side of the fixing disc; the tail end of the screw is connected with a pressing sheet and is located at the other side of the fixing disc; the outer edge surface of the pressing sheet is wrapped with a flexible pad; the opposite positions of the four screws are respectively corresponding to the incisure, the left lamina and the right lamina of the thyroid cartilage and the annular cartilage; the laryngeal external fixing device can press the thyroid cartilage and the annular cartilage and saves manpower.

The invention discloses an orthopedic external fixing device and a using method thereof, and relates to the technical field of medical instruments, the orthopedic external fixing device comprises a fixing frame, a fixing assembly and a clamping assembly, the fixing assembly comprises a fixing sliding block, a lifting fixing block, a fixing limiting rod, a lifting moving plate and a fixing mechanism, and the fixing mechanism comprises a clamping wedge block. The lifting fixing block moves to make contact with the bottom face of the supporting ring, the lifting moving plate moves downwards to drive the clamping wedge block to move, the clamping wedge block moves and extrudes the fixing limiting rod, the lifting moving plate stops moving, the position of the lifting fixing block is fixed, and the fixing sliding block is matched with the lifting fixing block to extrude and fix the supporting ring. By moving the lifting moving plate, the clamping wedge blocks clamp and fix the limiting rods, so that the positions of the lifting fixing blocks are fixed, a traditional fixing mode of bolts and nuts is not adopted, the situation that the fixing bolts are frequently disassembled when the supporting base needs to be adjusted is avoided, and the fixing efficiency is improved.

The utility model relates to the technical field of medical instruments, and discloses an in-vitro fixing device for a central venous catheter, which comprises a bonding sheet and a pressing sheet rotationally connected with the bonding sheet, a guide groove is arranged on the side wall of the pressing sheet, a guide block matched with the guide groove to form a guide area is arranged outside the bonding sheet, and the pressing sheet is arranged in the guide area. A guiding area formed by the guiding groove and the guiding block is in a bent shape, an opening in the end, close to the connecting point position of the bonding piece and the pressing piece, of the guiding area is expanded, a receding groove matched with the guiding area in position is formed in the bonding piece, and a tail connecting limiting piece is arranged in the pressing piece. A bonding layer is arranged on the side, away from the pressing piece, of the bonding piece. An elastic limiting assembly used for limiting the position of the pressing piece is arranged in the pressing piece. The in-vitro fixing device for the central venous catheter has the advantages that the whole section of the in-vitro part of the catheter can be fixed, and the disengagement condition of the catheter can be judged.

The invention belongs to the technical field of medical instruments, and particularly relates to a pressure-adjustable air bag rib fracture external fixing device which comprises a first lining plate and a second lining plate, the upper end and one side of the first lining plate are each provided with a plurality of lock catch belts, and the other side of the first lining plate is fixedly provided with a plurality of connecting belts; the lock catch belt and the second lining plate are connected with each other, and the connecting belt and the second lining plate are connected with each other. Through cooperation of the first air bag in the expanded state and the pressurizing assemblies in the initial states, the thoracic cavity part of a patient can be subjected to small-amplitude overall extrusion, so that the overall fluctuation degree of the thoracic cavity part of the patient is limited; the fracture part can be locally pressurized through the second air bag in the expanded state, secondary displacement of the fracture broken end caused by breathing movement is effectively avoided, and the fixing effect of the fracture part and the comfort degree of a patient in the breathing process are both considered.

The utility model relates to an oscillation device for blood examination, which comprises a fixed cylinder and a rotating disc coaxially arranged in the fixed cylinder, the inner side wall of the fixed cylinder is provided with a limiting groove along the circumferential direction, and the groove bottom of the limiting groove forms a wavy guide rail structure distributed along the circumferential direction; a plurality of oscillation blocks are circumferentially distributed on the rotating disc, elastic connecting parts are arranged at the near ends of the oscillation blocks, rollers are arranged at the far ends of the oscillation blocks, and the rollers are embedded into the limiting grooves and are in rolling fit with the groove bottoms; and when the rotating disc rotates, each roller moves along the fluctuating track of the groove bottom to force the corresponding oscillation block to generate periodic radial swing. According to the device, the wave guide rail drives the oscillation blocks to periodically perform centrifugal and centripetal alternate motion, and meanwhile, the rotating disc is driven to integrally rotate, so that the sample container forms compound motion of horizontal rotation and radial oscillation, and the layering phenomenon of a blood sample is effectively eliminated. Compared with a vertical oscillation structure, the horizontal radial swing mode can prevent the sample container from falling off without an additional fixing device, and the safety performance is improved.

The invention discloses an external fixing device capable of achieving distraction and pressurization, and relates to the technical field of medical instruments.The external fixing device comprises an external fixing support assembly and a pressurization distraction assembly.The external fixing support assembly comprises an external fixing plate, a first fixing screw and a second fixing screw; the first fixing screw and the second fixing screw are both in threaded connection with the outer fixing plate, the pressurized distraction assembly comprises a pressurized distraction fixing plate, a supporting rod and a pressurized distraction fixing screw, the supporting rod is in threaded connection with the pressurized distraction fixing plate, and the pressurized distraction fixing screw is used for fixing the pressurized distraction fixing plate. The supporting rod is detachably connected with the outer fixing plate. The external fixing device capable of realizing distraction and pressurization can realize distraction and pressurization of bones and can also realize fixation of the bones.

The invention relates to the technical field of medical instruments, in particular to a dialysis tube in-vitro fixing device for kidney diseases, which comprises a main band body for fitting a human body and an adjusting assembly for fixing a dialysis tube, an arc-shaped shaping piece is embedded in the main band body, and fixing parts which are detachably connected are arranged at two ends of the main band body; the adjusting assembly comprises an adjusting seat which is in sliding fit with the main belt body, a self-adaptive clamping mechanism is arranged in the adjusting seat, and the self-adaptive clamping mechanism is used for synchronously adjusting the clamping distance in the radial direction of the dialysis tubes so as to fit and fix the dialysis tubes with different diameters; a buffering assembly is further arranged between the main belt body and the adjusting base and used for absorbing external force generated when the dialysis tube is pulled. The dialysis tube fixing device is used for achieving self-adaptive stable fixing of the dialysis tube.

The invention discloses an implantable drug delivery device non-injury needle external fixing device which comprises a bonding layer, a gauze pad arranged on the bonding layer, a bottom plate arranged on the gauze pad, a frame arranged on the bottom plate, a lower rubber pad arranged in the frame and a cover plate hinged to the frame and used for pressing and fixing a non-injury needle on the lower rubber pad. The inner side face of the cover plate is provided with an upper rubber pad attached to the damage-free needle, the frame is further provided with an elastic buckle matched with the edge of the cover plate, and the bottom plate, the gauze pad and the adhesive layer are provided with U-shaped notches for avoiding the damage-free needle. The non-invasive needle can be reliably fixed, and the problems that the non-invasive needle is loosened and liquid medicine is leaked out can be solved.

The invention relates to the field of medical instruments, in particular to an external fixing device for clavicle fracture, which comprises a clavicle belt, a pressure pad is arranged on the clavicle belt, a covering groove is formed in one side, close to the clavicle, of the pressure pad, and isobaric fitting components are symmetrically arranged on two sides of the covering groove and are used for isobaric fitting with the clavicle based on the clavicle form. Self-adaptive adjustment and fitting can be carried out according to the individualized clavicle form of a patient, so that individualized fixing is achieved, and fracture healing is better promoted.