Abstract: A method for creating space in a joint formed at the convergence of two bones, the method comprising: applying force to a body part so as to separate the two bones from one another by a distance which is greater than the distance that they are normally separated from one another when the joint is in a healthy state, whereby to distract the joint and create an intrajoint space; inserting an assembly of three balloons into the intrajoint space while the assembly of three balloons is in a contracted condition; expanding the assembly of three balloons within the intrajoint space; and reducing the force applied to the body part so that the joint is supported on the assembly of three balloons, with the two bones remaining separated from one another by a distance which is greater than the distance that they are normally separated from one another when the joint is in a healthy state.

Abstract: In one embodiment, the present disclosure relates to an instrument adapted for use in an anterior to psoas spinal access procedure. The instrument includes a body, a first arm and a second arm. A first rod extends from the first arm at an angle thereto while a second rod extends from the second arm at an angle thereto. Each of the first rod and the second rod include a length with a first portion and a second portion, the first portion having a convex surface perimeter and the second portion having a perimeter different from the first portion and being convex in part. In some embodiments, a kit includes the instrument and a blade adapted for use in conjunction with the instrument in an anterior to psoas spinal access procedure.

Abstract: Devices and methods for body conduit lengthening and anastomosis creation can be used to treat patients with a variety of health conditions. For example, among other uses, this document describes esophageal lengthening and anastomosis devices that can be used to remedy esophageal atresia in neonatal patients.

Abstract: Apparatus is provided that includes an implantable tissue anchor for delivery in a constrained state within a deployment tool. The implantable tissue anchor includes an anchor shaft and a tissue-coupling element, which extends from a distal end of the anchor shaft. The tissue-coupling element includes a wire and a tip, which is fixed to a distal end of the wire, and has, at a widest longitudinal site along the tip, a greatest tip outer cross-sectional area that equals at least 150% of an average wire cross-sectional area of the wire. The tissue-coupling element is shaped as an open shape that is generally orthogonal to the anchor shaft when the tissue anchor is unconstrained by the deployment tool. Other embodiments are also described.

Abstract: Methods and devices are provided for anchoring a ligament or tendon to bone. In one embodiment, a surgical implant is provided having a sheath and an expander that is received within the sheath. Various delivery tools, including a sheath inserter and a driver, are also provided. In use, the sheath inserter can be used to position a tendon within a prepared bone hole, and it can be used to deliver the sheath with a guidewire coupled thereto into the bone hole. The driver can be provided for delivering the expander into the sheath. A loader can optionally be used to load the driver and expander onto the guidewire coupled to the implanted sheath.

Abstract: A medical device includes an elongated suture having a tension indicator carried by the elongated suture. The tension indicator signals over-tensioning of the elongated suture when a tensile load applied along an axial direction of the elongated suture exceeds a predetermined tensile load, thereby preventing over-tensioning of the suture and collapsing of the suture. Advantageously, the tension indicator serves as an integrated feedback device that provides instantaneous feedback when tensioning a suture, rather than having to use an external measuring device to determine the amount of tensile load applied to the suture.

Abstract: A device for supporting an endoscopic tool may include opposite first and second arms extending along a first axis. An attachment system is configured to attach the first arm and the second arm to an endoscope. A curved guide for the endoscopic tool is coupled to the first arm, and has an outlet for launching the endoscopic tool. An angled tissue support surface is provided on the second arm, facing the outlet. The outlet is fixable in a working orientation relative to the first axis, and in the working orientation, a recess of the tissue support surface is configured to accept the endoscopic tool when launched from the outlet.

Abstract: A surgical implant comprising a receiver member and deployment member for clamping and sealing tissue of variable thickness, a corresponding applicator tool and surgical system for connecting, sealing, fastening and/or attaching tissue to itself, to other tissue and/or to non-tissue structures, and/or sealing the flow of fluid at and/or between structures such as tissue and vessel structures.

Abstract: A surgical staple includes a body includes a first leg, a second leg, and a backspan. The backspan has a first portion, a second portion, a third portion, and a crimped region. The first portion of the backspan includes a looped member. The second portion of the backspan extends between a first end portion of the first leg and a first end portion of the looped member. The third portion of the backspan extends between a first end portion of the second leg and a second end portion of the looped member. The crimped region includes a crimped section in at least one of the second portion or the third portion of the backspan. A combined wire thickness of the second and third portions of the backspan in the crimped region is about equal to the diameter of the body of the surgical staple.

Abstract: Packaging for a suture, comprising: a base (1) comprising a receiving zone (6, 8) for receiving a suture, a lid (62), means for locking the lid (62) to the base (1), comprising a first slot (58) formed in one among the base (1) and the lid (62), and a first flap (72) formed in the other among the base (1) and the lid (62), wherein the first flap (72) has a shape and dimensions adapted to: be engaged through the first slot (58) when the lid (62) has a first orientation with respect to the base (1), then be blocked athwart the first slot (58) by rotation of the lid (62) from the first orientation to a second orientation of the lid with respect to the base in which the lid covers at least in part the suture receiving zone (6, 8).

Abstract: A staple cartridge assembly of a surgical stapler includes a chassis defining an elongate channel therein, a first electrical connector coupled to the chassis, a staple cartridge body configured for removable receipt in the elongate channel of the chassis, and a second electrical connector coupled to the staple cartridge body and having a memory. The memory has stored therein a parameter of the staple cartridge body.

Abstract: An end effector for a surgical clip applier includes a housing, opposed first and second jaw members extending past a distal end of the housing and each comprising an independent structure movable relative to the other, a first cam track provided on the first jaw member and a second cam track provided on the second jaw member, and a cam providing first and second cam surfaces slidably engageable with the first and second cam tracks, respectively. A biasing device continuously urges the cam in a distal direction relative to the first and second jaw members, wherein the first and second cam surfaces and the first and second cam tracks are angled such that axial movement of the cam in the distal direction relative to the first and second jaw members causes the jaw members to close.

Abstract: A device for retarding birth including an upper ring for surrounding a cervix, an anchoring component for anchoring the device, and an elastic component for attaching the upper ring to the anchoring component, wherein the elastic component pushes the upper ring and the anchoring component apart. A device for retarding birth including a sleeve for surrounding a cervix along a greater portion of a length of the cervix, a support strip on the sleeve directed along an axis of the sleeve, and a ring at least partially around the sleeve, in which when a top of the sleeve is pushed to expand radially, the support strip pivots on the ring, such that an end of the support strip near the top of the sleeve moves radially outward, and an end of the support strip near the bottom of the sleeve moves radially inward. Related apparatus and methods are also described.

Abstract: An apparatus for performing a vascular treatment includes an intraluminal member that is controllingly moved during the vascular treatment. The intraluminal member of the vascular treatment device can be connected to a motor. The rotation direction of the intraluminal member can be reversed to reduce the incidence and duration of vein entanglement during a vascular ablation procedure. Reversal of direction could occur automatically, or in response to a sensor such as a load sensor provided as part of the motorized drive system.

Abstract: The present disclosure relates to compression clips, and more specifically, to compression clips delivered to a target site through an endoscope for use in tissue resection, for example, within the gastrointestinal tract. In examples, clips are configured to be actuatable in response to a compressive force to transition between an open configuration and a closed configuration. In an embodiment, a tissue clipping device may include a first member with a plurality of arms. Each of the arms may extend from a first end to a second end, and the first end of each arm may be received within the first member. The arms may be movable between the open configuration and the closed configuration. A second member may be slidably disposed with respect to the first member.

Abstract: An endovascular catheter combination configured to have multiple capabilities is disclosed. These capabilities include proximal and distal occlusion of a segment of a target blood vessel (such as the carotid artery) thus excluding the segment of the blood vessel from circulation for purposes such as surgical consideration. Another capability includes intravascular shunting of the blood through the excluded portion of the artery during a procedure such as an endarterectomy. Additionally, a microsensor provides a measurement of the rate/volume of blood flow through the distal end of the catheter. In one embodiment, a guidewire is provided with a filtration mesh as an anti-embolic mechanism both at the time of initial positioning of the catheter and after reversing the occlusion.

Abstract: An endoscopic surgical clip applier includes an endoscopic assembly and a handle assembly. The handle assembly includes a housing, a trigger, a drive bar, and a ratchet assembly. The ratchet assembly includes a first rack, a second rack, a pawl housing engageable with the first rack, and a second pawl engageable with the second rack. In a first position, the pawl housing is in registration with the first rack to prohibit reversal of a direction of movement of the trigger until the pawl housing is disposed beyond a proximal end or a distal end of the first rack. In a second position, the pawl housing is out of registration with the first rack to permit reversal of the movement of the trigger after the second pawl is disposed distally beyond a distal end of the second rack or proximally beyond a proximal end of the second rack.

Abstract: A sphincter augmentation device includes a plurality of bodies and a flexible band coupled with the bodies. The bodies define a first circumferential portion of the device and are magnetically biased toward one another. The flexible band defines a second circumferential portion of the device such that the bodies are arranged non-axisymmetrically about a central axis of the device. The device is sized to be positioned around a human urethra so that the bodies and the flexible band bear inwardly against the urethra. The device is configured to transition between a radially expanded state and a radially contracted state by the magnetic bias of the bodies to constrict the urethra.

Abstract: An in-vivo indwelling instrument in which a stretch resistant member at a distal end part of a coil does not easily stray from the coil, and a delivering system for the in-vivo indwelling instrument is disclosed. An in-vivo indwelling instrument includes a coil formed by winding a wire, and a stretch resistant member that is placed in a lumen of the coil. In the view of the coil from a distal side, a part of the wire exists within a central region surrounded by a circle having a diameter of half a maximum outer diameter of the coil and having a center that is a middle point of the maximum outer diameter. The stretch resistant member and a connecting part which is the part of the wire are connected to each other.

Abstract: Apparatus and methods are provided to penetrate a bone and associated bone marrow using a powered driver. The powered driver is operable to insert an intraosseous device into a bone and associated bone marrow. The powered driver may include a housing having a distal end and a proximal end; a drive shaft having a first end disposed within the housing; a motor disposed within the housing and rotatably engaged with the drive shaft; a power supply to supply power to the motor; and a trigger assembly to activate the motor to rotate the drive shaft. A light may be connected to the power supply and operable to illuminate an insertion site for the intraosseous device.

Abstract: Surgical tools for removal of tissue, namely_instruments, devices and methods for surgical tissue cutting with a cylindrical cutting burr bit extending from an elongated hollow member and connected to a shaft for actuating rotation motion of said burr bit to cut/remove tissue from a target location, while mitigating the harm of damaging surrounding tissue.

Abstract: A device for decortication of a bone site is provided. The device comprises an elongated tubular member. The tubular member comprises a rasp configured for oscillating movement of the rasp for decortication of the bone site. The rasp comprises a pressure sensor configured to at least measure pressure from the oscillating movement of the rasp when a predetermined pressure or a predetermined pressure change is measured at the bone site. Methods and kits are also provided.

Abstract: A prosthesis including a hemiarthroplasty cup including an inner surface shaped and sized to accommodate a reamed or unreamed femoral head outer surface, and an outer surface shaped and sized to accommodate a reamed or unreamed acetabulum outer surface of an acetabulum socket, wherein the hemiarthroplasty cup is configured to maintain allowance of articulation of the femoral head outer surface and the acetabulum socket relative to the hemiarthroplasty cup after implantation.

Abstract: A surgical instrument includes a first member defining an axis. A second member is axially translatable relative to the first member. A cutting element is connected with the second member and has a cutting surface. The cutting element is rotatable relative to the second member to transversely move cut tissue. Systems, implants and methods are disclosed.

Abstract: A microelectronic controlled magnetic cleaning system, comprising a micron-scale fine line inner-end part, a micro-scale fine line outer motor control part, and a micro-scale fine line outer system electronic control part. The micron-scale fine line inner-end part is specifically manufactured as a plurality of micron-scale magnetic fine lines, wherein the central magnetic fine lines are slightly wider than the periphery magnetic fine lines. The inner-end part of the central magnetic fine lines is spiral shaped. The micro-scale fine line outer motor control part is made by adding a high-precision micro-motor at the middle portion outside the central magnetic fine lines, When a larger obstruction is found by an endoscope or other optical device imaging system, the central magnetic fine lines can be controlled to arrive at a designated position, and motor speed can be controlled to clean the obstruction.

Abstract: A novel variable diameter aspiration catheter (VDAC) device and method for an enhanced endovascular mechanical thrombectomy technique is disclosed. In an aspect, the use of a VDAC allows endovascular mechanical thrombectomy techniques to be performed with “full flow control”.

Abstract: The invention relates to a thrombectomy device (100), comprising a wire (105), referred to as a “push wire”, attached to a woven structure (110) at the distal end of the woven structure, the woven structure surrounding, at the proximal end of said woven structure, an opening (115) having a diameter that varies on the basis of a configuration of the woven structure, and the woven structure having two configurations: an opened-out configuration in which the woven structure is radially spaced apart from the push wire so as to open the opening surrounded by the woven structure and is axially compressed toward the distal end, and a collapsed configuration in which the woven structure is radially near the push wire and axially extended along the push wire.

Abstract: A mechanical thrombectomy apparatus for removing a clot from a vessel includes an elongate inversion support catheter having a distal end opening, an elongate puller extending within the support catheter, and a knitted tractor tube extending over an outer surface of the support catheter, inverting into the distal end opening of the support catheter, and attached to the elongate puller at a first end within the support catheter, wherein the portion of the knitted tractor tube extending over the support catheter comprises a wire forming a helical spiral of alternating teardrop shaped-links each having a rounded apex, wherein each link is connected to two adjacent links so that the apex of each link is on an outward-facing surface of the tractor tube, wherein the links flare outward from an outer wall of the support catheter when the puller is pulled proximally within the support catheter.

Abstract: A photoacoustic catheter can include an elongate shaft and a first photoacoustic transducer. The elongate shaft can extend from a proximal region to a distal region and can include a first light guide that is in optical communication with a light source. The first photoacoustic transducer can be disposed within the distal region of the elongate shaft and can be in optical communication with the first light guide. The first photoacoustic transducer can impart acoustic pressure waves upon a calcified lesion to induce fractures. The first photoacoustic transducer can include a light-absorbing material and a thermal expansion material that can be in contact with one another. The thermal expansion material can include polydimethylsiloxane, polytetrafluoroethylene, polyimide, polyisobutylene, polyisobutylene polyurethane, polyurethanes, styrene isoprene butadiene, ethylene propylene polyacrylic, ethylene acrylic, fluorosilicone, polybutadiene, polyisoprene, and/or thermoplastic elastomers.

Abstract: A catheter assembly includes a catheter comprising a flexible elongated member including a distal portion that includes a tubular body defining an inner lumen and a plurality of body apertures that extend through a sidewall of the tubular body into the inner lumen, and a plurality of primary electrodes positioned along the tubular body. The catheter assembly includes a wire defining at least one secondary electrode, the wire being configured to be slidably moved through the inner lumen of the tubular body, where the wire and the plurality of primary electrodes are configured to electrically couple to an energy source that delivers an electrical pulse to a fluid in contact with the plurality of primary electrodes and the at least one secondary electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.

Abstract: In embodiments of an obstruction removal device, system, and/or method, a removal tool and an expandable member are configured to be disposed at a distal end of a delivery tool. The removal tool may include peeler wires and hook wires that are configured to at least partially separate an obstruction from an inner surface of a vasculature. The expandable member is configured to at least partially surround the removal tool and is further configured to grasp at least one portion of the removal tool and the obstruction as the expandable member transitions from an expanded state to a contracted state when the delivery tool is removed from the vasculature to remove the removal tool and the obstruction from the vasculature.

Abstract: An end effector includes first and second jaws movable between open and closed positions, a guide track defined in the second jaw, and a cutting element extendable into the guide track and longitudinally movable within the guide track. A retention feature is positioned within the guide track and operatively couples the cutting element to a drive rod. The drive rod is actuatable to move the cutting element within the guide track, and the retention feature is larger than a width of an opening to the guide track such that the retention feature is retained within the guide track as the cutting element moves.

Abstract: A medical device for treating an aneurysm in a blood vessel includes a hollow shaft for insertion into the blood vessel, an exit port at a distal end of the shaft, a deflection element, and a position sensor. The hollow shaft encompasses a wire-insertion channel for leading a wire to be inserted into the aneurysm. The exit port is configured for exiting the wire from the wire-insertion channel and into the aneurysm. The deflection element is located adjacent to the exit port and configured to deflect the wire from the wire-insertion channel to the exit port. The position sensor, which is coupled to the distal end of the shaft, is configured to produce signals indicative of a position and orientation of the exit port in the blood vessel.

Abstract: A surgical tool comprising: a tool body for gripping the tool, the tool body having a longitudinal axis and a first end, wherein a vision enhancer extends from the tool body at the first end, the vision enhancer comprising: a tunnel base, and a first tunnel wall extending from the tunnel base at an angle of between 90 and 120 degrees to the tunnel base, wherein the tunnel base and the first tunnel wall form a concave section for the forming of a tunnel through soft tissue.

Abstract: An intravascular cutting device described herein uses high-pressure water, saline, or other fluid to cut tissue and other materials including but not limited to calcified tissue, stents, stent grafts, and other devices. In some embodiments, the cutting device includes a working end that has a nozzle with a hole to allow the release of a high-pressure fluid jet. Opposite of the nozzle is a catch plate or deflector anvil that prevents the fluid jet from cutting healthy tissue. The device user will place the item to be cut between the nozzle and catch plate and then advance the device along the item to be cut as the fluid jet is activated, thus cutting the object as it advances.

Abstract: A rotational atherectomy device includes a drive shaft, a cutter mechanism coupled to the drive shaft and configured to cut occlusive material from a lesion, and a multi-stage macerator coupled to the drive shaft and configured to macerate cut occlusive material into a fine slurry. Successive stages of the multi-stage macerator macerate the cut occlusive material into successively smaller particles, which are moved proximally through a lumen of a sheath of the device that surrounds the drive shaft proximal to the macerator. The device may include a movable cutter mechanism guard that is passively rotatable between a first position in which it covers the cutter mechanism and a second position in which it exposes the cutter mechanism. One or more features of the device may limit a depth to which the cutter mechanism is able to cut the occlusive material to reduce a likelihood of undesirable tissue dissection.

Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements can be attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, individual abrasive elements are attached to the drive shaft at differing radial angles in comparison to each other (e.g., configured in a helical array). The centers of mass of the abrasive elements can define a path that fully or partially spirals around the drive shaft. In some embodiments, a distal stability element with a center of mass aligned with the longitudinal axis is fixedly mounted to the drive shaft.

Abstract: An apparatus for controlling a needle guide includes a first lever, a second lever, a first cam and a second cam. The first cam is attached to and extends from the first lever to a housing under the needle guide. The second cam is attached to and extends from the second lever to the housing under the needle guide. At least one of the first cam and the second cam is configured to translate rotational movement from the first lever and the second lever to both linear and rotational movement of the needle guide via the housing.

Abstract: Described is a tool positioning system comprising an introduction device, a first tool support and a second tool support. The introduction device is constructed and arranged to slidingly receive an articulating probe. The first tool support comprises at least one guide element constructed and arranged to slidingly receive a first tool. The first tool support is oriented toward a first operator location. The second tool support comprises at least one guide element constructed and arranged to slidingly receive a second tool. The second tool support is oriented toward a second operator location.

Abstract: Various aspects of the present disclosure are directed toward introducer apparatuses, systems, and methods for positioning an implantable medical device within a patient. The introducer may include a housing having a proximal opening and a distal opening and configured to position the implantable medical device adjacent the distal opening prior to ejection and an ejection rod configured to pass through the proximal opening and eject the implantable medical device from the housing through the distal opening of the housing.

Abstract: The disclosure relates to orthopedic medical devices for fixating, immobilizing, and manipulating bones, components of these medical devices, and methods. Specific examples relate to external fixation stabilizers and assemblies suitable for spacing a footplate from the ground. An external fixation stabilizer assembly includes a base member that defines an upper cavity and a lower cavity, a spacer defining a passageway, a connector member partially disposed in the lower cavity and extending into the upper cavity and through the spacer passageway, and a footing member attached to the lower surface of the base member. The spacer is movable between a first orientation on the connector in which a portion of the spacer extends into the upper cavity and a second orientation in which no portion of the spacer is disposed in the upper cavity. The disclosure also relates to external fixation systems, external fixation kits, and various related methods.

Abstract: An orthopedics restoration fixation device includes: a clamping mechanism and a shock absorbing mechanism. The clamping mechanism includes: a first base; a first clamping assembly and a second clamping assembly cooperating with each other and adjustably mounted on the first base; and an adjustment assembly mounted on the first base and configured to move the first clamping assembly and the second clamping assembly towards each other or away from each other. The shock absorbing mechanism is connected to the clamping mechanism and is configured to alleviate an external impact on the clamping mechanism.

Abstract: A bone attachment assembly may include an attachment head, a set screw configured to attach to the attachment head, and a rod surface with a first raised portion and a second raised portion that define a lowered portion positioned between the first raised portion and the second raised portion. The first raised portion, the second raised portion, and the set screw may be configured to directly contact a rod in order to retain the rod within the attachment head.

Abstract: A spinal implant system (10) includes a superior attachment rod (12) coupled to, and articulating with respect to, a roller housing (17), an inferior cross bar member (20) coupled to the roller housing (17), and an inferior attachment rod (14) coupled to the inferior cross bar member (20). At least one of the superior and inferior attachment rods (12, 14) is supported by a flexure assembly (16). The inferior attachment rod (14) is coupled to the inferior cross bar member (20) with a swivel joint (32) and/or a telescoping portion (20).

Abstract: Anterior spinal implant devices for reducing spinal malalignment and associated systems and methods are disclosed herein. A spinal implant system configured in accordance with embodiments of the present technology can include, for example, a first vertebral support implanted at an anterior region of a first vertebra of a patient, a second vertebral support implanted at an anterior region of a second vertebra inferior to the first vertebra, and an alignment system configured to be releasably coupled to the first and second vertebral supports. The first and second vertebral supports can extend into and interlock with each other within an interbody space between the first and second vertebrae when the first and second vertebral supports are aligned. The alignment system is configured to reduce angular, vertical, and linear malalignment of the first and second vertebrae relative to each other.

Abstract: A cortical shaft bone fixation apparatus includes a housing having a leading portion and a trailing portion, the leading portion configured to fit within a diameter of an affected cortical shaft bone, the leading portion having first and second sections. The apparatus further includes an expansion mechanism adapted to transition the first and second sections from a first position to a second position, the first and second sections providing an outward force against the inside surface of the cortical shaft bone when the first and second sections transition from the first position to the second position, the trailing portion of the housing abutting a leading end of the affected cortical shaft bone. The trailing portion of the housing includes a pair of angled tapers extending inwardly toward each other to a minimum separation distance at an extreme end of the housing.

Abstract: Disclosed herein are arthroplasty jigs each having a living hinge that allows the jigs to be snap-fitted on and off bone. The jigs each have a flexible portion and base portion. The flexible portion is adapted to move toward and away from the base portion as the guides are snap-fitted on and off bone. The jigs may include cutting slots for receipt of cutting instrument to resect the bone and/or guide holes to aid in securing the jig to the bone. The living hinge of the jigs is defined by one or more recesses in the body of the jigs.

Abstract: A bone coupling device is configured for joining a first bone piece to a second bone piece which includes a first component having an inner surface bounding a first cavity and a first stem portion for insertion into the first bone piece. A second component includes a second stem portion for insertion into the second bone piece and an axially extending connector extending from the second stem portion and configured to be inserted into the first cavity. The connector has an outer surface which is complementarily shaped relative to an inner surface to inhibit rotation relative to each other when the connector is received in the cavity to engage the first component and the second component.

Abstract: One aspect relates to a method of producing a bone cement from at least two starting components in a device comprising a first hollow cylinder-shaped container and a second hollow cylinder-shaped container, a vessel arranged in the first container, whereby a monomer liquid is stored in the vessel. The aspect also relates to a device for providing a bone cement from two starting components, comprising a hollow cylinder-shaped first container, in which a vessel for a monomer liquid as first starting component can be stored, a hollow cylinder-shaped second container comprising a first internal space, in which a bone cement powder as second starting component can be stored, and a second internal space into which the monomer liquid can be conveyed, a fluid-conducting conveying means arranged between the first internal space and the second internal space, whereby the first container and the second container are axially connected to each other.

Abstract: One aspect relates to a device for providing a bone cement from two starting components, having a hollow cylinder-shaped first container, in which a monomer liquid as first starting component can be stored, a hollow cylinder-shaped second container comprising a container wall, a first internal space, and a second internal space, whereby a bone cement powder as second starting component can be stored in the first internal space, and whereby the monomer liquid can be conveyed into the second internal space, a fluid-conducting conveying means arranged between the first internal space and the second internal space, whereby the first container and the second container are axially connected to each other.