Abstract: One embodiment having features of the invention is directed to a guide block for an MRI device which has a block body with a proximal face, a distal face, and four parallel passageways extending between the two faces. The first passageway is centrally disposed, the second passageway is disposed vertical or horizontal to the first, the third passageway is located diagonal to the first and has a longitudinal opening in fluid communication with the first passageway, and the fourth passageway is diagonal to the first and in an opposite side of the body from the third passageway. In an alternative embodiment the guide block has at least one passageway that is not parallel to the longitudinal axis.

Abstract: Stabilizing an object in the body of a patient involves the injection of a lower critical solution temperature (LCST) material or other flowable material into the body of the patient so that the material contacts the object. The LCST material or other flowable material then forms a gel in the body such that the object is contained at least partially within the gel and thereby stabilized by the gel such that the object can then be easily fragmented within the body and/or retrieved from the body.

Abstract: Pump cassettes, wound-treatment apparatuses and methods. In some embodiments, a pump cassette comprises: a pump body having a pump chamber, an inlet valve in fluid communication with the pump chamber, and an outlet valve in fluid communication with the pump chamber; a diaphragm coupled to the pump body such that the diaphragm is movable to vary a volume in the pump chamber; and an identifier configured to store one or more properties of the pump cassette such that the identifier is readable by an automated reader to determine the one or more properties. In some embodiments, the pump cassette is configured to be removably coupled to a wound-treatment apparatus having an actuator such that the actuator can be activated to move the diaphragm.

Abstract: Novel methods for the chemical ablation of tissue (e.g. prostatic tissue) are described. These methods include the steps of: (a) providing one or more solid salt dosage form comprising 50-100% w/w salt; and (b) inserting one or more of such solid salt dosage forms into the tissue. The solid salt dosage form is optionally inserted into the tissue under real-time ultrasonic observation. An advantage of the present invention is its ability to eliminate toxic byproducts. For example, where NaCl-based solid salt dosage forms are used to effect localized chemical ablation, the concentration is ultimately reduced to the level of normal saline (i.e., about 0.9%) upon absorption by the body of the subject being treated.

Abstract: A process for producing a catheter comprises mixing ETFE and PTFE in a mass ratio of from 99:1 to 45:55 to form a mixture, forming the mixture into a tubular body, forming a reinforcement layer and a resin layer on said tubular body to form a catheter configured to be positioned in a lumen of a living body, sealingly packaging the catheter to produce a packaged catheter, and sterilizing the packaged catheter with electron beam irradiation.

Abstract: The present invention provides a system and a method for distending a body tissue cavity of a subject by continuous flow irrigation by using a dynamic pump, such as a centrifugal pump, on the inflow side and a positive displacement pump, such as a peristaltic pump, on the outflow side, such that the amplitude of the pressure pulsations created by a the said outflow positive displacement pump inside the said tissue cavity is substantially dampened to almost negligible levels. The present invention also provides a method for accurately determining the rate of fluid loss, into the subject's body system, during any endoscopic procedure without utilizing any deficit weight or fluid volume calculation, the same being accomplished by using two fluid flow rate sensors. The present invention also provides a system of creating and maintaining any desired pressure in a body tissue cavity for any desired cavity outflow rate.

Abstract: A medicament delivery device has a housing for a medicament container and a drive unit for a stopper in the container to expel a dose of medicament, the drive unit having a plunger rod and a dual back-to-back force spring assembly connected to the plunger rod; and a lock and release mechanism connected to the drive unit that has a hold member, and a tubular actuation member linearly slidable in relation to the housing and connected to the rotator member. The hold member is attached to the housing and has a generally tubular lock tube through which the plunger rod extends and two half-cylindrical seats for the dual back-to-back force spring assembly. The lock tube has a resilient lock and release device to interact with both the plunger rod and the rotator member.

Abstract: A system and method of topically applying an anesthetic, or other medication, to one or both lips of the mouth. An applicator device is provided that has a curved first wall, a curved second wall, and a horizontal shelf that joins the first wall to the second wall. The first wall, the second wall and the horizontal shelf combine to define either one or two curved lip compartments. A volume of the anesthetic, or other medication, is placed within the curved lip compartments. The applicator device is partially placed in a person's mouth so that the second wall is positioned between the back of the lips and in front of the teeth. While in this position, the lip of the user passes into the curved lip compartment and is contacted by the anesthetic.

Abstract: Stabilizing an object in the body of a patient involves the injection of a lower critical solution temperature (LCST) material or other flowable material into the body of the patient so that the material contacts the object. The LCST material or other flowable material then forms a gel in the body such that the object is contained at least partially within the gel and thereby stabilized by the gel such that the object can then be easily fragmented within the body and/or retrieved from the body.

Abstract: The invention provides for a urinary monitoring device to monitor for the presence or absence of markers indicative of a urinary tract infection (UTI). The invention also provides for methods of using such a device.

Abstract: Lung conditions are diagnosed and optionally treated using a functional assessment catheter or a functional lung assessment and treatment catheter. A flow restrictive component is initially placed in a bronchus or lung passageway upstream from a diseased lung region. The isolated lung region is then functionally assessed through the catheter, while the flow restrictive component remains in place. If the patient is a good candidate for treatment by occlusive or restrictive treatment techniques, the flow resistive component may be left in place. If the patient is not suitable for such treatment, the flow resistive component may be removed.

Abstract: A fluid injection device includes: a pulse generation section that includes a fluid chamber whose volume is changeable, and an inlet flow passage and an outlet flow passage that are connected to the fluid chamber; a first connection flow passage connected to the outlet flow passage, having an end portion; a second connection flow passage connected to the inlet flow passage; a fluid injection opening formed at the end portion of the first connection flow passage, having a diameter smaller than the diameter of the outlet flow passage; a connection flow passage tube including the first connection flow passage and having rigidity adequate to transmit pulses of fluid flowing from the fluid chamber to the fluid injection opening; and a pressure generation section that supplies fluid to the inlet flow passage.

Abstract: A liquid collection bag is used as a part of an extracorporeal circuit and is connected via a tube to a storage container containing a priming solution. The collection container collects the priming solution from the storage container by a pressure differential between the pressure inside the collection container and the pressure inside the storage container. The liquid collection container is a flexible bag body having a partition part dividing the inside of the bag body into a first space and a second space. In addition, a communication part communicates the first space with the second space.

Abstract: Systems and methods for non-vascular sensor implantation and for measuring physiological parameters in areas of a body where the physiological parameters are heterogeneous. An implant unit is implanted in an area of a body and a foreign body capsule is allowed to form around the implant unit area. A sensor may be directed into a body cavity such as, for example, the peritoneal space, subcutaneous tissues, the foreign body capsule, or other area. A subcutaneous area of the body may be tunneled for sensor placement. Spatially separated sensing elements may be used for detecting individual amounts of the physiological parameter. An overall amount of the physiological parameter may be determined by calculating a statistical measurement of the individual sensed amounts in the area. Another embodiment of the invention, a multi-analyte measuring device, may include a substrate having an electrode array on one side and an integrated circuit on another side.

Abstract: A medical waste fluid collection and disposal system includes a medical waste fluid collection cart including first and second fluid collection canisters. A valve assembly selectively communicates with the canisters and a valve drive system controls the valve assembly. A liquid level sensor is positioned within each of the canisters. A cart processor communicates with the liquid level sensors and the valve drive system. A cart drain line communicates with the valve assembly and a receptacle, a cart flushing line communicates with the valve assembly and the receptacle and a cart data line and a cart power line communicate with the cart processor and the cart receptacle. A station includes a drain pump that communicates with a drainage system and a station drain line, a flushing pump that communicates with a source of washing liquid and a station flushing line and a station processor in communication with the drain and flushing pumps. A station data line communicates with the station processor.

Abstract: A accessory mounting system for use with gastrostomy buttons is herein described. The system consists of an accessory mounting platform and a cap that is able to be manually attached and detached from the accessory mounting platform. The accessory mounting platform can be integrally mounted to either the keeper strap or the head of the gastrostomy button, or it can be attached to the keeper strap of an existing gastrostomy button using a clip integrally attached to its underside.

Abstract: A reduced pressure delivery system for applying a reduced pressure to a tissue site includes a manifold delivery tube having a passageway and a distal end, the distal end configured to be percutaneously inserted and placed adjacent the tissue site. A flowable material is provided and is percutaneously deliverable through the manifold delivery tube to the tissue site. The flowable material is capable of filling a void adjacent the tissue site to create a manifold having a plurality of flow channels in fluid communication with the tissue site. A reduced pressure delivery tube is provided that is capable of fluid communication with the flow channels of the manifold.

Abstract: An ocular implant for treating glaucoma is provided, which may include any number of features. More particularly, the present invention relates to implants that facilitate the transfer of fluid from within one area of the eye to another area of the eye. One feature of the implant is that it includes a proximal inlet portion and a distal inlet portion adapted to be inserted into the anterior chamber of the eye, and an intermediate portion adapted to be inserted into Schlemm's canal. Another feature of the implant is that it can be biased to assume a predetermined shape to aid in placement within the eye.

Abstract: A device for suctioning material out of an instrument channel during an endoscopic procedure. The device includes a biopsy valve having a first end, a second end, and an outer circumferential surface. The biopsy valve defines an internal passage leading from the first end to the second end, wherein the first end is adapted for connection to an endoscope instrument channel inlet port. Tubing connects the biopsy valve second end to a suction source connector disposed remote from the biopsy valve. A flow controller is fixed to the tubing and disposed between the biopsy valve second end and the suction source connector. The device may include an irrigation port and an instrument entry port.

Abstract: A closed specimen collection system for blood samples includes a collection tube that has a shaped nozzle adapted to fit sealably into a port connected to a centrally inserted venal catheter. A protective cover for the nozzle is attached to the collection tube and has an internal, female thread that mates to a male thread on the port. A specimen container has a hollow body, a front end and a back end. The front end has an aperture sized and shaped to attach to the collection tube. The aperture is sealable after removal of the collection tube. A piston fits closely within the hollow body and is attached to an actuating rod. When the port is connected to the collection tube, the collection tube is connected to the specimen container and the actuating rod is pulled toward the back end, blood will flow into the container in a sterile condition.

Abstract: Devices, systems and methods for delivering one or more drugs to one or more internal body locations (such as the cerebrospinal fluid) are disclosed. In various aspects, the systems and methods may involve catheters having infusion sections with permeable membranes and one or more tracking elements that may be used to place the infusions sections on the catheters in selected locations such as the spinal region.

Abstract: A system and device for monitoring pressure in a blood line. In such device, a pressure transducer line branches off a blood line to enable the connection of a pressure transducer. To avoid any contamination of the pressure transducer, a first pressure transducer protector filter is used that divides the pressure transducer line into a blood line section between the blood line and the filter, and a pressure transducer section between the filter and the pressure transducer. A sensor is provided for detecting the presence of liquid in the pressure transducer section of the pressure transducer line so as to provide a system by which an unnoticed failure of the first pressure transducer protector filter in a pressure transducer line is avoided as well as a device that can easily be re-used.

Abstract: A material delivery apparatus for a bone screw includes an attachment member having a lumen disposed therethrough and adapted to removably attach to the bone screw. The apparatus further includes a delivery cannula fixedly disposed through the lumen and adapted to extend into a central bore of the bone screw for the delivery of material thereinto.

Abstract: Devices and methods are disclosed for the control of blood perfusion pressure within a blood vessel that undergoes arterialization. A cannula is introduced that contains a stenosis that either resorbs or is removed in time, allowing a gradual increase in blood pressure between two blood passages connected at either ends of the cannula. Particular emphasis has been made with the use of the cannula for the vessels in the heart.

Abstract: A system and method are disclosed for automatically limiting the drainage of a bodily fluid such as cerebrospinal fluid (CSF) from a patient into a collection chamber. The collection chamber includes a vent having an hydrophobic filter for the passage of air to facilitate the movement of CSF yet to maintain a closed system. The system includes a buoyant float hingedly connected with the top of the collection chamber in one embodiment. When fluid rises in the collection chamber to a predetermined volume, buoyant force raises the float and causes a seal plug mounted on top of the float to seal one of an inflow port or a vent port. The float is limited to pivoting movement in one plane and to a certain angle within that plane. The system and method avoid overdrainage of CSF from the patient and overfilling of the collection chamber.

Abstract: A medical canister connector is presented for connecting to a medical canister, which has a patient port and a reduced-pressure port. The medical canister connector includes a first connection member that is coupled to a patient-port-attachment member, which is for coupling to a patient port on a medical canister and has a patient-port opening with a first longitudinal axis. The medical canister connector also includes a second connection member coupled to a reduced-pressure-port-attachment member, which is for coupling to a reduced-pressure port on the medical canister and has a reduced-pressure-port opening with a second longitudinal axis. A spacing member or pressure transport member may be used to couple the first connection member to the second connection member. The spacing member or transport member flexes and twists during connection. The medical canister connector may also help organize one or more pressure-sensing conduits. Methods are also presented.

Abstract: The device (10) for selective access closure inside a catheter comprises a conduit (14) having a rear extremity (16) for the insertion of a medical instrument and a mechanism (27) for adjusting the cross-section provided within the conduit (14). The mechanism (27) comprises a member (32) for repositioning the device between an opening movement and a closing movement. The direction of movement of the repositioning member (32) along both the closing path and the opening path are identical.

Abstract: Therapeutic device intended for the selective cytoreductive treatment of an obstruction in a natural lumen or passage of the human or animal body, said lumen being obstructed by the effect of a local cell proliferation, said device comprising a tubular element, in particular of cylindrical shape, intended to be placed in said natural lumen and sufficiently flexible to conform to said natural lumen, but sufficiently rigid to maintain an artificial channel in said lumen. The tubular element supports lengthwise a medicinal sleeve which is intended to come into line with, and into contact with, the obstruction once the natural lumen has been intubated, and is designed to deliver locally, at least in its outer surface portion, at least one therapeutic agent which is cytoreductive, in particular cytotoxic, through contact with the cells under whose effect said lumen is obstructed.

Abstract: The present invention relates to an ocular implant, particularly a glaucoma stent. It is the object of the present invention to devise an ocular implant which allows the ocular eye pressure to be regulated, i.e., to be maintained at a desired level, while preventing the flow resistance from increasing over time, for example due to fibrosis. In order to achieve this object, the ocular implant according to the invention comprises a small tube (5), the wall surface (3) of which encloses a hollow duct that is open on both sides in the longitudinal direction of the hollow duct, wherein a first opening (1) allowing ocular humor to flow in and a second opening (2) allowing the ocular humor to be discharged is provided, and wherein the wall surface (3) is formed by a liquid-tight material, and wherein at least one pressure-controlled valve (4) is disposed in the area of the wall surface (3).

Abstract: In one embodiment, an external second medical device is capable of being attached to a patient. The second medical device includes an operation module that is capable of operating at different capacities, such as at a first capacity and a second capacity. The second medical device also includes a receiver for receiving a warning about an impending administration of a first treatment to the patient, by a first medical device that does not know about the second medical device being attached to the patient. In response to receiving the warning, the second medical device undertakes a defensive action, whereby the operation of the operation module is capable of being performed at the second capacity. This way, the first treatment, when administered, will impact the second medical device less or not at all.

Abstract: A retention device for use in a human or mammalian body includes superelastic wires that expand when they are released from a confined state. The retention device may have the outer form of a Foley catheter. One or more superelastic wires within the balloon of a Foley catheter help to insure retention within the body, such as within a urinary bladder.

Abstract: Apparatus for providing intrabronchial delivery of neurotoxins to control the effects of asthma comprises a shaft having proximal and distal ends and a neurotoxin applicator assembly disposed on the distal end. The neurotoxin applicator assembly comprises a deployable needle assembly, a rotating needle assembly, and a needle-less injection assembly or a nebulizer assembly.

Abstract: An apparatus for aspirating, irrigating and/or cleansing wounds (1) using cells or tissues to cleanse the circulating fluid to enhance wound healing by destroying or limiting the harmful substances in the circulating fluid from the wound (5) thus enhancing the beneficial substances.

Abstract: Methods and devices for treating female urinary incontinence by injecting bulking material into the female urethral wall. Some devices include a handle, an elongate member attached to the handle, and a vacuum generating syringe removably secured to the handle. The elongate member can include a distal portion projecting distally from the handle, the distal portion having a wide proximal region, a narrowing shoulder, and a narrow distal region. The elongate member can include one or more vacuum ports on either side of the shoulder region. The shoulder can include a distally facing needle aperture allowing passage of a needle for injecting bulking agent. A rotatable connection between the elongate member and the handle facilitates rotatable positioning of the elongate member to permit injection of bulking material at different locations around the urethral wall.

Abstract: Compliant coatings for insertable medical articles are provided. In some aspects, the coating includes a diene polymer-containing layer, and a second coated layer that includes another polymer. The coating can be formed by coupling the polymer of the second coated layer to the first coated layer via latent reactive groups, such as photoreactive groups. In other aspects, the insertable medical article has a coating that provides different functional features to different surfaces of the article. The medical article can have a cylindrical shape with an interior surface having a first coating, and an exterior surface with a second coating, wherein the article also includes a plurality of openings.

Abstract: Drainage belongs to medical equipment, particularly to medical tools and is specified for drainage of cavities. Drainage comprises a first tube, an additional tube, which is fixed upon it, a unit of the clot's splitter and the splitter's fixing element. The additional tube has a smaller diameter with an opening, inside which the conductor is mounted, a unit of clots splitter is installed on the working end of the drainage, it comprises a cylinder, a tube with an opening, placed on it, which is the continuation of the additional tube of the drainage and a spring with a cutter inside the cylinder. A cutter is located diametrically inside the working head, while in the end of the wall of the first tube and the splitter's unit comprises a channel, inside which splitter's fixing element was led, its working end is inside the unit's cylinder and fixes the splitter.

Abstract: The invention provides a polymeric film-forming medical sealant. The medical sealant is useful for application to the tonsils and adenoids, wherein the sealant performs at least one of the following functions, a) inhibit the colonization of bacteria, b) inhibit the binding of bacteria to tissue, c) reduction of tissue morbidity, d) hemostasis, e) coating and protection of tissue during healing. e) promotion of healing, and f) reduction of pain.

Abstract: A method of minimally invasively reducing a volume of a hyper-inflated target section of diseased lung comprising the steps of introducing a bronchoscope into a patient's airway to a position adjacent the target section and equilibrating air within the target section with atmospheric air to at least partially deflate the target lung section; injecting an inflammation-causing substance into the target section to precipitate adhesion of the walls within the target lung section, preventing substantial re-inflation of the target section by occluding an airway upstream of the target section for a period of time, and removing the airway occlusion after the target section has substantially permanently been reduced in volume. The injected substance can be autologous blood or a constituent thereof.

Abstract: Systems and methods for treating ocular disorders are disclosed. One system has an implant and a delivery device. The implant has inlet and outlet portions, a lumen extending therebetween and communicating with inlet and outlet ports. The implant is sized so that in use aqueous humor flows from an anterior chamber of an eye through the implant and into a uveal scleral outflow path of the eye. The delivery device is configured to advance the implant from within the anterior chamber, with the outlet portion leading the inlet portion, to a location where the outlet and inlet ports respectively communicate with the uveal scleral outflow path and the anterior chamber. One method involves advancing an implant from within the anterior chamber, and draining fluid from therein such that fluid flows into an implant inlet port and out through an implant outlet port and into the uveal scleral outflow path.

Abstract: The present invention is a Miniature Vein Enhancer that includes a Miniature Projection Head. The Miniature Projection Head may be operated in one of three modes, AFM, DBM, and RTM. The Miniature Projection Head of the present invention projects an image of the veins of a patient, which aids the practitioner in pinpointing a vein for an intravenous drip, blood test, and the like. The Miniature projection head may have a cavity for a power source or it may have a power source located in a body portion of the Miniature Vein Enhancer. The Miniature Vein Enhancer may be attached to one of several improved needle protectors, or the Miniature Vein Enhancer may be attached to a body similar to a flashlight for hand held use. The Miniature Vein Enhancer of the present invention may also be attached to a magnifying glass, a flat panel display, and the like.

Abstract: A device for delivery of biologic materials, comprising: a cartridge having at least two cylinder bores for fluids to be delivered, wherein each cylinder includes an exit port for a fluid, a plunger within each cylinder for pushing the fluids out of the cylinder, a housing adapted to receive the cartridge, wherein the housing or cartridge includes an adaptor to receive and lock a manifold that operably connects to the exit ports of the cartridge, at least two toothed rams, wherein each toothed ram is at least partially within a cylinder bore, a trigger connected to the housing, wherein the trigger includes a toothed drive rack, a toothed wheel assembly that cooperates with the toothed drive rack and with the toothed rams, as well as methods of making the device, methods of using the device to treat discs, kits including the device.

Abstract: A reduced pressure delivery system for applying a reduced pressure to a tissue site includes a manifold delivery tube having at least two lumens and a manifold having a plurality of flow channels. The manifold is disposed within a first of the lumens of the manifold delivery tube. A balloon having an inner space and being capable of assuming collapsed and expanded positions is provided. The inner space of the balloon is fluidly connected to a second of the lumens of the manifold delivery tube.

Abstract: The invention relates to a device which is used to inject an implant (6) into tissues (50). The inventive device is characterized in that it comprises: a main hollow body (2; 2?) having a hollow needle (4; 4?) fixed thereto, into which the implant (6) is introduced; a secondary body (26; 26?) which is disposed coaxially inside the main body (2; 2?) and which surrounds the needle (4; 4?); and a plunger rod (36; 36?) which can slide coaxially inside the hollow needle (4; 4?).

Abstract: A multipurpose site guard for use at all peripheral and central venipuncture infusion sites, sensitive areas, and for pediatric and adult patients. The guard is a hollow plastic member with a base and a sidewall curved upwardly and inwardly to form a cover which is form fitted to the infusion site under finger pressure and which can be taped in place. Improvements to this invention include holding the guard in place with a fabric connector having closure means and cushioning the guard's base with a soft material.

Abstract: An apparatus for creating an accessory maxillary ostium for purposes of ventilation, irrigation, or procedural work within the maxillary antrum. An introducer having a ventilation tube and grommet is provided to create and then provide access through the accessory maxillary ostium. An irrigation catheter may be advanced through the ventilation tube in order to irrigate or express the contents of the sinus cavities. A secondary irrigation catheter or a balloon catheter may be advanced through an outer irrigation catheter, deeply into the sinus cavity, in order to irrigate or express the contents of the sinus cavities. Moreover, the balloon catheter may alternatively or additionally be employed to for dilation of the natural ostium. Still further, a device for delivering drugs, fluids or the like, may be coupled to the ventilation tube for delivery of same.

Abstract: The present invention relates to an inserter for an intrauterine system, comprising a handle (3) having a longitudinal opening (8) at its first end, said opening (8) having a longitudinal axis parallel to the longitudinal axis of the inserter, a first end (8a) and a second end (8b), a movable slider (5) arranged in said longitudinal opening (8) and having a first end (5a) and a second end (5b), a plunger (2) attached to the handle (3) and having a longitudinal axis, and an insertion tube (6) having a first end, a second end and a longitudinal axis essentially parallel to the longitudinal axis of the plunger (2), the insertion tube (6) being, along said longitudinal axis, movably arranged around the plunger (2).

Abstract: The present invention relates to an inserter for an intrauterine system comprising a handle (3), and an insertion tube (6) having a first end and a second end, and being arranged in connection with the handle. The inserter is characterized in that the first end of the insertion tube (6) comprises at least one frame slot for receiving a frame of the intrauterine system. The invention also relates to a kit comprising an inserter according to the present invention and an intrauterine system, wherein the intrauterine system (1) comprises a therapeutic component (1b) and a continuous, closed frame (1a), the therapeutic component (1b) being connected to the frame (1a) at least one point, and therapeutic component (1b) of the intrauterine system (1) is at least mainly arranged inside the first end of the insertion tube (6) and the frame (1a) of the intrauterine system (1) is at least mainly arranged outside the first end of the insertion tube (6).

Abstract: It has been determined that gamma sterilization of biodegradable polymer stents does not cause significant polymer cross-linking and collapse. Using sufficient spacing can lead to stents that display little if any detrimental effects from the procedure. In certain embodiments, using structures in the general region of about 100 micron spacing between the struts leads to highly functional stents that do not fuse. Further, the resulting stent has radially homogenous mechanical properties. Therefore, the stent has a uniform expansion within the lumen.

Abstract: Stabilizing an object in the body of a patient involves the injection of a lower critical solution temperature (LCST) material or other flowable material into the body of the patient so that the material contacts the object. The LCST material or other flowable material then forms a gel in the body such that the object is contained at least partially within the gel and thereby stabilized by the gel such that the object can then be easily fragmented within the body and/or retrieved from the body.

Abstract: The invention relates to an endosurgical extraction bag for collecting body tissue or body fluid, with a bag main part formed from a flexible envelope, and with a first admission opening for introducing tissue or fluid into the bag main part of the bag. Arranged in the bag main part, there is an inner envelope which is connected to the main part (bag) and opens toward the first admission opening, but adjoins the bag main part sealingly in respect of the first admission opening, and which has a second admission opening at its second end remote from the first admission opening and spaced apart from an end of the bag main part remote from the first admission opening, through which second admission opening the tissue or fluid can be introduced into the bag main part.