695 results about "Body cavity" patented technology

Disclosed is a needle-free applicator that is suitable for administering a solid, amorphous, mono-particulate powder composition into a body cavity of a human patient, which cavity includes a mucosal surface, wherein the applicator comprises:(i) an opaque reservoir comprising said powder composition;(ii) an optional actuating means for generating a force upon actuation of the device by a user; and(iii)a dispensing means through which, following said actuation, said powder composition may be dispensed,wherein said powder composition comprises a pharmacologically-effective dosage amount of an adrenergic receptor modulator, or a pharmaceutically-acceptable salt thereof, encapsulated in an amorphous state along with a pharmaceutically-acceptable carrier material; andwhich powder composition is less than about 4% chemically degraded after storage for:(a) at least about 3 months at 40° C. and 75% relative humidity; and / or(b) at least about 18 months at below about 30° C.; and / or(c) at least about 18 hours at above about 1 million lux of UV light.

A surgical instrument, such as a tissue sealing instrument, is provided with an end effector having first and second movable jaws that define a gap therebetween in the closed position for clamping, sealing and / or stapling tissue. The jaws are movable relative to each other in the closed position to reduce a thickness of least one portion of this gap. This configuration allows the jaws to be moved closer together to reduce the overall size of the instrument when, for example, the instrument is introduced and retracted through an opening in the patient, or maneuvered within a body cavity. The surgical instrument may also have multiple settings for use with different staple cartridges, while still maintaining a fixed dimension between the two jaws for clamping, stapling and / or sealing tissue, providing a more adaptable surgical instrument that allows the surgeon to use different staple cartridges without having to change surgical instruments.

The invention relates to the technical field of medical robots, in particular to an alimentary canal catheterization robot navigation method and system based on multi-modal information fusion. The method comprises the following steps: carrying out real-time data acquisition on a human body cavity by utilizing a multi-mode sensor; the collected multi-modal data is preprocessed; synthesizing multi-modal data, extracting cavity environment characteristics, and establishing a three-dimensional model of a human body cavity in real time; human body cavity environment characteristics are analyzed, and local and global paths are generated; outputting the path to a catheterization robot controller, driving a catheterization robot, monitoring a navigation abnormal state in real time, and collecting and storing the path, the sensor state and operation data in the navigation process; the system comprises a data acquisition module, a data processing module, a three-dimensional model establishment module, a path generation module and a data monitoring module. Through the mode, the environment is comprehensively perceived, the navigation precision and the real-time performance are improved, and the high-precision operation requirement in a clinical complex environment is met.

A medical system includes a control unit that executes control of setting a first period in which cerebrospinal fluid is discharged from a body cavity while a fluid is injected into the body cavity and a second period in which the fluid is not injected into the body cavity and the cerebrospinal fluid is not discharged from the body cavity and alternately repeating the first period and the second period.

The invention discloses a balloon catheter for releasing medicine in a human body cavity. The balloon catheter comprises an outer balloon and an inner balloon located in the outer balloon. The diameter of two ends of the outer balloon is larger than that of the middle; a plurality of rows of semi-through holes are formed in the outer balloon, each row of inner semi-through holes are formed in the longitudinal direction of the outer balloon, and a cutting mark is arranged between every two adjacent semi-through holes in each row; and the inner balloon is a three-stage expansion balloon. The double-layer balloon structure is adopted, in the process that the internal pressure of the inner balloon is gradually increased to push the outer balloon to be gradually expanded, two treatment means of medicine spraying and dilation are executed at the same time, and therefore the treatment effectiveness is improved; the use efficiency of the medicine can be ensured while the medicine can accurately act on the focus; compared with an existing treatment means, the application is wider in application range and non-invasive in treatment, foreign matter does not need to be implanted, an instrument does not need to enter a human body cavity for multiple times, and discomfort of a patient during treatment can be greatly reduced.

Today's suppositories are typically packaged individually for digital administration into the anal canal of a patient. A suppository applicator described herein, which works with individually packaged suppositories, can alternatively be shipped in a prepackaged operational arrangement with a suppository to enable the patient to administer the suppository through use of the applicator in a single operation after opening a hygienic wrapper containing the applicator-suppository combination. A method for manufacturing a suppository includes manufacturing the suppository in the presence of and in contact with an element configured to be used to insert the suppository into a body cavity. The method may include using the element to define a shape of the suppository during the manufacturing. The resulting applicator-suppository combination is more hygienic and easier to handle than the separate applicator and suppository and provides more efficiency from time of opening the packaging to time of commencing administration of the suppository.

Medical devices and methods are disclosed. An example medical device for accessing a body cavity along a biliary and / or pancreatic tract may include an elongate member having a distal end and a proximal end. The medical device may have a flexible distal tip. The flexible tip may be steered by applying tension to one or more steering wires extending between the distal tip and a handle located at a proximal end of the medical device. The medical device may be a sphincter.

Embodiments of the present invention provide devices and methods for treating at least one disease by delivering an effective amount of energy and / or an agent to tissue on or near a body cavity wall. The agent may include at least one of a gas, vapor, liquid, solution, emulsion, suspension, or a combination thereof of one or more components. The amount of agent and / or energy delivered is effective to damage or injure tissue, nerves, and / or nerve endings to alleviate disease symptoms.

The invention discloses a drug delivery device in a human body cavity, which comprises an inflatable balloon, at least one part of the outer wall of the balloon is provided with a protective shell, the balloon is provided with an inner cavity, and the protective shell can be dissolved by specific body fluid in the human body cavity; the triggering part is arranged in an inner cavity of the balloon, and the triggering part can react with body fluid to generate fluid to inflate the balloon when making contact with the body fluid, so that the inflated balloon is tightly attached to the wall of a body cavity; the propelling part is arranged in the inner cavity of the balloon and comprises a tissue penetrating component, and the triggering part can generate power to propel the tissue penetrating component; and the containing part is used for containing a medicine preparation, and the triggering part can push and press the liquid medicine preparation contained in the containing part into the pushing part after the balloon is inflated, and injects the liquid medicine preparation into the inner wall tissue of the human body cavity through the tissue penetrating component. By means of the device, macromolecular drugs or preparations can be injected into the inner wall of the human body cavity, such as the tissue of the intestinal wall.

The present invention discloses to surgical port add-on, an adaptor, modules and methods thereof for producing and using a surgical port especially adapted for cleaning surgical tools operable in a body cavity. The invention also discloses a surgical port add-on, an adaptor, modules and methods thereof an adaptor that can be pertaining to the attached in or on a trocar and for use of the same d for cleaning the lens and light source of an endoscope.

A balloon catheter for treating stenosis and / or cancer, preventing stenosis and / or cancer, or reducing recurrence of stenosis and / or cancer, or for treating benign prostatic hyperplasia (BPH) in a non-vascular body lumen; the balloon catheter includes: an elongated balloon; a coating covering an outer surface of the balloon, wherein the coating comprises one or more water soluble additives and a therapeutic agent of an initial drug loading amount; and a length control mechanism (600) that stretches and elongates the balloon during contraction, providing a smaller cross-sectional contraction profile of the balloon for tracking through a body cavity and post-treatment retrieval.

The disclosure relates to a hemostatic device (1) comprising at least one chamber (2) delimited by a membrane (4), each chamber (2) being configured to be fluidically connected to a vacuum source, the membrane (4) being configured to be placed so as to face, at least partially, a bleeding area of a body cavity, the membrane (4) comprising a plurality of holes (6) leading into the chamber (2) and configured to induce a negative pressure in the body cavity when a negative pressure is applied in the chamber (2) by the vacuum source, the induced negative pressure being configured so that the walls of the cavity are attracted to the membrane (4), wherein the membrane (4) has at least two opposite faces (4a, 4b), each face comprising a plurality of folds (8) extending in at least one first direction.

Provided are methods and devices for facilitating the advancement of a catheter device, such as an intracardiac ultrasound examination catheter, through a body wall, such as the septum of the heart. The catheter device is advanced through a subject's vasculature to a first body cavity. The catheter device is coupled to a guidewire previously placed within the vasculature between the first and second cavities. The catheter device is then advanced from the first body cavity to the second body cavity through a body wall separating the first and second cavities. To facilitate this advancement, the catheter device can be magnetically coupled to the guidewire. The magnetic assembly can be provided on a distal portion of a sleeve through which the distal portion of the catheter is advanced. A malleable dilator element can also be provided on the distal portion of the sleeve.

The utility model relates to the technical field of medical instruments, and particularly discloses a body cavity plugging device which comprises a guide rod, a movable part, an outer tube, a core wire and an intercepting part, the far end of the guide rod defines a clamping gap through two clamping parts, the near end of the outer tube extends into the clamping gap, the two clamping parts clamp the outer tube, and the outer tube is clamped by the intercepting part in the first direction. The width of the clamping gap is gradually reduced, the first direction is the extending direction of the guide rod from the near end to the far end, the movable part is movably arranged on the guide rod, the core wire penetrates through the outer pipe, the near end of the core wire penetrates out of the outer pipe to be connected with the movable part, and the intercepting part is connected with the core wire and the far end of the outer pipe. The intercepting piece is configured to deform to block a body cavity when being pulled towards the near end by the core wire; according to the scheme, the wedge-shaped clamping gap is formed by the two clamping parts, so that the friction between the outer pipe and the core wire is reduced under the condition that the clamping and fixing effect on the outer pipe is ensured, and the movement smoothness of the core wire relative to the outer pipe is ensured.

The invention discloses an insertion part and an endoscope, and relates to the field of medical instruments.The insertion part comprises a first section and a second section, the far end of the first section is provided with a front end assembly, the first section is provided with a first channel, the second section is connected with the near end of the first section, the second section is provided with a second channel, and an opening of the second channel is formed in the side face of the second section; the first channel penetrates from the distal end of the first section to the proximal end of the second section. The insertion part is provided with a first channel and a second channel which are relatively independent, and the first channel and the second channel are matched with each other, so that more complex work is realized. The opening of the second channel is formed in the side face of the second section, so that the front end assembly of the first section can be avoided, the size of the opening of the second channel is larger, the situation that the second channel occupies the far-end space of the insertion part is avoided, the size of the end of the insertion part is reduced, and the insertion part can be inserted into a sheathing canal or a human body cavity more smoothly.

The utility model discloses a balloon catheter for releasing drugs in a human body cavity. The balloon catheter comprises a three-cavity catheter, a drug delivery balloon and an expansion balloon, wherein the drug delivery balloon and the expansion balloon are arranged on the three-cavity catheter; the dilatation balloon is located in the drug delivery balloon, a drug delivery space is formed between the outer surface of the dilatation balloon and the inner surface of the drug delivery balloon, nylon strips are arranged on the outer surface of the drug delivery balloon, and drug release micropores are formed in the positions, between the nylon strips, of the balloon wall of the drug delivery balloon. The trachea can be expanded, drug treatment can be performed on narrow positions, multiple instruments are not needed to be matched for use, discomfort of a patient caused by the fact that the multiple instruments enter the airway for multiple times is avoided, and the risk of scratching the trachea is reduced; the dosage can be accurately controlled, and excessive liquid medicine is prevented from entering the human body; the operation is simpler, non-invasive treatment of the natural cavity of the human body can be achieved, foreign matter does not need to be implanted, and the operation can be repeated.

The invention relates to the technical field of surgical instruments, and discloses a variable-rigidity flexible surgical operation arm which comprises a supporting body and a joint part, and the surgical arm body is connected with the joint part; a force sensor is arranged at the joint of the supporting body and the joint part, an ultrasonic sensor, a camera module and a lighting assembly are arranged at the end, away from the joint, of the joint part, and an angle sensor is arranged near the axis position of the joint part. The supporting main body comprises a DEA sensing driver and an SMP variable stiffness layer, and shape sensing sensors are arranged near the SMP variable stiffness layer and the DEA sensing driver; a working channel penetrating through the supporting body is formed in the position, located on the end face of the ultrasonic sensor, of the joint part. The joint part can deform through the DEA driver and can be suitable for the human body cavity environment, precise movement in a cavity is achieved in combination with a series of sensors, and an operation is conducted on a focus through the execution tail end of the operation operation arm; the invention further provides an operation method suitable for the operation arm.

A medical endoscope, comprising an elongated bendable endoscope main body (1). An optical assembly is arranged on the endoscope main body (1), and the endoscope main body is provided with a main channel (11) penetrating the head and the tail thereof. The main channel (11) is provided with a main channel internal opening (111) which enters into a human body when in use and a main channel external opening (112) which is positioned at the outside of the human body when in use. A channel core (2) is arranged in the main channel (11), and a channel core head (21) extends out of the main channel internal opening (111). An inflatable balloon (C) is sheathed on the outer side of the channel core head (21), the maximum outer diameter of the expanded balloon body (C) is greater than or equal to the outer diameter of the head of the endoscope main body (1), and a balloon inner cavity (C0) is connected to the exterior thereof by means of a balloon passage (C00) provided in the channel core (2). When the endoscope becomes stuck during insertion into a living body cavity, a fluid can be filled into the balloon (C) from the exterior of the living body so as to expand the balloon, such that the narrow position of the living body cavity can be expanded in a radial direction, thereby facilitating the continuous advancing of the endoscope main body (1) in the living body cavity.

In some embodiments, apparatus and related methods relate to a skeletal body adjustment device (SBAD) with telescopically connected bodies. For example, the SBAD may include control members configured to induce relative translation between the bodies. In some embodiments, apparatus and related methods relate to a body cavity conforming shunt. As an illustrative example, the shunt may, for example, include selectively deployable contact members. The contact members may, by way of example and not limitation, be configured as anchors, sensors, and / or therapy delivery devices. In some embodiments, apparatus and related methods relate to a multi-layer bladder (MLB) selectively deployable in a body cavity. The MLB may, for example, include sensing and / or delivery components. The MLB may, for example, include control member(s) and / or pressure control(s) configured to control shape, size, and / or pressure of the MLB. In some embodiments, apparatus and related methods relate to a dynamically controlled cerebrospinal fluid (CSF) shunt system.

This invention generally relates to a method for performing an endoscopic procedure. According to some aspects of the invention, the method comprises placing an endoscope shaft within a body cavity at a desired examination point, the endoscope shaft having a proximal end, mid shaft and a distal end, the distal end terminating in an endoscope tip, wherein the endoscope tip is proximal to the desired examination point, positioning a segment of a longitudinally opened overtube over the endoscope mid shaft, wherein the overtube including a longitudinal reclosable seam along an entire length of the overtube, an inner surface, an outer surface, a proximal end and a distal end, a positioning ring adjacent the distal end on the outer surface, at least one sealing band on the inner surface, and an independently positionable occlusion catheter terminating in an asymmetrical occlusion balloon; at least one handle at the proximal end and on the outer surface for grasping and manipulation of the overtube within the body cavity. The method further comprises closing the seam of the segment of the overtube positioned over the endoscope mid shaft to form a longitudinally closed overtube and move the closed overtube over the endoscope shaft as guide within the body cavity and repeat the closing and moving till the overtube reaches the desired examination point, inflating the positioning ring to create a seal between the outer surface of the overtube and a body cavity proximal to the endoscope tip, wherein when inflated the positioning ring expanded asymmetrically around the overtube, inflating the at least one sealing band to create a seal between the internal surface of the overtube and endoscope shaft, passing the independently positionable occlusion catheter terminating in the asymmetrical occlusion balloon through a passageway along the overtube to enter the body cavity at the end of the overtube, manipulating the independently positionable occlusion catheter to a selected point within the body cavity distal to the endoscope tip, inflating the occlusion catheter balloon to create seal between the occlusion catheter balloon and the body cavity, and creating a sealed examination compartment between the positioning ring, the asymmetrical occlusion balloon and the sealing band surrounding the distal end of the endoscope shaft.

There is provided herein a tip section of a multi-viewing element endoscope, the tip section comprising: two or more side-pointing viewing elements positioned at or in proximity to a distal end of said tip section, wherein each of said two or more side-pointing viewing elements having a discrete illuminator associated therewith, wherein the field of view provided by the two or more side-pointing viewing elements covers a front and side views; a working channel configured for insertion of a surgical tool; and a pathway fluid injector for inflating and / or cleaning a body cavity into which the endoscope is inserted.

Provided herein are expandable devices, rail systems, and motorized devices, in one embodiment, an expandable device comprises an expandable sac having a tool housed therein. The expandable device is optionally configured for operation while inside a body cavity. The expandable device optionally comprises at least one rail in the sac, and at least one railed device coupled to the rail for movement there on. Movement of the railed device on the rail is provided by, for example, a motor such as an electromagnetic motor or an inch-worm type motor. Expandable devices can be used, for example, to perform minimally invasive medical procedures requiring access to a body cavity. Expandable devices can also be used, for example, to provide safe and stable transport of instruments to the body cavity.

The invention relates to an instrument for transferring cerebrospinal fluid in a ventricle into a body cavity of other parts of a human body, and particularly discloses an intraventricular hydrops drainage device which comprises a base used for being attached to a bone window of a skull, a confluence cavity and a liquid outlet connector communicated with the confluence cavity are arranged on the base, and the liquid outlet connector is provided with a liquid inlet and a liquid outlet. The flow guide hose is connected to the liquid outlet joint; a tip axially remote from the base; the drainage main body component is used for guiding cerebrospinal fluid in the ventricle to the confluence cavity; the drainage main body component comprises a plurality of micro-catheters; the near end and the far end of each micro catheter are attached to the base and the end respectively, and the near end of the micro central hole of each micro catheter is communicated with the confluence cavity; the micro-conduits are arranged in a plurality of circles in the circumferential direction and the radial direction; a micro drainage structure communicated with the micro central hole is arranged on the tube wall of each micro catheter, and the micro drainage structures are arranged in the circumferential direction and the axial direction of the tube wall of the micro catheter so as to allow cerebrospinal fluid to enter the micro central hole through the tube wall of the micro catheter.

The systems of the invention are comprising an elastically deformable, biocompatible and biodegradable article (100) designed to be inserted into the patient's body cavities. To help insertion of this article into a body cavity of a patient with an insertion aide (104) incorporating said article may be used. An option is the presence or absence of a magnet or ferromagnetic particles inside this article.

The invention provides a bipolar ablation device passing through a human body cavity and an operation method, and the device mainly comprises a needle core which is provided with a first ablation electrode; the needle tube is provided with a second ablation electrode; the needle core is arranged in the needle tube in a penetrating mode, the needle core and the needle tube can move synchronously, the needle core and the needle tube can move relatively, and the first ablation electrode can extend out of or be contained in the needle tube; when the first ablation electrode extends out of the needle tube, an adjustable preset distance is arranged between the first ablation electrode and the second ablation electrode, a puncture tip is arranged at the far end of the needle tube, and a smooth guide structure is arranged at the far end of the needle core, or the smooth guide structure is arranged at the far end of the needle tube, and the puncture tip is arranged at the far end of the needle core. By the adoption of the structure, the preset interval is adjusted to achieve adjustment of the ablation area so as to achieve coverage of a focus. Meanwhile, the smooth guide structure and the puncture tip are arranged on the needle core and the needle tube respectively, so that the puncture ablation capacity is achieved, and meanwhile the situation that in the conveying process, the puncture tip damages the blood vessels of the human body can be avoided.

There is provided a method for suppressing an image artifact in an ultrasound data set of an anatomical structure, the anatomical structure comprising a volume of biological tissue having a first acoustic attenuation and a fluid-filled cavity having a second acoustic attenuation lower than the first acoustic attenuation. The method comprises obtaining a first ultrasound data set of the anatomical structure including the biological tissue and a fluid-filled cavity, the first ultrasound data set comprising a region of interest; processing the first ultrasound data set using computer implemented signal or image processing techniques, wherein the processing includes compensating for the lower acoustic attenuation in the fluid-filled cavity; and obtaining a second ultrasound data set of the anatomical structure including the biological tissue and the fluid-filled cavity, wherein the second ultrasound data set comprises said region of interest and where image artifacts related to the lower acoustic attenuation of said fluid-filled cavity are suppressed relative to said first ultrasound data set.

Components, systems and kits for capturing and / or removing tissue from mammalian bodies may include a tissue container that may be introduced into a body cavity within which a tissue specimen may be placed, cut and removed from the body cavity. Methods of using these components, systems and kits are also described.

Systems, devices, and methods for controlling cooperative surgical instruments with variable surgical site access trajectories are provided. Various aspects of the present disclosure provide for coordinated operation of surgical instruments accessing a common surgical site from different approach and / or separate body cavities to achieve a common surgical purpose. For example, various methods, devices, and systems disclosed herein can enable the coordinated treatment of tissue by disparate minimally invasive surgical systems that approach the tissue from varying anatomical spaces and must operate differently, but in concert with one another, to effect a desired surgical treatment.

An inflatable speculum device for more comfortably and conveniently expanding the vaginal cavity to facilitate visualization of the cervix includes a tube having an interior space. The tube is made of a resiliently deformable material wherein the tube is configured to inflate. A hose is couplable to the tube and is in environmental communication with the interior space of the tube. A pump is fluidly coupled to the hose wherein activation of the pump moves air into the interior space of the tube through the hose thereby inflating the tube. The tube fits within a body cavity of a user whereby the tube is configured to dilate the body cavity when the tube inflates.

Systems, devices, and methods for controlling cooperative surgical instruments are provided. Various aspects of the present disclosure provide for coordinated operation of surgical instruments accessing a common body cavity of a patient from different approaches to achieve a common surgical purpose. For example, various methods, devices, and systems disclosed herein can enable the coordinated treatment of surgical tissue by disparate minimally invasive surgical systems that approach the tissue from varying anatomical spaces and operate in concert with one another to effect a desired surgical treatment.