35 results about "Parietal peritoneum" patented technology

The present invention is directed to a mucoadhesive delivery system for the local or systemic administration of a pharmaceutical agent. The delivery system of the invention effectively and facilely enables transport of the pharmaceutical agent through mucosal membranes and into the vasculattire of the mucosa. The delivery system includes an at least partially water soluble bioadhesive layer and an at least partially water soluble backing layer. Incorporated within either or both of these layers are the pharmaceutical agent and a mucosal penetration enhancing agent. The mucosal penetration enhancing agent displays localized tissue irritation properties. The mucoadhesive delivery system may be in the form of a gel, film, disc or patch. It may be applied to any mucosal membrane of a patient including but not limited to those of the buccal and nasal cavities, throat, eye, vagina, alimentary tract and peritoneum.

Biocompatible liquid is pumped into a body cavity (eg. subarachnoid space, peritoneum, mediastinum, pleural space) by means of one pump and removed from it by means a second pump, preferably via a double-barreled catheter is used for insertion and removal of the liquid. An optional secondary catheter removes liquid from a distal area of the body cavity. Temperature and pressure are sensed within the cavity and can be controlled by adjusting liquid flow rates. While outside the body, the liquid can be ultraviolet-sterilized, foam fractionated to remove contaminants, oxygenated and pH balanced, cooled or warmed, and augmented with exogenous liquid that may contain drugs.

The present invention relates to devices and methods for the repair of hernia. One method for repairing a hernia the steps of making an incision through a skin layer of a patient near the hernia, creating an entrance into the preperitoneal space above the peritoneum at a location above the hernia, identifying and freeing a hernia sac, creating a pocket in the preperitoneal space, directing a surgical patch down through the incision and into the preperitoneal space, and expanding the surgical patch in the preperitoneal space. The method further includes the steps of inserting a distal end of a surgical fastening device through the incision and into the surgical patch, actuating the surgical fastening device to drive a fastener through the surgical patch and into the tissue of the patient, moving the distal end of the surgical fastening device to another location, actuating the surgical fastening device to drive a second fastener through the surgical patch and into the tissue of the patient, and closing the incision with stitches. One surgical apparatus for repairing a hernia includes a surgical stapling instrument for applying at least one surgical staple to fasten a surgical hernia patch to internal body tissue. The surgical instrument includes a handle assembly have a longitudinal axis. A staple cartridge housing is mounted to the handle assembly and is adapted to receive the at least one staple. The staple cartridge housing is dimensioned for insertion through an incision and has a staple actuator mechanism for applying the at least one staple into tissue. An actuation mechanism is operatively coupled to the staple actuator mechanism to operate the staple actuation mechanism.

Viscera retainer which facilitates wound closure, for example, in the abdominal region, includes a body portion containing a tear seam. The body portion is inserted into the wound prior to closure to act as a physical barrier between the peritoneum and the viscera. A free extension of the body, or an attachment to the body, remains accessible outside the wound while a membranous layer of the abdominal wall is closed. When that closure is almost complete, the body portion is withdrawn from the abdomen by extracting it as a continuous ribbon through an opening. As the ribbon is withdrawn, the body tears along the tear seam generating free ribbon and shrinking the size of the residual body, until the entire body is removed from the abdominal cavity. The closure is then completed. A surgical drain has a planar body portion formed from a wound or wrapped tubular form having perforations in the body portion.

A bilayer patch device for hernia repair includes a first layer and a second layer. The first layer is cut to form locating flakes by cutting lines. The edges of the first layer and the second layer are connected to form a pocket. The second layer further comprises an auxiliary layer. The auxiliary layer further comprises a fin thereof. The patch is able to be flat attached to a cavity of the peritoneum for repairing a hernia.

An aerosol generator 200 is positioned adjacent to a patient as an attachment to a trocar 201. The trocar has an entry port 203 for insufflation gas 208. Aerosol 207 generated by a vibrating element 205 is entrained in the insufflation gas and the mixture 209 is delivered through the trocar 201. The aerosol may contain a medicament. The trocar 201 may be a conventional trocar. Such trocars are typically used for a camera. The delivery of the aerosolised medicament can occur at the start of the procedure and be delivered in bolus. At the start of the procedure, the peritoneum is being inflated by means of the flow of insufflator gas. This gas flow will help to entrain the aerosolised medicament to the pneumoperitoneum regions. The surgeon can temporarily remove a camera from the trocar port to facilitate insertion and positioning of the aerosolising unit.

A trocar obturator for minimal invasive surgery (see FIG. 34) comprising: an apex knife adapted to carrying out an initial incision in a body cavity wall and a knife protecting shield movable between retracted and extended-protecting positions during patient's tissue penetrating. There is a means for locking the shield in its protecting position after piercing a patient's skin. In version embodiment the lock means includes a control knob for shield unlocking, fully disposed in the penetrating head at distal obturator part. This lock means design allows its using along with the knife and shield as the constituents of detachable penetrating subassembly adapted for mounting on the obturator by a quickly acting connector. After piercing the patient's skin, the shield is transformed into a blunt penetrating tip forming a passageway in patient's soft tissue and in peritoneum by a safe manner.

A fluid management system for moving bodily fluid accumulated due to ascites, pleural effusion or pericardial effusion is provided including an implantable pump coupled to an inflow catheter, an outflow catheter, and optionally an anti-clog catheter. The fluid management system facilitates removal of fluid from a body region, such as the peritoneum, pleural cavity or pericardial sac, where drainage is desired to another body region, such as the urinary bladder or the peritoneal cavity. The system includes clog resistant mechanisms such as clog resistant catheters and / or programmed routines for cycling fluid through inlet catheters in predetermined time intervals and / or responsive to sensed conditions to minimize the risk that inlet catheters become clogged due to, for example, tissue ingrowth and / or solid objects within accumulated fluid.

The invention discloses an endoscope puncturing hole stitching instrument, which comprises an operation core and an outer sleeve, wherein at least two wire taking needle guide hole paths are arranged in the operation core; the bottom end of the operation core is provided with at least two positioning blocks; the positioning blocks can be closed and opened and are used for positioning the peritoneum; a wire outlet groove with holes formed in the bottom is formed in each positioning block; wire embedding holes are formed in the operation core; a moving stitching wire is arranged in the wire embedding holes; the wire ends at the two ends of the stitching wires are respectively provided with wire outlet sleeves; the wire outlet sleeves are movably arranged in the wire outlet grooves. The endoscope puncturing stitching instrument has the advantages that the structure is simple; an endoscope puncturing hole can be conveniently and fast closed; the operation difficulty of operation doctors is reduced; the risk of a patient is reduced; the practicability is high; the endoscope puncturing hole stitching instrument can be popularized on clinics.

A glucose sensor assembly useful in patient systems includes an oxygen sensor from which glucose levels in the vicinity of the peritoneal cavity may be inferred. The sensor assembly may be associated with electronics, such as any or all of a DC power supply, an LED source of blue light, a photoreceptor for red light, a CPU, and transceiver, by a direct percutaneous connection. Alternatively they may be associated transdermally with the sensor and some of the electronics being located subdurally. Insulin infusion means are contemplated to respond manually or mechanically to information from the sensors through the CPU. Mechanical response may be automatic. Infusion means may be located subdurally. It is contemplated that the present invention enable revitalization or replacement of fluorescing compounds and glucose oxidase within the sensor assembly.

The invention relates to an automatic water feeder for moistening and irrigating rice, which comprises a trunk pipe, branch pipes and a rice moistening water feed system formed by connecting moistening water feed pipes. An operating channel is left between every two rice field furrows; a peritoneum, of which rice seedlings can protrude out, is covered on the ground surface of each furrow; a row of moistening water feed pipes are respectively installed under each peritoneum; the branch pipes of the moistening water feed pipe adjacent to the trunk pipe in each furrow are respectively provided with a row of moistening water feed pipes; the branch pipes on the moistening water feed pipe adjacent to the trunk pipe in each furrow are respectively provided with a pontoon type dynamic pressure water feed valve; a pressure container is arranged between the trunk pipe and a water pump; the inside of the upper cover of the pressure container is outwardly connected with a programmable pressure controller by a wire through a pressure sensor; the output end of the pressure controller is respectively connected with the water pump and lines of a computer; the pressure controller is installed in a cabinet; an air switch connected with power supply wires and the pressure controller is also arranged in the cabinet. The invention has the advantages of water conservation, continuity and precision, and full automation.

The invention discloses a puncture device for laparoscope operation capable of automatically warning, and belongs to a puncture device capable of automatically warning when an abdominal cavity puncture needle passes through the peritoneum for reminding an operator that the puncture needle passes through the peritoneum. A pair of chutes (1-1) are symmetrically formed in the inner wall of a puncture needle tube (1) relative to the axial line, the lower part in the puncture needle pipe is provided with a sensor plate (1-3), a pressure spring (1-2) is positioned on a pressure sensor (1-3-1) positioned in the center of the sensor plate, the outer surface of a puncture needle core (2) is symmetrically provided with a pair of slide rails (2-1) relative to the axial line, the puncture needle core is positioned in the puncture needle tube, the chutes and the slide rails are embedded, a pressure sensor, a signal converter (1-3-2) and a Bluetooth emitting module (1-3-3) which are in sequential serial connection are arranged on the sensor plate, and the signals are sent to a corresponding computer (3) through the Bluetooth emitting module.

A device and means of attaching an implantable drainage lumen, catheter, or other device to an internal bodily surface, such as the peritoneum, is generally indicated by a biocompatible material or mesh fabric connected to a lumen, catheter, or other mechanical or electrical device whereby the biocompatible material or mesh may be surgically affixed to a tissue or organ by means of sutures, tacks, screws, tissue infusion or adhesion or other means in order to secure an internal drainage, or mechanical / electrical system or component for the prevention of migration or non-optimal CSF reabsorption after installation.

The invention discloses a novel cranial base repair material, comprising two biofilm layers and a support. The support is horizontally arranged between the two biofilm layers. The biofilm is of animalmembrane material, selected from at least one of animal pericardium, peritoneum and omentum majus; the support is a shape memory alloy support, a polymer material support or a ceramic material support. In addition, the invention also provides a preparation method and application of the novel cranial base repair material. The novel cranial base repair material has good biocompatibility, can comprise animal membrane material inducing body tissue repair and the support applicable to human transplanting, has the advantages of good manufacture simplicity, wide range of sources, good convenience ofuse, capability to induce tissue reconstruction and regeneration and the like, can prevent cerebrospinal fluid leakage, soft tissue prolapse and the like, and can provide both mechanical support andtissue regeneration induction.

The protective effect on peritoneum of L-carnitine and its lower alkanoyl derivatives, both in the form of inner or pharmaceutically acceptable salts is disclosed. Concentrations of carnitine from about 0.02 to 0.5% w / v are suitable for preparing a solution for peritoneal dialysis having higher biocompatibility and protecting peritoneum from toxic effects of continuous use of solutions for peritoneal dialysis, in particular ones containing glucose as osmotic agent. A particularly preferred embodiment is a solution for peritoneal dialysis containing carnitine, glucose and xylitol.

The invention relates to the field of medical apparatuses, in particular to an endoscope puncture hole simple suturing device for a surgery. The endoscope puncture hole simple suturing device comprises a puncture needle and an abdominal wall support device, a clamping port for clamping a suture is formed in the end of the puncture needle, and the abdominal wall support device comprises a supporting rod and a cannula sleeving the supporting rod; the supporting rod is provided with puncture holes matched with the puncture needle, a supporting mechanism is arranged at the bottom of the cannula and made from flexible materials, the cannula slides along the supporting rod, and the supporting mechanism is deformed in the radial direction of the supporting rod to form a supporting part used for supporting the abdominal wall; the supporting part is provided with a suture clamping groove used for clamping the suture, the puncture holes are communicated with the suture clamping groove, a sutureend of the suture is reserved outside the abdominal wall in advance, the length of the suture to be pulled to penetrate through the abdominal wall is reduced, and damage of a peritoneum layer cannot be caused; by adjusting the position of the cannula, the supporting range of the supporting mechanism is changed, and the application range of the suturing device is expanded.

The present invention provides one kind of repair unit for tension free repair of inguinal hernia. The repair unit includes one filling up piece to be set in the front peritoneum gap, and one preformed upper layer patch to be set in the surface of the peritoneum. It features that the filling up piece includes one top eave for connection to the upper edge and is one frustum. The present invention has the advantages of high strength and no foreign body sensation.

The invention discloses a puncture separator, and belongs to the technical field of a medical device. The puncture separator aims to avoid secondary puncture of an abdominal wall and reduce acute pulling. The puncture separator comprises a puncture rod, a puncture head arranged at one end of the puncture rod, a puncture clip arranged on the puncture head, a pressing head on the puncture rod, and achuck driving rod at the inner part of the puncture rod; both ends of the chunk driving rod are connected with the puncture clip and the pressing head; the inner parts of the puncture head and the puncture rod are hollow structures, and the puncture rod is a tubular hollow structure. When the puncture separator is applied to punch, the secondary puncture of abdominal wall is not required after puncturing the abdominal wall and before reaching the abdominal wall, thus the secondary injury and ligation of subcutaneous tissues can be avoided; a sharp end of the puncture separator is opened and closed to separate a seminiferous duct from a spermine blood vessel, and avoid the acute separation and pulling; the handle can be better rotated and held.

The invention provides a split abdominal cavity puncture device for a ventricle-peritoneal shunting operation. The split abdominal cavity puncture device is composed of a needle core made of a medical plastic material and a split sleeve and has a length of 8 to 30cm; the needle core has a length of 7.5 To 27cm and a diameter of 0.3 to 0.8cm, the tail portion of the needle core is provided with a handle with a diameter of 2 to 4cm and a length of 2 to 4cm, an upper disc is provided with antiskid patterns which facilitates holding during puncturing for powerful puncturing, and the head portion of the upper disc is in the shape of a sharp three diamond which facilitates penetration of a peritoneum; the split sleeve has a length of 6 to 25cm, an internal diameter of 0.3 to 0.8cm and a thickness of 0.5 to 1mm, the pipe body of the split sleeve is provided with scales, and the split sleeve can predict the depth of entry into the peritoneum during the puncturing; and at the same time, the split sleeve is formed by bonding two semicircular pipes, the two sides of the tail portion of the split sleeve are provided with two handles in parallel, when the handles are pulled forcefully, the split sleeve can be easily split, and the head portion of the split sleeve is polished and dulled so that secondary damage is not caused during the puncturing. The split abdominal cavity puncture device provided by the invention is used for the ventricle-peritoneal shunting operation. Compared to a conventional abdomen opening and tube arrangement operation, the operation time is greatly shortened, the possibility of complications is reduced, the operation is simple and safe, the operation success rate is high, no complications are caused, and the popularization is facilitated.

An assembly for securing a mesh patch to a surface of a peritoneum layer of an abdominal wall. The assembly includes first and second holding members coupled by a suture. After the two holding members are deployed from a shaft, tension on the coupler pulls the first holding member and the second holding member towards each other. Various locking arrangements are disclosed to cause the locking of the first and second holding members in position such that a mesh patch that is positioned against the peritoneum layer is secured thereagainst by one of the first and the second holding members while the other of the first and second holding members is retained against the fascia layer of the abdominal wall. Assemblies and methodologies for all of the foregoing are provided.

The present invention has been made with the aim to provide a surgical instrument, which can be put into a space between a peritoneum and muscle via a tunnel formed at the peritoneum easily and can be pulled strongly in a direction to peel the peritoneum from the muscle in hernia repair surgery or the like. A peritoneal peeling surgical instrument, which is put between muscle and a peritoneum via a tunnel formed at the peritoneum to peel the peritoneum from the muscle, includes: an operation part to be grasped and operated by the user; a shaft part connected with the operation part; a hinge part disposed at the tip of the shaft part; and a hook part connected with the shaft part via the hinge part. In response to operation to the operation part, the hook part is bent at the hinge part with respect to the shaft part and the bending state is fixed in one or more steps. The hook part has: a convex curved surface located at a bending direction side to contact the peritoneum; a flat surface located at a bending direction opposite side to contact the muscle; and a streamline tip part corresponding to the tip of the hook part.

The invention provides a trocar puncturing assisting instrument comprising an operating rod. A lower protecting sheet, an upper protecting sheet and a locating device are arranged on the operating rodfrom bottom to top successively; an adjusting device for adjusting the distance between the upper protecting sheet and the lower protecting sheet is arranged; the middle portion of the upper protecting sheet is provided with channels allowing passing of a trocar. The trocar puncturing assisting instrument has the advantages that, after the upper protecting sheet and the lower protecting sheet areplaced between corresponding abdominal wall layers for building of a space of an abdominal wall cut, the upper protecting sheet can be adjusted upward to make the upper protecting sheet be a certaindistance away from the lower protecting sheet, so that a certain operating space is maintained during trocar puncturing; the locating device is used for location outside a human body; the trocar can penetrate from the channel accurately, so that the operation is simple; the lower protecting sheet can protect peritoneum, so that the trocar puncturing difficulty is reduced, the success rate of surgery is increased and surgery time is remarkably reduced. The trocar puncturing assisting instrument belongs to the field of medical instruments.

The invention discloses an inner ring sealing patch for inguinal hernia and a use method thereof. The inner ring sealing patch includes an upper-layer patch and a lower-layer patch; a memory elastic ring is arranged on each of the upper-layer patch and the lower-layer patch, a finger bag opening is arranged on the lower-layer patch, a spermatic cord opening is arranged on each of the upper-layer patch and the lower-layer patch, and the upper-layer patch is provided with a tongue piece; when in use, the upper-layer patch is folded and clamped by vascular forceps, the lower-layer patch and the upper-layer patch are freed by fingers through the finger bag opening, the lower-layer patch is placed in a gap between a fascia trans versalis and a peritoneum, and with the cooperation of the memoryelastic rings, the lower-layer patch can be flattened better; after a spermatic cord passes through the spermatic cord opening, the tongue piece and the upper-layer patch can be sutured, the upper-layer patch can be quickly flattened better with the cooperation of the memory elastic rings. The upper-layer patch and the lower-layer patch can adhere well to tissues without cutting and patch flattening and are completely suitable for opened preperitoneal repair, and wounds of a patient recover quickly after operation.

The present invention relates to an abdominoscope peritoneum propelling rod. It includes rod body, the lower end of said rod body is equipped with a rod head, and the place of the rod body close to its upper end is equipped with a fixing bar; the included angle between the rod head and rod body is 130-150deg.C, and the tail end of the rod head is made into spherical form.