37 results about "Gastrointestinal tubes" patented technology

The invention discloses a non-invasive ventilator mask sealing and fixing structure adaptive to multi-diameter nasogastric tubes, comprising: a separate folding mask assembly which can be opened in a hinge manner and wraps the face of a patient; the middle fixing ring and the separated folding mask assembly are designed in a separated mode, and the middle fixing ring can be fixed to the head of the patient. The elastic conical sealing structure is connected between the elastic conical sealing structure and the middle fixing ring and used for enlarging the aperture of the elastic conical sealing structure so that a pipe fitting can be conveniently inserted, the elastic conical sealing structure is made of an elastic silica gel material, and nose tubes, intestine tubes and stomach tubes of different diameter sizes can be sealed. Compared with the prior art, the sealing and fixing structure for the noninvasive ventilator mask has the advantages that special masks do not need to be replaced for pipelines with different diameters, the universality of the mask is improved, the tube does not need to be pulled out and inserted again when the mask is disassembled, and the sealing and fixing structure for the noninvasive ventilator mask can guarantee the sealing effect and wearing comfort and has important clinical significance.

A double-needle bidirectional barb surgical suture with a buckle ring in the middle comprises a single suture, suture needles are arranged at two ends of the suture, barb suture bodies on two sides of the suture are respectively provided with barbs with barbs pointing to the middle, the buckle ring is arranged in the middle of the barb suture bodies, and the barb suture bodies are made of absorbable materials. After the sutured first needle is used for suturing the tissue, the suture needle on one side penetrates into the buckling ring and then is tensioned, so that the first needle is used for suturing the tissue and is locked, and tissue damage caused by excessive traction of the barb line on the other side of the buckling ring towards the barb opening direction in the traction process when the suture needles on the two sides are continuously used for suturing the tissue subsequently can be avoided; by means of the device, the suture line can be conveniently pulled to twist the intestinal canal in the surgical anastomosis operation process of the gastrointestinal tract, so that an operation operator can conveniently suture the lateral and dorsal intestinal walls, and the gastrointestinal tract operation, especially the gastrointestinal tract anastomosis under a laparoscope, can be facilitated.

The utility model discloses a disposable nasogastric tube, relates to the technical field of medical instruments, and aims to provide a disposable nasogastric tube which not only can ensure rapid and accurate intubation, but also can relieve the pain of a patient to the greatest extent, and comprises a hose and a connecting end, one end of the hose is provided with an arc covered edge, and the other end of the hose is sleeved outside the connecting end. Comprising a connecting pipe used for being connected with a hose, a main port used for feeding or drainage and a flushing port used for air flushing or water flushing, and the main port and the flushing port are both communicated with the hose through the connecting pipe. Damage to the nasal cavity or the gastrointestinal tract inner wall of a patient in the insertion process is avoided as far as possible, and discomfort and pain of the patient are relieved.

The invention relates to the technical field of medical instruments, in particular to a nasal gastrointestinal tube with a tube diameter conversion function, which comprises an intestinal tube and a stomach tube, one end of the stomach tube is connected with a reducer tube, the diameter of one end of the reducer tube is the same as that of the intestinal tube, and the stomach tube is connected with the intestinal tube through the reducer tube; an enteric cavity is formed in each of the stomach tube and the reducer tube, a stomach cavity is formed in one side of each enteric cavity, an air inlet cavity is formed in one side of each stomach cavity, a stomach cavity closing wall is arranged between each enteric cavity and the corresponding stomach cavity, and an air inlet cavity closing wall is arranged between each enteric cavity and the corresponding air inlet cavity. According to the multi-cavity nasal gastrointestinal tube, conversion transition from a multi-cavity tube to a single-cavity tube is smoother, and damage of the outside of the tube body to a human body is greatly reduced; the gastrointestinal tube is welded into a whole, no additional adapter substitute is needed, the inner diameter of the intestinal tube body is effectively enlarged, and sufficient drainage, administration and nutrition delivery are achieved.

The utility model relates to a double-cavity nasal gastrointestinal tube convenient to place, which comprises a first joint, a second joint and a third joint, the first joint comprises a first sleeve and a first central tube coaxially arranged in the first sleeve, the left end of the first sleeve is fixedly connected with the outer wall of the first central tube through a plugging plate, and a connecting tube is arranged on the side wall of the first sleeve; the second connector comprises a second sleeve and a second center pipe coaxially arranged in the second sleeve, a partition plate is fixedly arranged between the right end of the second center pipe and the inner wall of the second sleeve, and a plurality of first via holes are evenly formed in the position, close to the partition plate, of the side wall of the second sleeve in the circumferential direction; two ends of the first hose are fixedly arranged at the right end of the first central pipe and the left end of the second central pipe respectively; the two ends of the second hose are fixedly arranged at the right end of the first sleeve and the left end of the second sleeve respectively; and the left end of the third hose is fixedly arranged at the right end of the second sleeve. The double-cavity nasal gastrointestinal tube convenient to imbedded is identical in overall outer diameter, high in smoothness and convenient to imbedded in a human body.

The invention provides a gastrointestinal nutrition tube and belongs to the technical field of gastrointestinal tubules, the gastrointestinal nutrition tube comprises a tube body, the tube body is provided with a near end, a far end, an adjusting channel and an injection channel, the adjusting channel and the injection channel extend between the near end and the far end, a buffer film is arranged on the outer wall of the tube body, and a feeding hole and a discharging hole are formed in the buffer film. The feeding hole is communicated with the adjusting channel, the discharging hole penetrates through the pipe wall of the adjusting channel so that the buffer film can be communicated with the injection channel, a blocking piece is arranged in the adjusting channel, and the blocking state of the blocking piece on the feeding hole and the discharging hole can be adjusted by moving the position of the blocking piece in the adjusting channel. When the gastrointestinal nutrient canal is used, warm water is injected into the adjusting channel through the second connector, the warm water can enter the buffer film through the feeding hole, the buffer film can expand and block cardia or pylorus, and substances entering the stomach or enteric cavity can be effectively prevented from flowing back from the cardia or pylorus.

The utility model relates to the field of medical instruments, and discloses a nasal gastrointestinal tube multifunctional connector which comprises a connector body, a one-way valve is arranged at the top end of the connector body, a nutrition catheter is fixedly connected to the bottom end of the connector body, a liquid extraction gastral cavity is fixedly connected to one side of the connector body, and the liquid extraction gastral cavity is fixedly connected to the other side of the connector body. The other side of the connector body is fixedly connected with a nutrition enteric cavity, the outer wall of the nutrition catheter is provided with an external thread, the outer wall of the external thread is in threaded connection with a threaded sleeve, the outer wall of the threaded sleeve is provided with an elastic band, and the outer wall of the elastic band is fixedly connected with a first fixing piece. According to the utility model, by arranging the structures such as the external thread, the threaded sleeve, the elastic band, the fixing piece I and the fixing piece II, the connector can be adjusted and fixed beside the body of a user according to the operation convenience of a worker, so that the stability of the connector main body when gastric juice is sucked and nutrient solution is conveyed to the intestinal tract is ensured, and the stability and the safety of a pipeline are ensured.

The invention discloses a gastrointestinal nutrition tube capable of monitoring the pH value of a gastrointestinal tract. The gastrointestinal nutrition tube comprises a detection main body and a gastrointestinal nutrition tube, the side end of the detection main body is connected with the gastrointestinal nutrition tube, and a detection head is fixedly mounted at the front end of the gastrointestinal nutrition tube; through the arranged detection head, the pH value in the gastrointestinal tract can be detected, meanwhile, in order to further guarantee the detection effect during detection, liquid collecting holes are formed in the outer side wall of the front end of the detection head in a circumferential array mode, the upper end face of the inner side of each liquid collecting hole is a plane, and the lower end face of the inner side of each liquid collecting hole is an arc-shaped face. Liquid in the gastrointestinal tract can be better retained through the arrangement of the cambered surface, so that the detection of the probe is ensured, and the detection accuracy is ensured; meanwhile, the liquid collecting holes can be flushed through the flushing pipe, and the problem that the liquid collecting holes are blocked due to long-time staying of the gastrointestinal tube can be effectively solved through flushing.

The embodiment of the invention provides a visual three-cavity nasal gastrointestinal tube kit. The visual three-cavity nasal gastrointestinal tube kit comprises a catheter, a balloon and a camera shooting assembly. The catheter is provided with an intestinal tube section and a stomach tube section, a supply opening is formed in the intestinal tube section, a suction opening is formed in the stomach tube section, a supply cavity channel, a suction cavity channel and an air inlet cavity channel are formed in the catheter, the suction cavity channel is formed in the stomach tube section and communicated with the suction opening, the supply cavity channel is communicated with the supply opening, and the balloon is arranged on the catheter in a sleeving mode and communicated with the air inlet cavity channel. The camera shooting assembly comprises a camera and a wire, the camera is arranged at the end, away from the stomach tube section, of the intestinal tube section, the wire is arranged on the outer surface of the catheter and fixed to the catheter, the wire extends along the catheter, and one end of the wire is connected to the camera. The visual three-cavity nasal gastrointestinal tube kit can be inserted into the stomach and the intestinal tract through the nasal cavity and extend to the stomach and the intestinal tract, nutrient solution or medicine can be conveyed into the intestinal tract through the supply port, body functions are helped to be maintained, rehabilitation is promoted, reflux substances in the stomach can be sucked through the suction port, stomach stimulation is avoided, and the reflux risk is reduced.

1. The name of the design product: gastrointestinal tube. 2. The use of the design product: for feeding and negative pressure drainage or feeding and cleaning in the gastrointestinal tract of patients. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1. 5. Other circumstances that need to be explained: part A is transparent material.

1. The name of the design product: disposable visual nasogastric tube handle. 2. The use of the design product: suitable for endoscopy handle. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention relates to the technical field of gastrointestinal tubes, in particular to a corrosion-resistant enhanced gastrointestinal tube which comprises a main intestinal tube, an outer sleeve is arranged on the outer side of the main intestinal tube, and a mounting ring is arranged between the main intestinal tube and the outer sleeve for connection. The end, away from the mounting ring, of the outer sleeve is provided with a butt joint pipe, the butt joint pipe is matched with the main intestinal tube, and a plurality of adjusting assemblies are arranged in the main intestinal tube. A double-layer structure composed of the main intestinal tube and the outer sleeve is constructed, multiple fusion of a conveying function, electromagnetic regulation and control and structure protection in a gastrointestinal path is achieved in combination with the multi-section adjusting assembly and the modular connecting ring piece, the outer sleeve is arranged on the outer side of the main intestinal tube, and accurate butt joint is conducted through the mounting ring; and good operation convenience and structural stability are ensured in the maintenance, replacement and disassembly processes.

The gastrointestinal decompression drainage device convenient to operate comprises a compressor, a liquid collecting bag and a connecting pipe, the compressor is provided with an upper top face, a lower bottom face and a compressed air bag body, the compressed air bag body is arranged between the upper top face and the lower bottom face, the left side and the right side of the upper top face are provided with a liquid inlet and an air vent respectively, and the liquid inlet is communicated with the air vent. The liquid inlet is communicated with the compressed air bag body, a connecting tube is connected to the liquid inlet, the other end of the connecting tube is connected with the gastrointestinal tube, and a liquid outlet is formed in the middle of the lower bottom surface and communicated with a liquid collecting bag. According to the negative pressure drainage device, the connection tightness of the negative pressure generation tube and the drainage bag can be further improved, the connection stability is improved, the drainage device is convenient to carry and use, and operation and use of nursing staff are facilitated.

The invention relates to the technical field of medical equipment and wireless communication, and discloses a UWB-based gastrointestinal tube video data wireless transmission method and device, and the method comprises the steps: obtaining an in-vivo video stream and a temperature reading, and carrying out the synchronous compression; performing encryption and signal intensity adjustment according to the compressed data to obtain a to-be-modulated data packet; performing UWB modulation and adjusting the transmission frequency based on bit error rate feedback; a receiving end demodulates, decrypts and decodes and performs time axis alignment; and after secondary encryption, distributing to a diagnosis system for decryption and display. According to the method, low-delay, high-reliability and high-synchronism secure transmission of in-vivo high-bandwidth data is realized.

The invention relates to the technical field of medical instruments, in particular to a medical gastrointestinal tube built-in guide wire electronic track analysis system and analysis method. According to the system, a guide wire body is sequentially provided with sensing units in the length direction, and the sensing units are connected to a data interface module through a signal transmission line in the guide wire; the data interface module is used for receiving original sensing data acquired by each sensing unit and converting the original sensing data into sensing data frames; the mobile terminal processing device establishes connection through a wireless communication protocol so as to receive the sensing data frame and analyze the sensing data frame to obtain multi-dimensional sensing parameters; the track calculation module constructs a guide wire kinematics model based on the multi-dimensional sensing parameters and calculates and generates real-time three-dimensional motion track data, and meanwhile, comparison is carried out to generate a track matching degree score; and the feedback output unit generates real-time operation guidance information according to the track matching degree score and outputs the real-time operation guidance information. The motion trail of the gastrointestinal tube can be monitored and analyzed in real time through a built-in guide wire electronic trail analysis technology.

The invention belongs to the technical field of medical instruments, and discloses an extendable gastrointestinal decompression tube suitable for upper gastrointestinal cancer surgery, which comprises a tube body, a through main drainage channel is arranged in the tube body, the tube body is divided into a far-end straight tube section, an extendable section and a near-end straight tube section, a far-end anchoring head is arranged at the end of the far-end straight tube section, and a near-end anchoring head is arranged at the end of the near-end straight tube section. A main drainage hole is formed in the end of the far-end anchoring head, a drainage side hole is formed in the side wall of the far-end straight pipe section, and the main drainage hole and the drainage side hole are communicated with the main drainage channel. The extendable section is a corrugated pipe; the tail end of the near-end straight pipe section is detachably connected with an activation and connection module; in an initial state, the corrugated pipe is in a contraction state, and under the traction of external force, the corrugated pipe is subjected to plastic deformation, is straightened and is kept in an extension state without retraction. The decompression tube can avoid potential damage to an anastomotic stoma caused by blind insertion of a stomach tube after a traditional operation, so that the risk of complications such as bleeding, edema and even fistula of the anastomotic stoma is effectively reduced, the operation safety is improved, and the operation difficulty of placing the gastrointestinal tube is remarkably reduced.

The present application relates to a kind of gastrointestinal endoscope with support function, comprising: gastrointestinal tube part and support part, the gastrointestinal tube part with the support part detachably connected, the gastrointestinal endoscope further includes adjusting module, the adjusting module is configured as: when the gastrointestinal endoscope is in inclined plane, the area of the G1 end of the support part parallel to the direction of gravity component of inclined plane generates pressure to the adjusting module so that the adjusting module generates compression deformation, the adjusting module in turn generates force F1 to the area of the G1 end, and, the area of the support part opposite to the G1 end generates tension to the adjusting module so that the adjusting module generates tensile deformation, the adjusting module in turn generates force F2 to the area opposite to the G1 end, force F1 and force F2 equal in size but opposite in direction, so that support part keeps balance.

The invention relates to the technical field of medical endoscope auxiliary instruments, in particular to a disposable gastroscope synchronous gastrointestinal tube implantation device with a rapid separation mechanism. The gastroscope comprises a gastroscope body and a gastrointestinal tube body, the gastroscope body is connected with a handheld operation portion in the gastroscope and used for being inserted into the body of a patient, and the gastrointestinal tube body and the gastroscope body are coaxially arranged; the endoscope body is of a split type structure and comprises a fixed tube communicated with the inside and the outside of a patient, a rotating tube used for being inserted into the stomach and intestine of the patient and a camera for displaying images in the stomach and intestine in real time. In the process that the gastrointestinal tube body is inserted into the stomach and intestine of a patient along with the rotating tube, if the camera observes that the gastrointestinal tube body to be separated right faces the swelling position in advance, normal saline introduced into the fixed tube is pressurized through the endoscope injection tube and is injected to the sunken side of a blade at a certain inclination angle. The blades are deflected by a certain angle by energy instantly generated when the water column impacts the blades, and the grooves which originally directly face the swelling position of the small intestine cavity are rotated away from the position.

The present application belongs to the technical field of medical manufacturing, and particularly relates to a gastrointestinal integrated tube and a preparation method thereof. The tube body comprises a gastric tube segment and an intestinal tube segment. The gastric tube segment is of a single-cavity structure, and the intestinal tube segment is of a three-cavity structure. The preparation method comprises the following steps: (1) raw material preparation: mixing a polyurethane base material with an antistatic agent and an antibacterial agent; (2) gradient extrusion molding: feeding the functionalized polyurethane raw material into a double-screw extruder, and realizing the molding of the tube body of the integrated tube by means of a multi-stage hydraulic die; (3) dynamic cavity number regulation: in the extrusion process, the core mold switching system is controlled by a mechanical arm; and (4) post-processing: water cooling and sizing and surface coating treatment are performed on the tube body of the integrated tube. The core mold of the present application can quickly switch and adjust the cavity number, meet different clinical functional requirements, improve the functional expandability and operation convenience, and has high product size precision and good mechanical properties, can withstand external force and is durable, and at the same time has good antistatic, antibacterial, lubricating and biocompatibility, and is particularly suitable for fine treatment scenes such as pediatrics.

1. The name of the design product: nasogastric tube fixing sticker. 2. The use of the design product: for fixing stomach tube, gastrointestinal tube. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: front view. 5. The design product is a flat product, omitting bottom view, top view, left view, right view.

The blind insertion three-cavity nasal gastrointestinal tube comprises a claw-shaped connector, and a main intestine port is formed in the front end of the upper portion of the claw-shaped connector. A side intestine port and a stomach port are respectively formed in the side ends of the upper part of the claw-shaped connector; a pipe port is formed in the lower portion of the claw-shaped connector and connected with a thick pipe. A first cavity, a second cavity and a third cavity are formed in the thick pipe, and the first cavity, the second cavity and the third cavity are not communicated with one another; the main intestine port is communicated with the first cavity; the side intestine port is communicated with the second cavity; the stomach port is communicated with the third cavity; the other end of the second cavity is connected with a thin tube; a plurality of first side holes communicated with the third cavity are formed in the side part of the thick pipe; and a plurality of second side holes are formed in the thin tube. The stomach and intestine pressure reducing device can reduce the pressure of the stomach and intestine while meeting nutrition supply in the stomach and intestine, and improves the comfort level of a patient.

The utility model discloses a gastrointestinal cannula which comprises a stomach tube, a duodenum tube is arranged in the stomach tube, a guide wire is arranged in the duodenum tube, the stomach tube is provided with a slidable fixing device, and the stomach tube penetrates through the fixing device. The fixing device comprises a soft layer, a hollow plug which abuts against the soft layer and has a trapezoidal section is arranged in the soft layer, a supporting strip is fixedly connected to the inner wall of the hollow plug, a nose paste is fixedly connected to the periphery of the hollow plug, a limiting ring is fixedly connected to the inner periphery of the supporting strip, and the limiting ring is fixedly connected to the inner periphery of the supporting strip. When the gastrointestinal tube is used, in order to prevent the gastrointestinal tube from falling off, the gastrointestinal tube needs to be fixed, firstly, the gastrointestinal tube is placed in the soft layer, then the soft layer is inserted into the nostrils of a patient, the size of the nostrils of each person is different, the soft layer is tightly plugged into the nostrils of the patient through the plug, and the gastrointestinal tube is prevented from falling off. The fixing effect is achieved, and the existing problems are solved.

1. The name of the design product: disposable nasogastric tube. 2. The use of the design product: for feeding, administering, draining or gastrointestinal decompression of patients, the light source at the distal end of the nasogastric tube is used for illumination or indicating the position of the distal end of the nasogastric tube. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: front view. 5. Other circumstances that need to be explained: in the perspective view 1, mark 1 is the light source.

1. Name of the designed product: gastrointestinal tube. 2. Use of the designed product: for gastric nutrition supply and gastrointestinal decompression. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

The invention discloses an automatic telescopic child stomach tube device capable of preventing abdominal distension and regurgitation under noninvasive ventilation. The device is used for preventing abdominal distension of a child patient under noninvasive ventilation. A nasal gastrointestinal tube head, a controller, an automatic breathing machine airflow blocker, a stomach tube body and a supporting strip form a whole, the automatic breathing machine airflow blocker is fixed to the upper middle portion of the stomach tube, in the process of using the stomach tube, medical workers place the stomach tube with the automatic breathing machine airflow blocker into the stomach through the esophagus of a child patient, and the stomach tube with the automatic breathing machine airflow blocker is fixed to the upper middle portion of the stomach tube. After the controller is pressed down, the airflow blocker of the automatic breathing machine fills the gap between the stomach tube and the esophagus, the situation that airflow enters the stomach through the esophagus to cause abdominal distension of a child patient in the application process of the non-invasive breathing machine is avoided, meanwhile, the influence of gastric regurgitation on the child patient is prevented, and therefore the situation that feeding of the child patient is affected by non-invasive ventilation is prevented.

The utility model relates to a multi-cavity gastrointestinal tube which comprises a three-way connector, a stomach tube and an intestinal tube. The three-way joint comprises an intestinal tube sub-joint and a stomach tube joint; a stomach tube interlayer is fixedly arranged on the inner circumferential face of the stomach tube between the stomach tube front end and the stomach tube rear end, the two ends of the stomach tube interlayer are in arc transition connection with the inner circumferential face of the stomach tube, the stomach tube interlayer divides the inner space of the stomach tube into a gastric juice suction cavity and an intestinal tube infusion cavity, and the gastric juice suction cavity close to the stomach tube front end is provided with a through hole communicated with the side edge inlet. A plurality of suction holes are further formed in the peripheral surface of the stomach tube; the front end of the intestinal tube is connected with the rear end of the stomach tube, and an intestinal tube perfusion liquid outlet communicated with the intestinal tube and the interior of the intestinal tube perfusion cavity is formed in the peripheral face of the rear end of the intestinal tube. Compared with a traditional gastrointestinal tube formed through bonding or one-time injection molding, the gastrointestinal tube has the advantages that the connectivity is good, and the outer diameter of the catheter does not need to be increased, so that the self-indwelling trafficability is not influenced.

The invention discloses a disposable nasal gastrointestinal tube and a using method thereof. The nasal gastrointestinal tube comprises a catheter, a tube opening piece is arranged at the far end of the catheter, a transparent cover is arranged at the top end of the tube opening piece, a light source is arranged in the transparent cover, a feeding opening is formed in the far end of the catheter, a light source controller is arranged at the near end of the catheter, and the light source controller is electrically connected with the light source through an electric wire. The top end of the transparent cover is in a circular arc shape, a manifold is arranged at the near end of the catheter and comprises a main pipe and a branch pipe, the main pipe and the branch pipe are provided with detachable protective caps, the main pipe and the catheter are located on the same center line, the nasal gastrointestinal tube is provided with a guide wire, the guide wire is provided with a cap, and the guide wire is placed in the catheter. The cap is detachably connected with the open end of the main tube, and a hydrophilic coating is arranged on the surface of the nasal gastrointestinal tube. The light source at the far end illuminates the intubation path and indicates the position of the nasogastric tube in the body of a patient, the position of the nasogastric tube can be conveniently and rapidly confirmed, the hydrophilic coating is arranged on the surface of the tube, and the intubation success rate is high.

The utility model relates to medical instrument technical field especially a gastrointestinal decompression device, the utility model discloses a suction mechanism, cleaning mechanism and adjusting mechanism, the suction mechanism includes content collection box, liquid inlet end via patient nasal cavity or oral cavity and inserts to the inside of patient gastrointestinal and liquid outlet end with content collection box intercommunication's gastrointestinal tube, and the suction pump that communicates with gastrointestinal tube and the first check valve that can provide gas or liquid from patient gastrointestinal one -way to gastrointestinal tube inside flow and are fixed in gastrointestinal tube liquid inlet end department place, the cleaning mechanism includes with the liquid inlet pipe that communicates with the one end of gastrointestinal tube and is located patient extracorporeal, and the liquid pump that communicates with liquid inlet pipe and the liquid storage tank that communicates with liquid inlet pipe liquid inlet end, the device can avoid the backwash of the washing liquid and the content washed out in the process of flushing to the gastrointestinal of patient and then reduces the impact and the uncomfortable feeling of patient gastrointestinal.

An anchor (20) for anchoring a tube (10) with respect to a pylorus of a patient. The tube (10) may be a bypass tube or bypass conduit for bypassing a portion of the bowel. The anchor (20) may comprise a gastric bulb (22) collapsible for introduction and optionally self-expanding to an operative condition. The bulb (22) may have an open structure of a low pressure chamber. The bulb (22) may be configured to partly collapse in response to stomach contractions. This enables the bulb to exhibit compliance with the stomach contractions, and absorb the contractions. Other embodiments of tubes, anchors, balloons, and stapling, are also described.