128 results about "Endoscopic treatment" patented technology

An endoscopic treatment device is used with an endoscope. This treatment device includes a transmission member with a flexible structure having a distal end portion to be inserted into a body and can be operated outside the body, a push rod coupled to the distal end portion, and first and second connecting members rotatably coupled to the push rod. The treatment device further includes first and second arm members rotatably coupled to the distal end portion of the connecting member, a holding member rotatably holding the respective arm at a predetermined interval therebetween, and first and second actuating members integrally formed with the arm members and can open / close when the transmission member actuates the first and second connecting members and the first and second arm members through the push rod. This device also includes a needle mounted on at least one of the first and second actuating members.

An endoscopic treatment system is designed to suture or resect a lesion while ensuring the ease of insertion into a deep region in the large intestine. The endoscopic treatment system comprises an endoscope and a therapeutic instruments insertion aid into which the endoscope is inserted. The endoscopic treatment system further comprises: a pair of clamp forceps that clamps and lifts a living-body tissue; a lateral hole formed in the therapeutic instruments insertion aid and used to control the position of the living-body tissue clamped and lifted by the pair of clamp forceps or to control the lifting thereof; a ligature used to ligate the living-body tissue whose position or lifting is controlled by the lateral hole; and a cutter used to resect the living-body tissue at a position between a region ligated with the ligature and a region clamped and lifted with the pair of clamp forceps.

An endoscopic treatment device is used with an endoscope. This treatment device includes a transmission member with a flexible structure having a distal end portion to be inserted into a body and can be operated outside the body, a push rod coupled to the distal end portion, and first and second connecting members rotatably coupled to the push rod. The treatment device further includes first and second arm members rotatably coupled to the distal end portion of the connecting member, a holding member rotatably holding the respective arm at a predetermined interval therebetween, and first and second actuating members integrally formed with the arm members and can open / close when the transmission member actuates the first and second connecting members and the first and second arm members through the push rod. This device also includes a needle mounted on at least one of the first and second actuating members.

In an endsocopic treatment instrument, a distal end of a manipulating wire extending from the distal end of a sheath is provided with a large-diameter portion that is large enough to be incapable of passing through an engagement through-hole in the plate portion of an actuating member. The manipulating wire is passed through the engagement hole until the large-diameter portion contacts one end of the engagement hole, and is bent back toward the distal end of the sheath at the other end of the engagement hole.

In an endoscopic treatment instrument having a plurality of sheaths, a supporting member for directly and indirectly supporting the plurality of sheaths, and a connecting member for directly / indirectly bringing the sheaths and an endoscope in a connected state are provided. The supporting member constrains a relative position of the plurality of sheaths and the connecting member can change the connecting state. Therefore, when an operator changes the connecting state of the connecting member, the positional relation of the endoscope and the plurality of sheaths can be changed, while the positional relation of the plurality of sheaths is still constrained. Accordingly, for example, left and right sheaths can be easily exchanged.

A system configured for endoscopic treatment of tissue is provided. The system includes an elongate shaft having a proximal portion, a distal portion and a working channel extending at least partially through the shaft. The elongate shaft further includes a longitudinally extending central axis. A distal end of the distal portion of the elongate shaft includes a distal tip having a curvilinear portion. The curvilinear portion is configured to dilate a stricture in a gastrointestinal tract for passing a portion of the system through the stricture to the tissue. The distal tip includes a working channel port connected to the working channel.

One of a first endoscopic treatment instrument setting state and a second endoscopic treatment instrument setting state is selectable. In the former state, when a first diathermic snare is removably inserted in a flexible tube, a loop portion is circumferentially broadened and disposed along a first projection portion. In the latter state, when a second diathermic snare is removably inserted in the flexible tube, a loop portion is circumferentially broadened and disposed along a second projection portion.

A treating instrument for an endoscopic treatment has a pair of treating members at the distal end of a sheath. The treating members are opened or closed in a beaklike manner by a control wire axially movably inserted in the sheath. A pair of links of different lengths are integrally connected to the treating members, respectively. A pair of intermediate links of different lengths are rotatably connected at one end thereof to the pair of links, respectively, and driven at the other end thereof by the control wire so as to move back and forth. The shorter intermediate link is connected to the longer link. The longer intermediate link is connected to the shorter link.

An endoscopic treatment tool includes a flexible sheath; an operating member inserted to the sheath so as to freely advance and retract; a treatment section disposed at the distal end of the operating member that protrudes and retracts from the sheath; and an operator section connected to the proximal end of the operating member including a sliding member which makes the operating member advance and retract. The endoscopic treatment tool includes the operating member consisting of a member which increases its rigidity by compression, and a member which compresses the operating member. Therefore a sufficient incision or excision is achieved relative to the distance of movement of the treatment tool by preventing a deflection of the flexible tube when in use.

An endoscopic treatment device is used with an endoscope. This treatment device includes a transmission member with a flexible structure having a distal end portion to be inserted into a body and can be operated outside the body, a push rod coupled to the distal end portion, and first and second connecting members rotatably coupled to the push rod. The treatment device further includes first and second arm members rotatably coupled to the distal end portion of the connecting member, a holding member rotatably holding the respective arm at a predetermined interval therebetween, and first and second actuating members integrally formed with the arm members and can open / close when the transmission member actuates the first and second connecting members and the first and second arm members through the push rod. This device also includes a needle mounted on at least one of the first and second actuating members.

The endoscopic treatment instrument is equipped with a pliable flexible sheath, an operating wire inserted to be freely advancible and retractable in said flexible sheath, a basket provided on the distal end of said operating wire and configured from multiple elastic wires, and a clasp provided at the distal ends of said elastic wires to tie the multiple elastic wires together. The region of said basket of maximum diameter in the radial direction is located closer to the clasp than the midway point in the central axial direction between the proximal end of the basket and the clasp. Each of the multiple elastic wires has a helical shape that is wound in the same direction over the entire length thereof and the winding pitch becomes gradually smaller when moving from the distal end of the operating wire towards the clasp.

A high frequency snare is provided with a snare loop; a control rod of flat plate shape with a cross-section having a long axis direction and a short axis direction; a distal end side connecting member in which a proximal end of the snare loop and a distal end of the control rod are inserted; and a control wire which is elongated in an axial direction of the control rod and connected to the control rod through a proximal end side connecting member. The distal end side connecting member is provided with a first opening end surface in the axial direction. The first opening end surface is formed with inclined surfaces which intersect the axial direction of the control rod and the short axis direction of the cross-section of the control rod and are parallel with the long axis direction of the cross-section of control rod.

An endoscopic treatment instrument is provided comprising: a cylinder adapted to be fitted over a tip of an insertion section of an endoscope; a loop-shaped snare wire which protrudes in the cylinder from a snare sheath that is extendable and retractable with respect to the insertion section and which is extendable within the cylinder; a hooked portion which is formed and radially inwardly extended from the circumference of the tip of cylinder and which holds the snare wire within the cylinder; a locking portion which is provided on the hooked portion and retains a folded-back portion of the snare wire that is forwardly moved toward the cylinder tip with respect to the snare sheath and by means of which the snare wire is turned upside-down around the folded-back portion.

A treatment instrument for an endoscope is provided that is suitable for cutting submucosa in endoscopic submucosal dissection. The treatment instrument for an endoscope includes a treatment portion having a cutting unit at a tip of an insertion portion that is to be inserted into the body. The main unit of the treatment portion is formed in a sawtooth shape having a peak portion and a valley portion. An electrode plate serving as the cutting unit is provided in the valley portion.

An endoscope system has an endoscope; an attachment for the endoscope, having a non-circular irregularly shaped hole that communicates with an opening of a channel of the endoscope and attached to a forward end of an insertion section of the endoscope; and a treatment instrument for the endoscope, having a flexible tube and a treatment section. An extension / retraction section having a non-circular cross section corresponding to the shape of an opening of the irregularly shaped holes is provided at a forward end of the flexible tube, and the irregularly shaped hole restricts rotation of the flexible tube. Further, the treatment section has directivity about its axis relative to the flexible tube and its rotation is restricted.

The invention belongs to the technical field of medical apparatus and instruments, and in particular relates to a multi-purpose nasal biliary drainage tube. The multi-purpose nasal biliary drainage tube comprises a drainage tube section I, a drainage tube section II, a drainage tube section III, a drainage tube section IV, a drainage tube section V and a drainage tube section VI, wherein the drainage tube section I is of straight line type, the drainage tube section II is spiral, and a channel I in the drainage tube section II communicates with the drainage tube section I; the center of the drainage tube section III is bent, the formed angle alpha is 30-45 degrees, a channel III in the drainage tube section III communicates with the channel I, and a channel IV in the drainage tube sectionIII communicates with a channel II; the center of the drainage tube section IV is bent, the formed angle beta is 60-90 degrees, and the drainage tube section IV communicates with the channel III; thecenter of the drainage tube section V is bent, the formed angle gamma is 60-120 degrees, and a channel V of the drainage tube section V communicates with the channel III; the drainage tube section VIis of straight line type, a channel VII in the drainage tube section VI communicates with the channel V, and a channel VIII in the drainage tube section VI communicates with the channel VI. The multi-purpose nasal biliary drainage tube can be widely popularized and applied in the fields including endoscope treatment for the diseases including hepatobiliary and pancreatic diseases.

This endoscopic treatment system is provided with an insertion-retraction and rotating device for a treatment tool, which performs an insertion-retraction operation along a direction of an axis of a treatment tool and a rotating operation around the axis, of the treatment tool inserted in a channel of an endoscope.

Systems and methods are disclosed for the inversion of gastro intestinal diverticula and repair of associated intestinal wall tissue by means of endoscopy through a natural orifice such as the mouth or anus without making incisions in the abdominal wall or opening the peritoneal cavity.

An endoscopic treatment tool includes: a treatment part which is adapted to conduct treatment of tissue within a body cavity; an operation part which is adapted to operate the treatment part; an operation shaft member which connects the treatment part and the operation part; and a coil sheath part through which the operation shaft member passes so that the operation shaft member is capable of forward or backward movement, in which: the coil sheath part comprises: a first coil sheath around which wire is helically wound; and a second coil sheath that has a lower compressive resistance than the first coil sheath, and that has a higher rotation follow-up capability than the first coil sheath; the first coil sheath and the second coil sheath are disposed so as to coaxially and radially overlap; a first end part and a second end part of the second coil sheath are respectively connected to the treatment part and the operation part so as to be incapable of relative rotation around an axis of the second coil sheath; and at least one of the first end part and the second end part is capable of relative movement in an axial direction with respect to the first coil sheath.

An endoscope apparatus for endoscopic treatment is disclosed. The apparatus comprises an endoscopic insertion tube comprising an outer surface including an outer rail formed longitudinally thereon and extending along a portion of the insertion tube. The outer rail has a predetermined shape. The insertion tube comprises an inner channel formed therethrough. An endoscope apparatus for endoscopic treatment is disclosed. The apparatus comprises an endoscopic insertion tube without a working channel and an outer surface including at least one outer rail formed longitudinally thereon and extending along a portion of the insertion tube. The outer rail has a first predetermined shape. At least one medical device includes an outer wall having at least one mounting unit formed thereon along a portion of the length of the outer wall. The mounting unit has a second predetermined shape cooperable with the first predetermined shape. The second predetermined shape is formed to complement and slidably cooperate with the first predetermined shape of the outer rail for slidably attaching the medical device thereto.