MICRO-TECH (NANJING) CO., LTD.

The present disclosure provides a medical catheter, a surgical instrument, and a medical catheter manufacturing method, which relates to the technical field of medical device. The medical catheter provided by the present disclosure adopts a structure in which a support tube is installed inside an outer tube body and the support tube extends along the inner wall of the outer tube body. This structure not only allows the medical catheter to bend and easily pass through curved channels, but also maintains good structural strength and support when the outer tube body has a small diameter and thin wall. It is particularly suitable for surgical instruments that need to be inserted through narrow channels.

The application discloses a puncture device and a puncture method thereof. In the puncture device, a position limiting member is provided on the second member, and the position limiting member is used to limit the position of the first member, so that the first member can drive the second member to move toward the third member. The catheter is connected to the second member, so that the catheter can move together with the second member. The puncture needle is connected to the first member, so that the puncture needle can be driven to move when the first member moves, and the puncture needle can drive the catheter through the tissue together during puncturing. After that, the puncture needle can be withdrawn, and the catheter can be left in the tissue for subsequent surgical treatment, thereby reducing damage to the tissue during the operation.

The present disclosure provides a lock-cut mechanism and a medical suturing device, which relates to the technical field of medical suturing. The lock-cut mechanism includes: a plug head, an inner tube, an outer tube, a support, and a traction member. The inner tube is detachably connected to the support. The plug head is inserted into the inner tube, and the outer tube is sleeved on the inner tube and the support. The traction member passes through the outer tube, the inner tube, and the plug head, and a distal end of the traction member is provided with a protruding head. A side wall of the inner tube is provided with a first incision, and a side wall of the outer tube is provided with a second incision.

A clip ( 100 ) for use in an endoscopic gastrointestinal procedure includes a first arm ( 110 ), a second arm ( 120 ), and an end effector ( 130 ). The first arm ( 110 ) includes a first proximal end ( 110 b ) and a first distal end ( 110 a ). The second arm ( 120 ) includes a second proximal end ( 120 b ) and a second distal end ( 120 a ). The end effector ( 130 ) is fixedly coupled to the second arm ( 120 ) and extends from the second arm ( 120 ) distally relative to the second distal end ( 120 a ). The first arm ( 110 ) and the second arm ( 120 ) are pivotable relative to each other between an open position and a closed position in which tissue is clampable between the first arm ( 110 ) and the second arm ( 120 ). The end effector ( 130 ) is configured to be inserted into the tissue by rotating the clip ( 100 ) about a first axis ( 130 a ).

A medical device for causing the hemostasis of a blood vessel for use through an endoscope comprises: a handle; a sheath device, which is attached to the handle; a clamp device including a clamp housing provided on the distal end of the sheath device and at least two, in particular exactly two clamp arms; a control wire extending through the sheath device and reversibly movable in the distal and proximal direction; an actuator coupled to the proximal end of the control wire and actuable to reversibly move the control wire in the distal and proximal direction; wherein the clamp arms are each coupled to the distal end of the control wire.

A rapid exchange stent delivery device is provided that relates to the technical field of stent delivery. The rapid exchange stent delivery device releases a stent toward a distal end along a guide wire, and the delivery device includes: an outer tube and an inner tube inserted inside the outer tube; a guide wire inlet is arranged on a distal end of the inner tube, and a guide wire outlet is arranged on a side wall; and the outer tube has an avoiding part extending toward the distal end to avoid and guide out the guide wire extending from the guide wire outlet, so that the outer tube can move relative to the inner tube, and the inner tube pushes the stent out of the distal end of the outer tube for release.

Provided are adjustment module for medical instrument, and medical instrument. The adjustment module includes: operational unit, provided on housing of the medical instrument, where the operational unit can move by first distance under external force; and transmission unit, connected to the operational unit, where the transmission unit includes driving member, fixing member and driven member, the driving member is in transmission connection with the fixing member and the driven member, respectively, the driven member is connected to the working module, the fixing member is fixedly provided on the housing, where the driving member is in transmission connection with the operational unit and is driven by the operational unit to move by second distance along the fixing member, and the driven member can be driven by the driving member to move by third distance that is greater than the first distance and the second distance.

An imaging catheter, a tip, a tube body and a medical device, relating to the field of medical instruments, where the imaging catheter includes a tube body and a tip, the tube body includes a first shuttling wall and a second shuttling wall, a first lumen is formed between the first shuttling wall and the second shuttling wall, the tip includes a first mounting wall and a second mounting wall, and a second lumen is formed between the first mounting wall and the second mounting wall. The second lumen is communicated with the first lumen, and a proximal end of the first mounting wall corresponds between the first shuttling wall and the second shuttling wall. A radial distance between a point m and a point n is a, and an inner diameter of the first lumen is b, where a≥b.

Hemostatic clip for endoscope is provided, including a clip holder and a clamping assembly, the clip holder has a passage provided to extend therethrough, a guiding slot communicating with the passage and an avoidance slot provided circumferentially along the clip holder and spaced apart from the guiding slot, the clip holder includes a first limiting portion, at least part of the first limiting portion is located in the guiding slot, and at least part of the first limiting portion is located between the guiding slot and the avoidance slot; and at least part of the clamping assembly is located in the passage, and the clamping assembly includes a movable pin and two clips connected to each other, with the movable pin threaded through the guiding slot; the clamping assembly can move relative to the clip holder along the passage, enabling the movable pin to move along the guiding slot.

Provided are an anchor and an anchoring device, including: a traction line, which is a flexible member; an anchoring body connected to a distal end of the traction line; a driving tube, which is at least sleeved on at least a portion of the traction line. The anchoring body is configured to move along a puncture needle under the drive of the driving tube and can be flipped when extending out of the distal end of the puncture needle to form an angle with the traction line, so that the anchoring body stops at the inner wall of the target tissue. The anchor and the anchoring device can smoothly implant the anchoring body of the anchor into the target tissue.