157results about "Surgical pincettes" patented technology

A system and method for modifying a heart valve utilizing a leaflet crossing tool and a cutting element.

A cell transplanting kit includes a transplant including a cell group and a cell transplanting device. The cell transplanting device includes a needle-shaped portion that extends in a shape of a tube, and an aspiration portion configured to aspirate an interior of the needle-shaped portion. The needle-shaped portion is configured to attract the transplant by aspiration by the aspiration portion and take the transplant into the interior. The aspiration portion is configured to create an aspiration pressure in a range of −100 kPa to −0.1 kPa. The transplant includes a protection portion in a form of a gel covering at least a part of the cell group. The transplant has an outer diameter that is greater than or equal to a minimum value of the inner diameter of the needle-shaped portion. The protection portion has a jelly strength of greater than or equal to 100 g.

The utility model relates to a 45-degree oval thoracic cavity curettage spoon, which belongs to the technical field of medical supplies. The utility model discloses handle and harrow hook are connected as an organic whole, the harrow hook includes the harrow hook main part and the spatula who are connected, the spatula is arranged at the front end of the harrow hook main part, the handle is arranged at the rear end of the harrow hook main part, and the spatula adopts oval long groove type design. The utility model has simple and reasonable structure design, is safe and reliable, convenient to operate, can be applied to single-hole and multi-hole thoracoscope, and satisfies the use demand.

The utility model discloses a kind of endoscope surgery pasting film, it is related to medical supplies technical field, including first film, second film, water baffle and liquid collecting and guiding bag.The bottom surface of first film is used to paste on skin.Second film is located on the top surface of first film, and the accommodating cavity that is formed with upward protrusion between second film and first film.Water baffle is located in accommodating cavity, and the region formed by surrounding water baffle is used to accommodate liquid.Liquid collecting and guiding bag is connected with one side of second film, and the bag opening of liquid collecting and guiding bag is towards the opening of water baffle, so that the liquid in the region formed by surrounding water baffle can flow into liquid collecting and guiding bag.In the process of operation by doctor, water baffle can be resisted by second film with physiological saline and patient's blood and other liquids, that is, water baffle plays a blocking role to liquid, so that liquid in the process of operation all stays in the region formed by surrounding water baffle, avoid the pollution of the surrounding environment of operation area.

The application relates to the technical field of medical equipment, in particular to a multifunctional control device for assisting endoscope interventional treatment, which comprises a foot pedal device, a cluster control box, a holding device and a signal line, the cluster control box is connected with the foot pedal device through the signal line, a plurality of holding devices are connected with the cluster control box, a control panel center is installed in the cluster control box, the holding device comprises a fixed base, a sliding push base, a sliding block body, a half-ring supporting body and a buckle cover body, the sliding push base is slidingly installed on the fixed base, a module fixing assembly is arranged at the right end of the fixed base, L-shaped limiting edge plates are symmetrically arranged at the two sides of the sliding push base, the sliding block body is slidingly installed on the sliding push base through the limiting edge plates, the application can make a plurality of endoscope examination operation modules be concentrated together, manual control is completely replaced by foot pedal electric control through mode function switching, and the task amount of hands is reduced.

The application relates to the field of medical instruments, and provides an appendix orifice supporting device for endoscopic retrograde appendix treatment, which comprises a support head, a support base, an unfolding piece, a first direction line, a second direction line and an opening and closing piece. A channel is arranged on a colonoscope. The support base is arranged around the front end of the colonoscope. The unfolding piece is arranged in at least three groups and is arranged in sequence along the support base. The opening and closing piece is located in the channel and is divided into a pushing end and a connecting end. The pushing end is located outside the colonoscope. When the pushing end is pushed, the connecting end moves along the channel and extends out of the channel. The support head is an elastic structure with expansion characteristics, and the bottom is connected with the connecting end and the unfolding piece. The application has the advantages of conveniently providing support for the appendix orifice and providing the effect of extending a sub-scope into the appendix cavity for shooting, exploration and treatment on the basis of facilitating colonoscope treatment.

The present application relates to a kind of arthroscopic approach water leakage prevention device, including the elastic cover with dome structure, the sealing valve being arranged in the center position of cover and negative pressure suction mechanism, sealing valve has the conical hollow structure extending to base direction and gradually reducing outer diameter, reverse compensation sealing is realized using joint cavity infusion liquid pressure, cover base edge is equipped with flexible sealing skirt, by the negative pressure interface connection external negative pressure source, so that cover and skin form negative pressure sealing space, the device can be connected in series by negative pressure interface multiple occluder, and equipped with detachable guide rod auxiliary coaxial positioning.The present application uses non-insertion type surface adsorption occlusion, effectively solve the space interference and tissue damage problem in multiple tunnel operation, realize the dynamic water stop of pressure self-adaption, with the advantages of simple operation, sealing stable, strong dissection adaptability, can significantly improve the operation visual clarity and maintain joint cavity pressure stability.

The invention relates to an adapter device 1 for connecting a surgical instrument 2 to a robotic system incompatible with the surgical instrument 2, comprising an adapter housing 3, a series of first transmission elements 5 for connecting to drives 14 of the robotic system on a side surface of the adapter housing 3, a series of second transmission elements 6 mechanically connected to the first transmission elements 5 for connecting to outputs 7 of the surgical instrument 2, and a mechanical transmission 8 arranged within the adapter housing 3 between at least one of the first transmission elements 5 and at least one of the second transmission elements 6. The invention further relates to a robotic system for surgery with an adapter device 1.

This application provides a negative pressure suction sheath and an endoscope assembly, relating to the field of medical device technology. An ultrasonic transducer is installed on the sheath seat or sheath tube of the negative pressure suction sheath. The output end of the ultrasonic transducer is connected to a metal layer inside the sheath tube. During surgery, if stone fragments cause blockage inside the sheath tube, ultrasonic waves can be generated by activating the ultrasonic transducer. These waves propagate to the metal layer of the sheath tube, where energy is transmitted to the metal layer in the form of mechanical vibration, causing the metal layer to vibrate mechanically, thereby facilitating the smooth removal of the blockage stone fragments.

The utility model discloses a kind of in-vivo blood clot cutting net structures, including the outer tube structure being cooperated with endoscope, the middle tube structure being arranged in outer tube structure and being cooperated with outer tube structure, and the inner core structure being arranged in middle tube structure;Wherein, the middle tube structure can be inserted or pulled out along outer tube structure, the inner core structure can be inserted or pulled out along middle tube structure.This application provides a kind of in-vivo blood clot cutting net structure, can be inserted into human body by the channel of endoscope, and can be deployed into adjustable angle's fishing net structure in human body, can effectively and quickly complete the fishing and cutting of large blood clot, and need not repeat extraction and insertion endoscope, that is, improve the cutting efficiency of large blood clot, also avoid the pain that repeat extraction and insertion endoscope brings to patient.

To provide medical probes. [Solution] The medical probe comprises a shaft, a camera, a hollow cutting tool, and an inflatable balloon. The shaft is configured to be inserted through a cutting site in the patient's body, while the shaft includes an operating vacuum channel extending through it. The camera is mounted at the distal end of the shaft and is configured to provide images of a target tissue site in the body. The hollow cutting tool is placed over a guidewire and inserted into the operating vacuum channel of the shaft, and is configured to perforate the target tissue site under the guidance of images taken by the camera. The inflatable balloon is configured to stabilize the distal end of the shaft and is positioned proximal to the camera so as not to obstruct images of the target tissue site.

This utility model discloses a endoscopic hook knife probe, relating to the field of medical device technology. The endoscopic hook knife probe includes a handle, a rod, and a blade. The two ends of the rod are connected to the handle and the blade, respectively. The connection between the blade and the rod can be configured with a bent structure at an angle between 90° and 120°. The blade includes: a cutting edge disposed on both the inner and outer sides of the bent structure, capable of cutting tissue at the surgical site; and a blunt structure located at the front end of the bent structure, shaped as a smooth hemisphere. This endoscopic hook knife probe can be used in combination with endoscopes and other instruments to perform minimally invasive anterior cervical fusion surgery, filling a technological gap in existing domestic surgical techniques. The endoscopic hook knife probe proposed in this application effectively meets the clinical needs for minimally invasive, visualized, safe, and efficient procedures, significantly improving the ease of operation and surgical efficiency.

The invention relates to a shaft instrument (10) for laparoscopic and / or endoscopic procedures, comprising a proximal shaft section (28) having a proximal shaft section longitudinal axis, and a distal shaft section (30) having a distal shaft section longitudinal axis and having an applicator (20) at its distal end, wherein the two shaft sections are connected to each other in the region of a connecting joint (32) and are rotatable relative to each other, wherein at least one of the end faces of the two shaft sections facing the connecting joint is oriented at an angle deviating from 90° relative to the respective shaft section longitudinal axis, and wherein an angle between the two shaft section longitudinal axes is variable, and wherein the shaft instrument comprises at least one transmission device.which is displaceable along or parallel to an actuating axis by one actuating stroke and is coupled at a distal end to the applicator of the shaft instrument, wherein the transmission device transmits axial forces along the actuating axis and torques around the actuating axis, wherein the applicator is rotatable around the distal longitudinal axis of the shaft section and the transmission device is rotationally fixed to the applicator.

The application provides a lung segment bronchus catheter, which comprises a catheter tail end ventilation and suction interface, a cuff inflation device, an outer tube, an inner tube, a front end cuff and a guide end formed by the inner tube; the cuff is annularly arranged on the outer surface of the catheter head, and is in the form of a ring ball wrapped around the inner tube in the inflated state; the cuff inflation interface and the cuff inflation conduit are communicated between the gap between the outer tube and the inner tube at the catheter tail and lead to the cuff; the catheter ventilation and suction interface is communicated with the inner tube and the guide end formed by the inner tube, and a guide wire is arranged in the catheter ventilation and suction interface to form a straight lumen. The catheter can enter the target lung segment or sub-lung segment bronchus through the operation channel of the bronchoscope, the inflated cuff seals the airway cavity around the lung segment bronchus catheter cavity, then the guide wire is pulled out from the lung segment bronchus catheter cavity, the target lung segment or sub-lung segment is inflated through the catheter ventilation and suction interface, so that the anatomical range of the target lung segment or sub-lung segment after ventilation is revealed, the technical problem that a thoracic surgeon cannot accurately identify the anatomical range of the target lung segment in the operation is effectively solved, and the thoracic surgery anatomical partial lobectomy operation is facilitated.

The invention relates to a locking mechanism for locking a mobile element (160) with a base element (140), wherein the mobile element (160) is guided and movable relative to the base element (140), comprising - a locking pin (162) fixed to the mobile element (160) and oriented transversely to the path of movement and - a labyrinth body (22) pivotably mounted on the base element (140) with a recirculating body (223) which can be slid around by the locking pin (162) and which has sliding surfaces extending parallel to the locking pin (162), including a first sliding surface (223-1) and a second sliding surface (223-2), which are at an acute angle to each other facing the mobile element (160) and are connected at their ends away from the acute angle by a concave third sliding surface (223-3), wherein the locking pin (162) and the labyrinth body (22) are designed to interact in such a way that after initial actuation of the mobile element (160) its return movement is blocked and after further actuation it is allowed again. The invention is characterized by two springs (24, 26) acting antagonistically on the labyrinth body (22), whose opposing torques hold the labyrinth body (22) in a predetermined initial position when it is not interacting with the locking pin (162).

A clipping system includes an adapter, a clip, a coupling, and a release member. The adapter includes a distal portion over which the clip is mounted. Jaws of the clip move between being separated to receive tissue and drawn to grip the tissue. The coupling includes a channel and a recess formed in a side of the coupling. The recess receives a side portion of the clip therewithin and accessible by a window in the side. The member extends partially through the channel and includes a retaining portion positioned within the recess between the window and the side portion. The member moves to a release position to withdraw from the recess to permit the side portion to exit the recess through the window to decouple the clip from the system.

The application provides an endoscope and an endoscope surgery system, and relates to the endoscope equipment field.The endoscope comprises a catheter assembly and a cutting wire assembly.The catheter assembly comprises an insertion tube, the insertion tube has at least two parallel arranged lumen, the at least two parallel arranged lumen comprises an instrument lumen and at least one cutting wire lumen, the tube wall of each cutting wire lumen is provided with a side opening at the part of the distal end of the lumen wall of the insertion tube, the side opening penetrates to the outer wall of the insertion tube, and the side opening is arranged to extend to the distal end.The cutting wire assembly comprises at least one cutting wire, the cutting wire is arranged in the at least one cutting wire lumen, the distal end of the cutting wire is connected with the distal end of the insertion tube, and the part of the cutting wire corresponding to the side opening is a cutting section.The application can relieve the situation that special instruments are frequently replaced in the surgery process, improve the surgery efficiency, reduce the number of used instruments, and is lower in cost.

A reentry catheter for crossing a vascular occlusion includes an elongate flexible tubular body, having a proximal end, a distal end and at least one lumen extending there through. A reentry zone on the tubular body includes at least two and preferably three sets of opposing pairs of axially spaced exit apertures in communication with the lumen. The apertures are rotationally offset from each other and aligned in a spiral pattern around the tubular body. A method of crossing a chronic total occlusion includes the steps of advancing the reentry catheter across the occlusion via a channel formed in the subintimal space, and advancing a guidewire via a selected exit port into the native lumen distally of the occlusion. The catheter may be removed, leaving the guidewire across the occlusion to guide further interventional devices.

This invention relates to a magnetic stone retrieval basket handle, belonging to the field of medical device technology. This magnetic stone retrieval basket handle achieves axial movement and circumferential rotation of the basket's core wires through a non-contact transmission method using magnetic coupling between an outer and inner magnet. Combined with the guiding effect of a steel tube, it ensures the smoothness and precision of the basket's opening, tightening, and rotation operations, avoiding the jamming and loosening problems of traditional mechanical transmission. It simplifies the handle's transmission structure, reduces mechanical wear, and extends the handle's service life. Magnetic transmission eliminates the need for threads, drill holes, or other structures on internal transmission components, facilitating cleaning and disinfection, reducing the risk of infection, and improving the stability and safety of intraoperative stone retrieval operations.

The application relates to a handle of a surgical instrument and an anastomat, which comprises a mounting shell, a movable handle, a rack slider and a pawl. The mounting shell is formed with a fixed handle part; the movable handle is rotatably connected to the mounting shell and is arranged at least partially inside the mounting shell; the rack slider is slidably arranged in the mounting shell, the proximal end of the rack slider is configured with a plurality of spaced teeth, and the distal end of the rack slider is configured with a limiting structure; the pawl is rotatably connected to one end of the movable handle arranged in the mounting shell, and the pawl is selectively connected with the limiting structure or the teeth; when the pawl is connected with the limiting structure, the movable handle can drive the rack slider to reciprocate through the pawl; when the pawl is connected with the teeth, the movable handle can drive the rack slider to make one-way movement to the distal end through the pawl. The handle can realize the closing and opening of the jaws of the anastomat in the unfired mode and the switching between the unfired mode and the fired mode by changing the connection position of the pawl and the rack slider.

This invention relates to the field of medical auxiliary devices, specifically to a visual endoscopic minimally invasive surgical aid device, comprising a metal cannula and a transparent inner tube. The transparent inner tube slides within the metal cannula. The metal cannula contains a sealing mechanism for sealing the transparent inner tube and a clamping mechanism for applying clamping force to the transparent inner tube. The sealing and clamping mechanisms coordinate with the operation of the transparent inner tube, enabling axial displacement of the transparent inner tube to trigger synchronous adjustment of the sealing and clamping mechanisms, achieving sealing and clamping fixation. This invention combines the axial sliding operation of the transparent inner tube with the synchronous triggering of sealing and clamping functions, achieving a linkage design where operation equals sealing and movement equals locking; it simplifies surgical procedures and improves surgical efficiency.

A medical instrument (10) comprises a first component (33) designed and configured to transmit at least either a force or a torque from a proximal end region (14) to a distal end region (12) of the medical instrument (10) and which is electrically conductive, a second component (20), a connection point (61) that mechanically connects the first component (33) and the second component (20), and an electrical contacting device (45; 46) for contacting the first component (33) and for introducing an electric current to transmit electrical power to the first component (33). The first component (33) is designed and configured to conduct the electric current to transmit electrical power and to heat the connection point (61) to release the mechanical connection between the first component (33) and the second component (20).

Exemplary embodiments of apparatus and method for harvesting small portions of tissue (“micrografts”) to form grafts can be provided. For example, a hollow tube can be inserted into tissue at a donor site, where a distal end of the hollow tube can have two or more points or extensions to facilitate separation of the micrografts from the surrounding tissue. The exemplary apparatus can be provided that includes a plurality of such tubes for simultaneous harvesting of a plurality of micrografts. The harvested micrografts can have a small dimension, e.g., less than about 1 mm, or less than about 0.3 mm, which can promote healing of the donor site and / or viability of the harvested tissue. The micrografts can be approximately cylindrical or strip-shaped, and can be placed in a biocompatible matrix to form a graft or directly into tissue at the recipient site. Such exemplary micrografts can be obtained from skin or other types of tissue, e.g., various internal organs.

The present disclosure relates to the field of medical devices, and discloses an assembly tool, an ultrasonic surgical tool assembly, and a surgical robot. The assembly tool includes an arm body, a base disposed at a distal end of the arm body, the base including an assembly feature for assembling or disassembling the assembly tool, and a clamp disposed at a distal end of the base and rotatably connected to the base.

This invention provides an electric suturing device and an endoscopic suturing system, relating to the field of medical device technology. The electric suturing device includes a suture clamp assembly, a suture needle assembly, a tissue traction assembly, and an electrically controlled instrument box. The suture clamp assembly includes a suture clamp, a suture clamp seat, and an opening / closing control mechanism, which controls the opening and closing of the two suture clamps. The suture needle assembly includes a suture needle, a locking slider, and a locking control mechanism. The two locking sliders respectively control the two ends of the suture needle to lock or release with the two suture clamps. The locking control mechanism drives the locking sliders to move back and forth. The electric suturing device provided by this invention can be inserted with a gastroscope. By alternately locking and unlocking the two suture clamps with the two ends of the suture needle, and simultaneously coordinating the opening and closing of the two suture clamps, the suture needle can be automatically changed and sutured inside the body. Needle changing requires no additional instruments, making operation simpler, and the manufacturing process is simple and the cost relatively controllable.

This utility model provides a hemostatic clip, relating to the field of medical device technology. The clip assembly includes a first clip and a second clip arranged opposite to each other. The proximal end of the first clip has a deformable first engaging portion and / or a first slot formed on both sides facing the sleeve. The proximal end of the second clip has a deformable second engaging portion and / or a second slot formed on both sides facing the sleeve. The first engaging portion or the first slot on the first clip engages with the second engaging portion or the second slot on the second clip to restrict the proximal ends of the first and second clips from moving in opposite directions. The distal end of the cable is configured to deform the first engaging portion and / or the second engaging portion during movement from the distal end to the proximal end, thereby releasing the restriction on the proximal ends of the first and second clips from moving in opposite directions. The proximal end of the clip assembly is then fixedly connected to the sleeve, eliminating the need for a separate clip retainer. This simplifies the structure of the hemostatic clip, reduces assembly steps, and effectively saves production costs.

A trans-xiphoid procedure for gaining entry to the chest cavity of a patient, sometimes also referred to herein as a “TRAX” procedure. The procedure may be used for, among other things, mobilization of the mammary arteries and performing coronary artery bypass surgery in which the mammary artery of the patient or other conduit is joined to a coronary artery of the patient, such as the left anterior descending (LAD) coronary artery.

There is provided a device (100) for removing a clot from a vessel. The device (100) comprises a catheter body (110), a set of holes (120) and a lumen (130). The catheter body (100) is for insertion into the vessel. The catheter body (110) is attachable to an aspirator at a proximal end (111) of the catheter body (110). The catheter body (110) comprises an interior surface and an exterior surface. The catheter body (110) comprises a lumen (130) extending between the proximal end (111) and a distal end (112). The lumen (130) is configured to receive a guidewire (300). The set of holes (120) is towards the distal end (112) of the catheter body (110) in a distal region. The set of holes (120) is configured to engage the clot by suction. The set of holes (120) is arranged circumferentially on the catheter body (110). The distal region comprises a valve region (114) including a valve (115). The valve (115) is configured to close in response to pressure within the lumen being below a threshold value.