39results about How to "Simplify the surgical process" patented technology

The invention relates to a zero-exchange balloon catheter stent system with a far-end protective umbrella and a using method, and belongs to the technical field of medical instruments. Comprising a balloon catheter and a stent system which are connected, the stent system comprises a conveying system and a stent; the conveying system comprises a control core wire; the center of the control core wire is provided with a connecting binding wire fixing hole and a connecting binding wire releasing point; the support comprises a near-end support, a connecting area and a far-end protective umbrella, and the connecting area is located between the near-end support and the far-end protective umbrella; the connecting area comprises a connecting binding wire, a protective umbrella wire binding ring and a protective umbrella connecting wire. The far-end protection umbrella and the near-end support are designed to be a separable combination, instrument exchange is not needed in the operation process, the operation process is simplified, the operation difficulty is reduced, the operation time is shortened, and therefore the risk of complications such as ischemic stroke is reduced.

The utility model discloses a breast abscess puncture drainage device which comprises a puncture needle, a drainage mechanism and a fixing mechanism, the puncture needle is used for penetrating breast tissue to reach an abscess part, and the drainage mechanism comprises a drainage tube rotationally connected to the surface of the puncture needle in a sleeved mode and a drainage connector rotationally connected to the tail end of the drainage tube. The fixing mechanism comprises a fixing ring connected to the drainage tube in a sleeving mode, a rotating ring connected to the fixing ring in a screwed mode, a fixing block installed on the periphery of the interior of the fixing ring in a sliding mode, a limiting rod arranged on the fixing block and a limiting through groove formed in the periphery of the upper surface of the rotating ring; pasting pieces are arranged at the bottoms of the fixing rings; the puncture needle and the drainage tube are combined, the puncture process is simplified, tissue damage and infection risks are reduced, the drainage tube is clamped or loosened through the fixing mechanism which is easy and convenient to operate, and therefore operation convenience, flexibility and efficiency are improved.

The invention discloses a plasma tissue dissociation knife, and relates to the technical field of medical instruments. In order to solve the problems that when an existing endoscopic surgery relates to a plurality of instruments, the instruments need to be frequently switched for surgical operation, and the surgical efficiency is reduced, the following technical scheme is provided: the endoscopic surgical instrument comprises a tool bit, a tool bar, a handle and a cable which are connected in sequence; the cutter head comprises a blade telescopic assembly arranged on the head portion, an endoscope guide tube and a cutter head telescopic control mechanism are arranged in the handle, and the cutter head telescopic control mechanism drives a blade in the blade telescopic assembly to stretch out and draw back through a transmission piece. The positive cable extends to the tool bit to be connected with the blade telescopic assembly, the negative steel pipe is connected with the negative cable, and double-frequency emitter cutting is formed at the blade; the suction channel arranged in the cutter bar is used for flushing the surgical field and sucking turbid liquid in the operation. Compared with a traditional cold instrument, cutting efficiency, bleeding amount control, clear surgical field, cutter bar size optimization, cutting flexibility, sealing performance, operation convenience and the like are remarkably improved.

The application discloses a visual cleaning device for cleaning or medicine feeding of a human cavity such as a vagina or a rectum, which comprises a cleaning device shell, a cleaning assembly, a camera assembly and a flexible expansion assembly; the flexible expansion assembly comprises a plurality of flexible air bags arranged in a circumferential direction on a surface of an insertion end, and each flexible air bag is independently controlled by a control module, so that the flexible air bags are controllably contracted or expanded; on one hand, the flexible air bags in an expanded state are in flexible contact with an organ, so that the use comfort of the cleaning device is improved; on the other hand, the flexible air bags in a contracted state can form an avoiding space to avoid a wound surface; the camera assembly comprises a camera arranged at an end of the insertion end and is used for observing the inside of the cavity in real time. Through the cooperative design of the assemblies, the visual cleaning device realizes the functions of flexible expansion introduction of the cavity, visual accurate operation and selective wound surface avoiding, and mechanical damage to the human body is avoided, and the comfort of a patient is improved.

The invention discloses a plasma scalpel in the technical field of medical instruments. The plasma scalpel comprises a handle and a scalpel body. The cutter body comprises a metal tube, and the middle section and the front end of the metal tube are each rotationally provided with an adjusting shifting piece through an adjusting rotating shaft; the middle part of the handle is rotatably connected with a rotary drum, and a middle adjusting dial wheel and an end adjusting dial wheel are rotatably mounted in the rotary drum in an up-down staggered manner; a reversing wheel is arranged in the handle; the side wall of the handle is fixedly connected with a stabilizing piece, and the side face of the stabilizing piece is provided with an end control key, a middle control key and a rotating key used for controlling the cutter body to rotate. The bending degree and direction of the metal tube are controlled, so that the metal tube can reach the wounded part more accurately; the bend at the end of the metal tube can be better aligned with an affected part, the bend in the middle can adapt to the structure of a human body, the scalpel head can rotate to any position without rotating the handle, the operation process is greatly simplified, the operation accuracy and operability are improved, and pain of a patient is relieved.

The invention discloses an automatic flushing type uterine curettage device for the gynecology department. The automatic flushing type uterine curettage device comprises a holding operation part, a uterine curettage assembly, a liquid supply device and a suction device. The uterine curettage assembly is connected with the first end of the holding operation part, and the uterine curettage assembly is used for curettage of endometrium or uterine cavity contents; the uterine curettage assembly is provided with a liquid outlet and a waste suction port; the waste suction port is positioned on a flushing path of the liquid outlet; the liquid supply device is connected with the uterine curettage assembly, and the liquid supply device is used for providing flushing liquid for the liquid outlet; the suction device is connected with the uterine curettage assembly and used for providing negative pressure suction force for the waste suction opening. According to the invention, the cleaning and waste suction processes are simplified, so that the operation efficiency is improved.

The utility model provides a kind of left heart decompression drainage tube and left heart decompression system, left heart decompression drainage tube includes: adjustable bending sheath tube, adjustable bending sheath tube includes handle, catheter and sheath body, the first end of sheath body is connected with handle;Sheath body is equipped with instrument access channel, the side wall of the second end of sheath body is equipped with the drainage hole being communicated with instrument access channel, instrument access channel is formed into drainage channel, the first end of catheter is communicated with drainage channel, the second end of catheter is used to and drainage circuit is communicated.The utility model discloses left heart decompression drainage tube, by the drainage hole being communicated with instrument access channel in the side wall of the second end of sheath body is arranged, and the second end of catheter is configured to be able to with drainage circuit communication, so that adjustable bending sheath tube can be directly used as drainage tube in left heart decompression drainage operation, to avoid the cumbersome operation of additional use separate drainage tube in the process of operation, to simplify operation procedure, reduce operation step and time.

The hysteroscope comprises a handheld part and an insertion part connected with the handheld part, the insertion part comprises an insertion tube, and the insertion tube comprises an insertion tube body, a positioning plate, an elastic piece and a lens assembly arranged on the insertion tube body; an instrument channel extending in the axial direction of the insertion tube is formed in the insertion tube, the instrument channel comprises a first tube section and a second tube section which are communicated with each other, the first tube section is formed in the insertion tube body, the second tube section is jointly formed by the insertion tube body and the positioning plate, and at least part of the lens assembly is located in the radial direction of the second tube section; the near end of the positioning plate is rotatably connected to the cannula body, and the far end of the positioning plate is connected with the cannula body through an elastic piece. The device can be suitable for various surgical instruments of different models, the surgical cost is reduced, the surgical process is simplified, and the risk of secondary injury to a patient is avoided.

This invention relates to the field of interbody fusion device technology, specifically a 3D-printed porous interbody fusion device, comprising a fusion device body, a first filling hole penetrating through the middle of the fusion device body, and a plurality of internal reinforcing ribs evenly distributed circumferentially on the inner wall of the first filling hole. Based on the biomimetic mechanical design concept of the biomedical engineering industry, this interbody fusion device can break through the limitations of traditional fixed-width fusion devices, and can accurately match the anatomical width of the intervertebral space of different patients without the need for manual cutting and modification during surgery. It can fully adapt to the individualized needs of various heights, weights and disease segments, and fundamentally avoid the risks of endplate damage, infection and anchoring structure damage caused by cutting. After implantation, the self-locking component can achieve immediate rigid locking, completely blocking the reverse rebound path of the adjustment block. Combined with the multi-occlusal tooth structure, it forms a stable mechanical anchor, eliminating postoperative micromovement, displacement and slippage problems, and greatly improving the overall stability of the fusion device in the early stage of implantation.

The utility model relates to the technical field of medical instruments, and discloses a novel digestive endoscope suturing auxiliary device which comprises a handle, a plastic outer sleeve installed at one end of the handle and a telescopic assembly installed on the handle and inside the plastic outer sleeve. The telescopic assembly comprises an operation sliding sleeve, a steel wire and an umbrella-shaped film. The operation sliding sleeve is slidably installed on the handle and fixedly connected with one end of the steel wire in the handle, the steel wire is located in the plastic outer sleeve, and the other end of the steel wire is fixedly connected with the umbrella-shaped film. The umbrella-shaped film slides on the handle through the operation sliding sleeve and can extend out of the end, away from the handle, of the plastic outer sleeve or retract into the plastic outer sleeve. The device is simple in structure and convenient to operate, can effectively solve the problem of lodging of the hemostatic clip in the purse-string suture process, improves the operation efficiency and suture quality, reduces the operation risk and ensures the safety of a patient.

The double-lamp telescopic electric knife pen comprises a handle, a telescopic knife head, an ultraviolet lamp set and an illuminating lamp set are installed at the front end of the handle, the ultraviolet lamp set and the illuminating lamp set are sequentially arranged from inside to outside with the telescopic knife head as the center, and the ultraviolet lamp set comprises a plurality of ultraviolet lamp beads evenly distributed around the telescopic knife head. The illuminating lamp set comprises a plurality of LED lamp beads evenly distributed around the telescopic tool bit, a control key for controlling the telescopic tool bit to work is installed on the front middle portion of the handle, and a toggle switch for switching the ultraviolet lamp set and the illuminating lamp set to work is installed on the rear middle portion of the handle. The embodiment of the utility model can provide a sufficient light source for an operation, and can help to identify the residual quantity and the distribution condition of cancer cells.

The utility model discloses a pair of novel medical surgical suture passing forceps, which comprises a tip tube, a needle tube and a needle tube, the tip jaw is arranged at one end of the tip tube; a needle containing tube is arranged in the tip jaw, and an opening in one end of the needle containing tube faces upwards; one end of the movable jaw is matched with one end of the tip jaw to form a tong head; the skylight through hole is formed in the movable jaw corresponding to the position of the needle accommodating tube opening; the movable skylight is arranged in the skylight through hole; one end of the movable skylight is zigzag, and the other end of the movable skylight is rotationally connected with the movable jaw; the connecting rod is arranged in the tip tube in a sliding manner; wherein the other end of the movable jaw is rotationally connected with one end of the connecting rod and the tip pipe; the needle head end of the suture needle is arranged in the needle containing tube in a sliding manner; the operating handle is connected with the tip tube, the connecting rod and the other end of the suture needle; and the handle self-locking mechanism is arranged on the operating handle.

The present invention provides a high-voltage steep pulse tumor ablation visualization system and method based on augmented reality technology, wherein the system comprises an intraoperative image acquisition device, a computing processing unit, an AR projection device, a display device, and a high-voltage steep pulse generating device; the method comprises the following steps: S1) intraoperative image acquisition, S2) data preprocessing, S3) ablation area segmentation, S4) three-dimensional reconstruction, S5) multimodal image fusion, S6) AR projection, and S7) tumor ablation surgical operation. The advantages of the present invention are: high surgical accuracy, enhanced intraoperative intuitive perception, reduced intraoperative risks, and improved surgical safety.

The invention relates to the technical field of medical instruments, and discloses a puncture device and a hydrocephalus interventional therapy system. The puncture device comprises a needle tip, a sheath, a puncture catheter and a first handle; the puncture catheter is composed of an inner layer, a hypotube and an outer layer, the outer layer is provided with a wire drawing cavity and a traction wire, the far end of the hypotube is connected with the needle tip, the far end of the traction wire is connected with the sheath, and the first handle controls the traction wire through the sliding block to achieve controllable recovery of the sheath. The hydrocephalus interventional therapy system is integrated with a puncture device. According to the puncture device, hardness gradient distribution is achieved through multiple sections of cutting areas of the hypotube, and the trafficability in a bent blood vessel is improved; the outer layer symmetrical wire drawing cavity balances the stress of the drawing wire; and a handle knob transmission mechanism realizes linear accurate control. The control precision, safety and stability of puncture operation in the hydrocephalus interventional therapy process are improved, accurate exposure of the needle tip is achieved, the tissue damage risk is reduced, and the overall operation efficiency is improved.

The utility model discloses an object taking device for endoscopic surgery, and belongs to the technical field of medical instruments. The device comprises an outer sheath rod, the inner side of the outer sheath rod is movably connected with an inner sheath rod, a memory steel wire is installed at the end, located on the inner side of the outer sheath rod, of the inner sheath rod, a collection bag is arranged on the memory steel wire, and a liquid suction assembly is arranged on the outer sheath rod; the liquid suction assembly comprises an installation sleeve installed on the outer side of the outer sheath rod. A liquid suction assembly is arranged at the front end of an outer sheath rod, when the outer sheath rod goes deep into a body, a mounting sleeve of the outer sheath rod is also located in the body, a liquid suction device of the outer sheath rod is connected with a connecting base at one end of a liquid drainage pipe, suction force is generated by a liquid suction hole of the outer sheath rod through starting of the liquid suction device, and waste liquid in the body is sucked into a liquid suction cavity; and then the liquid enters the liquid absorption device through the liquid discharge pipe, so that a doctor or a nurse does not need to pause an operation to carry out manual liquid absorption operation, the operation process is simplified, the operation efficiency is greatly improved, and the operation time is shortened.

The invention discloses an injection and sampling integrated medical hollow drill which comprises a base, a hollow drill device and an injection and sampling device, a feeding driving device, a combination driving device and a drill sleeve are mounted on the base, and a first elastic sealing ring is mounted on the drill sleeve; the hollow drill device is installed on the base and connected to the feeding driving device, the hollow drill device comprises a drill bit assembly and a drill bit driving device, the drill bit assembly comprises a hollow drill bit, a drill bit seat and a drill bit sealing rod, the hollow drill bit is inserted into the drill sleeve, and the first elastic sealing ring is used for being tightly attached to the hollow drill bit; the hollow drill bit is sleeved with a second elastic sealing ring, and the drill bit sealing rod is installed on the drill bit base in a sliding mode and abuts against the second elastic sealing ring. And the combined driving device is used for driving the injection and sampling device to push the drill bit sealing rod to press the second elastic sealing ring on the drill bushing. According to the medical hollow drill, the functions of drilling, injecting and sampling can be integrated, liquid is effectively prevented from intruding into the medical hollow drill, and the service life is prolonged.

The tool comprises a first forceps component, a second forceps component and a driving part, the first forceps component comprises a first clamping part located at the far end and a first shearing part located in the middle, and the second forceps component comprises a second clamping part located at the far end and a second shearing part located in the middle. The second clamping part is used for being matched with the first clamping part to achieve clamping, the second shearing part is used for being matched with the first shearing part to achieve shearing, the first clamp component is used for being connected with the single-pole energy generator and the double-pole energy generator, the driving part is used for driving the second clamp component to move, and a driving wire of the driving part is connected with the second clamp component. The proximal end of the drive wire is used to receive bipolar energy. By selectively carrying out monopolar operation, bipolar operation and clamping or shearing operation on the same surgical tool, a doctor can be prevented from frequently switching among various tools in the surgical operation process, and the surgical time is shortened.

The invention relates to the technical field of intelligent implantable medical instruments, in particular to a magnetohydrodynamic pulse negative pressure micropump system integrated with wireless parameter monitoring, which comprises a fully implantable magnetohydrodynamic intelligent sensitive micropump, an in-vitro multifunctional driving read-out unit and an intelligent terminal, the fully-implanted magnetomotive intelligent-sensitive micropump is of a hollow titanium alloy screw structure, a magnetomotive power pump module and a wireless passive sensing module are arranged in the fully-implanted magnetomotive intelligent-sensitive micropump, the fully-implanted magnetomotive intelligent-sensitive micropump can be implanted into a bone in a minimally invasive mode, pulse negative pressure is generated, and intraosseous tissue gap hydraulic data are wirelessly transmitted. The in-vitro unit provides a driving magnetic field and radio frequency energy; and the intelligent terminal realizes data display, analysis and parameter adjustment to form intelligent closed-loop control. The system realizes integration of treatment and monitoring, is minimally invasive, has no infection risk, is accurate in monitoring and efficient in treatment, solves the problem of pain points in the prior art, and has important clinical application value.

The present invention relates to a semi-embedded housing and a stimulator, belonging to the technical field of full-head active implantable medical devices, and solves the problem that the implantation method of the stimulator in the prior art is highly traumatic and increases the risk of infection. The semi-embedded housing of the present invention comprises an upper shell and a lower shell, wherein the upper shell is fixedly connected to the lower shell to form a sealed or semi-sealed accommodating cavity, and the lower shell is stepped. The semi-embedded housing of the present invention enables the stimulator to be semi-embedded in the countersunk hole of the skull, thereby reducing surgical trauma and lowering surgical risks.

The invention relates to a targeted drug delivery device for improving coronary microcirculation disturbance. The targeted drug delivery device comprises a targeted drug carrying support and an implantation mechanism. One side of the far end of the implantation mechanism is provided with a targeted medicine carrying support installed in a blood vessel; the targeted drug-loading stent comprises a stent body, and micro grooves which are uniformly distributed are formed in the outer surface of the stent body; one side, facing the blood flow of the lumen, of the stent body is coated with a microcirculation improving coating; one side, facing the blood vessel wall, of each micro groove is coated with an anti-proliferation layer; the implantation mechanism comprises a catheter, a guide wire cavity and a drug delivery cavity are formed in the catheter, the guide wire cavity is used for passing of a guide wire, and the drug delivery cavity is used for targeted drug delivery; compared with the prior art, the invention has the following beneficial effects: by physically anchoring a focus through the targeted drug-loaded stent and intelligently responding to a microenvironment through the drug coating, "physical and chemical" dual precise positioning is realized, the local drug concentration is significantly improved, and the untoward effects of the whole body are reduced.

The invention relates to the field of medical repair, in particular to an acetabular bone defect repair system which comprises a moldable complex module made of a flowable composite material formed by mixing porous metal particles and bone cement according to a predetermined volume mixing ratio, and the moldable complex module is configured to be positioned in an acetabular bone defect area after being implanted, the bionic support frame module is used for providing mechanical support for the moldable complex module and the acetabular cup prosthesis; the inclusive cushion film can also be included; the bionic supporting frame module provides initial mechanical stability and has a space structure allowing the flowable composite material to permeate and be solidified, so that the bionic supporting frame module and the flowable composite material form a mechanically-interlocked integrated bearing structure. The inclusive cushion film is laid in the acetabular bone defect area, and a filling space is defined by the inclusive cushion film and the host bone. According to the acetabular cup prosthesis, the technical effects of anatomical matching and long-term biological integration of the irregular bone defect surface and the acetabular cup prosthesis are achieved.

The present invention discloses a handheld fluorescent endoscopic imaging device and method based on a coaxial optical path, which relates to the technical field of optical imaging, and comprises a light homogenizing mechanism, a light modulating mechanism, a beam splitter prism, a light transmitting mechanism, a color camera and a near-infrared camera. The excitation light emitted by the light homogenizing mechanism enters the beam splitter prism through the light modulating mechanism, and the excitation light of a set wavelength band enters the light transmitting mechanism after passing through the beam splitter prism to excite the fluorescent signal of human tissue, and the mixed white light signal and fluorescent signal enter the beam splitter prism through the light transmitting mechanism to perform light separation, the white light signal enters the color camera to obtain a color image, and the fluorescent signal enters the near-infrared camera to obtain a fluorescent image; the handheld fluorescent endoscopic imaging device and method not only reduce the difficulty of the assembly process and image alignment, but also can easily realize the pixel-level fusion of the fluorescent image and the color image; in addition, the device as a whole is in a handheld and portable form, occupies a small space, is not restricted by the medical environment, and improves the application scope and flexibility.

The application provides a calculation and evaluation method and device for postoperative offset and length difference of hip arthroplasty. The method comprises the following steps: preoperatively, the femur in the CT image is aligned according to the characteristic points, and the preoperative length difference and offset are calculated; intraoperatively, the hip bone is registered to the navigation camera coordinate system, the femur on the surgical side is placed in the natural position, a marker nail is installed at the edge of the greater trochanter of the femur, an electrode sheet is attached to the lower edge of the patella of the knee joint, and the positions of the marker nail and the electrode sheet are registered to the navigation camera by using a probe; postoperatively, the femur on the surgical side is placed in the natural position, the positions of the marker nail and the electrode sheet at this time are registered to the navigation camera by using the probe, and the positioning is corrected; and the postoperative length difference and offset are calculated. The application simplifies the surgical procedure and operation for calculating the postoperative length difference and offset, saves the operation time, reduces the additional operation of the doctor in the operation, and simultaneously provides a relatively accurate calculation and evaluation method.

The utility model provides a glaucoma drainage implant system which comprises a micro-stent and an implanter, the micro-stent is made of nickel-titanium alloy and comprises a tubular body with a hollow cavity, the tubular body is in a straight tube shape, the outer surface of the tubular body is provided with a plurality of holes which are regularly or irregularly arranged, and the implanter is arranged in the tubular body. The open grooves are formed in the surface of the tubular body in the axial direction of the tubular body, aqueous humor can flow through the open grooves and the open holes, the orthographic projection of each open hole is in a dovetail groove shape, and a friction contact part is formed on each dovetail groove; the micro-stent has a good aqueous fluid diversion effect to reduce intraocular pressure, can support the schlemm tube, is good in implantation stability and anti-displacement, has enough strength, and is not easy to deform and collapse; the implanter is used for implanting the micro-stent into the schlemm tube and comprises an implanter body, a guide tube, a push wire and a driving mechanism, the micro-stent is contained in the guide tube, the push wire is arranged in the guide tube, the far end of the push wire abuts against the micro-stent, and the driving mechanism is connected with the push wire and used for pushing out the micro-stent.

This utility model relates to a modular miniature visual endoscope, comprising a miniature visual endoscope body, a surgical blade, and an interventional channel. The distal end of the miniature visual endoscope body is connected to an endoscope assembly, which includes a hollow tubular endoscope guide tube capable of extending into the target surgical site. The interventional channel and the surgical blade are detachably connected to the miniature visual endoscope body, respectively, by being sleeved on the outside of the endoscope guide tube. The size of the surgical blade matches the size of the interventional channel, allowing the miniature visual endoscope body with the surgical blade installed to deliver the endoscope assembly into the internal cavity of the interventional channel at the target surgical site, and ensuring that the distal end of the surgical blade reaches the distal end of the interventional channel. The surgical blade includes a blade body with a fixing sleeve at its proximal end. The surgical blade can be detachably connected to the miniature visual endoscope body by the engagement of the internal thread of the fixing sleeve with the external thread surrounding the proximal outer wall of the endoscope guide tube.

The utility model discloses an appendix support, including leading in device, moving device and support, the movable moving device is arranged in the leading in device, the output of leading in device is provided with the support, the moving device can drive the support to export outward through leading in device, above all, can prevent the component unexpected and hurt that comes out, can carry out the fine adjustment of support to the support design and fit appendix lumen structure, can better fixed, and the device simple operation realizes the single -handed operation of main knife doctor, and the other hand can operate endoscope, need not auxiliary tool, improve operation efficiency and accuracy.

This invention relates to an adjustable medical reamer, comprising: an outer tube having an inner channel and a through-hole communicating with the inner channel, one end of the inner channel being an open opening located at the beginning of the outer tube, and the through-hole located at the end of the side wall of the outer tube; a drive rod inserted into the inner channel and rotatable relative to the inner channel; a drive head located in the inner channel and connected to the end of the drive rod, the drive head being configured to move along the extension direction of the inner channel as the drive rod rotates; and two sets of cutting tools disposed opposite to each other on the drive head, the two sets of cutting tools being located in the inner channel and their cutting edges extending from the through-hole; the distance between the cutting edges of the two sets of cutting tools changing with the movement of the drive head, so as to realize the control of the movement of the drive head by rotating the drive rod, thereby controlling the cutting diameter of the adjustable medical reamer.

The utility model discloses an implant positioning and guiding mechanism, and relates to the field of false tooth medical instruments. The rear groove positioning structure comprises a positioning main body and a rear groove positioning piece, a guide assembly comprises a guide block, a first clamping groove is formed in the outer surface of the guide block, a second clamping groove is formed in the inner wall of a neck bush, and annular clamping springs are arranged in the first clamping groove and the second clamping groove. The guide block and the neck bush are installed and fixed through the expansion force of the annular clamping spring, in traditional operation, an operator needs to continuously conduct auxiliary abutting on the guide block with hands, operation complexity is increased, operation errors are possibly caused by hand fatigue, the annular clamping spring is used, the installation process is faster and more efficient, and meanwhile the installation efficiency is improved. The use convenience of the guide assembly is also remarkably improved, and an operator does not need to continuously apply stable acting force, so that a doctor can concentrate on other key steps during an operation.

The application discloses an improved tissue closure device having opposite distal and proximal ends, specifically comprising: a handle configured with a drive mechanism; the delivery assembly has a shape suitable for intervention, and the near end of the delivery assembly is connected with the handle; the two arms are installed at the far end of the delivery assembly and controlled by the corresponding driving mechanisms through the delivery assembly, each arm is provided with a needle holding mechanism, the two arms are configured to be capable of moving relatively, and in the relative movement process, the two arms interact through the respective needle holding mechanisms to be used for threading suture needles to tissue. The tissue closing device is more suitable for large-diameter tissue suturing, the hemostasis time after interventional therapy can be shortened, the operation process is simplified, and the infection risk is reduced.

The invention discloses a tissue closing device and a closing method, the tissue closing device is provided with a far end and a near end which are opposite, and the tissue closing device comprises a handle provided with a driving mechanism; the delivery assembly has a shape suitable for intervention, and the near end of the delivery assembly is connected with the handle; the two arms are installed at the far end of the delivery assembly and controlled by the corresponding driving mechanisms through the delivery assembly, each arm is provided with a needle holding mechanism, the two arms are configured to be capable of moving relatively, and in the relative movement process, the two arms interact through the respective needle holding mechanisms to be used for threading suture needles to tissue. The tissue closing device and the closing method are convenient to operate, are more suitable for large-diameter tissue suturing, can shorten the hemostasis time after an interventional therapy operation, simplify the operation process and reduce the infection risk.