5results about How to "Improve puncture ability" patented technology

The application relates to a clamping jaw device, which comprises a first driving structure; the first transmission structure comprises a first transmission gear assembly and a first transmission shaft; a lifting piece is sleeved on the first transmission shaft and can move along the axial direction of the first transmission shaft under the rotation action of the first transmission shaft; a guide assembly comprises a first guide piece and a second guide piece; the first guide piece is connected to the lifting piece and synchronously lifts with the lifting piece; under the lifting action of the first guide piece, at least two second guide pieces are gathered or dispersed along the radial direction of the first transmission shaft; the at least two second guide pieces are gathered or dispersed so that a clamping piece clamps or releases an internal fixation needle. The clamping jaw device provided by the application can replace the manual grabbing of the internal fixation needle by a doctor, thereby relieving the hand fatigue of the doctor; through the feedback of the electric driving structure, the clamping force of the clamping piece on the internal fixation needle and whether the internal fixation needle has the clamping deviation phenomenon can be judged, thereby improving the puncture effect and puncture efficiency.

The utility model discloses a kind of needle-in-needle puncture devices for ultrasound imaging enhanced minimally invasive lumbar puncture, the needle-in-needle puncture device includes guide needle, lumbar puncture needle and lumbar puncture auxiliary needle;The guide needle tube is hollow structure;The outer surface of one end of the guide needle tube is equipped with the first coating area of enhanced ultrasound imaging;The lumbar puncture needle includes lumbar puncture needle tube, and the lumbar puncture needle tube is located in the guide needle tube;The inside of the lumbar puncture needle tube is hollow structure;The outer surface of one end of the lumbar puncture needle tube is equipped with the second coating area of enhanced ultrasound imaging;The lumbar puncture auxiliary needle includes needle core, and the needle core is located in the lumbar puncture needle tube, and the needle core structure is compatible with the lumbar puncture needle tube structure.Compared with prior art, the needle-in-needle puncture device for ultrasound imaging enhanced minimally invasive lumbar puncture of the utility model improves the visual effect and operation accuracy under ultrasound guidance in puncture process.

The utility model relates to the technical field of film production, especially to a high-strength environment-friendly wrapping film, the film body of the utility model is composed of three layers of self-adhesive layer, reinforcing layer and antistatic layer. The complementary of different layer material performance significantly improves the overall structural strength of the wrapping film. The reinforcing layer of the wrapping film selects polyethylene fiber reinforcement, the main base material of which is linear low-density polyethylene and metallocene polyethylene, and is obtained by physical blending with medium-density polyethylene as a compatibilizer. Linear low-density polyethylene has good flexibility and puncture resistance, metallocene polyethylene has high strength and excellent mechanical properties, and medium-density polyethylene as a compatibilizer can ensure uniform mixing of all components, so that the polyethylene fiber reinforcement has excellent strength and toughness, and the ability of the wrapping film to resist external impact and puncture is enhanced.

The utility model provides a deep venipuncture catheterization auxiliary device and a deep venipuncture catheterization system. The deep venipuncture catheterization auxiliary device comprises a base, a clamping device and a locking mechanism. The clamping device is rotationally connected with the base and used for clamping or releasing the ultrasonic probe. The locking mechanism is arranged between the base and the clamping device and used for limiting relative rotation between the clamping device and the base during locking. When deep vein puncture catheterization is carried out, a medical worker finds a puncture point through the ultrasonic probe. And then, after the ultrasonic probe is fixed on the clamping device, the base is supported on the human body, and the ultrasonic probe is aligned with the puncture point. At the moment, a medical worker can hold the base with one hand or fix the base on the human body through a sterile medical film and the like, and puncture operation can be conducted with the other hand or two hands. The base increases the contact area with the human body, so that the ultrasonic probe is more stable, and displacement is effectively prevented. And when the base is fixed by using the sterile medical adhesive film, both hands can be liberated, and the puncture effect is further improved.

The utility model provides an electrode bar device for geophysical exploration electrical method operation, which comprises an electrode bar main body, a hoop is arranged on an annular groove arranged on the side surface of the electrode bar main body through a fixing piece, the top of the electrode bar main body is electrically connected with a wire, and one end of the wire far away from the electrode bar main body is fixedly provided with a joint. A middle plate is welded to the side wall of the clamping hoop, a winding roller piece is fixed to the side wall of the middle plate, and a notch matched with a wire is formed in the winding roller piece. The winding roller is arranged on the side wall of the hoop, a wire can be manually wound on the winding column after exploration is completed, effective storage of the wire is achieved, disorder of the wire is avoided, carrying is convenient, the wire is well protected, the wire is prevented from being damaged in the carrying process, and the service life of the wire is prolonged. Meanwhile, the wound wire can be clamped and fixed through the opening formed in the winding roller piece, and it is further ensured that the wire cannot be scattered in the carrying process.