12 results about "Entry site" patented technology

Bone harvesting system including methods and devices for obtaining and / or removing osseous debris from a bone using an auger having a flexible, helical fin projecting from a shaft. In an exemplary method, a leading end region of the auger is placed into a reamed portion of a bone's medullary cavity via an entry site extending into the bone. Osseous debris is driven toward the entry site with the auger. At least a portion of the osseous debris that has passed through the entry site is collected outside the bone. In some embodiments, the leading end region of the auger is deformed by contact between the helical fin and a wall of the medullary cavity, to conform the helical fin in the leading end region to a portion of the medullary cavity.

The utility model provides a tool for measuring the ball diameter of a steel structure welding ball, which relates to the technical field of spherical steel grid structures and comprises two groups of clamping jaw mechanisms and a positioning mechanism which are symmetrically arranged, the upper ends of the two groups of clamping jaw mechanisms are hinged through a connecting seat, and the lower ends of the two groups of clamping jaw mechanisms abut against the two ends of the ball diameter of the welding ball. The device is good in measurement effect and reliable in mode, can effectively overcome the distinguishing of size specifications of stacking, splicing and model selection of the welding balls on site and the inspection of the diameter sizes of the welding balls on the site, also ensures the inspection of the quality of the welding balls on the site, avoids quality flaws and potential safety hazards, and improves the production efficiency. In addition, the ball diameter measuring device is simple and convenient to operate and high in popularization value.

Systems and methods for closing tissue defects are disclosed. The system may include a subcutaneous guide disposed percutaneously between two skin access sites and a self-locking strap that may be advanced into the body through a first access site via a first needle and then delivered to a second needle. The strap may be withdrawn out of the body with a second needle through a second access site. The strap may be withdrawn from the first needle, thereby causing the strap to pass through two access sites and be placed across the defect. Upon withdrawal of the subcutaneous guide from the body, the subcutaneous guide pulls the captured strap such that both ends of the strap protrude from the first entry site, allowing the strap to tighten around the defect. Devices for closing tissue defects are also disclosed.

The utility model discloses a handheld electric forcible entry tool relates to forcible entry tool technical field, including forcible entry tool main part and support block, the upper end of forcible entry tool main part is equipped with the chute, the inside of said chute is movably equipped with the drive shaft, the outer wall of drive shaft is symmetrically equipped with the limit block, and the limit block is equipped with the support block. First mounting grooves are symmetrically formed in the outer wall of one side of the forcible entry tool body, mounting blocks are mounted at the lower ends of the two sets of supporting blocks, limiting grooves are formed in the upper ends of the two sets of limiting blocks, and a driving motor is mounted in the forcible entry tool body. The forcible entry tool is provided with the forcible entry tool body, the first mounting groove, the supporting block and the limiting block, the problem that a large-size forcible entry tool cannot be effectively used in a narrow forcible entry site is solved, the supporting block is detachably arranged, the convenience of carrying the forcible entry tool to the narrow forcible entry site is improved, the mounting block is connected with the limiting block, and the forcible entry tool is convenient to use. And the forcible entry tool main body is held by hand for forcible entry operation, so that the practicability of forcible entry operation is improved.

Provided are surgical devices for guiding the insertion of a needle along a desired three-dimensional trajectory from a surgical entry site to a surgical destination site. The device includes an element for securely attaching a needle to the housing of the device. The orientation of the device can be calibrated relative to the patient, and an inertial measurement unit (IMU) within the device allows the current orientation to be continuously monitored after calibration. The current orientation is compared to the desired orientation, and this relationship is transmitted to a display for viewing by the surgeon. As such, the surgeon is aware of whether the device and needle are oriented along the desired trajectory, thereby helping the surgeon to adjust the orientation and be confident the desired orientation is achieved. Methods of using such devices to perform the guided insertion of the needle are also described.

The present disclosure provides a dynamic vascular access and closure device for radially tightening an access site. The device includes a tensioning tube, a resilient member disposed within the tensioning tube, and a plurality of sutures extending axially between a distal end of the tensioning tube and a proximal end of the tensioning tube. The proximal end of each of the plurality of sutures may be configured to attach to the resilient member such that movement of the sutures causes the resilient member to compress or stretch within the tensioning tube to tighten the sutures.

A low-profile medical device for containing a wound or surgical site includes a ring-shaped body defining an interior, a self-sealing gel contained within the interior, and an attachment pad for removably securing the device to a patient. The device is mounted on a patient such that the body surrounds the wound or surgical site and the gel covers the wound or surgical site, inhibiting contamination to or from the wound or surgical site. A surgical instrument may access the wound or surgical site by insertion through the gel, which forms a seal around the instrument upon insertion and seals the entry site upon removal of the instrument.

The present invention discloses a microfluidic chip, comprising: a chip body, having an injection site, an output site and a driving force entry site; the injection site, the output site and the driving force entry site are arranged on the same side of the chip body, and the injection site and the output site are arranged at intervals; a microfluidic channel, arranged inside the chip body; the microfluidic channel includes an injection flow channel, an output flow channel and a main flow channel, the injection flow channel and the output flow channel are respectively connected to the main flow channel, and along the same direction of the main flow channel, the injection flow channel and the output flow channel are alternately arranged; a positioning component. The technical solution of the present invention solves the technical problems of the complex structure and difficult manufacturing of traditional microfluidic chips and the inaccurate quantification of sample volume by optimizing the structure of the microfluidic chip, and realizes the batch automatic operation of the microfluidic chip.

A tissue puncture assembly comprises an elongated needle having a needle distal tip. A cannula has an internal lumen sized and shaped to receive the elongated needle, wherein elongated needle is slidably positionable within the internal lumen via manipulation of a handle. An anchor lumen is coupled to the elongated needle, wherein the anchor lumen is configured to movably receive a tissue anchor.

A surgical positioning cart configured to support a surgical robotic device thereon a distal side configured to face a surgical entry site of a patient, comprises a base movable at least along a horizontal reference plane, a head pivotable relative to the horizontal plane to define therewith different inclination angles at least in a plane comprising vertical and longitudinal axes of the cart; a slider configured to fixedly receive at least a portion of the surgical robotic device thereon and mounted to the head so as to be pivotable therewith and be movable relative thereto at least along the longitudinal axis; and a neck connecting between the base and the head pivotally mounted thereto, having an adjustable height defined by a length of the neck in the vertical direction.

The present invention relates to a method for providing a collision model, which includes: - obtaining patient information having information on the spatial positioning of the entry site of a medical object into an examination object, wherein the patient information is registered with a movable medical device, - obtaining object information having information on the geometry and spatial position of an operator for moving the medical object, wherein the operator includes a mobile device and / or a medical operator, - determining the relative positioning of the operator with respect to the examination object based on the patient information and the object information, - providing a collision model for moving the medical device based on the relative positioning and the object information. The present invention also relates to a system and a computer program product.

A fluid delivery catheter includes an elongated outer sheath and an elongated inner body co-axially and slidably positioned within the outer sheath. At least one anchor is positioned on a distal region of the elongated inner body, wherein the at least one anchor transitions between an expanded state and a retracted state and wherein the at least one anchor transitions between the expanded state and the retracted state based upon relative movement between the inner body and the outer sheath. A control handle is positioned on a proximal region of the fluid delivery catheter, wherein the control handle is actuated to achieve relative movement between the inner body and the outer sheath.