31 results about "Suturing guide" patented technology

The invention discloses a special suture line guiding device for cervical surgery, which comprises a suture needle main body, two ends of the suture needle main body are respectively provided with a needle tip end and a needle tail end, the needle tail end is connected with a suture line, the diameter of the suture needle main body is not less than 9mm, the suture needle main body is provided with a threaded hole, and the needle tip end is connected with the suture line. A threaded rod corresponding to the threaded hole is arranged on the needle tip end, a reinforcing coating is coated on the needle tip end, and a plurality of suture needle bodies are arranged on the suture needle body. Through the arrangement of the threaded rod and the threaded hole, the needle tip end and the suture needle body are divided into two parts, the needle tip end can be independently replaced, the needle tip end is coated with an aluminum oxide coating, the strength of the needle tip end is guaranteed, and the outer surface of the needle tip end is smoother; the reinforcing rib is arranged in the open slot, so that the strength of the suture needle main body is ensured, and meanwhile, the situation that the surface of the suture needle bulges due to the use of the reinforcing rib and the suture effect is influenced is avoided.

An Achilles tendon repair device comprises a handle for physician gripping and base having a first set of tendon rods disposed in an arcuate or U-shaped pattern about the base to engage the posterior surface of the tendon and impart a contour, or drape, the tendon in the posterior-anterior plane to increase the surface area for suturing. A second set of suture guide rods extend from the sides of the base and are spaced apart to allow insertion of suture needles along the entire length of the suture guide rods, and at any angle. A suture needle housing guide can be slidingly attached to the suture guide rods and includes sidewalls with predefined suture holes / angles. An adjustable clamping arm can engage the tendon's posterior surface such that the device grasps the tendon on both the anterior and posterior tendon surfaces simultaneously, while increasing posterior-anterior plane surface area to facilitate suturing.

A delivery apparatus for a medical device can include a first shaft, a second shaft, a suture guide, a suture, an apex guide, and a suture retention member. The second shaft can be disposed within and movable relative to the first shaft. The suture guide can be coupled to the second shaft. The suture can extend from the suture guide and can be configured for releasably securing the medical device to the delivery apparatus. The apex guide can be movably coupled to the suture and configured for engaging an end of the medical device and guiding the end of the medical device into the first shaft. The suture retention member can be movable relative to the suture guide and the suture and configured for selectively securing the suture relative to the suture guide.

The suture threading device comprises a grip, an extension rod and a forceps head which are sequentially arranged in the length direction, and the grip is provided with an opening and closing operation piece for controlling the forceps head to be opened and closed; a movable joint is arranged between the extension rod and the forceps head, the forceps head is arranged to be suitable for moving in any direction relative to the extension rod through the movable joint, and the grip is provided with an angle operating part for driving the movable joint and a locking operating part capable of keeping the forceps head in a movable posture. According to the suture threading device, the movable joint can be driven through the angle operating part, so that the tong head can be switched to different angles according to different use scenes, and the flexible and convenient multi-angle adjusting capacity is provided to adapt to different anatomical structures and surgical admission paths; after the forceps head is adjusted to a proper angle, the movable joint is restrained through the locking operation piece, it is ensured that the posture of the forceps head is stable in the whole thread passing process, and therefore the accuracy and safety of an operation are improved.

A surgical tool incorporates a suture guide with an anchor driver supporting an anchor where the anchor is maintained at a distance from the suture guide until release of a detent mechanism. Thereafter, the anchor is allowed to move into proximity to the suture guide, fixing a suture supported by the suture guide to a substrate, the entire procedure being achievable with a single hand.

A surgical tool incorporates a suture guide with an anchor driver supporting an anchor where the anchor is maintained at a distance from the suture guide until release of a detent mechanism. Thereafter, the anchor is allowed to move into proximity to the suture guide, fixing a suture supported by the suture guide to a substrate, the entire procedure being achievable with a single hand.

This invention provides a nice suture guide, comprising a slender needle bar with a puncture hook at its head and two suture channels connecting its two ends within the needle bar. When pre-positioning the suture, the ligation suture is threaded back and forth through the two suture channels to obtain a double-stranded suture, with the closed loop end of the double-stranded suture located at the end of the puncture hook. During suture passage, the puncture hook of the needle bar pierces and bypasses the bone tissue, then hooks the closed loop end of the double-stranded suture, and finally withdraws the puncture hook, thus completing the suture passage. During this process, the double-stranded suture is effectively confined within the needle bar, avoiding the risk of the double-stranded suture being stuck by bone fragments or other tissues during passage, as well as the risk of detachment during the passage process; it offers better stability and safety, and is also convenient to operate.

A surgical tool incorporates a suture guide and anchor driver supporting an anchor where the anchor is maintained at a distance from the suture guide until release of a detent mechanism. Thereafter, the anchor is allowed to move into proximity to the suture guide, fixing a suture supported by the suture guide to a substrate, the entire procedure being achievable with a single hand.

An Achilles tendon repair device comprises a handle for physician gripping and base having a first set of tendon rods disposed in an arcuate or U-shaped pattern about the base to engage the posterior surface of the tendon and impart a contour, or drape, the tendon in the posterior-anterior plane to increase the surface area for suturing. A second set of suture guide rods extend from the sides of the base and are spaced apart to allow insertion of suture needles along the entire length of the suture guide rods, and at any angle. A suture needle housing guide can be slidingly attached to the suture guide rods and includes sidewalls with predefined suture holes / angles. An adjustable clamping arm can engage the tendon's posterior surface such that the device grasps the tendon on both the anterior and posterior tendon surfaces simultaneously, while increasing posterior-anterior plane surface area to facilitate suturing.

An Achilles tendon repair device comprises a handle for physician gripping and base having a first set of tendon rods disposed in an arcuate or U-shaped pattern about the base to engage the posterior surface of the tendon and impart a contour, or drape, the tendon in the posterior-anterior plane to increase the surface area for suturing. A second set of suture guide rods extend from the sides of the base and are spaced apart to allow insertion of suture needles along the entire length of the suture guide rods, and at any angle. A suture needle housing guide can be slidingly attached to the suture guide rods and includes sidewalls with predefined suture holes / angles. An adjustable clamping arm can engage the tendon's posterior surface such that the device grasps the tendon on both the anterior and posterior tendon surfaces simultaneously, while increasing posterior-anterior plane surface area to facilitate suturing.

The present invention relates to a fixed clip for cutting and fixing eye muscles at a fixed distance during strabismus surgery, belonging to the technical field of medical devices. It includes a fixed clip housing, inside which there are a central groove plate, a fixed-spacing expander, an upper clamping plate, a vertical electric expander, and a lower clamping plate. A central controller is fixedly arranged on the top of the fixed clip housing, and the central controller is respectively connected to the fixed-spacing expander and the vertical electric expander through wires. By designing a fixed clip for cutting and fixing eye muscles at a fixed distance during strabismus surgery that simultaneously has a precise fixed-distance muscle cutting guiding structure and a clamping mechanism that can simultaneously clamp both ends of the cut muscle and conduct suture guiding, it is beneficial to realize cutting the eye muscles at a fixed distance value, greatly improving the stability of suturing the eye muscles. Moreover, through the suture guiding structure, the difficulty of surgical operation is greatly reduced, and the surgical success rate is significantly improved.

A suture guide for securing a catheter to a patient includes a body and a needle channel extending through the body. The needle channel includes a first passage extending from a first passage inlet to a first passage outlet, and a second passage extending from a second passage inlet a second passage outlet. The first passage is curved toward the second passage as the first passage extends from the first passage inlet to the first passage outlet. The first passage is configured to guide a suture needle from the first passage outlet to the second passage inlet such that the suture needle exits the first passage, traverses skin and tissue of a patient to create a patient suture passage between the first passage and the second passage, and enters the second passage to secure the catheter to the patient.

To provide an intraocular suture guide needle and assembly which provide good stability in thread fixation, reduce the risk of thread coming off, and cause little damage to tissue. [Solution] The intraocular suture guide needle includes a main body 1 and a handle 2, with the handle fixedly connected to the main body. The handle has a thread introduction hole 3 at its tip (the end away from the main body), and a hot melt window 4 in the handle. The hot melt window is connected to the thread introduction hole and is used when the electrocoagulation structure enters the thread introduction hole. The assembly includes an intraocular suture guide needle, and thread is introduced through the thread introduction hole and fixed by thermal welding using the electrocoagulation structure through the hot melt window, improving the stability of thread fixation and reducing the risk of thread detachment. Furthermore, the relative shape of the two threads reduces damage to tissue, resulting in excellent postoperative safety and minimal invasiveness.

The invention relates to an external rotation muscle group tendon reconstruction auxiliary device which is mounted on the rear surface of a greater trochanter of a femur and used before an iliotibial bundle is sutured after a hip replacement operation is performed on a posterior lateral approach. The device comprises a drilling cover die and a drill bit matched with the drilling cover die, a plurality of guide holes are preset in the cover die, a replaceable cambered surface insert block and a non-Newtonian fluid buffer bag body structure are arranged, and the fitting performance and the impact resistance stability are improved. The periphery of the guide hole is provided with a liquid injection groove used for dyeing identification, the surface of the cover die is provided with a tendon trend scribed line and a suture guide baffle, and synchronous optimization of drilling positioning, suture tension control and operation efficiency is achieved. The device is reasonable in structure, accurate in positioning, simple and convenient to operate and suitable for the tendon reconstruction requirements of extorsion muscle groups in various hip replacement operations.

The meniscus suture guide needle comprises a puncture assembly and a locking mechanism, and the puncture assembly comprises a handle, an end cover and a puncture needle; wherein the end cover is installed at one end of the handle, the puncture needle is of a split type, and one end of the puncture needle is inserted into the end cover; the handle is moved to drive the puncture needle to penetrate through a meniscus crack, the push core suturing assembly is driven by the driving assembly to enable the line binding part to extend out of the puncture needle, so that a suture line is hung in the line binding part, then the push core suturing assembly is driven by the driving assembly to reset, and the hung suture line is collected in the puncture needle. Then the puncture needle is taken out of the meniscus, the suture line can be driven to penetrate through the meniscus crack, then an implant anchor is not needed, the suture line can be directly used for suturing the torn part of the meniscus, the safety of long-term suturing is improved, the threading mode is simplified, and the operation efficiency is improved.

The utility model discloses a knot-pushing thread trimmer, which relates to the technical field of medical instruments and comprises a thread trimming component, a knot-pushing component, a handle and a tail cap, the knot-pushing component is mounted inside the handle, the tail cap is mounted at the tail of the handle, and the thread trimming component comprises a shearing inner core rod and a shearing outer sleeve; one end of the shearing outer sleeve is connected with the knot pushing assembly; one end of the shearing inner core rod penetrates through the knot pushing assembly, extends into the handle and is connected with one end of the tail cap; a lead opening groove is formed in one end, far away from the tail cap, of the shearing inner core rod, a convex part is further arranged on one side of the lead opening groove, and a sewing thread penetrates through the lead opening groove and extends to be tightly attached to the convex part; a shearing blade is arranged at the end part of the shearing outer sleeve far away from the handle; the knot pushing assembly is pushed to drive the shearing outer sleeve to approach the convex part and shear the suture. Through the arrangement of the lead opening groove and the convex part, a suture line can be quickly led in, the time of lead operation is shortened, and the efficiency in the operation process is improved.

A suture placement device insertable into a surgical port has a cannular housing, and a suture guide mechanism movably connected to a distal housing portion arranged for movement between deployed and non-deployed positions. The mechanism defines first and second receptor port on opposite side portions and a suture passage therebetween that extends the housing distal end portion. First and second channel guides and the suture passage form the suture passage when deployed with portions of the first and second channel guides extending into corresponding receptor ports. Third and fourth channel guides forming injector channels are movable between retracted and deployed positions having portions extending from opposite sides to first and second injection positions. Actuation of a channel guide deployment mechanism attached to the housing and channel guides, such as slide, automatically deploys the first, second, third and fourth channel guides to their deployed positions allowing medicament injections and suture placement.

A surgical clamp for aligning the margins of incised or wounded tissue has jaws with parallel clamping faces, and a handle for manipulating the clamp to align the margins of the tissue. The jaws are in a normally closed position, however they can be opened by compressing the handle to open the jaws. Prongs project from the inferior surface of the jaws. The clamp is positioned in a desired position over the margins of a wound to be closed, the prongs engage the margins of the wound to be aligned, and the jaws are closed by releasing compressive force on the handle. As the jaws close the prongs help move the tissue into alignment. Suture guide slots through the jaws assist in the placement of precisely placed sutures across the incision. The disclosed surgical clamp is particularly suited for selectively closing and reopening surgical incisions, such as a sclerotomy incision in the eye. Methods are disclosed for using the clamp during intraocular and other surgical or minimally invasive procedures. In one example the clamp is used during implantation into the retina of a scaffold on which choroid and retinal pigment epithelium cells and retina grow in a three-dimensional matrix that mimics the native structure of the retina.

This utility model relates to the field of medical device technology, and in particular to a multi-angle puncture and suturing device for arthroscopic surgery, comprising: a first hand handle, a second hand handle, and a clamping rod assembly hinged to one end of the first and second hand handles; the clamping rod assembly includes: a first clamping rod fixedly disposed at one end of the first hand handle, a second clamping rod hinged to one end of the second hand handle, and a third clamping rod slidably disposed at the end of the second clamping rod away from the first hand handle; the first clamping rod is hinged to the side of the second hand handle near the second clamping rod; wherein, the end of the second clamping rod away from the first hand handle is hinged to the middle of the third clamping rod, one end of the third clamping rod is hinged to one side of the first clamping rod, and the other end of the third clamping rod is fixedly provided with a first clamp; this utility model simplifies the surgical procedure, eliminating the need for multiple switching of tools such as suture guides and beak forceps as in traditional methods, reducing the number of operational steps during the surgery, and shortening the surgical time.

A transanal hemorrhoid treatment system comprising: (a) a sacrorectopexy unit comprising a proctoscope having a tubular body, a side access window, and a light source port, the proctoscope being configured for insertion into the rectum and allowing the targeted application of presacral fixation sutures by a curved suturing needle, the sutures being anchored to the sacral fascia to fix the inner rectal wall and reduce rectal prolapse; (b) a suture rectopexy unit operable by the same or an interchangeable proctoscope, the unit comprising a suture guide adapted to place a series of overlapping sutures in a circular pattern through the rectal mucosa, submucosa, and a partial layer of rectal muscle, approximately 4 cm proximal to the dentate line, so as to fix the mucosa to the underlying muscle to occlude afferent branches of the superior rectal artery; and (c) a mucopexy unit comprising a butterfly-shaped proctoscope for radial expansion and a suture applicator configured to apply single U-shaped sutures to anatomically prominent hemorrhoidal locations above the dentate line, including but not limited to the 3, 7, and 11 o'clock positions, thereby reducing prolapsed hemorrhoidal tissue without excision.

A suture guide for securing a catheter to a patient includes a body and a needle channel extending through the body. The needle channel includes a first passage extending from a first passage inlet to a first passage outlet, and a second passage extending from a second passage inlet a second passage outlet. The first passage is curved toward the second passage as the first passage extends from the first passage inlet to the first passage outlet. The first passage is configured to guide a suture needle from the first passage outlet to the second passage inlet such that the suture needle exits the first passage, traverses skin and tissue of a patient to create a patient suture passage between the first passage and the second passage, and enters the second passage to secure the catheter to the patient.

A surgical tool incorporates a suture guide and anchor driver supporting an anchor where the anchor is maintained at a distance from the suture guide until release of a detent mechanism. Thereafter, the anchor is allowed to move into proximity to the suture guide, fixing a suture supported by the suture guide to a substrate, the entire procedure being achievable with a single hand.

The invention discloses a crystalline lens suspension sclera puncture and suture guide instrument, and relates to the technical field of medical instruments, the crystalline lens suspension sclera puncture and suture guide instrument comprises a handle, the two ends of the handle are conical, one end of the handle is a holding end, and the holding end of the handle is provided with a plurality of parallel grooves; a sclera puncture needle is fixedly installed on the top of the holding end of the handle, the top end of the sclera puncture needle is of a needle point structure, a needle hole is formed in the top end of the sclera puncture needle, and the portion, close to the top end, of the sclera puncture needle is bent in an arc mode. The device can be repeatedly disinfected, the operation efficiency can be improved, and the operation in the anterior chamber is reduced, so that corneal injury and postoperative inflammatory response are reduced, operative complications are reduced, and the prognosis effect of a patient is improved.

A cannula can comprise a main body portion having an outer peripheral surface, a longitudinal axis, a transverse axis that is perpendicular to the longitudinal axis, and opposing first and second ends that are spaced relative to the longitudinal axis. A through-bore can extend through the main body portion. The through bore can comprise a first guide bore, a second guide bore spaced from the first guide bore relative to the transverse axis, and a connecting portion that extends between the first bore and the second bore. A tip portion can extend from the second end of the main body portion relative to the longitudinal axis. The tip portion can comprise a bore therethrough that is coaxial with the first guide bore.

A suture guide for securing a catheter to a patient includes a body and a needle channel extending through the body. The needle channel includes a first passage extending from a first passage inlet to a first passage outlet, and a second passage extending from a second passage inlet a second passage outlet. The first passage is curved toward the second passage as the first passage extends from the first passage inlet to the first passage outlet. The first passage is configured to guide a suture needle from the first passage outlet to the second passage inlet such that the suture needle exits the first passage, traverses skin and tissue of a patient to create a patient suture passage between the first passage and the second passage, and enters the second passage to secure the catheter to the patient.

A tissue access and closure system for piercing through biological tissue and providing access to internal structures; particularly, intra-abdominal structures, and closing an opening in the tissue. The system includes a suture passer sub-system that is adapted to releasably secure sutures and insert the sutures into and through the tissue, and a suture guide sub-system that is adapted to cooperate with the suture passer sub-system, the cooperation including engaging and retaining sutures releasably secured to the suture passer sub-system after the sutures are inserted into and through the tissue with the suture passer sub-system, the suture passer sub-system and sutures are advanced into the suture guide sub-system, and the suture passer sub-system and sutures are subsequently withdrawn out of the suture guide sub-system.

The utility model discloses a coronary artery bypass suture guiding device, which belongs to the technical field of medical instruments and comprises a guiding piece and a handheld piece, two guiding grooves are formed in the guiding piece and are respectively positioned on the front side and the back side of the guiding piece, the end part of one guiding groove extends to the outside of the guiding piece, and the end part of the other guiding groove extends to the outside of the handheld piece. The guide groove is used for containing a suture needle, the radian of the guide groove is the same as that of the suture needle, the guide groove is used for limiting the movement track of the suture needle when the suture needle is withdrawn, and the end of the handheld piece is connected with the guide piece and used for driving the suture needle in the guide piece to be located at the suture position of a coronary target blood vessel. The motion trail of the suture needle is limited under the action of the guide groove with the same radian as the suture needle, an operator can be helped to control the path of the suture needle more accurately, and therefore when the suture needle is withdrawn, the situation that the suture needle sutures the rear wall or the side wall of a coronary blood vessel, and consequently the coronary blood vessel is blocked or narrowed is avoided.

A surgical guidewire device includes an outer tube and a guide needle. The outer tube has a needle tip formed at a tube distal end of the outer tube. The guide needle is movably disposed in the outer tube and has a needle eye structure. When the surgical guidewire device is in use, a suture extends through the needle eye structure, and is carried through the outer tube along with the needle eye structure as the guide needle is moved relatively toward the tube distal end and then away from the outer tube.

This invention relates to the field of medical device technology, specifically to a suturing instrument for minimally invasive suturing of acute Achilles tendon ruptures. It includes a suture guide, a needle holder, and a guide needle. Both the guide needle and the needle holder are arc-shaped, and the arc of the guide needle matches that of the needle holder. The suture guide has an arc-shaped rack inside, and the needle holder is fixedly connected to the arc-shaped rack. Symmetrical arc-shaped grooves are formed on the inner sidewall of the suture guide, with the arc-shaped rack and the arc-shaped grooves slidingly engaged. A rotating shaft is rotatably engaged on the sidewall of the suture guide. One end of the rotating shaft is coaxially fixedly connected to a handwheel, and the other end of the rotating shaft has a driving component for driving the arc-shaped rack to move within the arc-shaped grooves. The suture guide includes a clamping component to prevent the guide needle from falling out. It also includes a guiding system for guiding the guide needle during suturing. This invention designs the guide needle as an arc-shaped structure and allows for telescopic adjustment, keeping the extended portion of the guide needle parallel to the suture guide to reduce puncture resistance and prevent the guide needle from bending or rotating during puncture.

The application discloses a free connective tissue clamping and suturing guide, and solves the problem of unstable clamping of free connective tissue in the prior art, and has the beneficial effect of stable clamping of free connective tissue and no excessive extrusion force, and the specific scheme is as follows: a free connective tissue clamping and suturing guide, comprising a clamping component, the clamping component comprising two clamping pieces, one end of the two clamping pieces being connected and the angle between the two clamping pieces being adjustable, a limiting piece being arranged on the inner side of the clamping piece, a first supporting part being arranged at the free end of one of the clamping pieces, a second supporting part being arranged at the free end of the other clamping piece, the first supporting part being provided with a first opening and a second opening, a communication channel being arranged between the first opening and the second opening, the second supporting part being provided with a third opening and a fourth opening, the third opening and the fourth opening being respectively communicated with the side of the second supporting part, and the first opening and the third opening and the second opening and the fourth opening being positionally corresponding when the clamping component clamps the free connective tissue.