Full-suture anchor implanting device with end guiding function
By designing a fully suture anchor implantation device that integrates a flexible guide tube and a guide ring, the problems of angle adjustment difficulties and alignment loss during drilling and implantation steps in existing technologies have been solved, resulting in shorter operation time and improved efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-16
- Publication Date
- 2026-04-10
AI Technical Summary
Existing suture anchor implantation devices are difficult to adjust the end angle under non-linear approaches, which prolongs the operation time and makes it easy to lose alignment when switching between drilling and implantation steps, affecting the efficiency and accuracy of the operation.
Design a full-suture anchor implantation device with end-guided function. It adopts a flexible guide tube composed of multiple guide joints with spherical hinges, combined with a guide ring, to realize continuous operation of drilling and implantation. By integrating the guiding function through the flexible guide tube and guide ring, it can adapt to anchor holes of various angles and reduce the misalignment caused by instrument switching.
It effectively solves the alignment problem under non-linear approach, shortens operation time, improves surgical efficiency and precision, and reduces the problem of alignment loss caused by instrument switching.
Smart Images
Figure CN224099386U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to human life necessity, especially, surgical instruments, a kind of full suture anchor implantation device with end guiding function especially. BACKGROUND
[0002] Full suture anchor is a kind of soft tissue fixing device widely used in orthopedics and sports medicine surgery, especially suitable for rotator cuff repair, ligament reconstruction and other minimally invasive arthroscopic surgery. Its core feature is that the anchor body is composed of suture braiding head, and the suture is arranged in the braiding head. By tightening the suture, the braiding head is expanded in the bone channel to achieve locking. No traditional metal or absorbable material anchor body is needed, which avoids the residue in the body and reduces the bone mass damage. In clinical operation, anchor hole is usually prepared on the bone surface first, and then the implantation device is aligned with the hole, and the anchor is pushed to the appropriate depth.
[0003] In the prior art, the implantation device adopts rigid straight rod structure, which is effective in dealing with most straight or gently angled surgical approaches, but the implantation device with such rigid straight rod structure has the following disadvantages.
[0004] 1. Human body skeleton anatomical structure is complex, especially in the case of limited arthroscopic surgery field, the surgical approach and the ideal bone channel axis often have a large angle, at this time, the rigid implantation device is difficult to adjust the end angle, which leads to the fact that the operator cannot accurately align and smoothly implant the anchor in the non-linear anchor hole, and is often forced to change the drilling direction, enlarge the surgical incision or adjust the patient's position, which increases the difficulty, trauma risk and uncertainty of the operation.
[0005] 2. In the prior art, drilling and anchor implantation are two separate steps. The operator needs to drill the hole to prepare the bone channel first, then withdraw the drill, and then replace the implantation device to implant the anchor. This process not only prolongs the operation time, but also may lose the bone channel alignment when switching instruments, especially in the angle of the position, it is very difficult to re-align the hole, which affects the operation efficiency and implantation accuracy. UTILITY MODEL CONTENTS
[0006] The utility model aims at providing a full suture anchor implantation device with end guiding function, which solves the technical problems of difficult end angle adjustment, long operation time and difficult hole alignment when drilling and implanting of the full suture anchor implantation device with rigid straight rod structure in the prior art.
[0007] The utility model provides a kind of full suture anchor implantation device with end guiding function, including operating handle, the front end of operating handle is provided with straight pipe, one reciprocating mechanism is provided in operating handle, the front end of straight pipe is coaxially provided with guide pipe, guide pipe is sequentially head-to-tail spherical hinged by multiple guide joints, front and rear through guide channel is respectively provided in any guide joint, the guide channel of all guide joints is interconnected and constitutes the lumen of guide pipe;The front end of guide pipe is provided with implantation tube;Implantation tube, guide pipe and straight pipe are sequentially communicated;In the lumen of implantation tube, the lumen of guide pipe and the lumen of straight pipe, it is also provided with a inner tube, the inner tube is flexible pipe;The rear end of inner tube is connected with the reciprocating mechanism in operating handle;The lumen of implantation tube is provided with the anchor knitting head of full suture anchor, the anchor knitting head is located at the front end of inner tube, suture is provided on the anchor knitting head, the front end of anchor knitting head is connected with suture, and the rear end of suture sequentially passes through the lumen of inner tube and operating handle and extends to the rear end of operating handle.
[0008] Further, the implantation tube is spherical hinged with the front end of the guide pipe.
[0009] Further, the front end of any guide joint is provided with a ball pin, and the rear end of any guide joint is provided with a ball seat.
[0010] Further, a piston is provided in the housing of the operating handle, the front end of the piston is fixedly connected with the rear end of the inner tube, the rear section of the operating handle is provided with a rotating section, the rotating section rotates around the axis of the operating handle, and the inner wall of the rotating section and the outer wall of the piston form a threaded pair.
[0011] Further, a first guide ring is provided on the outer wall of each guide joint, and the axis of the first guide ring is parallel to the axis of the guide joint.
[0012] Further, the adjacent two first guide rings are connected by a flexible connecting belt.
[0013] Further, a second guide ring is provided on the outer wall of the straight pipe, and the axis of the second guide ring is parallel to the axis of the straight pipe.
[0014] Compared with the prior art, the utility model has the following advantages:
[0015] 1.The utility model discloses a flexible guide pipe which is composed of a plurality of guide joints, and a surgeon can manually bend the guide pipe segment during operation, so that the implantation pipe nozzle at the front end of the guide pipe can adapt to anchor hole of various angles, effectively solving the alignment problem of rigid implantation device under non-linear approach.
[0016] 2.The utility model discloses a guide ring is arranged on the outer wall of the guide joint and the straight pipe, the guide function of the soft drill is integrated on the implantation device, realizes the continuous operation of two steps of drilling and implantation, avoids the alignment loss problem caused by instrument switching, shortens the operation time, and improves the operation efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the structure schematic diagram of example one in the utility model.
[0018] Figure 2 It is the section structure schematic diagram of example one in the utility model.
[0019] Figure 3 It is the structure schematic diagram of guide joint in example one in the utility model.
[0020] Figure 4 It is the section structure schematic diagram of guide joint in example one in the utility model.
[0021] Figure 5 It is the anchor nail state schematic diagram when S3 operation step of example one in the utility model.
[0022] Figure 6 It is the anchor nail state schematic diagram when S4 operation step of example one in the utility model.
[0023] Figure 7 It is the anchor nail state schematic diagram when S5 operation step of example one in the utility model.
[0024] Figure 8 It is the structure schematic diagram of example two in the utility model.
[0025] In the drawing: 1, operating handle;11, rotating segment;12, reciprocating mechanism;2, straight pipe;3, guide pipe;4, implantation pipe;5, guide joint;51, ball pin;52, ball seat;53, guide channel;6, inner tube;7, anchor nail braiding head;71, suture;8, first guide ring;9, second guide ring. DETAILED DESCRIPTION
[0026] The following examples will further illustrate the utility model, but not limit the utility model.
[0027] Example one
[0028] AsFigures 1 to 4 The embodiment shown provides a full-suture anchor implantation device with end guiding function, which comprises an operating handle 1, a straight pipe 2 fixedly installed at the front end of the operating handle 1, the straight pipe 2 being a rigid pipe, and a reciprocating mechanism 12 arranged in the operating handle 1.
[0029] A guide pipe 3 is coaxially and fixedly arranged at the front end of the straight pipe 2, the guide pipe 3 being composed of a plurality of guide links 5 which are sequentially and spherically hingedly connected in a head-to-tail manner, so that the pipe body of the guide pipe 3 can be controllably bent; during operation, the operator can manually bend the guide pipe 3 outside the body and flexibly adjust the direction of the front end outlet of the guide pipe 3, so as to cope with the non-linear surgical approach.
[0030] The guide pipe 3 is composed of a plurality of guide links 5 which are sequentially and spherically hingedly connected in a head-to-tail manner; each of the guide links 5 is respectively provided with a front-to-rear through guide channel 53, the inner wall of the guide channel 53 being smooth to reduce friction, the guide channels 53 of all the guide links 5 being interconnected to form a lumen of the guide pipe 3; the lumen of the guide pipe 3 after interconnection forms a continuous and smooth internal path, and the lumen of the guide pipe 3 provides a channel for the passage of the following inner pipe 6, so as to ensure that the inner pipe 6 can still move smoothly in the bent state of the guide pipe 3.
[0031] Further, the specific spherical hinging manner is that the front end of each of the guide links 5 is respectively provided with a ball pin 51, the rear end of each of the guide links 5 is respectively provided with a ball seat 52, and any one of the guide links 5 is hingedly connected with the ball seat 52 of the adjacent guide link 5 in front thereof through the ball pin 51 thereof, so as to realize multi-stage bending of the guide pipe 3; the spherical hinging position of the guide link 5 has appropriate frictional damping, so that the bending angle of the guide pipe 3 after manual bending can be fixed.
[0032] The implantation pipe 4 is spherically hingedly connected to the front end of the guide pipe 3, the implantation pipe 4 being a rigid pipe and being used for inserting into a bone tunnel for anchor implantation; the lumens of the implantation pipe 4, the guide pipe 3 and the straight pipe 2 are sequentially aligned and communicated to form a complete working channel.
[0033] An inner pipe 6 is further arranged in the lumen of the implantation pipe 4, the lumen of the guide pipe 3 and the lumen of the straight pipe 2, the inner pipe 6 being a flexible pipe; the rear end of the inner pipe 6 is connected with the reciprocating mechanism 12 in the operating handle 1, the reciprocating mechanism 12 driving the inner pipe 6 to make reciprocating movement along the axis of the inner pipe 6; the inner pipe 6 can transmit the linear thrust generated by the operating handle 1 to the anchor weaving head 7 at the most front end, so as to realize pushing implantation of the anchor weaving head 7.
[0034] The specific driving mode is that an axially movable piston is arranged in the shell of the operating handle 1, the front end of the piston is fixedly connected with the inner tube 6, the rear end of the operating handle 1 is provided with a rotating section 11 which rotates around an axis, the inner wall of the rotating section 11 and the outer wall of the piston form a threaded pair, in addition, the outer wall of the piston is matched with the inner wall of the operating handle 1 through a guide mechanism (such as a guide strip and a guide groove) arranged along the axial direction of the operating handle 1, so that when the rotating section 11 rotates, the threaded pair converts the rotating motion into the linear motion of the piston, and the piston drives the inner tube 6 to move forward or backward along the axis, so that the operator can exert a linear pushing force on the inner tube 6 through a simple rotating action.
[0035] Those skilled in the art should understand that the operating handle 1 and the reciprocating mechanism 12 in the inner part thereof in the embodiment are only one specific way to realize the reciprocating motion, and the driving function can also be replaced by other existing mechanisms or mature technical solutions which can realize linear reciprocating output.
[0036] The anchor weaving head 7 is arranged in the lumen of the implant tube 4 and located in front of the front end of the inner tube 6, the anchor weaving head 7 is arranged in the implant tube 4 in a compressed state before implantation, the anchor weaving head 7 is provided with a suture 71, the suture 71 passes through the lumens of the inner tube 6 and the operating handle 1 in sequence and is arranged at the rear end of the operating handle 1, after the anchor weaving head 7 is implanted in place, the operator can make the anchor weaving head 7 expand and fix by pulling the tail end of the suture 71 at the rear end of the handle.
[0037] As shown in Figures 5 to 7 , the specific operation steps are as follows:
[0038] S1: using drilling instruments to prepare a bone tunnel required for anchor implantation on the target bone surface.
[0039] S2: before the device is inserted into the body, the operator manually bends the guide tube 3 part outside the body according to the surgical approach direction, so that the front end of the implant tube 4 is matched with the bone tunnel axis.
[0040] S3: the device with the adjusted angle is sent into the body through the surgical incision, so that the implant tube 4 nozzle is aligned with the prepared bone tunnel entrance.
[0041] S4: keep the handle stable, slowly rotate the rotating section 11 at the tail end of the handle, the inner piston pushes the inner tube 6 to move forward, the front end of the inner tube 6 smoothly pushes the anchor weaving head 7 out of the implant tube 4 and sends it into the bone tunnel to a preset depth; Figure 6 The arrow in the figure indicates the advancing direction of the inner tube 6.
[0042] S5: keep the device position unchanged, pull the suture 71 drawn from the rear end of the handle, so that the anchor weaving head 7 in the bone tunnel expands and locks in the bone tissue; Figure 7The arrow in the figure indicates the pulling direction of the suture 71.
[0043] S6: After confirming the firm anchoring, reverse the handle to withdraw the inner tube 6 into the implant tube 4, and then take the entire device out of the body along the access.
[0044] Example Two
[0045] As shown in the figure, this embodiment is a preferred solution of Example One, further adding the soft drill guiding function. Figure 8
[0046] A first guide ring 8 is fixed on the outer wall of each guide link 5, and the axis of the first guide ring 8 is parallel to the axis of the guide link 5. When multiple guide links 5 with first guide rings 8 are connected in series and bent, the rings will naturally arrange into a curve channel consistent with the bending shape of the guide tube 3, thereby providing a guiding path for the soft drill and other auxiliary instruments.
[0047] Further, a second guide ring 9 is fixed on the outer wall of the straight tube 2, and the axis of the second guide ring 9 is parallel to the axis of the straight tube 2. The second guide ring 9 has the same inner diameter as the first guide ring 8, and together they form a guiding path outside the device. A gap should be left between two adjacent first guide rings 8 to accommodate bending.
[0048] In a preferred embodiment, the adjacent two first guide rings 8 can be connected by a flexible connecting band to avoid misalignment.
[0049] The first guide ring 8 and the second guide ring 9 cooperatively form a soft drill guiding channel, so that the operator can first guide the soft drill to drill a hole using this channel without changing the position and angle of the implant device main body. After drilling is completed, the implant tube 4 is translated to position, and anchoring can be immediately performed. This design integrates drilling and implanting into a continuous operation process, reducing the operation time and solving the problem of difficult to find the position during instrument switching, which leads to loss of position.
[0050] In the description of the utility model, need understanding is, the term "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, just is for the convenience of describing the present application and simplifying the description, and is not indicate or imply that the indicated device or element must have a particular orientation, is constructed and operated with a particular orientation, therefore can not be understood as the limitation to the present application. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features to the foregoing each embodiment;And these modifications or replacements, do not make the essence of corresponding technical scheme deviate from the spirit and scope of the utility model each embodiment technical scheme.
Claims
1. A full-suture anchor implantation device with end guiding function, comprising an operating handle, a straight pipe is arranged at the front end of the operating handle, a reciprocating mechanism is arranged in the operating handle, characterized in that: The front end of the straight tube is coaxially provided with a guide tube, the guide tube is sequentially and end-to-end spherically hinged by a plurality of guide links, each of the guide links is respectively provided with a front-to-rear through guide channel, and the guide channels of all the guide links are interconnected to form a lumen of the guide tube; The front end of the guide tube is provided with an implant tube; the implant tube, the guide tube and the straight tube are sequentially communicated; An inner tube is further provided in the lumens of the implant tube, the guide tube and the straight tube, the inner tube is a flexible tube; the rear end of the inner tube is connected with the reciprocating mechanism in the operating handle; A suture anchor weaving head of a full-suture anchor is arranged in the lumen of the implant tube, the suture anchor weaving head is located at the front end of the inner tube, the suture anchor weaving head is provided with a suture, the front end of the suture is connected with the suture anchor weaving head, and the rear end of the suture sequentially passes through the lumen of the inner tube and the operating handle and extends to the rear end of the operating handle.
2. The all-suture anchor implantation device with end guiding function according to claim 1, characterized in that: The implant tube is spherically hinged with the front end of the guide tube.
3. The all-suture anchor implantation device with end guiding function according to claim 1, characterized in that: The front end of each of the guide links is provided with a ball pin, and the rear end of each of the guide links is provided with a ball seat; except for the guide link at the frontmost end of the guide tube, any one of the guide links is hinged with the ball seat of the guide link adjacent in front through the ball pin thereof.
4. The all-suture anchor implantation device with end guiding function according to claim 1, characterized in that: A piston is arranged in the housing of the operating handle, the front end of the piston is fixedly connected with the rear end of the inner tube; the rear section of the operating handle is provided with a rotating section, the rotating section rotates around the axis of the operating handle, and the inner wall of the rotating section and the outer wall of the piston form a threaded pair.
5. The all-suture anchor implantation device with end guiding function according to claim 1, characterized in that: A first guide ring is arranged on the outer wall of each of the guide links, and the axis of the first guide ring is parallel to the axis of the guide link.
6. The all-suture anchor implantation device with end guiding function according to claim 5, characterized in that: Two adjacent first guide rings are connected through a flexible connecting belt.
7. The all-suture anchor implantation device with end guiding function according to claim 5, characterized in that: A second guide ring is arranged on the outer wall of the straight tube, and the axis of the second guide ring is parallel to the axis of the straight tube.