CN112971884B - Suture anchor implantation device - Google Patents
Suture anchor implantation device Download PDFInfo
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- CN112971884B CN112971884B CN202110152501.1A CN202110152501A CN112971884B CN 112971884 B CN112971884 B CN 112971884B CN 202110152501 A CN202110152501 A CN 202110152501A CN 112971884 B CN112971884 B CN 112971884B
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- suture anchor
- suture
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/064—Surgical staples, i.e. penetrating the tissue
- A61B17/0642—Surgical staples, i.e. penetrating the tissue for bones, e.g. for osteosynthesis or connecting tendon to bone
Abstract
The invention relates to a suture anchor implanting device, which comprises a self-drilling rod body (1), a nail body (2), a suture anchor (5) and a fixed suture (6); two wire accommodating grooves (8) are formed on the outer surface of the self-drilling rod body (1) along the length direction; the nail body (2) is connected with one end of the self-drilling rod body (1) in a key way; a through hole I (12) is arranged on the nail body (2), and one end of the nail body (2) is a tip end; the suture anchor (5) and the fixed suture (6) pass through the through hole I (12), two ends of the fixed suture (6) respectively penetrate out along the two wire accommodating grooves (8), and two ends of the suture anchor (5) are free ends. According to the suture anchor implanting device, the suture anchor can be automatically knotted in the implanting process, and the suture anchor does not need to be subsequently pulled to be knotted; the knot forming position is fixed, and no wire knot displacement is generated; the hole depth is relatively shallow, and the bone removal amount is small; the interference between the holes is small, the number of implantable anchor points in unit area is large, and the range of operation selectable areas is wide.
Description
Technical Field
The invention belongs to the technical field of suture anchors and relates to a suture anchor implanting device.
Background
With the development of orthopedic sports medicine, injury repair operations such as rotator cuff repair operation, hip labrum repair operation and the like are more and more widely concerned and applied. A common method of revision surgery is to implant an anchor into bone and secure the injured tendon or other tissue to the bone by self-threading the anchor to the bone. The anchor is in the form of a rigid anchor such as a titanium alloy anchor, a PEEK anchor, etc., and a recently developed full suture anchor, which is flexible. At present, in the process of implanting the full-suture anchor, a pre-drilling hole needs to be made on a bone, then the suture anchor is implanted into the hole, or an inserter with the suture anchor is directly hammered and knocked into the bone, in addition, the self-drilling suture anchor inserter carries the suture anchor to be drilled into the bone, finally, the three methods all need to draw the suture to enable the suture anchor entering the bone passage to be knotted, the transverse diameter (vertical to the central axis of the bone hole) of the knotted suture anchor is enlarged and clamped in the bone to complete the fixation of the bone, and the suture on the anchor finishes the fixation of tendons or other tissues through a thread passing device.
The knot forming mode in the prior art is that after a suture anchor enters a bone, a suture is pulled to tighten, after the suture anchor is tightened, displacement is generated in a knot, the fixed position of the knot has certain randomness, a bone cavity is reserved below the knot, the bone removal amount is large, meanwhile, the knot needs to enter a relatively deep position of the bone when pre-drilling, knocking-in or self-drilling so as to reserve the allowance of the displacement of the knot, the deeper the hole is, the larger the interference influence between the hole and the hole is, therefore, the number of implanted anchor points in a unit area is limited to a certain extent, the knot forming mode is limited by the size and the material of the knot, and the fixed strength of the knot is limited to a certain extent. Meanwhile, the pre-drilling method needs the suture anchor to be aligned with the pre-drilled hole to enter the bone hole when being implanted, the situation that the suture anchor cannot be inserted and cannot be deployed due to deviation can occur, and the pre-drilled hole needs to be drilled again; the knock-in requires hammering of the inserter, applying impact forces to the bone, and may cause additional loss, especially if the bone is small.
Therefore, the research on a novel suture anchor implantation device has very important significance.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a suture anchor implanting device. The invention aims to solve the technical problem of providing the suture anchor implanting device for drilling and automatically forming knots through friction in one operation, the device integrally completes the implantation and the knot formation of the suture anchor, the bone moving-out amount is small, the anchoring position is accurate, the fixing strength is high, the number of implanted anchors in a unit area is large, the time can be saved, the bone defect is reduced, the probability of operation failure caused by the positioning deviation in the operation is reduced, the risk of the implant coming out is reduced, the operation area is expanded, the operation efficiency, the accuracy, the range and the quality are greatly improved, meanwhile, the injury to a human body is reduced, and the device is beneficial to the quick recovery of a patient.
In order to achieve the purpose, the invention adopts the following scheme:
a suture anchor implantation device comprises a self-drilling rod body, a nail body, a suture anchor and a fixed suture;
two wire accommodating grooves are formed on the outer surface of the self-drilling rod body along the length direction; the nail body is connected with one end of the self-drilling rod body in a key mode; the nail body is provided with a through hole I, and one end of the nail body is a tip, namely a drill point;
the suture anchor and the fixed suture pass through the through hole I, two ends of the fixed suture pass through the two wire accommodating grooves respectively, and two ends of the suture anchor are free ends.
As a preferred technical scheme:
the suture anchor implanting device is characterized in that the self-drilling rod body is made of metal, such as stainless steel, titanium alloy, nickel-titanium alloy and the like, and the nail body is made of biodegradable and absorbable material, such as levorotatory polylactic acid, dextrorotatory polylactic acid, racemic polylactic acid, lactic acid-glycolic acid copolymer or a mixture of lactic acid-glycolic acid copolymer and tricalcium phosphate, calcium hydroxy phosphate, magnesium alloy and the like; the nail body can also be made of a biodegradable and absorbable material, such as stainless steel, titanium alloy, nickel-titanium alloy, PEEK and the like.
According to the suture anchor implanting device, the key connection of the nail body and one end of the self-drilling rod body means that one end of the nail body is inserted into one end of the self-drilling rod body; one end of the self-drilling rod body is a cylindrical structure with a polygonal or quincuncial cross section, and one end of the nail body inserted into the self-drilling rod body is provided with a polygonal or quincuncial channel matched with the cylindrical structure.
A suture anchor implantation device as described above, the polygon being a rectangle or a hexagon.
According to the suture anchor implanting device, one end of the self-drilling rod body, which is far away from the nail body, is provided with the drill handle, and the drill handle is connected with the electric device; the suture anchor and the fixation suture are entangled and then passed through the through hole I.
A suture anchor implantation device as described above, further comprising a suture anchor helical groove member;
the suture anchor spiral groove component is a hollow cylinder with a spiral groove on the outer side wall;
the self-drilling rod body, the suture anchor spiral groove component and the nail body are connected in sequence;
alternatively, the suture anchor helical groove member and the nail body are an integrally formed piece that is keyed to the self-drilling shank body.
The suture anchor implanting device as described above, a lead angle of the spiral groove is 5 to 45 °. When the helix angle is too small, the friction force between the suture anchor and the spiral groove component is too large, so that the suture anchor is prevented from sliding in the spiral groove and gathering towards the front end, the longitudinal size of the formed spiral knot is lengthened, the transverse size of the formed spiral knot is narrowed, and the fixing strength is reduced; the thread anchor and the spiral groove component have too small friction force due to too large helix angle, the thread anchor slides in the spiral groove and gathers at too high speed towards the front end, and the expanded aperture effect generated by the friction between the thread anchor and the bone wall is delayed, so that the spiral knot can not be formed orderly; the lead angle in the range of 5 to 45 is considered to be a suitable angle for orderly forming the high-fixation-strength spiral knot.
In the suture anchor implanting device, the through hole II is formed in the suture anchor spiral groove component along the height direction of the cylinder;
the suture anchor and the fixed suture form a three-section combined wire, the first section and the third section are fixed sutures, and the second section is the suture anchor;
the suture anchor of the second section is connected with the first section and the third section in a sewing or weaving mode; or the suture anchor of the second section is of a hollow structure and is sleeved on the fixed suture;
one end of the three-section combined wire rod sequentially passes through a wire accommodating groove, a through hole II and a through hole I of the self-drilling rod body from the drill handle to the nail body, and the three-section combined wire rod penetrating out of the through hole I is wound on the spiral groove from the nail body to the drill handle and is placed in the other wire accommodating groove; the suture anchor of the second segment is located on the helical groove.
In a suture anchor implantation device as described above, when the suture anchor of the second segment is connected to the first segment and the third segment by sewing or braiding, the cross-sectional area of the suture anchor is larger than the cross-sectional area of the fixation suture.
A suture anchor implantation device according to any of the preceding claims, further comprising a wire clamp; the wire clamp is of a hollow structure, and a wire pressing groove is formed in the inner side wall of the wire clamp; the wire clamp is set up or is fixed to be set up on the body of rod from the drilling, and the fixed concrete mode that sets up on the body of rod from the drilling of fastener is: the wire clamp and the self-drilling rod body are both provided with pin holes, and a pin penetrates through the pin holes of the wire clamp and the self-drilling rod body to be fixed; a threaded hole is formed in the wire clamp, and a set screw enters the threaded hole in a screwed mode to be fixed; the line pressing groove is arranged in the line accommodating groove, and the line pressing groove and the line accommodating groove are in clearance fit.
The principle of the invention is as follows:
the invention relates to a suture anchor implanting device, which can automatically form knots through friction between a suture anchor and a bone wall: in the drilling process of the device, the nail body rotates and moves downwards at the same time, the far end of the suture anchor at the position of a nail groove (namely a through hole I) of the nail body is firstly contacted with the bone wall of a drilled hole, the suture anchors at two sides of the position move towards the direction of the axial pointed end and the transverse direction opposite to the drilling rotation at the same time relative to the nail body under the action of friction force with the bone wall, the transverse area of the suture anchor at the position is increased under the condition of the same height, and meanwhile, the suture anchor twists to form wrinkles due to the simultaneous movement of the two directions. After the suture anchor is rapidly drilled to the required depth, the transverse area of the suture anchor at the position of the nail groove is larger, and the suture anchor is twisted to form a fold, so that the friction force between the suture anchor and the bone wall is larger, the hole diameter is rapidly expanded, other parts of the suture anchor are driven to approach the position of the nail groove in a spiral mode (the structure with the spiral groove plays a spiral guiding role, so that spiral knots are more orderly), the transverse diameter of the suture anchor at the position is expanded, the hole diameter at the position is further expanded, and the reciprocating operation is carried out, and finally a spiral knot gathered at the position close to the nail groove is formed.
The prior art puts into the hole with the suture anchor of fixed suture earlier, and the suture anchor is in free state this moment, needs to rely on manual tractive fixed suture, drives the suture anchor and shifts up and contract in the hole, and the horizontal size of suture anchor increases gradually and extrudes the bone wall and becomes the knot, and the resistance increases, and when the resistance was greater than the pulling force of fixed suture, the suture anchor was fixed and is accomplished. In this process, the suture anchor moves up in the hole, and therefore the hole depth needs to be deeper than the intended knot formation location, and the amount of bone removed is large. The invention automatically finishes the knotting action in the drilling process without the traction of a fixed suture, thereby controlling the hole depth to be shallower and removing less bone. Meanwhile, in the prior art, the increase of the transverse size of the suture anchor knot is limited by manual traction, and the fixing strength is limited within the traction force.
The suture anchor implanting device of the invention has the working principle that:
the drill stem part of the suture anchor implanting device is loaded to an electric tool, a proper operation bone surface position is selected, the drill is slightly stopped after the drill is drilled into a required depth, the suture anchor automatically forms a spiral knot, the suture anchor is completely inserted into bone tissue by visual inspection, then a self-drilling rod body is drawn out, a nail body and the suture anchor form a composite spiral suture anchor to be fixed in the bone, and the fixing suture is fixed to a tendon or other soft tissues or devices through a proper tool to form the fixation of the bone and the tendon or other soft tissues or devices.
Advantageous effects
According to the suture anchor implanting device, the suture anchor can be automatically knotted in the implanting process, and the suture anchor does not need to be subsequently pulled to be knotted; the knot forming position is fixed, and no wire knot displacement is generated; the hole depth is relatively shallow, and the bone removal amount is small; the interference between the holes is small, the number of implantable anchor points in unit area is large, and the range of operation selectable areas is wide; the knot is formed by friction when forming the knot, the stress is larger, the formed knot is more compact, the transverse size is larger, meanwhile, a part of rigid bodies are left in bones, the fixing strength is higher, the operation efficiency, the accuracy, the range and the quality are greatly improved, meanwhile, the injury to a human body is reduced, and the quick rehabilitation of a patient is facilitated.
Drawings
FIG. 1 is a schematic view of a suture anchor implantation device assembly configuration;
FIG. 2 is an exploded view of the suture anchor implantation device;
FIG. 3 is a detail view of a self-drilling mast body;
FIG. 4 is a detailed view of the nail body;
FIG. 5 is a detail view of the clamp and assembly;
FIG. 6 is a detail view of the suture anchor and fixation suture assembly;
FIG. 7 is a detail view of the assembly of 2 anchoring sutures of the suture anchor band;
FIG. 8 is a schematic view of an assembled structure of a suture anchor implantation device with a helical groove;
FIG. 9 is an exploded view of a suture anchor implantation device with a helical groove;
FIG. 10 is a detail view of a self-drilling rod body with a spiral groove;
FIG. 11 is a detailed view of the shank;
FIG. 12 is a detail view of the suture anchor and fixation suture assembly;
FIG. 13 is a detail view of the assembly of the suture anchor, the fixation suture and the self-drilling rod body and the nail body;
FIG. 14 is a schematic view of a drilled nodule;
fig. 15 is a schematic view of the final junction.
The self-drilling screw comprises a self-drilling rod body, a screw body, a wire clamp, a pin, a suture anchor, a fixing suture, a cylindrical body structure, a wire accommodating groove, a pin hole, a drill handle, a drill tip, a through hole I, a through hole 13, a wire pressing groove 14, a spiral groove 15 and a through hole II, wherein the self-drilling rod body is 1, the screw body is 2, the wire clamp is 3, the pin is 4, the suture anchor is 5, the fixing suture is 6, the cylindrical body structure is 7, the wire accommodating groove is 8, the pin hole is 9, the drill handle is 10, the drill tip is 11, the through hole I and the through hole II are 12.
Detailed Description
The present invention will be further described with reference to the following embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention can be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the claims appended to the present application.
A suture anchor implantation device comprises a self-drilling rod body, a nail body, a suture anchor and a fixed suture;
two wire accommodating grooves are formed on the outer surface of the self-drilling rod body along the length direction; the nail body is connected with one end of the self-drilling rod body in a key mode; the nail body is provided with a through hole I, and one end of the nail body is a tip, namely a drill point;
the suture anchor and the fixed suture pass through the through hole I, two ends of the fixed suture pass through the two wire accommodating grooves respectively, and two ends of the suture anchor are free ends.
As a preferred technical scheme:
the suture anchor implanting device is characterized in that the self-drilling rod body is made of metal, such as stainless steel, titanium alloy, nickel-titanium alloy and the like, and the nail body is made of biodegradable and absorbable material, such as levorotatory polylactic acid, dextrorotatory polylactic acid, racemic polylactic acid, lactic acid-glycolic acid copolymer or a mixture of lactic acid-glycolic acid copolymer and tricalcium phosphate, calcium hydroxy phosphate, magnesium alloy and the like; the nail body can also be made of a biodegradable and absorbable material, such as stainless steel, titanium alloy, nickel-titanium alloy, PEEK and the like.
According to the suture anchor implanting device, the key connection of the nail body and one end of the self-drilling rod body means that one end of the nail body is inserted into one end of the self-drilling rod body; one end of the self-drilling rod body is of a cylindrical structure with a polygonal or quincunx cross section, and one end, inserted into the self-drilling rod body, of the nail body is provided with a polygonal or quincunx channel matched with the cylindrical structure.
A suture anchor implantation device as described above, the polygon being a rectangle or a hexagon.
According to the suture anchor implanting device, one end of the self-drilling rod body, which is far away from the nail body, is provided with the drilling handle, and the drilling handle is connected with the electric device; the suture anchor and the fixation suture are entangled and then passed through the through hole I.
A suture anchor implantation device as described above, further comprising a suture anchor helical groove member;
the suture anchor spiral groove component is a hollow cylinder with a spiral groove on the outer side wall;
the self-drilling rod body, the suture anchor spiral groove component and the nail body are connected in sequence;
alternatively, the suture anchor helical groove member and the nail body are an integrally formed piece that is keyed to the self drilling rod body.
The suture anchor implanting device as described above, a lead angle of the spiral groove is 5 to 45 °. The over-small helix angle leads to over-large friction force between the suture anchor and the spiral groove component, thereby preventing the suture anchor from sliding in the spiral groove and gathering towards the front end, the longitudinal dimension of the formed spiral knot is lengthened, the transverse dimension is narrowed, and the fixing strength is reduced; the thread anchor and the spiral groove component have too small friction force due to too large helix angle, the thread anchor slides in the spiral groove and gathers at too high speed towards the front end, and the expanded aperture effect generated by the friction between the thread anchor and the bone wall is delayed, so that the spiral knot can not be formed orderly; a lead angle in the range of 5 ° to 45 ° is considered to be a suitable angle for orderly forming a high fixation strength helical junction.
In the suture anchor implanting device, the through hole II is formed in the suture anchor spiral groove component along the height direction of the cylinder;
the suture anchor and the fixed suture form a three-section combined wire, the first section and the third section are fixed sutures, and the second section is the suture anchor;
the suture anchor of the second section is connected with the first section and the third section in a sewing or weaving mode; or the suture anchor of the second section is of a hollow structure and is sleeved on the fixed suture;
one end of the three-section combined wire rod sequentially passes through a wire accommodating groove, a through hole II and a through hole I of the self-drilling rod body from the drill handle to the nail body, and the three-section combined wire rod penetrating out of the through hole I is wound on the spiral groove from the nail body to the drill handle and is placed in the other wire accommodating groove; the suture anchor of the second segment is located on the helical groove.
In a suture anchor implanting device as described above, when the suture anchor of the second segment is connected to the first segment and the third segment by sewing or weaving, the cross-sectional area of the suture anchor is larger than the cross-sectional area of the fixation suture.
A suture anchor implantation device according to any of the preceding claims, further comprising a wire clamp; the wire clamp is of a hollow structure, and a wire pressing groove is formed in the inner side wall of the wire clamp; the line presss from both sides the cover to establish or fixed the setting on the self-drilling body of rod, and the concrete mode that the fastener is fixed to be set up on the self-drilling body of rod is: the wire clamp and the self-drilling rod body are both provided with pin holes, and a pin penetrates through the pin holes of the wire clamp and the self-drilling rod body to be fixed; a threaded hole is formed in the wire clamp, and a set screw enters the threaded hole in a screwed mode to be fixed; the line pressing groove is arranged in the line accommodating groove, and the line pressing groove and the line accommodating groove are in clearance fit.
Example 1
A suture anchor implanting device is shown in figures 1-2 and comprises a self-drilling rod body 1 made of stainless steel, a nail body 2 made of levorotatory polylactic acid, a suture anchor 5, a fixed suture 6 and a wire clamp 3;
two wire accommodating grooves 8 are formed on the outer surface of the self-drilling rod body 1 along the length direction; the nail body 2 is connected with one end of the self-drilling rod body 1; as shown in fig. 4, a through hole I12 is formed on the nail body 2, and one end of the nail body 2 is a tip, namely a drill tip 11; the nail body 2 is connected with one end of the self-drilling rod body 1 in a key mode, namely one end of the nail body 2 is inserted into one end of the self-drilling rod body 1; one end of the self-drilling rod body 1 is a cylindrical body structure 7 with a hexagonal cross section, and one end of the nail body 2 inserted into the self-drilling rod body 1 is provided with a hexagonal channel 13 matched with the cylindrical body structure;
as shown in fig. 6, after being tangled, the suture anchor 5 and one fixing suture 6 pass through the through hole I12, two ends of the fixing suture 6 respectively pass through the two wire accommodating grooves 8 on the side where the fixing suture is, and two ends of the suture anchor 5 are free ends.
As shown in fig. 3, a drill handle 10 is arranged at one end of the self-drilling rod body 1 far away from the nail body 2 and is connected with an electric device;
as shown in fig. 5, the wire clip 3 is a hollow structure, and a wire pressing groove 14 is formed on the inner side wall of the wire clip 3; the wire clamp 3 is fixedly arranged on the self-drilling rod body 1, the wire pressing groove 14 is arranged in the wire accommodating groove 8, and the wire pressing groove and the wire accommodating groove are in clearance fit; the fixed concrete mode that sets up on the self-drilling body of rod of fastener does: the wire clamp and the self-drilling rod body are both provided with pin holes 7, and the pin 4 penetrates through the pin holes of the wire clamp and the self-drilling rod body to be fixed.
Example 2
A suture anchor implanting device comprises a self-drilling rod body 1 made of titanium alloy, a nail body 2 made of stainless steel, a suture anchor 5, a fixed suture 6 and a wire clamp 3;
two wire accommodating grooves 8 are formed on the outer surface of the self-drilling rod body 1 along the length direction; the nail body 2 is connected with one end of the self-drilling rod body 1; the nail body 2 is provided with a through hole I12, and one end of the nail body 2 is a tip; the nail body 2 is connected with one end of the self-drilling rod body 1 in a key mode, namely one end of the nail body 2 is inserted into one end of the self-drilling rod body 1; one end of the self-drilling rod body 1 is of a quincunx columnar structure, and one end of the nail body 2 inserted into the self-drilling rod body 1 is provided with a quincunx channel matched with the columnar structure;
as shown in fig. 7, the suture anchor 5 and the two fixing sutures 6 are both passed through the through hole I12 after being intertwined, the four ends of the two fixing sutures 6 respectively pass through the two line accommodating grooves 8 on the side, and the two ends of the suture anchor 5 are free ends.
One end of the self-drilling rod body 1, which is far away from the nail body 2, is provided with a drilling handle 10 which is connected with an electric device;
the wire clamp 3 is of a hollow structure, and a wire pressing groove 14 is formed in the inner side wall of the wire clamp 3; the wire clamp 3 is fixedly arranged on the self-drilling rod body 1, the wire pressing groove 14 is arranged in the wire accommodating groove 8, and the wire pressing groove and the wire accommodating groove are in clearance fit;
the fixed concrete mode that sets up on the self-drilling body of rod of fastener does: the wire clamp is provided with a threaded hole, and the fastening screw enters the threaded hole in a spiral mode to be fixed.
Example 3
A suture anchor implanting device comprises a self-drilling rod body 1 made of nickel-titanium alloy, a nail body 2 made of racemic polylactic acid, a suture anchor 5, a fixed suture 6 and a wire clamp 3;
two wire accommodating grooves 8 are formed on the outer surface of the self-drilling rod body 1 along the length direction; the nail body 2 is connected with one end key of the self-drilling rod body 1; the nail body 2 is provided with a through hole I12, and one end of the nail body 2 is a tip end; the nail body 2 is connected with one end of the self-drilling rod body 1 in a key mode, namely one end of the nail body 2 is inserted into one end of the self-drilling rod body 1; one end of the self-drilling rod body 1 is a cylindrical structure with a rectangular cross section, and one end of the nail body 2 inserted into the self-drilling rod body 1 is provided with a rectangular channel matched with the cylindrical structure;
the suture anchor 5 and the fixed suture 6 penetrate through the through hole I12 after being intertwined, two ends of the fixed suture 6 penetrate out along the two line accommodating grooves 8 on the side where the two ends are located respectively, and two ends of the suture anchor 5 are free ends;
one end of the self-drilling rod body 1, which is far away from the nail body 2, is provided with a drill handle 10 which is connected with an electric device;
the wire clamp 3 is of a hollow structure, and a wire pressing groove 14 is formed in the inner side wall of the wire clamp 3; the wire clamp 3 is sleeved on the self-drilling rod body 1, the wire pressing groove 14 is arranged in the wire accommodating groove 8, and the wire pressing groove and the wire accommodating groove are in clearance fit.
Example 4
A suture anchor implanting device is shown in figures 8-9 and comprises a self-drilling rod body 1 made of stainless steel, a nail body 2 made of lactic acid-hydroxyglycolic acid copolymer, a suture anchor 5, a fixed suture 6, a suture anchor spiral groove component and a wire clamp 3;
two wire accommodating grooves 8 are formed on the outer surface of the self-drilling rod body 1 along the length direction; the self-drilling rod body 1, the suture anchor spiral groove component and the nail body 2 are connected in sequence; one end of the self-drilling rod body 1, which is far away from the nail body 2, is provided with a drill handle 10 which is connected with an electric device; as shown in fig. 11, a through hole I12 is formed on the nail body 2, and one end of the nail body 2 is a tip;
as shown in fig. 10, the suture anchor spiral groove member is a hollow cylinder having a spiral groove 15 with a lead angle of 5 ° on the outer side wall, and a through hole II16 is provided inside along the direction of the height of the cylinder;
the suture anchor 5 and the fixed suture 6 form a three-section combined wire, the first section and the third section are the fixed suture 6, and the second section is the suture anchor 5;
the suture anchor 5 of the second section is connected with the first section and the third section in a sewing mode;
one end of the three-section combined wire (namely one end of the fixed suture 6) sequentially passes through one wire accommodating groove 8, the through hole II and the through hole I12 of the self-drilling rod body 1 from the drill shank 10 to the nail body 2, and the three-section combined wire which passes through the through hole I12 is wound on the spiral groove 15 from the nail body 2 to the drill shank 10 and is arranged in the other wire accommodating groove 8; the suture anchor 5 of the second segment is located on the helical groove 15.
When the suture anchor 5 of the second section is connected with the first section and the third section in a sewing mode, the cross section area of the suture anchor 5 is larger than that of the fixed suture 6;
the wire clamp 3 is of a hollow structure, and a wire pressing groove 14 is formed in the inner side wall of the wire clamp 3; the wire clamp 3 is sleeved on the self-drilling rod body 1, the wire pressing groove 14 is arranged in the wire accommodating groove 8, and the wire pressing groove and the wire accommodating groove are in clearance fit.
Example 5
A suture anchor implanting device comprises a self-drilling rod body 1 made of stainless steel, a nail body 2 made of dextrorotatory polylactic acid, a suture anchor 5, a fixed suture 6, a suture anchor spiral groove component and a wire clamp 3;
two wire accommodating grooves 8 are formed on the outer surface of the self-drilling rod body 1 along the length direction; the suture anchor spiral groove component and the nail body 2 are an integrated piece which is connected with the self-drilling rod body 1 in a key mode; one end of the self-drilling rod body 1, which is far away from the nail body 2, is provided with a drill handle 10 which is connected with an electric device; the nail body 2 is provided with a through hole I12, and one end of the nail body 2 is a tip end;
the suture anchor spiral groove component is a hollow cylinder with a spiral groove 15 with a helix angle of 45 degrees on the outer side wall;
a through hole II is formed in the suture anchor spiral groove component along the direction of the height of the cylinder;
the suture anchor 5 and the fixed suture 6 form a three-section combined wire, the first section and the third section are the fixed suture 6, and the second section is the suture anchor 5;
the suture anchor 5 of the second segment is connected to the first and third segments by means of weaving;
one end of the three-section combined wire rod sequentially penetrates through one wire accommodating groove 8, the through hole II and the through hole I12 of the self-drilling rod body 1 from the drill handle 10 to the nail body 2, and the three-section combined wire rod penetrating out of the through hole I12 is wound on the spiral groove 15 from the nail body 2 to the drill handle 10 and is arranged in the other wire accommodating groove 8; the suture anchor 5 of the second segment is located on the helical groove 15.
When the suture anchor 5 of the second segment is connected to the first and third segments by means of weaving, the cross-sectional area of the suture anchor 5 is larger than the cross-sectional area of the fixation suture 6.
The wire clamp 3 is of a hollow structure, and a wire pressing groove 14 is formed in the inner side wall of the wire clamp 3; the wire clamp 3 is sleeved on the self-drilling rod body 1, the wire pressing groove 14 is arranged in the wire accommodating groove 8, and the wire pressing groove and the wire accommodating groove are in clearance fit.
Example 6
A suture anchor implantation device comprises a self-drilling rod body 1 made of nickel-titanium alloy, a nail body 2 made of magnesium alloy, a suture anchor 5, a fixed suture 6, a suture anchor spiral groove component and a wire clamp 3;
two wire accommodating grooves 8 are formed on the outer surface of the self-drilling rod body 1 along the length direction; the self-drilling rod body 1, the suture anchor spiral groove component and the nail body 2 are connected in a key mode in sequence; one end of the self-drilling rod body 1, which is far away from the nail body 2, is provided with a drilling handle 10 which is connected with an electric device; the nail body 2 is provided with a through hole I12, and one end of the nail body 2 is a tip;
the suture anchor spiral groove component is a hollow cylinder with a spiral groove 15 with a lead angle of 20 degrees on the outer side wall;
a through hole II is formed in the suture anchor spiral groove component along the direction of the height of the cylinder;
the suture anchor 5 and the fixed suture 6 form a three-section combined wire, the first section and the third section are the fixed suture 6, and the second section is the suture anchor 5;
as shown in fig. 12, the suture anchor 5 of the second segment is a hollow structure, and the suture anchor 5 is sleeved on the fixed suture 6 (and the relative positions of the two are relatively fixed);
as shown in fig. 13, one end of the three-segment combined wire sequentially passes through one wire accommodating groove 8, the through hole II and the through hole I12 of the drill rod body 1 from the drill shank 10 to the nail body 2, and the three-segment combined wire penetrating out of the through hole I12 is wound on the spiral groove 15 from the nail body 2 to the drill shank 10 and is placed in the other wire accommodating groove 8; the suture anchor 5 of the second segment is located on the helical groove 15.
The wire clamp 3 is of a hollow structure, and a wire pressing groove 14 is formed in the inner side wall of the wire clamp 3; the wire clamp 3 is fixedly arranged on the self-drilling rod body 1, and the wire pressing groove 14 is arranged in the wire accommodating groove 8 and is in clearance fit with the self-drilling rod body.
The concrete mode that the fastener is fixed to be set up on the self-drilling body of rod does: the wire clamp and the self-drilling rod body are both provided with pin holes, and a pin 4 penetrates through the pin holes of the wire clamp and the self-drilling rod body to be fixed; a threaded hole is formed in the wire clamp, and a set screw enters the threaded hole in a screwed mode to be fixed; the line pressing groove is arranged in the line accommodating groove, and the line pressing groove and the line accommodating groove are in clearance fit.
The suture anchor implanting device provided by the invention has the specific working process that:
after the self-drilling rod body 1 is loaded to an electric tool, the bone surface positioning position is determined according to the operation requirement, after the self-drilling rod body is rapidly drilled to the required depth, because the far end of the suture anchor 5 is folded at the position of the through hole I12, and the transverse area of the suture anchor at the position is increased under the condition of the same height, the friction with the bone wall is stronger at the position, the friction force is larger, the hole diameter of the position is rapidly expanded, other parts of the suture anchor 5 are driven to approach the position of the through hole I in a spiral mode (the structure with the spiral groove 15 plays a spiral guiding role, so that the spiral knot is formed more orderly), the transverse diameter of the suture anchor at the position is expanded, the hole diameter of the position is further expanded, and the reciprocating is carried out, and finally, a spiral knot gathered at the position close to the through hole I12 is formed, as shown in figure 14. The self-drilling shaft body 1 is removed, the shank body 2 and the helically knotted suture anchor 5 are left in the bone together to form a novel composite helical suture anchor, which functions as an anchor to the bone, and the attached fixation suture 6 is used to secure tendons or other soft tissues or devices, as shown in fig. 15.
Claims (6)
1. A suture anchor implantation device, characterized by: comprises a self-drilling rod body, a nail body, a suture anchor, a fixed suture and a suture anchor spiral groove component;
two wire accommodating grooves are formed on the outer surface of the self-drilling rod body along the length direction; the nail body is provided with a through hole I, and one end of the nail body is a tip end;
the suture anchor penetrates through the through hole I, and the suture anchor implantation device slightly stays after being drilled into the required depth, so that the suture anchor automatically forms a spiral knot; the fixed suture passes through the through hole I, and two ends of the fixed suture respectively pass through the two wire accommodating grooves; the suture anchor and the fixing suture are tangled and then pass through the through hole I; the two ends of the suture anchor are free ends;
the suture anchor spiral groove component is a hollow cylinder with a spiral groove on the outer side wall, and the spiral lead angle of the spiral groove is 5-45 degrees;
the self-drilling rod body, the suture anchor spiral groove component and the nail body are connected in a key mode in sequence; or the suture anchor spiral groove component and the nail body are integrally formed parts which are connected with the self-drilling rod body key.
2. The suture anchor implantation device according to claim 1, wherein the self-drilling shaft body is made of metal, and the nail body is made of biodegradable and absorbable material.
3. The suture anchor implantation device according to claim 1, wherein an end of the self-drilling rod body away from the nail body is a drill handle connected to an electric device.
4. The suture anchor implanting device according to claim 1, wherein the inside of the suture anchor spiral groove member is provided with a through hole II in a direction of a height of the cylinder;
the suture anchor and the fixed suture form a three-section combined wire, the first section and the third section are fixed sutures, and the second section is the suture anchor;
the suture anchor of the second section is connected with the first section and the third section in a sewing or weaving mode; or the suture anchor of the second section is of a hollow structure and is sleeved on the fixed suture;
one end of the three-section combined wire rod sequentially passes through a wire accommodating groove, a through hole II and a through hole I of the self-drilling rod body from the drill handle to the nail body, and the three-section combined wire rod penetrating out of the through hole I is wound on the spiral groove from the nail body to the drill handle and is placed in the other wire accommodating groove; the suture anchor of the second section is located on the helical groove.
5. The suture anchor implantation device according to claim 4, wherein the suture anchor of the second segment is connected to the first segment and the third segment by sewing or braiding, and the cross-sectional area of the suture anchor is larger than the cross-sectional area of the fixation suture.
6. The suture anchor implantation device according to any one of claims 1 to 5, further comprising a wire clamp; the wire clamp is of a hollow structure, and a wire pressing groove is formed in the inner side wall of the wire clamp; the wire clamp is arranged or fixedly arranged on the self-drilling rod body, the wire pressing groove is arranged in the wire accommodating groove, and the wire pressing groove and the wire accommodating groove are in clearance fit.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211435531.4A CN115737030A (en) | 2021-02-04 | 2021-02-04 | Suture anchor implantation device |
| CN202110152501.1A CN112971884B (en) | 2021-02-04 | 2021-02-04 | Suture anchor implantation device |
| PCT/CN2021/106640 WO2022166118A1 (en) | 2021-02-04 | 2021-07-16 | Suture anchor implantation device and operation method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110152501.1A CN112971884B (en) | 2021-02-04 | 2021-02-04 | Suture anchor implantation device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211435531.4A Division CN115737030A (en) | 2021-02-04 | 2021-02-04 | Suture anchor implantation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112971884A CN112971884A (en) | 2021-06-18 |
| CN112971884B true CN112971884B (en) | 2022-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110152501.1A Active CN112971884B (en) | 2021-02-04 | 2021-02-04 | Suture anchor implantation device |
| CN202211435531.4A Pending CN115737030A (en) | 2021-02-04 | 2021-02-04 | Suture anchor implantation device |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211435531.4A Pending CN115737030A (en) | 2021-02-04 | 2021-02-04 | Suture anchor implantation device |
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| Country | Link |
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| CN (2) | CN112971884B (en) |
| WO (1) | WO2022166118A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112971884B (en) * | 2021-02-04 | 2022-12-16 | 杭州锐健马斯汀医疗器材有限公司 | Suture anchor implantation device |
| CN115590567A (en) * | 2022-10-22 | 2023-01-13 | 北京德益达美医疗科技有限公司（Cn） | Double suture fixing device for acromioclavicular joint reconstruction |
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| US7270672B1 (en) * | 2005-02-11 | 2007-09-18 | Adam Joel Singer | Rod for transferring and tightening knotted suture into patient's body |
| CN107296635A (en) * | 2016-06-29 | 2017-10-27 | 杭州锐健马斯汀医疗器材有限公司 | It is a kind of into knot medical suture and its into knot method |
| CN107569265A (en) * | 2017-10-18 | 2018-01-12 | 运怡（北京）医疗器械有限公司 | A kind of screw-in band line holdfast |
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| US5411523A (en) * | 1994-04-11 | 1995-05-02 | Mitek Surgical Products, Inc. | Suture anchor and driver combination |
| US6287324B1 (en) * | 2000-01-28 | 2001-09-11 | Shoulderon Ltd. | Self-drilling surgical suture anchor |
| US20080306510A1 (en) * | 2007-06-05 | 2008-12-11 | Stchur Robert P | Fixation suture device and method |
| US8197511B2 (en) * | 2007-09-24 | 2012-06-12 | Miller M Todd | Suture anchor having a suture engaging structure and inserter arrangement |
| US8795334B2 (en) * | 2011-01-28 | 2014-08-05 | Smith & Nephew, Inc. | Tissue repair |
| WO2012112793A1 (en) * | 2011-02-16 | 2012-08-23 | Linvatec Corporation | Method and apparatus for securing an object to bone |
| US20130110163A1 (en) * | 2011-10-28 | 2013-05-02 | Warsaw Orthopedic, Inc. | Attachment mechanism for material and bone |
| CN202515862U (en) * | 2012-01-18 | 2012-11-07 | 袁久民 | Novel puncturing knife with line passing hole at knife point part |
| US9173652B2 (en) * | 2013-03-11 | 2015-11-03 | Linvatec Corporation | All-suture anchor inserter |
| CN204468170U (en) * | 2014-12-26 | 2015-07-15 | 北京大清生物技术有限公司 | Biological bone holdfast |
| KR102349096B1 (en) * | 2017-07-24 | 2022-01-11 | 콘메드 코포레이션 | Self-perforated pre-suture anchor |
| CN112971884B (en) * | 2021-02-04 | 2022-12-16 | 杭州锐健马斯汀医疗器材有限公司 | Suture anchor implantation device |
-
2021
- 2021-02-04 CN CN202110152501.1A patent/CN112971884B/en active Active
- 2021-02-04 CN CN202211435531.4A patent/CN115737030A/en active Pending
- 2021-07-16 WO PCT/CN2021/106640 patent/WO2022166118A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7270672B1 (en) * | 2005-02-11 | 2007-09-18 | Adam Joel Singer | Rod for transferring and tightening knotted suture into patient's body |
| CN107296635A (en) * | 2016-06-29 | 2017-10-27 | 杭州锐健马斯汀医疗器材有限公司 | It is a kind of into knot medical suture and its into knot method |
| CN107569265A (en) * | 2017-10-18 | 2018-01-12 | 运怡（北京）医疗器械有限公司 | A kind of screw-in band line holdfast |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112971884A (en) | 2021-06-18 |
| WO2022166118A1 (en) | 2022-08-11 |
| CN115737030A (en) | 2023-03-07 |
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