CN216777143U - Assembled implantation instrument - Google Patents
Assembled implantation instrument Download PDFInfo
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- CN216777143U CN216777143U CN202023234825.XU CN202023234825U CN216777143U CN 216777143 U CN216777143 U CN 216777143U CN 202023234825 U CN202023234825 U CN 202023234825U CN 216777143 U CN216777143 U CN 216777143U
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Abstract
The utility model relates to an assembled implantation instrument, which comprises a first assembly and a second assembly, wherein the first assembly and the second assembly are in three-dimensional net structures and/or bracket structures; coupling mechanism is equipped with prevents that the dropout structure realizes two kinds of functions through local deformation or displacement: one is used for preventing relative axial or circumferential looseness after the first component and the second component are connected, and the other is used for quickly disassembling the first component and the second component by an auxiliary tool in a connected state. The utility model has wide application range, high safety and strong convenience, and realizes the free disassembly and assembly of parts with various specifications.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to an assembled implantation instrument.
Background
Under the current market product condition, most medical intervention products are the integral type structure, and fixed connection can't realize dismouting and individualized adjustment between each subassembly of product. Taking a left auricle occluder as an example, the structure of the left auricle occluder consists of two major components: the plugging disc and the anchoring frame are fixedly connected, cannot be detached, and the specification and the size of the plugging device are limited. In clinical use, the actual specification of the selected left atrial appendage occluder is determined according to the anatomical morphology of the left atrial appendage of a patient. Because the existing left atrial appendage occluder product specification is limited, and perfect fit between a patient and an apparatus is difficult to achieve, so that the conventional requirements of most patients can be met by the existing structural design, but for some special patients, especially for the special left atrial appendage with deep depth and extremely large size difference between an anchoring area and an opening area, the conventional occluder cannot be used, if the custom-made design is adopted, a manufacturer needs to carry out production and manufacturing again with the actual requirements of the patient, and the time cost is undoubtedly increased.
Patent CN112022246A discloses a left atrial appendage occluder, which includes an anchoring part, a connecting part and a covering part connected in sequence along an axial direction, wherein the anchoring part includes a first supporting net and a first fixing element which can contract in a radial direction, the first fixing element is detachably connected with the connecting part, so that the anchoring part can be separately arranged at the left atrial appendage; the covering part comprises a second supporting net and a second fixing element which can be contracted radially, the second fixing element is arranged at one end, far away from the connecting part, of the second supporting net, and the pushing device connecting positions are respectively arranged at one ends, far away from the first supporting net, of the first fixing element and the second fixing element. This patent is through the concrete structure and the connected relation of anchor portion, connecting portion and covering portion, realizes the nimble use of apparatus, promotes the adaptability of left atrial appendage occluder, still has following shortcoming: 1) the occluder in the patent has two use forms: the anchoring part is used independently or the anchoring part, the connecting part and the covering part are used in a combined mode, the plugging device is suitable for a double-disc type plugging device for the auricle with a flat shallow mouth shape clinically, and the overall height of the plugging device is limited to a certain extent; 2) the combination of anchor portion and cover portion is dismantled only to connecting portion in this patent through threaded connection's mode realization, has certain design drawback: although the assembly of each component can be realized through the rotation of the thread structure, and one embodiment of the patent realizes the mutual locking of the components through the resistance element, the difficulty is brought to the operation of repeated disassembly, for example, after the user finishes the assembly, the specification needs to be temporarily replaced, the repeated disassembly is difficult in the current design, or the disassembly resistance is large, and the operation is inconvenient; 3) In one embodiment of this patent, the connecting portion is provided with a clamping element, one end of which is rotatably installed in the spherical cavity of the connecting portion, so as to realize the angle adjustment between the anchoring portion and the covering portion, and the design drawbacks brought by this rotatable manner mainly include: firstly, the connecting mechanism capable of rotating naturally relates to the mutual movable fit of a plurality of parts, the manufacturing difficulty is high, the rotation angle cannot be accurately controlled, after the plugging device is implanted into a human body, because the anchoring part and the covering part can rotate relatively, a user cannot accurately hold the accurate release position of the plugging device during an operation, and meanwhile, the covering part is very easy to shake, so that certain challenges are brought to the plugging effectiveness of the left auricle; secondly, the movable design has extremely high requirements on the fatigue performance of the occluder, and the movable connecting part can cause the risk of fatigue fracture failure along with the continuous beating of the heart after implantation; 4) in one embodiment of this patent, the connecting part is provided with an elastic element, which allows axial expansion or relative bending between the anchoring part and the covering part, which design has the following disadvantages: the precision of axial stretching or relative bending cannot be controlled, namely the size of the axial stretching cannot be quantitatively controlled, and the stretching and stretching range is limited; 5) the connecting portion structure of this patent is complicated, especially relates to the embodiment that the hollow tube that connecting portion middle part adopted elastic metal tubular product to support, because there is great gap between the linkage unit, these gap departments probably become the source that stress corrosion takes place, influence the long-term corrosion resistance of plugging device.
Patent CN107233117B provides a left atrial appendage occluder, which comprises an occluding disk, a fixed disk and a connecting device, wherein the occluding disk is used for occluding the left atrial appendage; the fixed disk is used for fixing the left auricle occluder on the left auricle and is provided with a barb; connecting device connects shutoff dish with the fixed disk, connecting device include detachable regulation structure, detachable regulation structure include first part and with the second part that first part separates or closes, relative motion can be done to first part and second part, first part with the shutoff dish is connected, the second part with the fixed disk is connected. The depth/length of the left atrial appendage occluder can be adjusted through the relative movement between the first component and the second component, so that the left atrial appendages with different depths can be adapted; the detachable adjusting structure can be selectively connected with fixing discs with different sizes so as to adapt to left auricles with different shapes. This patent, although directed to a removable left atrial appendage occluder, still suffers from the following disadvantages: 1) the fixing discs with different sizes are detachable, and although a detachable structure is designed, an anti-falling device or a structure of the fixing disc after the fixing disc is reassembled is not designed, so that the fixing disc can be detached in the design, and potential safety hazards can be caused in actual use; 2) the height of each component of the left auricle occluder in the patent is adjusted by utilizing the relative movement of a thread structure, the reliability is not provided in the actual operation process, and the components of the occluder can rotate along with the retraction and release sheath and the traction movement of a conveying steel cable to the left auricle occluder in the operation process, so that the height adjustment is invalid, and the hidden trouble of implantation failure is brought; 3) the height adjusting piece and the plugging device are of an integrated structure, and the height adjustable range is limited; 4) in one embodiment of this patent, the length/depth of the left atrial appendage occluder can be adjusted by the insertion depth between the male spline structure and the female spline structure, or between the engaging portion and the buckling portion, but the problem of loosening after insertion is not solved.
Patent CN 210990532U provides a left atrial appendage occluder, including the cover plate, coupling mechanism and packing post, coupling mechanism includes the near-end connecting piece fixed mutually with the cover plate, the far-end connecting piece fixed mutually with packing post, link firmly the intermediate junction piece between near-end connecting piece and far-end connecting piece, and the elastic element that is located the intermediate junction piece, the intermediate junction piece has at least two sections linkage segments along axial joint, and form the annular adjustment groove in two adjacent linkage segment joint departments, the annular adjustment groove makes have between two adjacent linkage segments along the axial gap that forms between two adjacent linkage segments, and form the circumferential gap between two adjacent linkage segments along circumference. The intermediate junction spare has certain bendability and axial scalability, makes the cover plate and fills angle and axial distance between the post all have the adjustability, can make left auricle plugging device adapt to the different left auricle inner chamber of form from this, reduces the emergence of remaining reposition of redundant personnel. Although this patent relates to a telescopic and angle-adjustable left atrial appendage occluder, it still has the following disadvantages: 1) the telescopic range is small, although the telescopic structure is designed to be telescopic, the telescopic length range is too small, and the telescopic structure cannot meet the requirements of special cases in the actual use process; 2) the middle connecting piece structure has a plurality of small parts, the height and the angle can not be directionally adjusted and controlled, and the hidden trouble of implantation failure exists in the operation process.
Patent CN 111419302A provides a left atrial appendage occluder comprising: an anchoring mechanism; the covering mechanism is provided with a through hole; a connector body which passes through a distance-adjustable left atrial appendage occluder through hole to be fixed with a distance-adjustable left atrial appendage occluder anchoring mechanism, and a gap is arranged between the distance-adjustable left atrial appendage occluder connector body and the distance-adjustable left atrial appendage occluder through hole; the elastic gripping part is arranged on at least one of the inner wall of the through hole of the left atrial appendage occluder with adjustable distance and the connecting piece main body of the left atrial appendage occluder with adjustable distance; an operating mechanism; in this patent, the connecting piece main part is connected through elasticity gripping portion with the cover mechanism, and when operating device made elasticity gripping portion take place to warp, the cover mechanism can freely adjust the position, realizes freely adjusting the distance between cover mechanism and the anchor mechanism in the art, and the form that cover mechanism and anchor mechanism can comply with human left atrial appendage demonstrates the contained angle that needs, realizes good shutoff effect. Although this patent relates to a controllable-pitch left atrial appendage occluder, the following disadvantages still exist: 1) due to the design of the distance adjusting mechanism, the influence on the plugging disc of the left atrial appendage plugging device is large, and the hidden danger on the quality of a product exists in the pushing process in the sheath tube; 2) the condition of distance adjustment is harsh, the operation needs to be carried out under the condition that the imaging in the operation is clear, the difficulty is high, and the operation process is complex; 3) the distance-adjustable component structure is only theoretical, the practical feasibility is low, and the practicability cannot be guaranteed.
Patent CN106466196A discloses a split type left atrial appendage plugging device, including anchor device and the sealed dish that the components of a whole that can function independently set up, one of anchor device and sealed dish is equipped with the first connecting piece of tube-shape, and the other is equipped with the second connecting piece that cooperatees in order to realize dismantling the connection with the section of thick bamboo wall of first connecting piece. The first connecting piece and the second connecting piece can adopt a matching mode of a limiting hole and a hook, and can also adopt an interference fit mode simultaneously or independently. The left auricle plugging device of detachable that this patent provided can adjust anchoring device and seal the interval between the dish according to the form of left auricle, makes seal dish ability separation left atrium and left auricle completely. The mode that the hook is matched with the limiting hole is adopted, the first connecting piece is connected with the second connecting piece, the anchoring device with the proper specification is firstly released in vivo, the anchoring device is fixed at the position adjacent to the opening in the left auricle, then the sealing disc with the proper specification is selected to be released, in the releasing process of the sealing disc, the hook extends into the limiting hole, and when the sealing disc has the trend of being separated from the left auricle, the limiting hole is hooked by the hook to prevent separation. Although this patent relates to a controllable-pitch left atrial appendage occluder, the following disadvantages still exist: 1) the connecting piece has the condition of large resistance and even sheath clamping in the process of withdrawing the sheath, so that a conveying sheath pipe with smaller sheath diameter cannot be used; 2) the connecting piece is designed by only depending on the structure that the hook is matched with the limiting hole, so that the force transmission is poor; 3) in the release of the product, the design of the barbs easily causes tangling, and even the anchoring device and the sealing disc easily fall off, so that the product cannot be released, and the design defect exists; 4) the design of the connecting piece can not ensure the precision of height adjustment accurately, and 5) the hook design of the connecting piece is easy to have fracture risk, and the hook is used as a stress part, so that the hook can be fractured in the pushing process of a conveying system and the process of taking and releasing a product sheath, and the implantation failure is caused; after the artificial bone is implanted into a human body, the barbed part is easy to cause fatigue failure due to long-term stress, so that the rupture is caused.
Therefore, the utility model relates to an assembled implantation instrument, which can realize the free combination and repeated assembly and disassembly of parts with various specifications according to the actual requirements of patients, and has better safety, stronger convenience and higher flexibility compared with similar products on the market.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, provides an assembled implantation instrument, realizes the free combination and repeated assembly and disassembly of parts with various specifications, and has better safety, stronger convenience and higher flexibility compared with similar products in the market.
The purpose of the utility model is realized by the following technical scheme:
in a first aspect the present invention provides an assemblable implantation instrument comprising: the device comprises a first assembly and a second assembly, wherein the first assembly and the second assembly are of a three-dimensional net structure and/or a support structure, a first connecting piece is arranged at the far end of the first assembly, a second connecting piece is arranged at the near end of the second assembly, the first connecting piece and the second connecting piece are provided with at least one connecting mechanism which is matched with each other, so that the first assembly and the second assembly are connected, the connecting mechanism is provided with an anti-release structure, and the anti-release structure realizes two functions through local deformation or displacement: one is used for preventing relative axial or circumferential looseness after the first component and the second component are connected, and the other is used for quickly disassembling the first component and the second component by means of an auxiliary tool in a connected state of the first component and the second component.
Preferably, the first component is a net structure with two ends constrained and a drum-shaped middle, the second component comprises a support structure surrounded by a plurality of elastic skeletons diverged outwards from the central part, the support structure is non-net and at most has a layer of wave structure, the elastic skeletons are converged in the area of the central part to form a plurality of U-shaped grooves, and the U-shaped grooves are arranged outside the far end of the central part; wherein the content of the first and second substances,
the first connecting piece is a hollow bolt, the hollow bolt is provided with a through hole, the through hole is used for fixing the first assembly, the second connecting piece is a T-shaped nut provided with a convex nail, the convex nail of the T-shaped nut is inserted into the U-shaped groove, the near end face of the T-shaped nut is positioned in the center piece or is flush with the near end face of the center piece, the T-shaped nut is relatively fixed with the center piece to form a built-in thread, the connecting mechanism is a thread structure formed by matching the hollow bolt and the T-shaped nut, and the first connecting piece is fixedly connected with the second connecting piece; the far-end sectional area of the hollow bolt is smaller than the near-end inner cavity sectional area of the T-shaped nut, so that a guide structure is formed;
or, the first connecting piece is a buckle, a multi-claw structure is arranged at the far end of the buckle, the multi-claw structure has elasticity, a counter bore is arranged at the near end of the buckle, the counter bore is used for fixing the first component, the second connecting piece is a buckle groove, the buckle groove is matched and connected with the multi-claw structure, the far end of the buckle groove is a cylinder provided with a convex nail, the convex nail of the buckle groove is inserted into the U-shaped groove of the center piece, and the connecting mechanism is a buckle fixing structure formed by matching the multi-claw structure and the buckle groove, so that the first connecting piece and the second connecting piece are fixedly connected;
or, the first connecting piece is a convex shaft, a counter bore and a transverse threaded hole are arranged at the near end of the convex shaft, the counter bore is used for fixing the first assembly, the second connecting piece is a concave shaft, a transverse through hole is arranged at the near end of the concave shaft, the transverse through hole and the transverse threaded hole are coaxial, the far end of the concave shaft is a cylinder provided with a convex nail, and the convex nail of the concave shaft is inserted into the U-shaped groove of the central piece; the connecting mechanism is a splicing and inserting structure formed by matching the far end of the convex-shaped shaft and the near end of the concave-shaped shaft, and the splicing and inserting structure forms interference fit or transition fit to realize the fixed connection of the first connecting piece and the second connecting piece;
or, the first connecting piece is a pressure spring shaft, the pressure spring shaft is composed of stepped shafts and springs, the diameters of the near ends of the stepped shafts are larger than the diameters of the far ends of the stepped shafts, transverse hole grooves are formed in the outer surfaces of the far ends of the stepped shafts, the springs are arranged in the transverse hole grooves, one ends of the springs are fixed in the transverse hole grooves, the other ends of the springs are connected with a limiting part, in a natural state, most of the surface of the limiting part is exposed out of the stepped shafts, counter bores are formed in the near ends of the stepped shafts and used for fixing a first component, the second connecting piece is a positioning shaft, the near end of the positioning shaft is a counter bore matched with the stepped shafts, limiting hole grooves are formed in the outer surfaces of the near ends of the positioning shaft, the shapes of the limiting hole grooves correspond to the limiting part, and the limiting parts can be contained in the space sizes of the limiting hole grooves, the far end of the positioning shaft is a cylinder provided with a convex nail, the convex nail of the positioning shaft is inserted into the U-shaped groove of the central piece, and the connecting mechanism is a composite structure formed by matching the limiting part and the limiting hole groove, so that the first connecting piece and the second connecting piece are fixedly connected;
or, the first connecting piece is a stepped column, a counter bore is formed in the near-end face of the stepped column, the counter bore is used for fixing the first assembly, the second connecting piece is a circular column, the circular column is formed by integrally processing the near end of the center piece, the near end of the circular column and the far end of the stepped column are elastic and form a mutually-matched buckling structure, the buckling structure is the connecting mechanism, and the connecting mechanism realizes the fixed connection of the first connecting piece and the second connecting piece.
Preferably, when the first connecting piece is the hollow bolt and the second connecting piece is the T-shaped nut, the anti-release structure is realized in a mechanical clamping manner, at this time, a plurality of non-threaded regions are arranged on the outer surface of the stud of the hollow bolt, and when the hollow bolt and the T-shaped nut are matched with each other, a three-dimensional cavity is formed by a gap between the non-threaded regions and the T-shaped nut, and the auxiliary tool is used for clamping a specific position on the central piece corresponding to the three-dimensional cavity, so that the three-dimensional cavity is indirectly mechanically deformed, and relative axial and circumferential looseness between the first component and the second component can be prevented; meanwhile, the auxiliary tool is used for clamping the non-specified position of the central piece, so that the three-dimensional cavity is restored to the original state, the first connecting piece and the second connecting piece are separated, and the first assembly and the second assembly are fixedly connected and repeatedly disassembled.
Or when the first connecting piece is the buckle and the second connecting piece is the buckle groove, the anti-disengaging structure is a buckle matching structure formed between the elastic multi-claw structure and the buckle groove, and when the first connecting piece is matched with the second connecting piece, the multi-claw structure is embedded into the buckle groove under the action of elasticity to realize fixed connection and prevent relative axial and circumferential looseness between the first assembly and the second assembly; a hollow area is formed between the buckle and the buckle groove, the auxiliary tool is inserted into the hollow area and extrudes the multi-claw structure, so that the multi-claw structure is separated from the buckle groove under the action of external force, the first connecting piece and the second connecting piece are separated, and the first assembly and the second assembly are fixedly connected and repeatedly disassembled.
Or, when the first connecting piece is the convex-shaped shaft and the second connecting piece is the concave-shaped shaft, the anti-release structure is a screw, after the convex-shaped shaft is matched with the concave-shaped shaft, the screw is matched with the transverse threaded hole through threads to realize an anti-release function, relative axial and circumferential looseness between the first assembly and the second assembly is prevented, the screw is released from the transverse threaded hole by using the auxiliary tool, the first connecting piece is separated from the second connecting piece, and the first assembly and the second assembly are fixedly connected and repeatedly disassembled.
Or when the first connecting piece is the pressure spring shaft and the second connecting piece is the positioning shaft, the anti-release structure is a spring matching structure, the limiting part is exposed out of the limiting hole groove in a matching state, so that the first connecting piece and the second connecting piece are fixed in all directions, relative axial and circumferential looseness between the first assembly and the second assembly is prevented, the limiting part is transversely jacked into the transverse hole groove of the first connecting piece by using the auxiliary tool, the first connecting piece and the second connecting piece are separated, and the first assembly and the second assembly are fixedly connected and repeatedly disassembled.
Or, when the first connecting piece is the stepped column and the second connecting piece is the circular column, the anti-disengagement structure is an elastic bulge structure arranged on the buckling structure, the elastic bulge structure plays a role in limiting and disengaging in a natural state, relative axial and circumferential looseness between the first assembly and the second assembly is prevented, the elastic bulge structure can be elastically deformed by the aid of the auxiliary tool, the first connecting piece and the second connecting piece are separated, and the first assembly and the second assembly are fixedly connected and repeatedly disassembled.
Preferably, the device further comprises an intermediate component for increasing the axial spacing between the first component and the second component, the length of the spacing being a multiple of 0.5 mm; the near end and the far end of the middle assembly are respectively provided with a connecting mechanism which is matched with the first connecting piece and the second connecting piece, and the connecting mechanism is provided with the anti-release structure.
Preferably, the intermediate component is one or more intermediate elements fitted around the first connector and/or the second connector, and the axial length of the intermediate element is a multiple of 0.5mm, for increasing the axial distance between the first component and the second component.
Preferably, the implantation instrument has a non-circumferential rotationally symmetrical structure or an eccentric structure, and the intermediate member is an orientation adjusting member for adjusting a relative angle between the first member and the second member in a circumference direction and an axial height between the first member and the second member, the axial height being a single or multiple of a feed depth between the first member and the second member; when the feeding mode is screw feeding, the circumferential rotation angle is defined to be omega, the screw pitch is defined to be P, and the feeding depth is (360-omega)/360-multiplied by P; when the feed is stepped or toothed, the feed depth is a single or multiple of the height of a single step or pitch.
Preferably, each component of the implantation instrument is axially angled, the direction adjustment member is configured to adjust an axial relative angle between the first component and the second component, a plane where a proximal end of the direction adjustment member is located is defined as α 1, a plane where a distal end of the direction adjustment member is located is defined as α 2, an included angle θ between the directions α 1 and α 2 is the bending angle of the direction adjustment member, and the included angle θ satisfies the following mathematical relationship: theta is more than 0 degree and less than 90 degrees.
Preferably, the first connecting piece and the second connecting piece are made of metal or high polymer materials with elasticity or shape memory, and the intermediate component is made of metal or high polymer materials with rigidity or elasticity or shape memory.
Preferably, coupling mechanism is equipped with guide structure, guide structure is for establishing the distal end of first connecting piece with the little magnetite of second connecting piece near-end, it is fixed that little magnetite adopts embedded or coating formula to have opposite sex attracting nature, realize first subassembly with the quick counterpoint of second subassembly, the total volume of little magnetite is no longer than 60mm3And has Magnetic Resonance Imaging (MRI) compatibility.
In a second aspect, the present invention further provides a kit comprising the above-mentioned implantation instrument, said kit comprising a plurality of said first components of different specifications, a plurality of said second components of different specifications, a plurality of said intermediate components of different specifications, and said auxiliary tool, the specifications including diameters of the first and second components, a height of the intermediate component, and a bending angle of the intermediate component, one end of the auxiliary tool is detachably connected with the middle assembly, the first connecting piece and the second connecting piece, according to instructions, the quick matching, the disassembly and the assembly connection between the first assemblies with different specifications and the second assemblies with different specifications, or between the first assemblies with different specifications, the middle assemblies with different specifications and the second assemblies with different specifications are realized.
Compared with the prior art, the utility model has the following outstanding advantages:
1. the utility model provides an assembled implantation instrument which is respectively provided with a connecting mechanism with a first connecting piece and a second connecting piece matched with each other, wherein the connecting mechanism is internally provided with an anti-release structure, and the anti-release structure realizes repeated disassembly of components with different specifications through local deformation or displacement, prevents relative axial or circumferential looseness between the first component and the second component, and has higher safety.
2. The utility model provides an assembled implantation instrument, wherein a U-shaped groove is arranged outside the far end of a central piece, a connecting mechanism is a thread structure formed by matching a hollow bolt and a T-shaped nut, and the assembled implantation instrument has the following advantages: a) the convex nail of the T-shaped nut is inserted into the U-shaped groove, so that the near end face of the T-shaped nut is positioned in the central piece or is flush with the near end face of the central piece to form a built-in thread, and the first connecting piece and the second connecting piece are connected without a gap; b) the hollow bolt with the non-threaded area and the T-shaped nut are matched to form a three-dimensional cavity, so that fixation can be realized through local deformation, the safety of a product is improved, repeated assembly can be realized through auxiliary tools, and the practical flexibility is improved.
3. The connecting mechanism of the assembled implantation instrument provided by the utility model has various different forms, such as a buckle fixing structure, a splicing structure, a composite structure, a buckling structure and the like, does not have a complex matching structure, has excellent fatigue resistance, does not directly expose the internal structure of the connecting mechanism in blood, has no obvious gap on the outer surface of the connecting mechanism, and has strong corrosion resistance, good safety and simple operation.
4. The assembled implantation instrument provided by the utility model is provided with the intermediate components with different specifications, so that an operator can meet different requirements of a patient by matching the intermediate components according to the structural characteristics of a part to be implanted in the patient body, and personalized customization is realized.
5. The connecting mechanism of the assembled implanting instrument is provided with the guide structure, and the parts related to the utility model are all micro precise parts, so that an operator can realize quick alignment of different components during assembly through the guide structure when using the implanting instrument, thereby achieving the aim of quickly assembling the first component and the second component, saving the assembly time and reducing the preparation period of the instrument before the operation.
6. The middle assembly of the assembled implantation instrument provided by the utility model is a direction adjusting piece, can adjust the relative angle on the circumference or the axial relative angle between the first assembly and the second assembly, and is suitable for instruments with non-circumference rotation symmetrical structures or eccentric structures or the situations with requirements on the axial angle of the instrument.
7. The utility model provides an assembled implantation instrument which is a kit, the kit comprises a first component, a second component and multiple specifications of a middle component, and auxiliary tools, according to the actual condition of a patient, an operator can respond on line immediately according to a real-time instruction and select different components to realize the selection, assembly and connection of the components with different specifications, the personalized customization of products is realized, particularly, the product components can be flexibly selected aiming at some pathological change parts with special anatomical structures, so that the optimal product solution is matched, and the operation waiting time of the patient is greatly reduced.
Drawings
FIG. 1 is a schematic view of an assembled implantation instrument of the present invention in which the first and second components are each in a disk-like configuration;
FIG. 2 is a schematic view of an assembled implantation instrument of the present invention, wherein the first component is a mesh structure and the second component is a stent structure;
FIG. 3 is a schematic view of an assembled insertion instrument of the present invention having a coupling mechanism and an anti-release mechanism;
FIG. 4 is a schematic view of an assembled implantation instrument of the present invention having an intermediate assembly;
FIG. 5 is a schematic view of an embodiment of the assembled implantation device of the present invention, wherein the first connecting member is a hollow bolt;
FIG. 6 is a schematic view of a second connector of the assembled implantation device according to the first embodiment of the present invention;
FIG. 7 is a three-dimensional view of a hollow bolt and a T-nut in accordance with an embodiment of the assemblable implant device of the present invention;
FIG. 8 is a schematic view of a hollow bolt with a non-threaded region according to an embodiment of the assemblable implant device of the present invention;
FIG. 9a is a top view of a hollow bolt and T-nut in combination according to an embodiment of the present invention showing a schematic view of the three-dimensional cavity formed by the space between the non-threaded region and the T-nut;
FIG. 9b is a top view of a hollow bolt and T-nut in combination, illustrating a release-preventing structure as a resilient spacer, in accordance with an embodiment of the assemblable implant device of the present invention;
FIG. 10 is a three-dimensional view of a second embodiment of the assemblable implant device of the present invention in which the first connector is a snap fit;
FIG. 11 is a partial cross-sectional view of FIG. 10;
FIG. 12 is a three-dimensional view of a second fastener, shown as a snap-fit groove, of a second embodiment of the assembled implantation device of the present invention;
FIG. 13 is a partial cross-sectional view of FIG. 12;
FIG. 14 is a three-dimensional view of a second embodiment of an assembled implantation instrument according to the present invention, after engagement of a snap fit with a snap fit groove;
FIG. 15a is a partial cross-sectional view of a second embodiment of an implantable device in accordance with the present invention, shown in the assembled configuration, showing a snap fit in engagement with a snap groove;
FIG. 15b is a schematic view of the buckle of FIG. 15a with the multi-jaw structure deformed by an external force;
FIG. 15c is a schematic view of the snap and snap groove separation of the multi-jaw structure of FIG. 15b after deformation;
FIG. 16 is a three-dimensional view of a third embodiment of the assemblable implant device of the present invention, with the first coupling member being a male shaft;
FIG. 17 is a partial cross-sectional view of FIG. 16;
FIG. 18 is a three-dimensional view of a female shaft as a second coupling member of a third embodiment of the assembled implant device of the present invention;
FIG. 19 is a partial cross-sectional view of FIG. 18;
FIG. 20 is a three-dimensional view of a third embodiment of an assembled implantation instrument according to the present invention, showing the male shaft, the female shaft, and the screw engaged;
FIG. 21 is a partial cross-sectional view of FIG. 20;
FIG. 22 is a three-dimensional view of a fourth embodiment of the assemblable implant device of the present invention, with the first coupling member being a compression spring shaft;
FIG. 23 is a partial cross-sectional view of FIG. 22;
FIG. 24 is a three-dimensional view of a positioning shaft as a second coupling member in accordance with a fourth embodiment of the assembled insertion instrument of the present invention;
FIG. 25 is a partial cross-sectional view of FIG. 24;
FIG. 26 is a three-dimensional view of a compression spring shaft and a positioning shaft of an embodiment of the assemblable implant device of the present invention after engagement;
FIG. 27 is a partial cross-sectional view of a compression spring shaft and a positioning shaft of a fourth embodiment of the assemblable implant device of the present invention shown in fixed connection;
FIG. 28 is a schematic view of the pressure spring shaft and the positioning shaft of FIG. 27 shown in a disengaged position under the application of an external force;
FIG. 29 is a schematic view of a fifth embodiment of a snap-fit mechanism of the assembled implant device of the present invention;
FIGS. 30a and 30b are a cross-sectional view and a three-dimensional view, respectively, of a rail post according to an embodiment of the present invention;
FIG. 31a is a schematic view of a fifth embodiment of a guide channel ring of the assemblable implant device of the present invention;
FIG. 31b is a schematic view of a fifth embodiment of an assembled implantation instrument according to the present invention, showing a guide post engaged with a guide groove ring;
FIGS. 32a and 32b are a cross-sectional view and a three-dimensional view, respectively, of a spring post in accordance with an embodiment of the assemblable implant device of the present invention;
FIG. 33a is a schematic view of an example of a fifth embodiment of an assembled implanter apparatus of the present invention;
FIG. 33b is a schematic view of a fifth embodiment of an assembled implantation instrument according to the present invention, wherein the resilient posts are engaged with the notch ring;
FIGS. 34a and 34b are a cross-sectional view and a three-dimensional view, respectively, of a tenth embodiment of an assemblable implant device of the present invention, where the first coupling member has a micro-magnet;
FIG. 35a is a cross-sectional view of a second coupling member with a micro-magnet of an example of an assemblable implant device of the present invention;
FIG. 35b is a cross-sectional view of the assembled implantation instrument of the present invention with the micro magnet disposed in the first and second coupling members;
FIG. 36a is a schematic view of an intermediate element of a seventh embodiment of an assemblable implant device of the present invention;
FIG. 36b is a schematic view of a seventh embodiment of the assemblable implant device of the present invention with intermediate elements nested between the first and second coupling members;
FIG. 37 is a schematic view of an implantable device incorporating an orientation adjustment member according to an eighth embodiment of the assembled implantable device of the present invention;
FIGS. 38a and 38b are schematic views of another insertion instrument with an orientation adjustment member according to an embodiment of the present invention;
FIG. 39 is a partially hollow tubular direction adjustment member according to a ninth embodiment of the assembled insertion instrument of the present invention;
wherein, 1 is an implantation instrument, 2 is an auxiliary tool, 10 is a first component, 11 is a second component, 12 is a first connecting piece, 13 is a second connecting piece, 14 is an intermediate component, 100 is a connecting mechanism, 120 is a hollow bolt, 121 is a buckle, 122 is a convex shaft, 123 is a pressure spring shaft, 124 is a stepped column, 130 is a T-shaped nut, 131 is a buckle groove, 132 is a concave shaft, 133 is a positioning shaft, 134 is a circular ring column, 140 is a direction adjusting member, 150 is an intermediate element, 200 is an anti-release structure, 1101 is a central member, 1102 is a U-shaped groove, 1201 is a through hole, 1210 is a multi-claw structure, 1211 is a counter bore, 1220 is a transverse threaded hole, 1231 is a stepped shaft, 1232 is a spring, 1241 is a guide rail column, 1242 is a spring sheet column, 1301 is a nail, 1310 is a cylinder, 1302 is a hollowed-out area, is a transverse through hole, 1331 is a limit hole groove, 1341 is a guide groove ring, 1342 is a groove ring, 1001 is the helicitic texture, 1002 is buckle fixed knot constructs, 1003 is the mosaic structure, 1004 is composite construction, 1005 is guide structure, 1006 is the lock structure, 2001 is three-dimensional cavity, 2002 is buckle cooperation structure, 2003 is the screw structure, 2004 is the spring cooperation structure, 2006 is the elastic bulge structure, 10011 is the non-thread district, 10012 is the elastic pad, 10051 is the micromagnetite, 12311 is the horizontal hole groove, 12321 is stop part, 10061 is the slide rail structure, 10062 is the shell fragment structure, 12411 is the guide rail, 12421 is the shell fragment, 13411 is the guide slot, 13421 is the notch.
Detailed Description
The technical solution proposed by the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is provided solely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. In particular, different proportions are often used, depending on what is highlighted in the figures.
To more clearly describe the present invention as it provides an assembled implantable device, the terms "distal" and "proximal" are defined herein, which terms are conventional in the field of interventional medical devices. In particular, "proximal" refers to the end that is closer to the operator during the procedure, particularly when the implant device is crimped loaded into the delivery system, and "distal" refers to the end that is further from the operator during the procedure, particularly when the implant device is crimped loaded into the delivery system.
The utility model provides an assembled implantation instrument 1, which comprises a first component 10 and a second component 11, wherein the first component 10 and the second component 11 are three-dimensional net structures and/or bracket structures, as shown in fig. 1 and 2, respectively, a first connecting piece 12 is arranged at the far end of the first component 10, a second connecting piece 13 is arranged at the near end of the second component 11, the first connecting piece 12 and the second connecting piece 13 are provided with at least one connecting mechanism 100 which is matched with each other, so that the first component 10 and the second component 11 are connected, the connecting mechanism 100 is provided with an anti-release structure 2005, and the anti-release structure 200 can realize two functions through local deformation or displacement: one is for preventing relative axial or circumferential looseness after the first and second components 10 and 11 are connected, and the other is for rapidly detaching the first and second components 10 and 11 by means of the auxiliary tool 2 in a connected state of the two components.
The purpose of the utility model can be further realized by the following technical scheme:
in one embodiment, the utility model provides an optionally assembled implantation device 1, which comprises an artery/vein filter, an atrial septum/ventricular septal defect/patent foramen ovale occluder, a left atrial appendage occluder and the like, and the following embodiments mainly take the left atrial appendage occluder as an example.
In one embodiment, the present invention provides an assembled implantation device 1, comprising a first component 10 and a second component 11, wherein the first component 10 is a net structure with two ends constrained and a drum shape in the middle, the second component 11 comprises a support structure surrounded by a plurality of elastic skeletons diverging outwards from a central part 1101, the support structure is non-net and has at most one layer of wave structure, the elastic skeletons are converged to form a plurality of U-shaped grooves 1102 in the area of the central part 1101, and the U-shaped grooves 1102 are outside the distal end of the central part 1101, as shown in fig. 2-4.
Specifically, in the first embodiment, the first connecting member 12 is a hollow bolt 120, and the hollow bolt 120 is provided with a through hole 1201, as shown in fig. 5, the through hole 1201 is used for fixing the first component 10; the second connecting member 13 is a T-shaped nut 130 provided with a stud 1301, as shown in fig. 6, the stud 1301 of the T-shaped nut 130 can be inserted into the U-shaped groove 1102, so that the proximal end face of the T-shaped nut 130 is located in the center 1101 or flush with the proximal end face of the center 1101, the T-shaped nut 130 and the center 1101 are relatively fixed to form an internal thread, the connecting mechanism 100 is a threaded structure 1001 formed by matching the hollow bolt 120 and the T-shaped nut 130, as shown in fig. 5 and 6, and the first connecting member 12 and the second connecting member 13 are fixedly connected, as shown in fig. 7. The advantage of this design is that the first connecting part 12 and the second connecting part 13 can be engaged by screw threads, and the operation is simple.
In the present embodiment, it is further preferable that the anti-release structure 200 of the first connecting member 12 and the second connecting member 13 is implemented by mechanical clamping, in which a plurality of non-threaded areas 10011 are provided on the outer surface of the stud of the hollow bolt 120, as shown in fig. 8, when the hollow bolt 120 and the T-shaped nut 130 are engaged with each other, a three-dimensional cavity 2001 is formed by the gap between the non-threaded areas 10011 and the T-shaped nut 130, and the auxiliary tool 2 is used to clamp a specific position on the central member 1101 corresponding to the three-dimensional cavity 2001, so as to indirectly mechanically deform the three-dimensional cavity 2001, thereby preventing relative axial and circumferential loosening between the first component 10 and the second component 11, as shown in fig. 9 a; meanwhile, the auxiliary tool 2 is used for clamping the non-specified position of the central part 1101, so that the three-dimensional cavity 2001 is restored to the original state, the first connecting piece 12 is separated from the second connecting piece 13, and the first assembly 10 and the second assembly 11 are fixedly connected and repeatedly disassembled.
Further, the anti-release structure 200 is realized by the cooperation of the elastic gasket 10012 and the three-dimensional cavity 2001, the elastic gasket 10012 is located inside the three-dimensional cavity 2001 of the hollow bolt 120, as shown in fig. 9b, when the hollow bolt 120 and the T-shaped nut 130 are engaged, the elastic gasket 10012 is pressed to slightly deform and form a reverse acting force to limit the relative movement of the hollow bolt 120 and the T-shaped nut 130, so as to form the anti-release effect.
Further, the first connecting member 12 and the second connecting member 13 are made of a metal or polymer material having elasticity or shape memory.
In the second embodiment, the first connecting element 12 is a buckle 121, a distal end of the buckle 121 is provided with a multi-jaw structure 1210, the multi-jaw structure 1210 has elasticity, a proximal end of the buckle 121 is provided with a counter bore 1211, and the counter bore 1211 is used for fixing the first component 10, as shown in fig. 10 and 11; the second connecting member 13 is a fastening groove 131, the fastening groove 131 is in fit connection with the multi-jaw structure 1210, the distal end of the fastening groove 131 is a cylinder 1310 provided with a stud 1301, as shown in fig. 12 and 13, the stud 1301 of the fastening groove 131 can be inserted into a U-shaped groove of the center member 1101, at this time, the connecting mechanism 100 is a fastening fixing structure formed by the fastening 121 and the fastening groove 131 in fit, and the first connecting member 12 and the second connecting member 13 are fixedly connected as shown in fig. 14.
In this embodiment, it is further preferable that the disengagement preventing structure 200 of the first connecting member 12 and the second connecting member 13 is a snap-fit structure 2002 formed between the elastic multi-pawl structure 1210 and the snap-fit groove 131, when the first connecting member 12 is mated with the second connecting member 13, the multi-pawl structure 1210 is embedded into the snap-fit groove 131 under the action of elasticity to achieve fixed connection, so as to prevent relative axial or circumferential looseness between the first component 10 and the second component 11, a hollow area 1302 is formed between the snap 121 and the snap-fit groove 131, the auxiliary tool 2 is inserted into the hollow area 1302 and presses the multi-pawl structure 1210, so that the multi-pawl structure 1210 is disengaged from the snap-fit groove 131 under the action of external force, so as to achieve separation between the first connecting member 12 and the second connecting member 13, and achieve fixed connection and repeated detachment of the first component 10 and the second component 11, as shown in fig. 15a to 15 c. The advantage of this kind of design lies in, and buckle structure's design is simple, easy assembly, and is not hard up when passing through the lock, and the security is high. In a preferred embodiment, the number of resilient multi-prong structure 1210 is between 2 and 4.
In the third embodiment, the first connector 12 is a shaft 122, the proximal end of the shaft 122 is provided with a counterbore 1211 and a transverse threaded hole 1220, the counterbore 1211 is used for fixing the first component 10, as shown in fig. 16 and 17, the second connector 13 is a shaft 132, as shown in fig. 18 and 19, the proximal end of the shaft 132 is provided with a transverse through hole 1320, the transverse through hole 1320 and the transverse threaded hole 1220 are coaxial, the distal end of the shaft 132 is a cylinder 1310 provided with a male pin 1301, the male pin 1301 of the shaft 132 can be inserted into the U-shaped groove of the central member 1101, and the connection mechanism 100 is a split structure 1003 formed by matching the distal end of the shaft 122 and the proximal end of the shaft 132, and the split structure 1003 forms an interference fit or transition fit to realize the fixed connection of the first connector 12 and the second connector 13, as shown in fig. 20 and 21.
In the present embodiment, it is further preferable that the anti-release structure 200 of the first connecting member 12 and the second connecting member 13 is a screw 2003, when the shaft 122 and the shaft 132 are engaged, the screw 2003 is screw-engaged with the transverse screw hole 1220 to achieve an anti-release function, so as to prevent relative axial and circumferential looseness between the first component 10 and the second component 11, and the screw 2003 is released from the transverse screw hole 1220 by the auxiliary tool 2, so as to achieve separation of the first connecting member 12 from the second connecting member 13, so as to achieve fixed connection and repeated detachment of the first component 10 and the second component 11, as shown in fig. 20 and 21. The advantage of this design is that the connection mechanism 100 of the splicing structure 1003 is simple to operate, has high fitting degree, is prevented from being released by the screw 2003, and has high reliability. In a preferred embodiment, the inserting structure 1003 has one or more of a cylinder, a square, and a polygon.
In the fourth embodiment, the first connecting member 12 is a pressure spring shaft 123, the pressure spring shaft 123 is composed of a stepped shaft 1231 and a spring 1232 with different diameters, the diameter of the proximal end of the stepped shaft 1231 is larger than that of the distal end, the outer surface of the distal end of the stepped shaft 1231 is provided with a transverse hole 12311, the spring 1232 is arranged in the transverse hole 12311, one end of the spring 1232 is fixed in the transverse hole 12311, the other end of the spring 1232 is connected with a limiting member 12321, as shown in fig. 22 and 23, in a natural state, most of the surface of the limiting member 12321 is exposed out of the stepped shaft 1231, the proximal end of the stepped shaft 1231 is provided with a counter bore 1211, the second connecting member 13 is the positioning shaft 133, the proximal end of the positioning shaft 133 is a counter bore 1211 capable of being matched with the stepped shaft 1231, the outer surface of the proximal end of the positioning shaft 133 is provided with a limiting hole 1331, the shape of the limiting hole 1331 corresponds to the limiting member 21, and the space size of the limiting hole 1331 can accommodate the limiting component 12321, and the distal end of the positioning shaft 133 is a cylinder 1310 provided with a convex pin 1301, as shown in fig. 24 and 25, the convex pin 1301 of the positioning shaft 133 can be inserted into the U-shaped groove of the center piece 1101, at this time, the connecting mechanism 100 is a composite structure 1004 formed by matching the limiting component 12321 and the limiting hole 1331, so as to realize the fixed connection of the first connecting piece 12 and the second connecting piece 13, as shown in fig. 26 and 27.
In the present embodiment, it is further preferable that the disengagement prevention structures 200 of the first and second connectors 12 and 13 are spring fitting structures 2004, in the matching state, the limiting part 12321 is exposed out of the limiting hole 1331, so that the first connecting piece 12 and the second connecting piece 13 are fixed in all directions, relative axial or circumferential looseness between the first assembly 10 and the second assembly 11 is prevented, as shown in fig. 26 and 27, the auxiliary tool 2 is used to push the position-limiting component 12321 into the transverse slot 12311 of the first connecting member 12 transversely, so as to separate the first connecting member 12 from the second connecting member 13, and to fixedly connect and repeatedly detach the first assembly 10 and the second assembly 11, as shown in fig. 28, the design has the advantages that the composite mechanism is compact and simple in structure, does not loosen when matched through the pressure spring shaft 123, is high in safety and is convenient to disassemble and replace. In a preferred embodiment, the shape of the restricting member 12321 is spherical, ellipsoidal, or square or irregular, preferably spherical, as shown in fig. 22 and 23.
In the fifth embodiment, the first connecting element 12 is a stepped column 124, a counter bore 1211 is disposed on a proximal end surface of the stepped column 124, the counter bore 1211 is used for fixing the first component 10, the second connecting element 13 is a circular column 134, the circular column 134 is a proximal end of the center 1101 and is integrally machined, the proximal end of the circular column 134 and a distal end of the stepped column 124 have elasticity and form a mutually-matched buckling structure 1006, the buckling structure 1006 is the connecting mechanism 100, and the connecting mechanism 100 realizes fixed connection of the first connecting element 12 and the second connecting element 13, as shown in fig. 29.
In this embodiment, it is further preferable that the anti-disengaging structure 200 of the first connecting piece 12 and the second connecting piece 13 is an elastic protruding structure 2006 disposed on the fastening structure 1006, the elastic protruding structure 2006 plays a role of limiting and preventing disengagement in a natural state, so as to prevent relative axial and circumferential looseness between the first assembly 10 and the second assembly 11, the elastic protruding structure 2006 can be elastically deformed by the auxiliary tool 2, so as to separate the first connecting piece 12 from the second connecting piece 13, and the first assembly 10 and the second assembly 11 can be fixedly connected and repeatedly detached.
In one embodiment, the implantation instrument 1 further comprises an intermediate member 14, as shown in fig. 4, the intermediate member 14 is configured to increase an axial distance between the first member 10 and the second member 11, the axial distance is a multiple of 0.5mm in length, proximal and distal ends of the intermediate member 14 are respectively provided with a connection mechanism 100 for cooperating with the first connection member 12 and the second connection member 13, and the connection mechanism 100 is provided with an anti-release structure 200.
Preferably, the intermediate assembly 14 has different height specifications, and realizes effective height adjustment between the first assembly 10 and the second assembly 11, wherein the effective height adjustment range is 0.5-10 mm. The advantage of this design is that the operator can select the intermediate components 14 of different specifications according to the characteristics of the patient, so as to realize the individual selection of multiple specifications of the space between different components of the product.
In one embodiment, the intermediate assembly 14 is one or more intermediate members 150 that fit over the first connector 12 and/or the second connector 13, the intermediate members 150 having an axial length that is a multiple of 0.5mm for increasing the axial spacing between the first assembly 10 and the second assembly 11, as shown in fig. 36a and 36 b.
In one embodiment, the insertion instrument 1 has a non-circumferential rotationally symmetric configuration or an eccentric configuration and the intermediate member 14 is a directional adjustment member 140 to adjust the relative angle between the first and second members 10, 11 in the circumferential direction and the axial height between the first and second members 10, 11, as shown in fig. 37. The axial height is the feed depth between the first assembly 10 and the second assembly 11, which is one or more times, when the feed mode is screw feed, the circumferential rotation angle is defined as omega, the screw pitch is defined as P, the feed depth formula is (360-omega)/360 DEG x P, and when the feed mode is step type or tooth type or other types, the feed depth is one or more times of the height of a single step or tooth pitch or the height of the type thereof. The advantage of this design is that patient needs are met, enabling individualized selection of angles between different components of the product.
In one embodiment, the components of the implantation instrument 1 are axially angled, and the direction adjustment member 140 is used to adjust the axial relative angle between the first component 10 and the second component 11, defining the plane on which the proximal end of the direction adjustment member 140 is located as α 1, the plane on which the distal end of the direction adjustment member 140 is located as α 2, the included angle θ between the directions α 1 and α 2 is the bending angle of the direction adjustment member 140, and the included angle θ satisfies the following mathematical relationship: theta is more than 0 degree and less than 90 degrees; further, the included angle θ satisfies the following mathematical relationship: theta is 10 DEG-45 DEG as shown in FIGS. 38a and 38 b.
In a preferred embodiment, the direction adjustment member 140 has a partially hollow tubular shape, as shown in fig. 39.
In one embodiment, the first and second connectors 12, 13 are made of a metal or polymer material having elasticity or shape memory, and the intermediate member 14 is made of a metal or polymer material having rigidity or elasticity or shape memory.
In one embodiment, the connecting mechanism 100 is provided with a guiding structure 1005, the guiding structure 1005 is a micro-magnet 10051 disposed at the distal end of the first connecting member 12 and the proximal end of the second connecting member 13, the micro-magnet 10051 is fixed in an embedded or coated manner and has opposite attraction, fast alignment of the first component 10 and the second component 11 is realized, and the total volume of the micro-magnet 10051 is not more than 60mm3And Magnetic Resonance Imaging (MRI) compatibility, as shown in fig. 34a to 35 b.
In one embodiment, a kit is provided, which includes the above-mentioned assembled implanting apparatus 1, the kit includes a plurality of first components 10 with different specifications, a plurality of second components 11 with different specifications, a plurality of intermediate components 14 with different specifications, and an auxiliary tool 2, the specifications include diameters of the first components 10 and the second components 11, heights of the intermediate components 14, and bending angles of the intermediate components 14, one end of the auxiliary tool 2 is detachably connected with the intermediate components 14, the first connecting piece 12, and the second connecting piece 13, and according to instructions, matching and assembling connection between the first components 10 with different specifications and the second components 11 with different specifications, or quick matching, disassembling, and assembling connection between the first components 10 with different specifications, the intermediate components 14 with different specifications, and the second components 11 with different specifications are realized. The design has the advantages that the product personalized customization based on each component as a standard component is realized, particularly for some lesion parts with special anatomical structures, the product components can be flexibly selected to match with an optimal product solution, the long waiting time for a patient to directly order and customize the product from a manufacturer to obtain the optimal product, particularly various processing time, sterilization time and transportation time required by the manufacturer to produce and manufacture the product, is greatly reduced, and sufficient guarantee is provided for the patient to use the optimal product at the first time.
The utility model will be described in further detail below with reference to the drawings and a number of specific embodiments.
The first embodiment is as follows:
the present embodiment provides an assembled implantation instrument 1, comprising a first component 10 and a second component 11, wherein the first component 10 and the second component 11 are three-dimensional net-shaped structures and/or bracket structures, as shown in fig. 1 and 2, a distal end of the first component 10 is provided with a first connecting member 12, a proximal end of the second component 11 is provided with a second connecting member 13, the first connecting member 12 and the second connecting member 13 are provided with at least one mutually cooperating connecting mechanism 100, the connecting mechanism 100 is provided with a disengagement-prevention structure 200, and the disengagement-prevention structure 200 realizes two functions through local deformation or displacement: one is for preventing relative axial or circumferential looseness after the first and second components 10 and 11 are connected, and the other is for rapidly detaching the first and second components 10 and 11 by means of the auxiliary tool 2 in a connected state of the two components.
In this embodiment, as shown in fig. 2, an assembled implantation device 1 is disclosed, which comprises a first component 10 and a second component 11, wherein the first component 10 is a net structure with two ends constrained and a drum shape in the middle, the second component 11 comprises a support structure surrounded by a plurality of elastic skeletons diverging outwards from a central part 1101, the support structure is non-net and has at most one layer of wave structure, the elastic skeletons converge in the area of the central part 1101 to form a plurality of U-shaped grooves 1102, and the U-shaped grooves 1102 are outside the far end of the central part 1101, as shown in fig. 4; the first connecting member 12 is a hollow bolt 120, the hollow bolt 120 is provided with a through hole 1201, as shown in fig. 5, the through hole 1201 is used for fixing the first component 10, the second connecting member 13 is a T-shaped nut 130 provided with a protruding nail 1301, as shown in fig. 6, the protruding nail 1301 of the T-shaped nut 130 can be inserted into the U-shaped groove 1102, so that the proximal end face of the T-shaped nut 130 is located in the center 1101 or flush with the proximal end face of the center 1101, the T-shaped nut 130 is relatively fixed with the center 1101 in a mechanical fit, deformation extrusion, gluing, buckling, elastic sheet and other manners to form an internal thread, at this time, the connecting mechanism 100 is a thread structure 1001 formed by the hollow bolt 120 and the T-shaped nut 130 in a fit manner, as shown in fig. 5 and 6, and fixed connection of the first connecting member 12 and the second connecting member 13 is achieved, as shown in fig. 7.
In this embodiment, the anti-release structure 200 of the first connecting member 12 and the second connecting member 13 is implemented by mechanical clamping, and at this time, a plurality of non-threaded regions 10011 are provided on the outer surface of the stud of the hollow bolt 120, as shown in fig. 8, when the hollow bolt 120 and the T-shaped nut 130 are mutually engaged, a three-dimensional cavity 2001 is formed by a gap between the non-threaded regions 10011 and the T-shaped nut 130, and the specific position on the central member 1101 corresponding to the three-dimensional cavity 2001 is clamped by the auxiliary tool 2, so that the three-dimensional cavity 2001 is indirectly mechanically deformed, and relative axial and circumferential looseness between the first assembly 10 and the second assembly 11 can be prevented, as shown in fig. 9 a; meanwhile, the auxiliary tool 2 is used for clamping the non-specified position of the central part 1101, so that the three-dimensional cavity 2001 is restored to the original state, the first connecting piece 12 is separated from the second connecting piece 13, and the first assembly 10 and the second assembly 11 are fixedly connected and repeatedly disassembled.
In this embodiment, the anti-release structure 200 is implemented by the cooperation of the elastic gasket 10012 and the three-dimensional cavity 2001, the elastic gasket 10012 is located inside the three-dimensional cavity 2001 of the hollow bolt 120, as shown in fig. 9b, when the hollow bolt 120 and the T-shaped nut 130 are engaged, the elastic gasket 10012 is squeezed to slightly deform and form a reverse acting force to limit the relative movement of the hollow bolt 120 and the T-shaped nut 130, so as to form the anti-release effect.
In this embodiment, the first connecting member 12 and the second connecting member 13 are made of metal or polymer material with elasticity or shape memory.
Example two:
the present embodiment is based on the first embodiment, and the differences are as follows: the first connecting member 12, the second connecting member 13, the connecting mechanism 100 and the anti-release structure 200 in the second embodiment are different from those in the first embodiment.
In the assembled implantation apparatus 1 provided by the present embodiment, the first connection element 12 is a buckle 121, the distal end of the buckle 121 is provided with a multi-jaw structure 1210, the multi-jaw structure 1210 has elasticity, the proximal end of the buckle 121 is provided with a counterbore 1211, the counterbore 1211 is used for fixing the first component 10, as shown in fig. 10 and 11, the second connection element 13 is a buckle slot 131, the buckle slot 131 is in matching link with the multi-jaw structure 1210, the distal end of the buckle slot 131 is a cylinder 1310 provided with a convex nail 1301, as shown in fig. 12 and 13, the convex nail 1301 of the buckle slot 131 can be inserted into a U-shaped slot of the center element 1101, at this time, the connection mechanism 100 is a buckle fixing structure formed by matching the buckle 121 and the buckle slot 131, so as to realize the fixed connection of the first connection element 12 and the second connection element 13, as shown in fig. 14.
In this embodiment, the anti-release structure 200 of the first connecting part 12 and the second connecting part 13 is a snap-fit structure 2002 formed between the elastic multi-pawl structure 1210 and the snap-fit groove 131, when the first connecting part 12 is mated with the second connecting part 13, the multi-pawl structure 1210 is embedded into the snap-fit groove 131 under the elastic action to realize fixed connection, so as to prevent relative axial or circumferential looseness between the first component 10 and the second component 11, a hollow-out area 1302 is formed between the snap-fit 121 and the snap-fit groove 131, and the auxiliary tool 2 is inserted into the hollow-out area 1302 and presses the multi-pawl structure 1210 to separate the multi-pawl structure 1210 from the snap-fit groove 131 under the external force, so as to realize separation of the first connecting part 12 from the second connecting part 13, and realize fixed connection and repeated detachment of the first component 10 and the second component 11, as shown in fig. 15a to 15 c. The advantage of this kind of design lies in, and buckle structure's design is simple, easy assembly, and is not hard up when passing through the lock, and the security is high.
In this embodiment, the number of the resilient multi-prong structure 1210 is 4.
Example three:
the present embodiment is based on the first embodiment, and the difference is that: the first connecting member 12, the second connecting member 13, the connecting mechanism 100 and the anti-release structure 200 in the third embodiment are different from those in the first embodiment.
In the present embodiment, the implantable device 1 can be assembled, the first connecting member 12 is a convex shaft 122, the proximal end of the convex shaft 122 is provided with a counterbore 1211 and a transverse threaded hole 1220, the counterbore 1211 is used for fixing the first component 10, as shown in fig. 16 and 17, the second connecting member 13 is a concave shaft 132, as shown in fig. 18 and 19, the proximal end of the concave shaft 132 is provided with a transverse through hole 1320, the transverse through hole 1320 and the transverse threaded hole 1220 are coaxial, the distal end of the concave shaft 132 is a cylinder 1310 provided with a convex pin 1301, the convex pin 1301 of the concave shaft 132 can be inserted into the U-shaped groove of the central member 1101, at this time, the connecting mechanism 100 is a split structure 1003 formed by matching the distal end of the convex shaft 122 and the proximal end of the concave shaft 132, the split structure 1003 forms an interference fit or a transition fit, so as to realize the fixed connection of the first connecting member 12 and the second connecting member 13, as shown in fig. 20 and 21.
In this embodiment, the anti-release structure 200 of the first connecting member 12 and the second connecting member 13 is a screw 2003, when the shaft 122 is engaged with the shaft 132, the screw 2003 is engaged with the transverse threaded hole 1220 by threads to achieve an anti-release function, so as to prevent relative axial and circumferential looseness between the first component 10 and the second component 11, the screw 2003 is disengaged from the transverse threaded hole 1220 by using the auxiliary tool 2, so as to achieve separation of the first connecting member 12 from the second connecting member 13, and to achieve fixed connection and repeated detachment of the first component 10 and the second connecting component 11, as shown in fig. 20 and 21.
Example four:
the present embodiment is based on the first embodiment, and the difference is that: the first connecting member 12, the second connecting member 13, the connecting mechanism 100 and the anti-release structure 200 in the fourth embodiment are different from those in the first embodiment.
In the present embodiment, an assembled implantation device 1 is provided, in which the first connector 12 is a pressure spring shaft 123, the pressure spring shaft 123 is composed of a stepped shaft 1231 and a spring 1232 with different diameters, the diameter of the proximal end of the stepped shaft 1231 is greater than that of the distal end, the outer surface of the distal end of the stepped shaft 1231 is provided with a transverse hole 12311, the transverse hole 12311 is provided with the spring 1232 therein, one end of the spring 1232 is fixed inside the transverse hole 12311, the other end of the spring 1232 is connected to a position limiting member 12321, as shown in fig. 22 and 23, in a natural state, most of the surface of the position limiting member 12321 is exposed out of the stepped shaft 1231, the proximal end of the stepped shaft 1231 is provided with a counter bore 1211, the counter bore 1211 is used for fixing the first component 10, the second connector 13 is a positioning shaft 133, the proximal end of the positioning shaft 133 is a counter bore 1211 capable of being matched with the stepped shaft 1231, the outer surface of the proximal end of the positioning shaft 133 is provided with a position limiting hole 1331, and the shape of the limiting hole 1331 corresponds to the position limiting member 12321, and the space size of the limiting hole 1331 can accommodate the limiting component 12321, and the distal end of the positioning shaft 133 is a cylinder 1310 provided with a convex pin 1301, as shown in fig. 24 and 25, the convex pin 1301 of the positioning shaft 133 can be inserted into the U-shaped groove of the center piece 1101, at this time, the connecting mechanism 100 is a composite structure 1004 formed by matching the limiting component 12321 and the limiting hole 1331, so as to realize the fixed connection of the first connecting piece 12 and the second connecting piece 13, as shown in fig. 26 and 27.
In this embodiment, the first and second connecting members 13 anti-release structure 200 is a spring fitting structure 2004, and in the fitting state, the limiting member 12321 is exposed out of the limiting hole 1331, so that the first and second connecting members 12 and 13 are fixed in each direction, and the first and second assemblies 10 and 11 are prevented from loosening axially or circumferentially relative to each other, as shown in fig. 26 and 27, at this time, the limiting member 12321 is pushed into the transverse hole 12311 of the first connecting member 12 transversely by the auxiliary tool 2, so that the first and second connecting members 12 and 13 are separated, and the first and second assemblies 10 and 11 are fixedly connected and repeatedly detached, as shown in fig. 28.
In this embodiment, the limiting member 12321 has a spherical shape.
Example five:
the present embodiment is based on the first embodiment, and the differences are as follows: the first connecting member 12, the second connecting member 13, the connecting mechanism 100 and the anti-release structure 200 in the fifth embodiment are different from those in the first embodiment.
In the assembled implantation device 1 provided in this embodiment, the first connecting element 12 is a stepped column 124, a counterbore 1211 is disposed on a proximal end surface of the stepped column 124, the counterbore 1211 is used for fixing the first component 10, the second connecting element 13 is a circular column 134, the circular column 134 is a proximal end of the central element 1101 and is integrally processed, the proximal end of the circular column 134 and a distal end of the stepped column 124 have elasticity and form a mutually matched buckling structure 1006, the buckling structure 1006 is the connecting mechanism 100, and the connecting mechanism 100 realizes fixed connection of the first connecting element 12 and the second connecting element 13, as shown in fig. 29.
In this embodiment, the anti-disengaging structure 200 of the first connecting member 12 and the second connecting member 13 is an elastic protrusion structure 2006 disposed on the fastening structure 1006, the elastic protrusion structure 2006 plays a role of limiting and preventing disengagement in a natural state, so as to prevent relative axial and circumferential looseness between the first assembly 10 and the second assembly 11, and the elastic protrusion structure 2006 is elastically deformed by the auxiliary tool 2, so as to separate the first connecting member 12 from the second connecting member 13, and enable the first assembly 10 and the second assembly 11 to be fixedly connected and repeatedly detached.
In a preferred embodiment, the stepped column 124 is a guide rail column 1241, the guide rail column 1241 is a cylinder provided with a guide rail 12411 and a counterbore 1211, the guide rail 12411 is on the outer circumferential surface of the distal end of the guide rail column 1241, the counterbore 1211 is in the proximal end surface of the guide rail column 1241, and the counterbore 1211 is used for fixing the first component 10, as shown in fig. 30a and 30b, the annular column 134 is a guide groove ring 1341, the guide groove ring 1341 is provided with a guide groove 13411, the guide groove 13411 has a shape corresponding to the guide rail 12411, the guide groove 13411 has a space size capable of accommodating the guide rail 12411, the guide groove ring 1341 is integrally formed with the proximal end of the center piece 1101, as shown in fig. 31a, and the fastening structure 1006 is a slide rail structure 10061 formed by the guide rail 12411 and the guide groove 13411, so as to realize the fixed connection between the first connecting piece 12 and the second connecting piece 13. At this time, the elastic protrusion structure 2006 is an embedded structure on the slide rail structure 10061, and in a matching state, the top surface of the guide rail 12411 is higher than the top surface of the guide groove 13411, and the guide rail 12411 is embedded in the guide groove 13411, so as to achieve a release prevention function, as shown in fig. 31 b.
In another preferred embodiment, the step post 124 is a spring post 1242, the outer circumference of the spring post 1242 is provided with a spring 12421, the proximal end of the spring post 1242 is provided with a counterbore 1211, the counterbore 1211 is used to fix the first component 10, as shown in fig. 32a and 32b, the annular post 134 is a notch ring 1342, the notch ring 1342 is circumferentially provided with a notch 13421, the notch ring 1342 is integrally formed with the proximal end of the centerpiece 1101, as shown in fig. 33a, the elastic sheet post 1242 can be inserted into the notch ring 1342, at this time, the fastening structure 1006 is the elastic sheet structure 10062 formed by the elastic sheet 12421 and the notch 13421, so as to realize the fixed connection between the first connecting piece 12 and the second connecting piece 13, at this time, the elastic protrusion structure 2006 is an embedded structure formed by the elastic sheet 12421 and the notch 13421, in the engaged state, one end of the elastic piece 12421 is convex and is embedded in the notch 13421 of the notch ring 1342, so as to realize the anti-release function, as shown in fig. 33 b.
Example six:
the present embodiment is based on the first embodiment, and the seventh embodiment is different from the first embodiment in that the implantation instrument 1 in the present embodiment comprises an intermediate member 14.
The intermediate member 14 in this embodiment is used to increase the axial distance between the first member 10 and the second member 11, as shown in fig. 4, the length of the axial distance is a multiple of 0.5mm, the proximal end and the distal end of the intermediate member 14 are respectively provided with a connection mechanism 100 for cooperating with the first connection member 12 and the second connection member 13, and the connection mechanism 100 is provided with an anti-release structure 200.
Example seven:
the present embodiment is based on the sixth embodiment, and the seventh embodiment is different from the first embodiment in that the intermediate element 14 in the present embodiment is an intermediate element 150.
In this embodiment, the intermediate member 14 is one or more intermediate members 150 that fit over the first connector 12 and/or the second connector 13, the intermediate members 150 having an axial length that is a multiple of 0.5mm for increasing the axial spacing between the first member 10 and the second member 11, as shown in fig. 36a and 36 b.
Example eight:
the present embodiment is based on the seventh embodiment, and the structural design of the intermediate assembly 14 in the eighth embodiment is different from that in the seventh embodiment.
In this embodiment, the insertion instrument 1 is of a non-circular rotationally symmetrical or eccentric configuration and the intermediate member 14 is an orientation adjusting member 140 for adjusting the relative angle between the first member 10 and the second member 11 in the circumferential direction and the axial height between the first member 10 and the second member 11, as shown in fig. 37. The axial height is a single or multiple of the feed depth between the first assembly 10 and the second assembly 11, when the feed mode is a screw feed, the circumferential rotation angle is defined as omega, the screw pitch is P, the feed depth is (360-omega)/360 DEG xP, and when the feed mode is a step type or a tooth type or other types, the feed depth is a single or multiple of the height of a single step or the tooth pitch or the height of the type thereof.
Example nine:
the present embodiment is based on the eighth embodiment, and the structural design of the intermediate element 14 in the ninth embodiment is different from that in the eighth embodiment.
In this embodiment, each component of the implantation instrument 1 is axially angled, at this time, the direction adjustment member 140 is used to adjust the axial relative angle between the first component 10 and the second component 11, a plane where a proximal end of the direction adjustment member 140 is located is defined as α 1, a plane where a distal end of the direction adjustment member 140 is located is defined as α 2, an included angle θ between the directions α 1 and α 2 is a bending angle of the direction adjustment member 140, and the included angle θ satisfies the following mathematical relationship: theta is more than 0 degree and less than 90 degrees; further, the included angle θ satisfies the following mathematical relationship: theta is 10 DEG-45 DEG as shown in FIGS. 38a and 38 b.
In this embodiment, the direction adjustment member 140 is a partially hollow tubular member, as shown in fig. 39.
Example ten:
the embodiment is based on the first embodiment, and the second embodimentThe connecting mechanism 100 is provided with a guide structure 1005, the guide structure 1005 is the micro-magnet 10051 arranged at the far end of the first connecting piece 12 and the near end of the second connecting piece 13, the micro-magnet 10051 is fixed by adopting an embedded structure or a coating type and has opposite attraction, the rapid alignment of the first component 10 and the second component 11 is realized, and the total volume of the micro-magnet 10051 is not more than 60mm3And Magnetic Resonance Imaging (MRI) compatibility, as shown in fig. 34a to 35 b.
Example eleven:
the embodiment provides a kit, which comprises a plurality of first components 10 with different specifications, a plurality of second components 11 with different specifications, a plurality of middle components 14 with different specifications and an auxiliary tool 2, wherein the specifications comprise the diameters of the first components 10 and the second components 11, the height of the middle components 14 and the bending angle of the middle components 14, one end of the auxiliary tool 2 is detachably connected with the middle components 14, the first connecting piece 12 and the second connecting piece 13, and according to instructions, the matching and assembling connection between the first components 10 with different specifications and the second components 11 with different specifications is realized, or the quick matching, the disassembling and the assembling connection between the first components 10 with different specifications, the middle components 14 with different specifications and the second components 11 with different specifications are realized. The design has the advantages that the product personalized customization based on each component as a standard part is realized, particularly for some lesion parts with special anatomical structures, the product components can be flexibly selected, so that an optimal product solution is matched, the long operation waiting time for patients to use the optimal product and have to directly order the optimal product from manufacturers until operators acquire the optimal product is greatly reduced, particularly various processing time, sterilization time and transportation time required by manufacturers for producing and manufacturing the product are included, and sufficient guarantee is provided for the most appropriate product for the patients to use at the first time.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent alterations and modifications are intended to be included within the scope of the present invention, without departing from the spirit and scope of the utility model.
Claims (10)
1. An assemblable implantation instrument (1), comprising: the device comprises a first component (10) and a second component (11), wherein the first component (10) and the second component (11) are three-dimensional net structures and/or bracket structures, a first connecting piece (12) is arranged at the far end of the first component (10), and a second connecting piece (13) is arranged at the near end of the second component (11), and is characterized in that the first connecting piece (12) and the second connecting piece (13) are provided with at least one connecting mechanism (100) which is matched with each other to realize the connection of the first component (10) and the second component (11); coupling mechanism (100) are equipped with prevents that release structure (200), prevent that release structure (200) realizes two kinds of functions through local deformation or displacement: one is used for preventing relative axial or circumferential looseness after the first component (10) and the second component (11) are connected, and the other is used for quickly disassembling the first component (10) and the second component (11) by an auxiliary tool (2) in a connected state.
2. An assemblable implantation device (1) as claimed in claim 1, wherein said first component (10) is a net-like structure constrained at both ends and crowned in the middle, and said second component (11) comprises a support structure defined by a plurality of elastic skeletons diverging outwards from a central part (1101), said support structure being non-net and having at most one layer of undulated structure, said elastic skeletons converging in a plurality of U-shaped channels (1102) in the region of said central part (1101), said U-shaped channels (1102) being external to the distal end of said central part (1101); the first connecting piece (12) is a hollow bolt (120), the hollow bolt (120) is provided with a through hole (1201), the through hole (1201) is used for fixing the first assembly (10), the second connecting piece (13) is a T-shaped nut (130) provided with a convex nail (1301), the convex nail (1301) of the T-shaped nut (130) is inserted into the U-shaped groove (1102), the proximal end face of the T-shaped nut (130) is located in the central piece (1101) or is flush with the proximal end face of the central piece (1101), and the T-shaped nut (130) is fixed relative to the central piece (1101) to form an internal thread; the connecting mechanism (100) is a threaded structure (1001) formed by matching the hollow bolt (120) and the T-shaped nut (130), and the first connecting piece (12) and the second connecting piece (13) are fixedly connected; the cross-sectional area of the far end of the hollow bolt (120) is smaller than that of the near-end inner cavity of the T-shaped nut (130), so that a guide structure (1005) is formed;
or the first connecting piece (12) is a buckle (121), the far end of the buckle (121) is provided with a multi-claw structure (1210), the multi-claw structure (1210) has elasticity, a counter bore (1211) is formed in the near end of the buckle (121), the counter bore (1211) is used for fixing the first component (10), the second connecting piece (13) is a clamping groove (131), the buckling groove (131) is matched and connected with the multi-claw structure (1210), the far end of the buckling groove (131) is a cylinder (1310) provided with a convex nail (1301), the convex nail (1301) of the clamping groove (131) is inserted into the U-shaped groove (1102) of the central piece (1101), the connecting mechanism (100) is a buckle fixing structure (1002) formed by matching the multi-claw structure (1210) and the buckle groove (131), and fixed connection of the first connecting piece (12) and the second connecting piece (13) is realized;
or, the first connecting piece (12) is a convex shaft (122), a counterbore (1211) and a transverse threaded hole (1220) are arranged at the near end of the convex shaft (122), the counterbore (1211) is used for fixing the first component (10), the second connecting piece (13) is a concave shaft (132), a transverse through hole (1320) is arranged at the near end of the concave shaft (132), the transverse through hole (1320) and the transverse threaded hole (1220) are coaxial, a cylinder (1310) provided with a convex nail (1301) is arranged at the far end of the concave shaft (132), and the convex nail (1301) of the concave shaft (132) is inserted into the U-shaped groove (1102) of the central piece (1101); the connecting mechanism (100) is a splicing and inserting structure (1003) formed by matching the far end of the convex-shaped shaft (122) and the near end of the concave-shaped shaft (132), and the splicing and inserting structure (1003) forms interference fit or transition fit to realize the fixed connection of the first connecting piece (12) and the second connecting piece (13);
or, the first connecting piece (12) is a pressure spring shaft (123), the pressure spring shaft (123) is composed of a stepped shaft (1231) and a spring (1232) with different diameters, the diameter of the proximal end of the stepped shaft (1231) is larger than that of the distal end, a transverse hole groove (12311) is formed in the outer surface of the distal end of the stepped shaft (1231), the spring (1232) is arranged in the transverse hole groove (12311), one end of the spring (1232) is fixed in the transverse hole groove (12311), the other end of the spring (1232) is connected with a limiting part (12321), in a natural state, most of the surface of the limiting part (12321) is exposed out of the stepped shaft (1231), a counter bore (1211) is arranged at the proximal end of the stepped shaft (1231), the counter bore (1211) is used for fixing the first component (10), the second connecting piece (13) is a positioning shaft (133), and the proximal end of the positioning shaft (133) is a counter bore (1211) matched with the stepped shaft (1231), the outer surface of the proximal end of the positioning shaft (133) is provided with a limiting hole groove (1331), the shape of the limiting hole groove (1331) corresponds to that of the limiting part (12321), the limiting part (12321) can be accommodated in the limiting hole groove (1331), the distal end of the positioning shaft (133) is a cylinder (1310) provided with a convex nail (1301), the convex nail (1301) of the positioning shaft (133) is inserted into the U-shaped groove (1102) of the center piece (1101), the connecting mechanism (100) is a composite structure (1004) formed by matching the limiting part (12321) and the limiting hole groove (1331), and the first connecting piece (12) and the second connecting piece (13) are fixedly connected;
or, first connecting piece (12) are ladder post (124), the near-end face of ladder post (124) is equipped with counter bore (1211), counter bore (1211) are used for fixing first subassembly (10), second connecting piece (13) are ring post (134), the ring post is the near-end of centerpiece (1101) is formed through integrated processing, the near-end of ring post (134) with the distal end of ladder post (124) has elasticity to constitute lock structure (1006) of mutually supporting, lock structure (1006) are promptly coupling mechanism (100), coupling mechanism (100) realize first connecting piece (12) with the fixed connection of second connecting piece (13).
3. An assemblable implantation instrument (1) according to claim 2, when the first connecting piece (12) is the hollow bolt (120) and the second connecting piece (13) is the T-shaped nut (130), the anti-release structure (200) is realized in a mechanical clamping mode, a plurality of non-threaded areas (10011) are arranged on the outer surface of the stud of the hollow bolt (120), when the hollow bolt (120) is matched with the T-shaped nut (130), the space between the non-threaded area (10011) and the T-shaped nut (130) forms a three-dimensional cavity (2001), the auxiliary tool (2) is used for clamping a specific position on the central piece (1101) corresponding to the three-dimensional cavity (2001) to indirectly generate mechanical deformation of the three-dimensional cavity (2001), relative axial and circumferential looseness between the first component (10) and the second component (11) can be prevented; meanwhile, the auxiliary tool (2) is used for clamping the non-specified position of the central piece (1101), so that the three-dimensional cavity (2001) is restored to the original state, the first connecting piece (12) and the second connecting piece (13) are separated, and the first assembly (10) and the second assembly (11) are fixedly connected and repeatedly disassembled;
or, when the first connecting piece (12) is the buckle (121) and the second connecting piece (13) is the buckle groove (131), the anti-release structure (200) is a buckle matching structure (2002) formed between the elastic multi-claw structure (1210) and the buckle groove (131), and when the first connecting piece (12) is matched with the second connecting piece (13), the multi-claw structure (1210) is embedded into the buckle groove (131) under the elastic action to realize fixed connection, so that relative axial and circumferential looseness between the first assembly (10) and the second assembly (11) is prevented; a hollow area (1302) is formed between the buckle (121) and the buckle groove (131), the auxiliary tool (2) is inserted into the hollow area (1302) and extrudes the multi-claw structure (1210), so that the multi-claw structure (1210) is separated from the buckle groove (131) under the action of external force, the first connecting piece (12) is separated from the second connecting piece (13), and the first assembly (10) and the second assembly (11) are fixedly connected and repeatedly disassembled;
or, when the first connecting piece (12) is the convex shaft (122) and the second connecting piece (13) is the concave shaft (132), the anti-disengagement structure (200) is a screw (2003), when the convex shaft (122) is matched with the concave shaft (132), the screw (2003) is in threaded fit with the transverse threaded hole (1220) to realize an anti-disengagement function, relative axial and circumferential looseness between the first component (10) and the second component (11) is prevented, the screw (2003) is disengaged from the transverse threaded hole (1220) by the aid of the auxiliary tool (2), the first connecting piece (12) is separated from the second connecting piece (13), and the first component (10) and the second connecting component (11) are fixedly connected and repeatedly disassembled;
or, when the first connecting piece (12) is the pressure spring shaft (123) and the second connecting piece (13) is the positioning shaft (133), the disengagement preventing structure (200) is a spring fitting structure (2004), in the matching state, the limiting component (12321) is exposed out of the limiting hole groove (1331), the first connecting piece (12) and the second connecting piece (13) are fixed in all directions, relative axial and circumferential looseness between the first assembly (10) and the second assembly (11) is prevented, the limiting part (12321) is transversely jacked into the transverse hole groove (12311) of the first connecting piece (12) by the aid of the auxiliary tool (2), the first connecting piece (12) is separated from the second connecting piece (13), and the first assembly (10) and the second assembly (11) are fixedly connected and repeatedly disassembled;
or, when the first connecting piece (12) is the stepped column (124), and the second connecting piece (13) is the circular column (134), the anti-disengagement structure (200) is an elastic bulge structure (2006) arranged on the buckling structure (1006), the elastic bulge structure (2006) plays a role in limiting and disengaging in a natural state, relative axial and circumferential looseness between the first assembly (10) and the second assembly (11) is prevented, the elastic bulge structure (2006) can be elastically deformed by the aid of the auxiliary tool (2), the first connecting piece (12) is separated from the second connecting piece (13), and the first assembly (10) and the second assembly (11) are fixedly connected and repeatedly detached.
4. An assemblable implantation instrument (1) according to claim 1, characterized in that said implantation instrument (1) further comprises an intermediate component (14), said intermediate component (14) having different specifications for increasing the axial spacing between said first component (10) and said second component (11), said axial spacing having a length of a multiple of 0.5 mm; the near end and the far end of the middle component (14) are respectively provided with a connecting mechanism (100) which is matched with the first connecting piece (12) and the second connecting piece (13), and the connecting mechanism (100) is provided with the anti-release structure (200).
5. An assemblable implantation instrument (1) according to claim 4, wherein said intermediate components (14) are one or more intermediate elements (150) fitted over said first connector (12) and/or said second connector (13), said intermediate elements (150) having an axial length of a multiple of 0.5mm for increasing the axial spacing between said first component (10) and said second component (11).
6. An assemblable implantation instrument (1) according to claim 4, characterized in that said implantation instrument (1) has a non-circumferential rotationally symmetrical configuration or an eccentric configuration, said intermediate component (14) being an orientation adjustment (140) for adjusting the relative angle between said first component (10) and said second component (11) in the circumference and the axial height between said first component (10) and said second component (11), said axial height being a single or multiple of the depth of feed between said first component (10) and said second component (11); when the feeding mode is screw feeding, the circumferential rotation angle is defined to be omega, the screw pitch is defined to be P, and the feeding depth is (360-omega)/360-multiplied by P; when the feed is stepped or toothed, the feed depth is a single or multiple of the height of a single step or pitch.
7. The assemblable implantation instrument (1) according to claim 4, wherein each component of said implantation instrument (1) is axially angled, said intermediate component (14) is a direction adjustment member (140) for adjusting the relative axial angle between said first component (10) and said second component (11), a plane defined by a proximal end of said direction adjustment member (140) is α 1, a plane defined by a distal end of said direction adjustment member (140) is α 2, and an angle θ between said directions α 1 and α 2 is a bending angle of said direction adjustment member (140), said angle θ satisfying the following mathematical relationship: theta is more than 0 degree and less than 90 degrees.
8. An assemblable implantation instrument (1) according to claim 4, wherein said first and second connection members (12, 13) are made of a metal or polymer material having elasticity or shape memory, and said intermediate member (14) is made of a metal or polymer material having rigidity or elasticity or shape memory.
9. An assembled implantation instrument (1) according to claim 1, wherein said connection mechanism (100) is provided with a guiding structure (1005), said guiding structure (1005) is a micro-magnet (10051) provided at the distal end of said first connection member (12) and the proximal end of said second connection member (13), said micro-magnet (10051) is fixed in an embedded or coated manner and has opposite attraction, fast alignment of said first assembly (10) and said second assembly (11) is achieved, and the total volume of said micro-magnet (10051) is not more than 60mm3And has nuclear magnetic resonance compatibility.
10. Kit comprising an assemblable implantation device (1) according to any one of the preceding claims, characterized in that it comprises a plurality of first elements (10) of different sizes, a plurality of second elements (11) of different sizes, a plurality of intermediate elements (14) of different sizes, and said auxiliary tool (2), said sizes comprising the diameters of said first elements (10) and of said second elements (11), the effective height of said intermediate elements (14) and the bending angle of said intermediate elements (14), one end of said auxiliary tool (2) being detachably connected to said intermediate elements (14), to said first connecting means (12) and to said second connecting means (13), said first elements (10) of different sizes and to said second elements (11) of different sizes being able to be actuated immediately by the operator, in response to a real-time command in use, to perform the operations between said first elements (10) of different sizes and said second elements (11) of different sizes, Or the first components (10) with different specifications, the middle components (14) with different specifications and the second components (11) with different specifications are quickly assembled, disassembled and assembled.
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| CN202023234825.XU CN216777143U (en) | 2020-12-28 | 2020-12-28 | Assembled implantation instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023234825.XU CN216777143U (en) | 2020-12-28 | 2020-12-28 | Assembled implantation instrument |
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| CN216777143U true CN216777143U (en) | 2022-06-21 |
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