Photocuring intraosseous support implant device

Abstract

The present invention discloses a photo-curing intraosseous support implant device. When in use, first drill a hole in the damaged bone of a patient, then remove the intramedullary substance in the bone, then embed a delivery tube and an expandable capsule into a sleeve, extend the sleeve into the intraosseous space of the damaged bone, and then slide the sleeve relatively so that the sleeve extends out of the intraosseous space to enable the expandable capsule to be embedded into the intraosseous space; then use a syringe to inject a photosensitive fluid through a feeding port, and the pressure of the syringe causes the photosensitive fluid to be fed into the expandable capsule along the delivery tube, so that the expandable capsule expands and finally expands into a shape that fits and fills the intraosseous space; then start a light source, and one end of the optical fiber extending out of the delivery tube receives the light source and scatters light in the expandable capsule to cure the photosensitive fluid, and the cured photosensitive fluid and the expandable capsule together form an intraosseous support.

Description

Technical Field

[0001] The present invention relates to the technical field of orthopedic medicine, and particularly relates to a light-curing intraosseous support implant device. Background Art

[0002] Bone injury is a type of orthopedic disease caused by congenital bone abnormalities or acquired factors. Bone replacement and reconstruction surgery is often an effective means of treating bone injury, and artificial internal prostheses are the most common bone substitutes at present. Since metal materials (such as titanium alloy, tantalum alloy, cobalt-based alloy, etc.) have high strength and good fatigue resistance, most of the orthopedic internal prostheses used clinically are made of metal. The injury positions and structures of each patient's bones are different, so it is necessary to make personalized artificial internal prostheses for each patient, which requires prior measurement of the size and structure of the injured bones of the patient. The operation is time-consuming and laborious, and there is an urgent need for a more efficient and simple intraosseous support implant scheme. Summary of the Invention

[0003] The main object of the present invention is to provide a light-curing intraosseous support implant device, aiming to solve the problem that there is an urgent need for a more efficient and simple intraosseous support implant scheme at present.

[0004] To achieve the above object, the technical solution proposed by the present invention is:

[0005] A light-curing intraosseous support implant device, comprising an inflatable sac, a delivery tube, an optical fiber and a cannula; the delivery tube includes a first end and a second end; the open end of the inflatable sac is sealingly connected to the first end; the optical fiber sequentially passes through the second end, the first end, and extends into the inflatable sac; the delivery tube is provided with a material injection port and an exhaust port; the material injection port is closer to the first end than the exhaust port; the cannula is used for movably sleeving a part of the inflatable sac and the delivery tube to place the inflatable sac and a part of the delivery tube into the intraosseous space;

[0006] The material injection port is used for injecting photosensitive fluid; the inflatable sac is used for receiving the photosensitive fluid and expanding to form a shape suitable for filling the intraosseous space; the optical fiber is used for receiving a light source and scattering light in the inflatable sac to cure the photosensitive fluid, thereby forming an intraosseous support.

[0007] Preferably, an inner tube is further arranged in the delivery tube; the inner tube and the delivery tube are concentrically arranged; the optical fiber is used for being embedded in the inner tube.

[0008] Preferably, the inner tube is connected to the inner wall of the delivery tube through a plurality of connecting columns.

[0009] Preferably, it further includes a cutting line; the sleeve includes a third end and a fourth end; an annular groove is formed in the inner wall of the sleeve; the annular groove is closer to the fourth end; the annular groove includes an annular bottom wall, and a first side wall and a second side wall that are opposite and parallel to each other; the first side wall is closer to the fourth end; a through hole is also formed in the tube wall of the sleeve; one end of the through hole communicates with the second side wall; the other end of the through hole penetrates the outer wall of the sleeve; the extending direction of the through hole is parallel to the central axis of the sleeve; the through hole is located on the side of the annular groove close to the third end.

[0010] One end of the cutting line is connected to the first side wall; the other end of the cutting line movably passes through the through hole and extends out of the sleeve; the connection point of the cutting line and the first side wall is close to the outlet of the through hole on the second side wall; the cutting line can be pulled from the first state to the second state; when the cutting line is in the first state, the cutting line is arranged in a ring and accommodated in the annular groove; when the cutting line is in the second state, the cutting line is taut.

[0011] Preferably, it further includes a plurality of extrusion groups; the plurality of extrusion groups are annularly and evenly arranged in the annular groove; each extrusion group includes a first extrusion piece and a second extrusion piece; both the first extrusion piece and the second extrusion piece are arc-shaped, and both the first extrusion piece and the second extrusion piece are elastic pieces; both ends of the first extrusion piece are connected to the first side wall; both ends of the second extrusion piece are connected to the second side wall; the middle part of the first extrusion piece abuts against the middle part of the second extrusion piece.

[0012] Preferably, it further includes a guide tube, a rotating shaft, a sheave and a turning handle; the guide tube includes a first tube and a second tube; the first tube penetrates the tube wall of the sleeve and communicates with the end of the through hole away from the second side wall; the second tube is communicated with the end of the first tube away from the sleeve, and the central axis of the second tube is parallel to the central axis of the sleeve; the rotating shaft rotatably penetrates the tube wall of the sleeve; the rotating shaft is perpendicular to the central axis of the sleeve; the sheave is coaxially connected to the rotating shaft; the turning handle is connected to the end of the rotating shaft away from the sleeve; the end of the cutting line extending out of the through hole sequentially passes through the first tube, the second tube and is wound around the sheave.

[0013] Preferably, it further includes a moving rod; an arc-shaped through groove is formed between the fourth end of the sleeve and the first side wall; the moving rod is movably inserted through the arc-shaped through groove, and the moving rod is parallel to the central axis of the sleeve; one end of the moving rod extends into the annular groove; a baffle is arranged at the end of the moving rod extending into the arc-shaped groove; the baffle is used to abut against the first side wall; the other end of the moving rod extends out of the fourth end; an external thread is arranged at the end of the moving rod extending out of the fourth end; a nut is screwed onto the end of the moving rod extending out of the fourth end; one end of the cutting wire is connected to the end of the moving rod extending into the arc-shaped groove.

[0014] Preferably, a feeding pipe is connected to the feeding port in a communicating manner; the feeding pipe and the conveying pipe intersect obliquely; a first diaphragm and a second diaphragm are embedded in the feeding pipe; both the first diaphragm and the second diaphragm are semi-circular; the first diaphragm and the second diaphragm can abut against each other to close the feeding pipe.

[0015] Preferably, an exhaust pipe is connected to the exhaust port in a communicating manner; the exhaust pipe and the conveying pipe intersect obliquely; a third diaphragm for sealing the exhaust pipe is embedded in the exhaust pipe; a cross cut is formed in the third diaphragm.

[0016] Preferably, the expandable bladder is made of polyethylene terephthalate; a texture layer is arranged on the outer surface of the expandable bladder.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] The photo-curing intraosseous support implant device proposed by the present invention can implant a support into the damaged bone of a patient more simply and efficiently to reconstruct the bone structure of the patient; during use, first make a hole in the damaged bone of the patient, then remove the intramedullary substance, then embed the conveying pipe and the expandable bladder into the sleeve, extend the sleeve into the intramedullary space of the damaged bone, and then slide the sleeve relatively so that the sleeve extends out of the intramedullary space to enable the expandable bladder to be embedded in the intramedullary space; then use a syringe to inject a photosensitive fluid through the feeding port, and the pressure of the syringe makes the photosensitive fluid enter the expandable bladder along the conveying pipe, so that the expandable bladder expands and finally expands into a shape that fits and fills the intramedullary space; then start the light source, and the end of the optical fiber extending out of the conveying pipe receives the light source and scatters the light in the expandable bladder, so that the photosensitive fluid solidifies, and the solidified photosensitive fluid and the expandable bladder together form an intraosseous support to play a role in reconstructing and repairing the damaged bone of the patient; the whole operation process is more simple and efficient, and it is no longer necessary to measure the size and structure of the damaged bone of the patient first. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 Schematic structural diagram of an embodiment of the photo-curing intraosseous support implanting device proposed by the present invention;

[0021] Figure 2 For Figure 1 Enlarged schematic diagram of the internal structure at A in

[0022] Figure 3 For Figure 1 Enlarged schematic diagram of the internal structure at B in

[0023] Figure 4 Schematic structural diagram of another embodiment of the photo-curing intraosseous support implanting device proposed by the present invention;

[0024] Figure 5 For Figure 4 Enlarged schematic diagram of the internal structure at C in

[0025] Figure 6 For Figure 4 Enlarged schematic diagram of the internal structure at D in

[0026] Figure 7 Cross-sectional structural diagram of the sleeve of the photo-curing intraosseous support implanting device proposed by the present invention at the annular groove in an embodiment;

[0027] Figure 8 Schematic structural diagram of the pressure feeding member and the material storage member of another embodiment of the photo-curing intraosseous support implanting device proposed by the present invention.

[0028] Explanation of reference numerals:

[0029] 110. Delivery pipe; 120. Expandable bladder; 130. First end; 140. Second end; 150. Optical fiber; 160. Injection pipe; 170. Exhaust pipe; 180. Sleeve; 190. Third end; 210. Fourth end; 220. Inner pipe; 230. Connecting column; 240. First diaphragm; 250. Second diaphragm; 260. Third diaphragm; 270. Injection port; 280. Exhaust port; 290. Rotating shaft; 310. Rotating handle; 320. Grooved pulley; 330. First pipe; 340. Second pipe; 350. Cutting line; 360. Through hole; 370. Moving rod; 380. Arc-shaped through groove; 390. First pressing piece; 410. Second pressing piece; 420. Annular groove; 430. Annular bottom wall; 440. First side wall; 450. Second side wall; 460. Nut; 470. Baffle; 480. First groove end point; 490. Second groove end point; 510. First through pipe; 520. Sleeve; 540. Extrusion screw; 550. Rotating rod; 560. Rotating handle; 570. Second through pipe; 580. Feeding hole; 590. Syringe; 610. Piston head; 620. Push rod; 630. Push plate.

[0030] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In the present invention, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0036] The present invention provides a photo-curing intraosseous support implant device.

[0037] Please refer to the attached Figure 1 - attached Figure 7 , in an embodiment of a photo-curing intraosseous support implant device provided by the present invention, the photo-curing intraosseous support implant device includes an inflatable bladder 120, a delivery tube 110, an optical fiber 150, and a sleeve 180 (here, the sleeve 180 is a rigid sleeve 180); the delivery tube 110 includes a first end 130 and a second end 140; the open end of the inflatable bladder 120 is sealingly connected to the first end 130; the optical fiber 150 sequentially passes through the second end 140 and the first end 130 and extends into the inflatable bladder 120; the delivery tube 110 is provided with a material injection port 270 and an exhaust port 280; the material injection port 270 is closer to the first end 130 than the exhaust port 280; the sleeve 180 is used to movably sleeved on the inflatable bladder 120 and a part of the delivery tube 110 to place the inflatable bladder 120 and a part of the delivery tube 110 into the intraosseous space.

[0038] The material injection port 270 is used to inject a photosensitive fluid; the inflatable bladder 120 is used to receive the photosensitive fluid and expand to form a shape suitable for filling the intraosseous space; the optical fiber 150 is used to receive a light source and scatter light within the inflatable bladder 120 to cure the photosensitive fluid, thereby forming an intraosseous support.

[0039] The photo-curing intraosseous support implant device proposed by the present invention can implant a support into the damaged bone of a patient more simply and efficiently to reconstruct the bone structure of the patient. When in use, first make a hole in the damaged bone of the patient, then remove the intramedullary substance in the bone, then embed the delivery tube 110 and the inflatable bladder 120 into the sleeve 180, extend the sleeve 180 into the intraosseous space of the damaged bone, and then slide the sleeve 180 relatively so that the sleeve 180 extends out of the intraosseous space to make the inflatable bladder 120 embed into the intraosseous space. Then use a syringe to inject a photosensitive fluid through the injection port 270. The pressure of the syringe sends the photosensitive fluid along the delivery tube 110 into the inflatable bladder 120, causing the inflatable bladder 120 to expand and finally expand into a shape that fits and fills the intraosseous space. Then start the light source. One end of the optical fiber 150 extending out of the delivery tube 110 receives the light source and scatters the light inside the inflatable bladder 120 to cure the photosensitive fluid (this process lasts for several seconds, such as 10 seconds). The cured photosensitive fluid and the inflatable bladder 120 together form an intraosseous support to play a role in reconstructing and repairing the damaged bone of the patient. The whole operation process is simpler and more efficient, and there is no need to measure the size and structure of the damaged bone of the patient first.

[0040] In addition, an inner tube 220 is further arranged inside the delivery tube 110. The inner tube 220 and the delivery tube 110 are concentrically arranged. The optical fiber 150 is used to be embedded in the inner tube 220. The inner tube 220 is connected to the inner wall of the delivery tube 110 through a plurality of connecting columns 230. By arranging the inner tube 220, it plays a role in protecting and guiding the optical fiber 150.

[0041] Meanwhile, as shown in the attached Figure 4 - attached Figure 7 figure, the photo-curing intraosseous support implant device further includes a cutting line 350. The sleeve 180 includes a third end 190 and a fourth end 210. When the sleeve 180 is sleeved on the delivery tube 110, the third end 190 is closer to the second end 140 than the fourth end 210. An annular groove 420 is formed on the inner wall of the sleeve 180. The annular groove 420 is closer to the fourth end 210. The annular groove 420 includes an annular bottom wall 430, and a first side wall 440 and a second side wall 450 that are opposite to each other and arranged in parallel. The first side wall 440 is closer to the fourth end 210. A through hole 360 is further formed on the tube wall of the sleeve 180. One end of the through hole 360 communicates with the second side wall 450. The other end of the through hole 360 penetrates through the outer wall of the sleeve 180. The extending direction of the through hole 360 is parallel to the central axis of the sleeve 180. The through hole 360 is located on the side of the annular groove 420 close to the third end 190.

[0042] One end of the cutting line 350 is connected to the first side wall 440; the other end of the cutting line 350 movably passes through the through hole 360 and extends out of the sleeve 180; the connection point of the cutting line 350 and the first side wall 440 is close to the outlet of the through hole 360 on the second side wall 450; the cutting line 350 can be pulled from the first state to the second state; when the cutting line 350 is in the first state, the cutting line 350 is annularly arranged and accommodated in the annular groove 420 (as shown in the attached Figure 6 and the attached Figure 7 ); when the cutting line 350 is in the second state, the cutting line 350 is taut (that is, at this time, the cutting line 350 has completed the cutting of the delivery tube 110 / the expandable bladder 120 and the internally cured photosensitive fluid).

[0043] Through the above technical solution, the photosensitive fluid, the delivery tube 110 or the expandable bladder 120 after curing can be cut to complete the operation; specifically, when the photosensitive fluid is cured, the position of the sleeve 180 is moved so that the connection position of the expandable bladder 120 and the delivery tube 110 is located between the cutting line 350 and the third end 190 (as shown in the attached Figure 6 ), and then the cutting line 350 is pulled at the end extending out of the sleeve 180 of the cutting line 350, so that the cutting line 350 is gradually tightened and the expandable bladder 120 and the internally cured photosensitive fluid are cut to leave the expandable bladder 120 and the internally cured photosensitive fluid (i.e., the intraosseous support) in the patient's bone.

[0044] In addition, as shown in the attached Figure 6 , the present photo-curing intraosseous support implantation device further includes a plurality of extrusion groups (4 in this embodiment); the plurality of extrusion groups are annularly and evenly arranged in the annular groove 420; the extrusion group includes a first extrusion piece 390 and a second extrusion piece 410; both the first extrusion piece 390 and the second extrusion piece 410 are arc-shaped, and both the first extrusion piece 390 and the second extrusion piece 410 are elastic pieces; both ends of the first extrusion piece 390 are connected to the first side wall 440; both ends of the second extrusion piece 410 are connected to the second side wall 450; the middle part of the first extrusion piece 390 abuts against the middle part of the second extrusion piece 410; when the cutting line 350 is in the first state, the cutting line 350 is between the extrusion group and the annular bottom wall 430. By providing the extrusion group, it is possible to prevent the cutting line 350 from entering the inner space of the sleeve 180 under normal circumstances, so as to interfere with the delivery tube 110 and the expandable bladder 120.

[0045] Meanwhile, this photo-curing intraosseous support implanting device further includes a guide tube, a rotating shaft 290, a grooved pulley 320, and a rotating handle 310; the guide tube includes a first tube 330 and a second tube 340; the first tube 330 penetrates through the tube wall of the sleeve 180 and communicates with one end of the through hole 360 away from the second side wall 450; the second tube 340 is connected to one end of the first tube 330 away from the sleeve 180, and the central axis of the second tube 340 is parallel to the central axis of the sleeve 180; the rotating shaft 290 rotatably penetrates through the tube wall of the sleeve 180; the rotating shaft 290 is perpendicular to the central axis of the sleeve 180; the grooved pulley 320 is coaxially connected to the rotating shaft 290; the rotating handle 310 is connected to one end of the rotating shaft 290 away from the sleeve 180; one end of the cutting wire 350 extending out of the through hole 360 sequentially penetrates through the first tube 330, the second tube 340, and is wound around the grooved pulley 320. Through the above technical solution, by rotating the rotating handle 310, the pulling of the cutting wire 350 can be completed, which is more convenient.

[0046] In addition, this photo-curing intraosseous support implanting device further includes a moving rod 370; an arc-shaped through groove 380 is formed between the fourth end 210 and the first side wall 440 of the sleeve 180; the moving rod 370 movably penetrates through the arc-shaped through groove 380, and the moving rod 370 is parallel to the central axis of the sleeve 180; one end of the moving rod 370 extends into the annular groove 420; a baffle 470 is provided at one end of the moving rod 370 extending into the arc-shaped groove; the baffle 470 is used to abut against the first side wall 440; the other end of the moving rod 370 extends out of the fourth end 210; an external thread is provided at the end of the moving rod 370 extending out of the fourth end 210; a nut 460 is screwed onto the end of the moving rod 370 extending out of the fourth end 210; one end of the cutting wire 350 is connected to one end of the moving rod 370 extending into the arc-shaped groove; the arc-shaped through groove 380 includes a first groove end point 480 and a second groove end point 490 opposite to each other; the outlet end of the through hole 360 on the second side wall 450 faces between the first groove end point 480 and the second groove end point 490; the arc-shaped through groove 380 is located between the extrusion group and the annular bottom wall 430.

[0047] Through the above technical solution, the position of the cutting wire 350 after cutting can be restored, that is, it can return from the second state to the first state again. Specifically, when the cutting wire 350 is in the second state (for example, the moving rod 370 is located at the first groove end point 480), the nut 460 can be loosened, and then the moving rod 370 can be manually moved, and the moving direction is a circular movement along the arc-shaped through groove 380. During the movement, the moving rod 370 will drive the cutting wire 350 to move, so that the cutting wire 350 is rearranged between each extrusion group and the annular bottom wall 430 (that is, the cutting wire 350 returns to the first state again, for example, the moving rod 370 is located at the second groove end point 490), and then the nut 460 is tightened to fix the position of the moving rod 370 to fix one end of the cutting wire 350.

[0048] Meanwhile, a filling tube 160 is communicatively connected to the filling port 270; the filling tube 160 and the conveying tube 110 intersect obliquely; a first diaphragm 240 and a second diaphragm 250 are embedded in the filling tube 160; both the first diaphragm 240 and the second diaphragm 250 are semi-circular; the first diaphragm 240 and the second diaphragm 250 can abut against each other to seal the filling tube 160. This can play a sealing role, and the syringe can directly pass through the gap between the first diaphragm 240 and the second diaphragm 250 and enter the filling tube 160, and then inject the photosensitive fluid.

[0049] In addition, an exhaust pipe 170 is communicatively connected to the exhaust port 280; the exhaust pipe 170 and the conveying tube 110 intersect obliquely; a third diaphragm 260 for sealing the exhaust pipe 170 is embedded in the exhaust pipe 170; a cross cut (not shown) is provided on the third diaphragm 260. This can play a sealing role, and when the photosensitive fluid is injected into the conveying tube 110, the discharged air can be discharged through the cross cut.

[0050] Meanwhile, the expandable bladder 120 is made of polyethylene terephthalate; a texture layer (not shown) is provided on the outer surface of the expandable bladder 120, which can improve the contact stability between the expandable bladder and the bone internal space.

[0051] In addition, as shown in the attached Figure 8 In another embodiment of the present invention, as shown, the device further includes a pressure filling member and a storage member; the filling port 270 is provided on one side of the conveying tube 110 close to the first end 130; an internal thread is provided on the inner wall of the filling port 270; the pressure filling member includes a sleeve 520, a first through pipe 510, a pressing screw 540, a rotating rod 550 and a rotating handle 560; the first through pipe 510 is communicatively connected to one end of the sleeve 520; the pressing screw 540 is rotatably arranged in the sleeve 520 (the pressing screw 540 and the sleeve 520 form a single-screw pump), and the pressing screw 540 and the sleeve 520 share the same central axis; the rotating rod 550 rotatably passes through the end of the sleeve 520 away from the sleeve; the rotating rod 550 and the pressing screw 540 share the same central axis; the rotating handle 560 is connected to the end of the rotating rod 550 extending out of the sleeve 520; an external thread matching the internal thread of the filling port 270 is formed on the outer wall of the end of the first through pipe 510 away from the sleeve 520, so that the end of the first through pipe 510 away from the sleeve 520 is screwed into the filling port 270; a resistance heating wire (not shown) is annularly embedded in the barrel wall of the sleeve 520.

[0052] The side wall of the sleeve 520 is provided with a feeding hole 580; the inner wall of the feeding hole 580 is provided with internal threads; the storage member includes a second through pipe 570, an injection cylinder 590, a piston head 610, a push rod 620 and a push plate 630; the second through pipe 570 communicates with the injection cylinder 590; an external thread that is screwed with the internal thread of the feeding hole 580 is formed on the outer wall of one end of the second through pipe 570 away from the injection cylinder 590, so that one end of the second through pipe 570 away from the injection cylinder 590 is screwed and arranged in the feeding hole 580; the piston head 610 is slidably and fittingly embedded in the injection cylinder 590, a push rod 620 is connected to one end of the piston head 610 away from the second through pipe 570, and a push plate 630 is connected to one end of the push rod 620 away from the piston head 610; a resistance heating wire (not shown) is annularly embedded in the barrel wall of the injection cylinder 590.

[0053] This embodiment is applied to the case where the photosensitive fluid is colloidal (i.e., photosensitive colloid). Since the photosensitive fluid is a colloid, its viscosity is relatively high at normal temperature. In order to effectively inject the photosensitive colloid into the expandable bladder, during use, the resistance heating wire in the barrel wall of the sleeve 520 and the resistance heating wire in the barrel wall of the injection cylinder 590 are started; then the photosensitive colloid is placed into the injection cylinder 590 (the viscosity of the photosensitive colloid is reduced under the action of the resistance heating wire, which is more conducive to being pushed and squeezed in), the push plate 630 is pushed, and then the photosensitive colloid is injected into the sleeve 520 through the piston head 610. Then the rotating handle 560 is rotated to drive the extrusion screw 540 to rotate, and then the photosensitive colloid in the sleeve 520 is extruded and injected into the conveying pipe, so as to inject the photosensitive colloid into the expandable bladder.

[0054] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A photo-curing intraosseous support implant device, characterized in that, It includes an inflatable sac, a delivery tube, an optical fiber, and a sleeve; the delivery tube includes a first end and a second end; the open end of the inflatable sac is sealingly connected to the first end; the optical fiber sequentially passes through the second end, the first end, and extends into the inflatable sac; the delivery tube is provided with a material injection port and an exhaust port; the material injection port is closer to the first end than the exhaust port; the sleeve is used to movably sleeve a part of the inflatable sac and the delivery tube to place the part of the inflatable sac and the delivery tube into the intramedullary space; The material injection port is used to inject a photosensitive fluid; the inflatable sac is used to receive the photosensitive fluid and expand to form a shape suitable for filling the intramedullary space; the optical fiber is used to receive a light source and scatter light in the inflatable sac to cure the photosensitive fluid, thereby forming an intramedullary support; It further includes a cutting line; the sleeve includes a third end and a fourth end; an annular groove is provided on the inner wall of the sleeve; the annular groove is closer to the fourth end; the annular groove includes an annular bottom wall, and a first side wall and a second side wall that are opposite and parallel to each other; the first side wall is closer to the fourth end; a through hole is further provided on the tube wall of the sleeve; one end of the through hole communicates with the second side wall; the other end of the through hole penetrates the outer wall of the sleeve; the extending direction of the through hole is parallel to the central axis of the sleeve; the through hole is located on the side of the annular groove close to the third end; One end of the cutting line is connected to the first side wall; the other end of the cutting line movably passes through the through hole and extends out of the sleeve; the connection point of the cutting line and the first side wall is close to the outlet of the through hole on the second side wall; The cutting line can be pulled from a first state to a second state; when the cutting line is in the first state, the cutting line is annularly arranged and accommodated in the annular groove; when the cutting line is in the second state, the cutting line is taut; It further includes a plurality of extrusion groups; the plurality of extrusion groups are annularly and evenly arranged in the annular groove; the extrusion group includes a first extrusion piece and a second extrusion piece; both the first extrusion piece and the second extrusion piece are arc-shaped, and both the first extrusion piece and the second extrusion piece are elastic pieces; both ends of the first extrusion piece are connected to the first side wall; both ends of the second extrusion piece are connected to the second side wall; the middle part of the first extrusion piece abuts against the middle part of the second extrusion piece.

2. The photo-curing intraosseous support implant device according to claim 1, characterized in that, An inner tube is further arranged in the delivery tube; the inner tube and the delivery tube are concentrically arranged; the optical fiber is used to be embedded in the inner tube.

3. The photo-curing intraosseous support implant device according to claim 2, characterized in that, The inner tube is connected to the inner wall of the delivery tube through a plurality of connecting columns.

4. The photo-curing intraosseous support implant device according to claim 1, characterized in that, It further includes a guide tube, a rotating shaft, a sprocket and a turning handle; the guide tube includes a first tube and a second tube; the first tube penetrates through the tube wall of the sleeve and communicates with one end of the through hole away from the second side wall; the second tube is communicated with one end of the first tube away from the sleeve, and the central axis of the second tube is parallel to the central axis of the sleeve; the rotating shaft rotatably penetrates through the tube wall of the sleeve; the rotating shaft is perpendicular to the central axis of the sleeve; the sprocket is coaxially connected to the rotating shaft; the turning handle is connected to one end of the rotating shaft away from the sleeve; one end of the cutting wire extending out of the through hole sequentially penetrates through the first tube, the second tube and is wound around the sprocket.

5. The photo-curing intraosseous support implant device according to claim 1, characterized in that, It further includes a moving rod; an arc-shaped through groove is formed between the fourth end of the sleeve and the first side wall; the moving rod movably penetrates through the arc-shaped through groove, and the moving rod is parallel to the central axis of the sleeve; one end of the moving rod extends into the annular groove; a baffle is arranged at one end of the moving rod extending into the arc-shaped through groove; the baffle is used for abutting against the first side wall; the other end of the moving rod extends out of the fourth end; an external thread is arranged at the end of the moving rod extending out of the fourth end; a nut is screwed on the end of the moving rod extending out of the fourth end in a matching manner; one end of the cutting wire is connected to the end of the moving rod extending into the arc-shaped through groove.

6. The photo-curing intraosseous support implant device according to claim 1, characterized in that, The charging port is communicated with a charging pipe; the charging pipe and the conveying pipe intersect obliquely; a first diaphragm and a second diaphragm are embedded in the charging pipe; both the first diaphragm and the second diaphragm are semi-circular; the first diaphragm and the second diaphragm can abut against each other to close the charging pipe.

7. The photo-curing intraosseous support implant device according to claim 1, characterized in that, The exhaust port is communicated with an exhaust pipe; the exhaust pipe and the conveying pipe intersect obliquely; a third diaphragm for sealing the exhaust pipe is embedded in the exhaust pipe; a cross cut is formed in the third diaphragm.

8. The photo-curing intraosseous support implant device according to claim 1, characterized in that, The expandable bladder is made of polyethylene terephthalate; a texture layer is arranged on the outer surface of the expandable bladder.

Images