Conveyor device

Abstract

The present invention relates to a conveying device, comprising: a conveying pipe, the conveying pipe including a first pipe body and a bendable second pipe body which are connected in sequence from the proximal end to the distal end; a connecting component, arranged side by side with the conveying pipe, and the distal end of the connecting component being connected to the distal end of the second pipe body; a driving component, connected to the connecting component, for driving the distal end of the connecting component to move towards the proximal end of the connecting component along the length direction of the connecting component, so as to bend the second pipe body. In this embodiment, the bending degree of the second pipe body can be easily adjusted, so that the shape of the conveying pipe can be adjusted according to different bone grafting sites in different situations to be applicable to different surgeries; by adjusting the bending degree of the second pipe body, it can just extend to the corresponding bone grafting site, so that bone cement can be accurately filled into the required site, the position of bone grafting is accurate, and the expected bone grafting effect can be achieved.

Description

Technical Field

[0001] The present invention relates to the field of medical device design, and particularly to a delivery device. Background Art

[0002] In orthopedic bone grafting surgeries, a bone grafting funnel is usually used. The main function of the bone grafting funnel is to deliver bone cement to the bone grafting site during the bone grafting process. Different models of bone grafting funnels are generally dedicated to a certain type of surgery. For example, a bone grafting funnel matching a fusion device is required for fusion device bone grafting, and a bone grafting funnel matching a joint is required for joint surgeries. Different bone grafting funnel products have poor versatility. Therefore, different bone grafting funnels need to be purchased for different surgeries, resulting in relatively high material and maintenance costs.

[0003] In addition, for bone grafting sites with tortuous and narrow positions, it is difficult for the bone grafting funnel to just extend to the corresponding bone grafting site, resulting in the inability to accurately fill the bone cement into the required site, leading to bone grafting deviation and failure to achieve the expected bone grafting effect. Although angled bone grafting funnels are currently available on the market, the inclination angle of such angled bone grafting funnels is fixed and cannot be adjusted in a timely manner to face different bone grafting requirements. Summary of the Invention

[0004] Based on this, it is necessary to provide a delivery device for the problems that it is difficult to accurately fill the bone cement into the required site during bone grafting and the angle cannot be adjusted according to different requirements.

[0005] A delivery device includes:

[0006] A delivery tube, which includes a first tube body and a bendable second tube body that are connected in sequence from the proximal end to the distal end;

[0007] A connecting component, arranged side by side with the delivery tube, and the distal end of the connecting component is connected to the distal end of the second tube body;

[0008] A driving component, connected to the connecting component, for driving the distal end of the connecting component to move toward the proximal end of the connecting component along the length direction of the connecting component, so as to bend the second tube body.

[0009] The above delivery device has at least the following beneficial technical effects:

[0010] In this embodiment, the bending degree of the second tube body can be easily adjusted, so that the shape of the delivery tube can be adjusted according to different bone grafting sites in different situations to be applicable to different surgeries, and there is no need to specifically purchase corresponding bone grafting funnels for different surgeries, saving material costs and maintenance costs;

[0011] When the position where bone grafting is required during a specific operation is tortuous and narrow, the bending degree of the second tube body can be adjusted at any time according to the situation so that it can just extend to the corresponding bone grafting site. Thus, the bone cement can be accurately filled into the required site, the position of bone grafting is accurate, and the expected bone grafting effect can be achieved.

[0012] In one embodiment, the delivery device further includes a funnel connected to the proximal end of the delivery tube for temporarily storing and supplying the medium to the delivery tube, and the driving component is disposed within the funnel.

[0013] In one embodiment, the driving component includes:

[0014] A drive shaft, the proximal end of the connecting component is connected to the circumferential surface of the drive shaft, so as to be wound around the drive shaft when the drive shaft rotates; a drive unit connected to the drive shaft for driving the drive shaft to rotate.

[0015] In one embodiment, the driving component includes:

[0016] A drive shaft;

[0017] A drive unit connected to the drive shaft for driving the drive shaft to rotate;

[0018] A winding shaft connected to the drive shaft through a transmission component, the proximal end of the connecting component is connected to the circumferential surface of the winding shaft, so as to be wound around the winding shaft when the winding shaft rotates.

[0019] In one embodiment, the driving component further includes a winding wheel sleeved on the winding shaft, and the connecting component is connected to the circumferential surface of the winding wheel, so as to be wound around the winding wheel when the winding shaft rotates.

[0020] In one embodiment, the driving component further includes a limiting unit, the limiting unit includes a driving end and a limiting end located at both ends in the length direction, and the limiting unit can move along the length direction and make the limiting end abut against the circumferential surface of the drive shaft, so as to limit the rotation of the drive shaft.

[0021] In one embodiment, the drive unit includes a dial wheel sleeved on the drive shaft.

[0022] In one embodiment, the transmission component includes a first gear sleeved on the drive shaft and a second gear sleeved on the winding shaft, and the second gear meshes with the second gear.

[0023] In one embodiment, through holes are formed in the delivery tube for communicating the inner and outer surfaces of the tube wall.

[0024] In one embodiment, there are more than two through holes, and the plurality of through holes are spirally distributed along the length direction of the delivery pipe on the delivery pipe; the distance between one end of the through hole exposing the inner surface of the pipe wall and the distal end of the delivery pipe is less than the distance between one end of the through hole exposing the outer surface of the pipe wall and the distal end of the delivery pipe.

[0025] In one embodiment, the connecting member is disposed in a channel formed along the length direction within the pipe wall of the delivery pipe.

[0026] In one embodiment, the connecting member includes a connecting rope.

[0027] In one embodiment, the connecting member further includes:

[0028] A guiding support body, disposed on the circumferential surface of the first pipe body, for the connecting rope to pass through and form a gap between the connecting rope and the second pipe body, so as to provide guiding support for the movement of the connecting rope;

[0029] A fixing body, disposed on the circumferential surface of the distal end of the second pipe body, and the distal end of the connecting rope is disposed on the fixing body. Description of the Drawings

[0030] Figure 1 It is a schematic structural diagram of a delivery device provided by an embodiment of the present invention;

[0031] Figure 2 is Figure 1 An enlarged view of the cooperative installation of the driving member and the funnel in the delivery device;

[0032] Figure 3 is Figure 1 A schematic diagram of the driving member in the delivery device;

[0033] Figure 4 A schematic diagram of the driving member in another embodiment;

[0034] Figure 5 is Figure 1 A schematic structural diagram of the delivery pipe in the delivery device;

[0035] Figure 6 is Figure 1 A schematic structural diagram of the second pipe body in the delivery device;

[0036] Figure 7 is Figure 1 A bending state diagram of the delivery device;

[0037] In the figure, 100, delivery pipe; 101, through hole; 102, channel; 110, first pipe body; 120, second pipe body;

[0038] 200, connecting component; 210, connecting rope; 220, guiding support; 230, fixing body

[0039] 300, driving component; 310, driving shaft; 311, first gear; 320, driving unit; 321, dial; 330, winding shaft; 331, second gear; 340, winding wheel; 350, limiting unit; 351, driving end; 352, limiting end

[0040] 400, funnel; 410, baffle Detailed implementation manners

[0041] The present invention will be further described below with reference to the accompanying drawings

[0042] For the convenience of understanding the present invention, various embodiments defined by the claims of the present invention will be described more comprehensively below with reference to the relevant drawings. The drawings show preferred embodiments of the present invention, which include various specific details to facilitate the understanding, but these details should be regarded as merely exemplary. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Accordingly, those of ordinary skill in the art will recognize that changes and improvements can be made to the various embodiments described herein without departing from the scope of the present invention defined by the appended claims. In addition, for the sake of clarity and conciseness, the description of well-known functions and structures may be omitted

[0043] It is obvious to those skilled in the art that the following description of the various embodiments of the present invention is for the purpose of explanation only and not for limiting the present invention defined by the appended claims

[0044] Throughout the description and claims of this application document, the words "comprising" and "including" and variations of the words, such as "comprising of" and "including", mean "including but not limited to", and are not intended to (and will not) exclude other components, wholes or steps. Features, wholes or characteristics described in connection with specific aspects, embodiments or examples of the present invention will be understood to be applicable to any other aspect, embodiment or example described herein, unless incompatible therewith

[0045] It should be understood that the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. In the present invention, the expressions "comprising" and / or "may comprise" are intended to indicate the presence of corresponding functions, operations, or elements, and are not intended to limit the presence of one or more functions, operations, and / or elements. In addition, in the present invention, the terms "comprising" and / or "having" are intended to indicate the presence of the characteristics, quantities, operations, elements, and components disclosed in the application documents, or combinations thereof. Therefore, the terms "comprising" and / or "having" should be understood to imply the additional possibility of the presence of one or more other characteristics, quantities, operations, elements, and components, or combinations thereof.

[0046] In the present invention, the expression "or" includes any and all combinations of the words listed together. For example, "A or B" may include A or B, or may include both A and B.

[0047] It should be understood that when an element is referred to as "fixed to" another element, it may be directly on the other element or there may also be an intermediate element; when an element is considered to be "connected" or "coupled" to another element, it may be directly connected or coupled to the other element or there may be an intermediate element present simultaneously.

[0048] The "upper", "lower", "left", "right", etc. mentioned in the text are only used to represent the relative positional relationship. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this invention belongs. It should also be understood that terms (such as those defined in a common dictionary), should be interpreted as having a meaning consistent with the relevant field and the context of this specification, and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0050] As Figures 1 - 3 shown, in one embodiment of the present invention, a conveying device is provided, comprising:

[0051] A conveying pipe 100, the conveying pipe 100 comprising a first pipe body 110 and a bendable second pipe body 120 connected in sequence from the proximal end to the distal end;

[0052] A connecting member 200, arranged side by side with the conveying pipe 100, and the distal end of the connecting member 200 being connected to the distal end of the second pipe body 120;

[0053] The driving component 300 is connected to the connecting component 200 and is used to drive the distal end of the connecting component 200 to move toward the proximal end of the connecting component 200 along the length direction of the connecting component 200 (i.e., the extending direction of the connecting component 200), so as to bend the second tube body 120.

[0054] As used herein, the "proximal end" refers to the end close to the surgical operator and far from the patient, and the "distal end" refers to the end far from the surgical operator and close to the patient. The "arranged side by side" described herein means that the connecting component 200 and the delivery tube 100 extend in substantially the same direction (the axial direction of the delivery tube 100) and occupy substantially the same position in the extending direction. The second tube body 120 is a deformable flexible tube to facilitate bending.

[0055] Specifically, when applying the present invention to the bone grafting operation, the distal end of the delivery tube 100 is sent into the human body part where bone cement needs to be filled. During the sending process, the driving component 300 is operated according to the position of the bone grafting part to drive the distal end of the connecting component 200 to move toward the proximal end of the connecting component 200 along the length direction of the connecting component 200, thereby bending the second tube body 120, so as to adjust the distal inclination angle by changing the bending arc of the second tube body 120 of the delivery tube 100. When the distal inclination angle is adjusted and just opposite to the bone grafting part, bone cement is delivered to the distal end through the delivery tube 100. Further, preferably, the bending of the second tube body 120 is reversible, that is, in the bent state, the distal end of the connecting component 200 can also be driven to move toward the distal end of the connecting component 200 along the length direction of the connecting component 200, so that the adjustment freedom of the distal inclination angle is greater, and it is also convenient for the repeated use of the delivery device.

[0056] In this embodiment, the bending degree of the second tube body 120 can be easily adjusted, so that the shape of the delivery tube 100 can be adjusted according to different bone grafting parts in different situations to be suitable for different surgeries, and there is no need to specifically purchase the corresponding bone grafting funnel 400 for different surgeries, saving material costs and maintenance costs;

[0057] When the position where bone grafting is required in a specific surgery is tortuous and narrow, the bending degree of the second tube body 120 can be adjusted at any time according to the situation to just extend to the corresponding bone grafting part, so that the bone cement can be accurately filled into the required part, the position of the bone grafting is accurate, and the expected bone grafting effect can be achieved.

[0058] Reference Figure 1 and Figure 2 In some embodiments, the delivery device further includes a funnel 400 connected to the proximal end of the delivery tube 100 for temporarily storing and supplying a medium to the delivery tube 100, and the driving component 300 is disposed in the funnel 400.

[0059] The funnel 400 in this embodiment can temporarily store and supply the medium to the conveying pipe 100. Before operation, adding some bone cement into the funnel 400 can convey the bone cement to the distal end through the conveying pipe 100, and there is no need to continuously pour bone cement into the conveying pipe 100; the driving component 300 can be arranged in the space separated by the baffle 410 in the funnel 400, which can save the layout space, and the space inside the funnel 400 can provide effective protection for the driving component 300.

[0060] Of course, in some other embodiments, the funnel may not be included, and the medium is directly output to the distal end through the conveying pipe 100, which is not limited here.

[0061] Reference Figure 3 , in some embodiments, the driving component 300 includes:

[0062] A driving shaft 310;

[0063] A driving unit 320, connected to the driving shaft 310, for driving the driving shaft 310 to rotate;

[0064] A winding shaft 330, connected to the driving shaft 310 through a transmission component, and the proximal end of the connecting component 200 is connected to the circumferential surface of the winding shaft 330, so as to be wound on the winding shaft 330 in the same direction when the winding shaft 330 rotates. Preferably, the winding shaft 330 and the driving shaft 310 are arranged side by side, so that the structure of the driving component 300 is simpler, more reliable and more compact. Herein, the "arranged side by side" means that the winding shaft 330 and the driving shaft 310 extend in substantially the same direction (the axial direction of the driving shaft 310) and occupy substantially the same position in the extending direction.

[0065] Specifically, both ends of the driving shaft 310 and the winding shaft 330 can be rotatably installed in the funnel 400 through bearings respectively. Operating the driving unit 320 to rotate, the driving unit 320 drives the driving shaft 310 to rotate around the axis. Under the action of the transmission component, the driving force is transmitted to the winding shaft 330 and drives the winding shaft 330 to rotate, and then the connecting component 200 is wound on the circumferential surface of the winding shaft 330. As the connecting component 200 is continuously wound, the distal end of the connecting component 200 moves towards the proximal end of the connecting component 200 along the length direction of the connecting component 200, gradually bending the second pipe body 120 and changing the inclination angle of the distal end.

[0066] In this embodiment, the winding shaft 330 is connected to the drive shaft 310 through a transmission member. The transmission member has a specific transmission ratio, which can prevent the drive shaft 310 from driving the connecting member 200 too fast or too slow when directly driving, thus affecting the accuracy of normal adjustment. In actual situations, different transmission ratios can be selected according to needs, so that the winding shaft 330 has the required rotational speed to meet the requirements of precise adjustment, and the driving stability is relatively good.

[0067] In this embodiment, the cooperation between the winding shaft 330 and the drive shaft 310 can reduce the installation length of the entire drive component 300 in the length direction of the drive shaft 310. Especially when the drive component 300 is arranged inside the funnel 400, a great deal of installation space can be saved. It can be understood that in some embodiments, the winding shaft 330 may not be provided, and the drive shaft 310 directly drives the connecting member 200.

[0068] Reference Figure 4 , in some other embodiments, the drive component 300 further includes a winding wheel 340 sleeved on the winding shaft 330, and the connecting member 200 is connected to the circumferential surface of the winding wheel 340, so that when the winding shaft 330 rotates, it winds around the winding wheel 340.

[0069] In this embodiment, the winding wheel 340 has a relatively large diameter. When the distal end of the connecting member 200 moves the same distance, compared with directly winding on the circumferential surface of the winding shaft 330, the number of turns of the connecting member 200 wound on the winding wheel 340 is less, avoiding the connecting member 200 from being entangled with each other and unable to be used normally after multiple turns of winding.

[0070] After the inclination angle of the distal end of the delivery tube 100 in this embodiment is adjusted, the second tube body 120 is in a bent state, and elastic potential energy is accumulated inside it, having a tendency to return to its initial form. Once it freely returns to its form, the distal end of the delivery tube 100 is no longer opposite to the bone grafting site, and the bone cement cannot be accurately filled into the required site, resulting in the deviation of the bone grafting position and the failure to achieve the expected bone grafting effect. Reference Figure 3 , in some embodiments, the drive component 300 further includes a limiting unit 350. The limiting unit 350 includes a driving end 351 and a limiting end 352 located at both ends in the length direction. The limiting unit 350 can move along the length direction and make the limiting end 352 abut against the circumferential surface of the drive shaft 310, thereby restricting the rotation of the drive shaft 310. The length direction here refers to the length direction of the limiting unit 350, and this direction forms an angle with the rotation axis of the drive shaft 310, preferably perpendicular to the rotation axis of the drive shaft 310.

[0071] Specifically, when the bending curvature and the distal inclination angle of the second tube body 120 are adjusted to the right position, the driving end 351 can be manually operated to push the limiting unit 350 to move toward the driving shaft 310 along the length direction. When the limiting end 352 abuts against the circumferential surface of the driving shaft 310, the free circumferential rotation of the driving shaft 310 can be limited.

[0072] In this embodiment, the limiting unit 350 can effectively prevent the driving shaft 310 from rotating freely after the inclination angle of the distal end of the delivery tube 100 is adjusted to the right position, thereby preventing the second tube body 120 from freely restoring its shape, ensuring that the bone cement is accurately filled into the required position and the bone grafting position is accurate, thereby achieving the expected operating effect.

[0073] refer to Figure 3 In some embodiments, the limiting unit 350 includes a limiting screw, which is pre-threaded and positioned on a mounting plate. The limiting screw can be rotated to move along the length direction and thereby tighten the driving shaft 310.

[0074] Of course, in addition to the limit screw, other types of components such as knob plungers can also be used. By operating the knob plunger to rotate, the circumferential surface of the drive shaft 310 can be supported to prevent it from rotating freely.

[0075] refer to Figure 3 In some embodiments, the driving unit 320 includes a dial wheel 321, which is sleeved on the driving shaft 310. Specifically, the dial wheel 321 can be manually turned to drive the driving shaft 310 to rotate, and the operation is simple and easy to implement. Further, when the dial wheel 321 is arranged inside the funnel 400, the circumferential surface of the dial wheel 321 can be partially exposed from the surface of the funnel 400, so that it is convenient to operate the dial wheel 321 from the outside, and the operation is more convenient and flexible.

[0076] refer to Figure 3 In some embodiments, the transmission component includes a first gear 311 sleeved on the driving shaft 310 and a second gear 331 sleeved on the winding shaft 330 , and the second gear 331 is meshed with the second gear 331 .

[0077] In this embodiment, the circumferential surface of the winding shaft 330 meshes with the circumferential surface of the driving shaft 310 , and the transmission of the driving force of the driving shaft 310 can be achieved by meshing the second gear 331 with the second gear 331 .

[0078] Of course, in some other embodiments, the driving component 300 may be a transmission chain or a transmission belt mounted on the driving shaft 310 and the winding shaft 330 , which is not limited here.

[0079] The bone grafting channel 102 of the traditional bone grafting funnel 400 is usually very long. If the air in the channel 102 cannot be smoothly discharged during the bone grafting process, it will cause the bone cement not to be smoothly injected; and the bone grafting channel 102 is a slender hole, which is very difficult to thoroughly clean after the operation. Refer to Figure 5 , in some embodiments, a through hole 101 for communicating the inner and outer surfaces of the pipe wall is provided on the delivery pipe 100.

[0080] Specifically, during the process of delivering bone cement to the bone grafting site by the delivery pipe 100, air can be discharged outwards in real time through the through hole 101, so as to avoid excessive gas accumulation inside the delivery pipe 100, and the gas pressure inside the delivery pipe 100 will not increase significantly, which is beneficial to the continuous injection of bone cement and the full filling of the bone grafting site, and can achieve a good bone grafting effect.

[0081] In this embodiment, by providing the through hole 101 on the side wall of the delivery pipe 100, when cleaning water is introduced into the delivery pipe 100 after the subsequent operation is completed, the through hole 101 can also be used as a sewage discharge hole, and the water flow can be continuously discharged outwards in time, which can ensure the continuous progress of the flushing process and improve the cleaning effect.

[0082] Furthermore, there are more than two through holes 101, and the plurality of through holes 101 are spirally distributed along the length direction of the delivery pipe 100 on the delivery pipe 100. After adopting this setting form, the through holes 101 are comprehensively distributed on the delivery pipe 100, and the air inside the delivery pipe 100 and the sewage after cleaning can be comprehensively and timely discharged through each of the through holes 101 distributed in the length direction of the delivery pipe 100 and in the direction around the circumferential surface of the delivery pipe 100, which improves the discharge speed of the gas and the water flow and discharges more thoroughly, is beneficial to the continuous injection of bone cement and cleaning water, and thus can ensure stable bone grafting and cleaning effects.

[0083] Even further, the distance H1 between the end of the through hole 101 exposed on the inner surface of the pipe wall and the distal end of the delivery pipe 100 is less than the distance H2 between the end of the through hole 101 exposed on the outer surface of the pipe wall and the distal end of the delivery pipe 100. Here, the distance H1 refers to the distance between the geometric center of the opening shape of the through hole 101 on the inner surface of the pipe wall and the distal end of the delivery pipe 100, and the distance H2 refers to the distance between the geometric center of the opening shape of the through hole 101 on the outer surface of the pipe wall and the distal end of the delivery pipe 100.

[0084] Specifically, since the distance H1 between the end of the through hole 101 exposing the inner surface of the pipe wall and the distal end of the delivery pipe 100 is less than the distance H2 between the end of the through hole 101 exposing the outer surface of the pipe wall and the distal end of the delivery pipe 100, when the delivery pipe 100 is vertically arranged, the end of the through hole 101 exposing the inner surface of the pipe wall is lower than the end of the through hole 101 exposing the outer surface of the pipe wall, that is, as Figure 5 shown, the through hole 101 is inclined upward from the inside to the outside. Therefore, during the process of filling bone cement into the bone grafting site by using the delivery pipe 100, the bone cement inside the delivery pipe 100 will not overflow outward through the through hole 101, thereby ensuring the normal progress of the filling operation, saving bone cement, and also ensuring the cleanliness of the operation.

[0085] Reference Figure 5 , in some embodiments, the connecting component 200 is arranged in a channel 102 formed along the length direction inside the pipe wall of the delivery pipe 100.

[0086] In this embodiment, arranging the connecting component 200 inside the pipe wall of the delivery pipe 100 can make full use of the internal space of the delivery pipe 100, will not increase the width of the delivery device, has less resistance when entering the human body, and is arranged inside the pipe wall of the delivery pipe 100 without the need for additional fixation; when adjusting inside the human body, the connecting component 200 moves inside the delivery pipe 100 without contacting human tissues and will not cause discomfort.

[0087] Of course, in some other embodiments, the connecting component 200 can be arranged outside the delivery pipe 100, but the connecting component 200 needs additional fixation, will also occupy the external space of the delivery pipe 100, increase the width of the delivery device, and increase the resistance when entering the human body; and when adjusting inside the human body, moving along the surface of the delivery pipe 100 will cause obvious discomfort and may affect the hand holding.

[0088] Reference Figure 3 , in some embodiments, the connecting component 200 includes a connecting rope 210. Further, preferably, the number of the connecting ropes 210 is two or more. The connection force of multiple connecting ropes 210 is stronger, which can avoid fracture failure and extend the service life.

[0089] Furthermore, preferably, the connecting rope 210 is a steel wire rope. The steel wire rope has high strength and can avoid being broken due to excessive force.

[0090] Reference Figure 6 , in some embodiments, the connecting component 200 further includes:

[0091] The guiding support 220 is provided on the circumferential surface of the first tube body 110 for the connecting rope 210 to pass through and form a gap between the connecting rope 210 and the second tube body 120, so as to provide guiding support for the movement of the connecting rope 210;

[0092] The fixing body 230 is provided on the circumferential surface of the distal end of the second tube body 120, and the distal end of the connecting rope 210 is provided on the fixing body 230.

[0093] Specifically, the guiding support 220 can provide guiding support for the movement of the connecting rope 210. Since a gap is formed between the connecting rope 210 and the second tube body 120, when the connecting rope 210 is operated to move along the length direction to bend the second tube body 120, the connecting rope 210 will not contact the second tube body 120, thus ensuring smooth operation; it can also avoid wear caused by their contact and relative movement, and prolong the service life.

[0094] Reference Figure 6 , in some embodiments, the second tube body 120 includes a corrugated tube. The corrugated tube has strong deformation and recovery capabilities and can maintain the patency of the lumen in the bent state. Further, the corrugated tube is made of a flexible polymer material and can maintain the initial shape stable under multiple bending conditions, can be operated repeatedly, and prolongs the service life. It is easy to understand that in addition to the corrugated tube, gooseneck tubes, snake tubes, etc. can also be used, as long as the lumen can be kept unobstructed during deformation, any well-known pipe material can be used.

[0095] In the above embodiments, the delivery device of the present invention is described by taking the delivery of bone cement to the human body as an example. In some other embodiments, various other substances can be delivered by using the delivery device according to actual needs, which is not limited herein.

[0096] In the above description, although terms such as "first" and "second" may be used to describe various elements of the present invention, they are not intended to limit the corresponding elements. For example, the above terms are not intended to limit the order or importance of the corresponding elements. The above terms are used to distinguish one component from another.

[0097] The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular expressions include plural expressions unless there are significant differences in context and scheme.

[0098] The above description is only an exemplary embodiment of the present invention and is not used to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

[0099] Those skilled in the art can understand that the technical features of the above-described embodiments can be omitted, added, or combined in any way. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, and as long as the simple transformation methods that can be thought of by those skilled in the art and the solutions for making adaptive and functional structural transformations to the prior art are within the scope described in this specification.

[0100] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that although the present invention has been shown and described with reference to various embodiments, for those of ordinary skill in the art, without departing from the concept of the present invention, several various deformations and improvements in form and details can still be made without departing from the scope of the present invention defined by the appended claims. These all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A bone cement delivery device, characterized in that, it comprises: a delivery tube, the delivery tube includes a first tube body and a bendable second tube body connected in sequence from the proximal end to the distal end, and through holes for communicating the inner and outer surfaces of the tube wall are provided on the delivery tube; there are more than two of the through holes, and the plurality of through holes are spirally distributed on the delivery tube along the length direction of the delivery tube; the distance between one end of the through hole exposed on the inner surface of the tube wall and the distal end of the delivery tube is less than the distance between one end of the through hole exposed on the outer surface of the tube wall and the distal end of the delivery tube, and the air and the cleaned sewage in the delivery tube can be discharged in all the through holes distributed along the length direction of the delivery tube and in the direction of surrounding the circumferential surface of the delivery tube in a comprehensive and timely manner, and during the process of filling bone cement into the bone grafting site by using the delivery tube, the bone cement inside the delivery tube will not overflow outward through the through holes; a connecting component, arranged side by side with the delivery tube, and the distal end of the connecting component is connected to the distal end of the second tube body; a driving component, connected to the connecting component, and used for driving the distal end of the connecting component to move toward the proximal end of the connecting component along the length direction of the connecting component, so as to bend the second tube body.

2. The bone cement delivery device according to claim 1, characterized in that, the bone cement delivery device further includes a funnel, connected to the proximal end of the delivery tube, for temporarily storing and supplying a medium to the delivery tube, and the driving component is arranged in the funnel.

3. The bone cement delivery device according to claim 1, characterized in that, the driving component includes: a driving shaft, the proximal end of the connecting component is connected to the circumferential surface of the driving shaft, so as to be wound around the driving shaft when the driving shaft rotates; a driving unit, connected to the driving shaft, and used for driving the driving shaft to rotate.

4. The bone cement delivery device according to claim 1, characterized in that, the driving component includes: a driving shaft; a driving unit, connected to the driving shaft, and used for driving the driving shaft to rotate; a winding shaft, connected to the driving shaft through a transmission component, and the proximal end of the connecting component is connected to the circumferential surface of the winding shaft, so as to be wound around the winding shaft when the winding shaft rotates.

5. The bone cement delivery device according to claim 4, characterized in that, the driving component further includes a winding wheel, sleeved on the winding shaft, and the connecting component is connected to the circumferential surface of the winding wheel, so as to be wound around the winding wheel when the winding shaft rotates.

6. The bone cement delivery device according to claim 3 or 4, characterized in that, the driving component further includes a limiting unit, the limiting unit includes a driving end and a limiting end located at both ends in the length direction, and the limiting unit can move along the length direction and make the limiting end abut against the circumferential surface of the driving shaft, so as to limit the rotation of the driving shaft.

7. The bone cement delivery device according to claim 3 or 4, characterized in that, the driving unit includes a dial wheel, sleeved on the driving shaft.

8. The bone cement delivery device according to claim 4, characterized in that, The transmission component includes a first gear sleeved on the drive shaft and a second gear sleeved on the winding shaft, and the second gear meshes with the second gear.

9. The bone cement delivery device according to claim 1, wherein, the connecting component is arranged in a channel formed along the length direction in the pipe wall of the delivery pipe.

10. The bone cement delivery device according to claim 1, wherein, the connecting component includes a connecting rope.

11. The bone cement delivery device according to claim 10, wherein, the connecting component further includes: a guiding support body arranged on the circumferential surface of the first pipe body for the connecting rope to pass through and form a gap between the connecting rope and the second pipe body, so as to provide guiding support for the movement of the connecting rope; a fixing body arranged on the circumferential surface of the distal end of the second pipe body, and the distal end of the connecting rope is arranged on the fixing body.

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