CN112353527A

CN112353527A - Bone grafting assembly and bone grafting funnel thereof

Info

Publication number: CN112353527A
Application number: CN202011189968.5A
Authority: CN
Inventors: 廖小红; 胡争波; 周荣; 李文虎
Original assignee: Shaoguan First People's Hospital; Bioisland Laboratory
Current assignee: Shaoguan First People's Hospital; Bioisland Laboratory
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-02-12

Abstract

The invention relates to a bone grafting assembly and a bone grafting funnel thereof, wherein the bone grafting funnel comprises a funnel body with a containing cavity and a flow guide pipe communicated with the funnel body, the funnel body is provided with a first opening, and one end of the funnel body close to the first opening is contracted towards the center of the first opening to form a closing structure. Because the distance from the second side wall to the first central axis of the first opening increases progressively along the direction close to the first opening, the bone particles entering the accommodating cavity can smoothly fall into the guide pipe. And, because the first lateral wall subtracts progressively to the distance of first open-ended the central axis along with being close to first opening direction to make the funnel body be close to first open-ended one end and shrink towards first open-ended center and form binding off structure, even will plant the bone funnel and carried out the slope at the operation in-process, first lateral wall also can retrain and the bearing to the bone grain that holds the intracavity, avoids the bone grain to drop out from first opening part, guarantees that the bone grain can not receive the pollution, avoids taking place medical accident.

Description

Bone grafting assembly and bone grafting funnel thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to a bone grafting assembly and a bone grafting funnel thereof.

Background

With the continuous innovation of medical technology, various medical instruments are developed. The utilization of special medical instruments not only can improve the success rate of various operations, but also is beneficial to relieving the pain of patients and helping the recovery of the patients. For example, when bone grafting is needed to be carried out on a bone defect of a patient in the operation process, the bone grafting can be assisted by the bone grafting funnel. The problem that bone particles fall easily appears when the bone grafting funnel needs to incline to use in the use process, especially when the bone grafting funnel. Traditional solution sets up the lid for the feed inlet department at the bone grafting funnel, seals the feed inlet through the lid in order to avoid the bone grain to drop, and traditional solution can lead to the bone grain to add inconveniently, is difficult for observing the surplus of bone granule and the position of bone granule in the funnel.

Disclosure of Invention

In view of the above, there is a need to provide a bone grafting assembly and a bone grafting funnel thereof.

The technical scheme is as follows:

in one aspect, a bone grafting funnel is provided, including having the funnel body that holds the chamber, and with the funnel body intercommunication is used for guiding the honeycomb duct that bone grain was implanted, the funnel body be equipped with hold the first opening of chamber intercommunication, the funnel body is close to the one end orientation of first opening first open-ended center shrink and form the binding off structure.

The bone grafting funnel of above-mentioned embodiment, during the use, insert the honeycomb duct in the affected part after, put into the bone grain through first opening and hold the intracavity to make the bone grain drop to and hold the honeycomb duct of chamber intercommunication in, insert the honeycomb duct after passing first opening with the impeller again and holding the chamber in, the promotion impeller that lasts, thereby can be with bone grain propelling movement to affected part. Simultaneously, because the distance of second lateral wall to the first central axis of first opening increases progressively along with being close to first opening direction to make the bone grain that gets into and hold the intracavity can be smooth and easy drop to in the tuber pipe. And, because the first lateral wall subtracts progressively to the first central axis's of first open-ended distance along with being close to first open-ended direction to make the funnel body be close to first open-ended one end and shrink towards first open-ended center and form binding off structure, even will plant the bone funnel and carried out the slope at the operation in-process, first lateral wall also can retrain and the bearing to the bone grain that holds the intracavity, avoid the bone grain to drop out from first opening part, guarantee that the bone grain can not receive the pollution, avoid taking place medical accident. And, when the whole level of bone grafting funnel was placed, under the restraint of first lateral wall, the bone grain also can be reliably, stable place hold the intracavity, also be difficult for falling out from first opening part. In addition, compare traditional form of establishing the lid that adds, first opening part is in open state constantly, can carry out the interpolation of bone grain in real time, also conveniently observes the surplus and the position of bone grain in the funnel that hold intracavity bone grain, convenient to use can not influence the impeller yet and stretch into and hold the intracavity, even the impeller also can be convenient when being located the bone grafting funnel at the bone grafting in-process impeller adds the bone grain, need not to take out the impeller and add the bone grain again, saves the operation time.

The technical solution is further explained below:

in one embodiment, the funnel body includes a first side wall and a second side wall connected to each other, the first side wall is disposed opposite to the second side wall and encloses the accommodating cavity with the first opening, the first side wall is provided with the first opening, the second side wall is provided with a second opening, and the flow guide pipe is communicated with the second opening.

In one embodiment, the distance from the first sidewall to the first central axis of the first opening decreases in a direction approaching the first opening to form the closing-in structure.

In one embodiment, the distance from the second side wall to the first central axis of the first opening increases in the direction of approaching the first opening.

In one embodiment, the accommodating cavity comprises a first accommodating cavity located on one side of the first central axis of the first opening and a second accommodating cavity located on the other side of the first central axis of the first opening.

In one embodiment, the second central axis of the draft tube is spaced apart from the first central axis of the first opening.

In one embodiment, the outer wall of the guide pipe is provided with a first scale.

In one embodiment, one end of the draft tube, which is far away from the funnel body, is provided with a first notch which is obliquely arranged relative to the horizontal plane.

In one embodiment, an end of the flow guide pipe far away from the funnel body is provided with an elbow pipe which is obliquely arranged relative to the flow guide pipe, the elbow pipe is communicated with the flow guide pipe, and an end of the elbow pipe far away from the flow guide pipe is provided with a third opening.

In one embodiment, the draft tube is in arc transition connection with the elbow.

On the other hand, the bone grafting assembly comprises a pushing piece and the bone grafting funnel, wherein one end of the pushing piece can penetrate through the funnel body and then extend into the flow guide pipe, and can reciprocate along the length direction of the flow guide pipe.

The bone grafting assembly of above-mentioned embodiment inserts the honeycomb duct in the affected part, puts into the funnel body with the bone grain for in the bone grain gets into the honeycomb duct, insert the honeycomb duct after passing the funnel body with the impeller again, through the tip of impeller to the impetus of bone grain, thereby smooth with bone grain propelling movement to the affected part in order to fill the affected part. After the impeller once promoted the completion, can extract the impeller from the guiding pipe for in the bone grain gets into the guiding pipe once more, insert the impeller again in the guiding pipe, can push away the bone grain to the affected part once more, thereby can fill the bone grain of capacity to the affected part as required.

In one embodiment, the outer wall of the pusher is provided with a second scale.

In one embodiment, the other end of the pushing member is provided with a hand-held portion.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a bone grafting assembly according to an embodiment;

fig. 2 is a schematic structural view of a bone grafting funnel of the bone grafting assembly of fig. 1.

Description of reference numerals:

10. bone grafting assembly, 100, bone grafting funnel, 110, funnel body, 111, hold the chamber, 1111, first cavity of holding, 1112, second cavity of holding, 112, first lateral wall, 113, second lateral wall, 114, first opening, 1141, first central axis, 115, second opening, 120, honeycomb duct, 121, second central axis, 122, first scale, 123, first incision, 200, impeller, 210, second scale, 220, handheld portion, 230, limit flange.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1 and 2, in one embodiment, a bone implant assembly 10 is provided for use in implanting bone particles into a site during a bone grafting procedure. Wherein, the bone grafting assembly 10 comprises a pushing member 200 and a bone grafting funnel 100. Thus, the bone particles are put into the bone grafting funnel 100, and are pushed to the affected part from the bone grafting funnel 100 by the pushing action of the pushing member 200.

As shown in fig. 1, in particular, one end of the pushing member 200 can penetrate through the funnel body 110 and then extend into the flow guide tube 120, and can reciprocate along the length direction (as shown in the direction a of fig. 1) of the flow guide tube 120. So, insert the honeycomb duct 120 the affected part, put into funnel body 110 with the bone grain for in the bone grain gets into honeycomb duct 120, insert honeycomb duct 120 behind funnel body 110 with impeller 200 again, through the tip of impeller 200 to the impetus of bone grain, thereby smooth with bone grain propelling movement to the affected part in order to fill the affected part. After the pushing member 200 pushes once, the pushing member 200 can be pulled out from the drainage tube 120, so that the bone particles enter the drainage tube 120 again, the pushing member 200 is inserted into the drainage tube 120 again, the bone particles can be pushed to the affected part again, and the bone particles in sufficient quantity can be filled to the affected part as required.

As shown in fig. 2, in one embodiment, a bone grafting funnel 100 is provided, which includes a funnel body 110 and a delivery tube 120 for guiding bone particles to be implanted. The funnel body 110 has an accommodating cavity 111, the funnel body 110 is provided with a first opening 114 communicated with the accommodating cavity 111, and one end of the funnel body 110 close to the first opening 114 is contracted towards the center of the first opening 114 to form a closing structure.

Specifically, the funnel body 110 includes a first sidewall 112 and a second sidewall 113 that are connected to each other. The first side wall 112 and the second side wall 113 enclose a receiving cavity 111 having a first opening 114, and the first side wall 112 and the second side wall 113 are disposed opposite to each other. The first sidewall 112 is provided with a first opening 114, the second sidewall 113 is provided with a second opening 115, and the draft tube 120 is communicated with the second opening 115. Preferably, the distance from the first sidewall 112 to the first central axis 1141 of the first opening 114 (e.g., L in FIGS. 1 and 2) is along a direction close to the first opening 114 (e.g., B in FIG. 2)₂Shown) are progressively decreased to form a closed-off structure; a distance (e.g., L in FIGS. 1 and 2) from the second sidewall 113 to a first central axis 1141 of the first opening 114 along a direction approaching the first opening 114₁Shown) is incremented.

The bone grafting funnel 100 of the above embodiment, during the use, insert the honeycomb duct 120 behind the affected part, put into the bone grain through first opening 114 and hold chamber 111 in to make the bone grain drop to and hold the honeycomb duct 120 that chamber 111 communicates, insert the honeycomb duct 120 behind passing first opening 114 and holding chamber 111 with impeller 200 again in, the promotion impeller 200 that lasts, thereby can be with bone grain propelling movement to the affected part. Meanwhile, the distance from the second sidewall 113 to the first central axis 1141 of the first opening 114 increases gradually along the direction approaching the first opening 114, so that bone particles entering the accommodating cavity 111 can smoothly fall into the flow guide tube 120. Moreover, the distance from the first sidewall 112 to the first central axis 1141 of the first opening 114 decreases progressively along the direction close to the first opening 114, so that the end of the funnel body 110 close to the first opening 114 contracts toward the center of the first opening 114 to form a closing structure, even if the bone grafting funnel 100 is inclined in the operation process, the first sidewall 112 can also constrain and support bone particles in the accommodating cavity 111, thereby preventing the bone particles from falling out of the first opening 114, ensuring that the bone particles are not polluted, and avoiding medical accidents. Moreover, when the bone grafting funnel 100 is horizontally placed as a whole, under the constraint of the first side wall 112, bone particles can be reliably and stably placed in the accommodating cavity 111, and are not easy to fall out from the first opening 114. In addition, compare the traditional form of establishing the lid that adds, first opening 114 department is in open state constantly, can carry out the interpolation of bone grain in real time, also conveniently observe the surplus of holding the intracavity 111 interior bone grain and the position of bone grain in the funnel, high durability and convenient use, can not influence impeller 200 and stretch into and hold the intracavity 111 yet, even in the bone grafting in-process impeller 200 also can be convenient when being located bone grafting funnel 100 add bone grain, need not to take out impeller 200 and add bone grain again, save operation time.

It should be noted that the funnel body 110 and the draft tube 120 may be integrally formed, or may be formed by being assembled by screwing, riveting, or the like after being separately formed; the mold is preferably integrally formed, so that the mold opening cost is saved. When the funnel body 110 is used in a vertical state, the first opening 114 is located at the uppermost position of the funnel body 110, the first sidewall 112 is located above the second sidewall 113, and the draft tube 120 is located at the lowermost position of the funnel body 110. The size of the first opening 114 can be flexibly designed according to actual conditions, and only the requirement that the bone particles conveniently enter the accommodating cavity 111 and the pushing piece 200 conveniently penetrates through the accommodating cavity 111 and then is inserted into the flow guide pipe 120 is met, so that the bone particles are prevented from leaking when the funnel is inclined or horizontally placed. Preferably the maximum width of the first opening 114 is 3-6 times the width of the pusher 200. Wherein the maximum width of the first opening 114 refers to the longest distance between two opposite spaced points in the profile of the first opening 114; when the first opening 114 is circular, the longest width refers to its diameter; when the first opening 114 is an ellipse, the longest width refers to its major axis; when the first opening 114 is rectangular, the longest width refers to the longest side length. The second opening 115 is sized to allow bone particles to enter the duct 120.

The distance from the first sidewall 112 to the first central axis 1141 of the first opening 114 decreases with the direction approaching the first opening 114, and may be in a linear decreasing manner, a straight line decreasing manner, or a curved line decreasing manner; preferably with a decreasing curve, so that the receiving cavity 111 has a larger receiving space. The distance from the second sidewall 113 to the first central axis 1141 of the first opening 114 increases with the direction approaching the first opening 114, and may be in a linear increasing manner, a straight line increasing manner or a curve increasing manner; preferably, the curve is gradually increased, so that the inner wall of the accommodating cavity 111 is smoother, and bone particles can smoothly enter the flow guide tube 120. And, the distance from the intersection of the first side wall 112 and the second side wall 113 to the first central axis 1141 is the largest, so that the receiving cavity 111 has a sufficiently large receiving space.

In order to ensure that the bone particles are not easy to fall from the accommodating cavity 111 when the bone grafting funnel 100 is inclined, and the pushing member 200 is inserted into the flow guide tube 120 so as not to influence the normal placement of the bone particles into the accommodating cavity 111, the position of the first opening 114 can be flexibly set. As shown in FIG. 2, in one embodiment, the second central axis 121 of the delivery tube 120 is spaced apart from the first central axis 1141 of the first opening 114. Thus, after the pushing member 200 is inserted into the flow guide tube 120, the third central axis (not labeled) of the pushing member 200 coincides or approximately coincides with the second central axis 121 of the flow guide tube 120, so that the third central axis of the pushing member 200 and the first central axis 1141 of the first opening 114 are arranged at intervals, and a sufficient gap or space is left on the side edge of the pushing member 200 for placing bone particles into the accommodating cavity 111, so that the problem of interference does not occur, and the problem of scattering of the bone particles in the discharging process is also ensured. The vertical distance between the second central axis 121 and the first central axis 1141 can be flexibly designed according to the actual use requirement, and the pusher 200 can be inserted into the flow guide tube 120 without affecting the normal placement of bone particles into the accommodating cavity 111.

It should be noted that the fact that the third central axis of the pusher 200 approximately coincides with the second central axis 121 of the draft tube 120 takes into account the influence of machining errors and assembly errors, and the third central axis of the pusher 200 can be considered to coincide with the second central axis 121 of the draft tube 120 within an error tolerance range.

As shown in fig. 1 and 2, the receiving cavity 111 further includes a first receiving cavity 1111 located on one side of the first central axis 1141, and a second receiving cavity 1112 located on the other side of the first central axis 1141. Preferably, the volume of first receiving cavity 1111 is greater or less than the volume of second receiving cavity 1112. For example, taking the first central axis 1141 as a boundary line, the left side of the first central axis 1141 is a first receiving cavity 1111, and the right side of the first central axis 1141 is a second receiving cavity 1112; when the volume of first holding cavity 1111 is greater than the volume of second holding cavity 1112, when funnel 100 for grafting bone inclines towards the left side, the bone grain landing in the second holding cavity 1112 is to first holding cavity 1111 in, utilizes first holding cavity 1111 to hold the bone grain, combines the restraint and the bearing of first lateral wall 112 to the bone grain, avoids the bone grain to drop away from first opening 114. Similarly, when the volume of first holding cavity 1111 is less than the volume of second holding cavity 1112, when funnel 100 for grafting bone inclines towards the right side, the bone grain landing in first holding cavity 1111 to the second holds cavity 1112 in, utilize the second to hold cavity 1112 and can hold the bone grain, combine the restraint and the bearing of first lateral wall 112 to the bone grain, also can avoid the bone grain to drop away from first opening 114. Of course, in other embodiments, the volume of the first receiving cavity 1111 may be equal to the volume of the second receiving cavity 1112, so that when the bone grafting funnel 100 is tilted, the bone particles are restrained and supported by the first sidewall 112, and the bone particles are prevented from falling out of the first opening 114.

It should be noted that, the volume of the first receiving cavity 1111 is larger than the volume of the second receiving cavity 1112, the first side wall 112 and the second side wall 113 enclosing the first receiving cavity 1111 may be extended a longer distance away from the first central axis 1141; for example, when the left side of the first central axis 1141 is the first receiving cavity 1111 and the right side of the first central axis 1141 is the second receiving cavity 1112, if the volume of the first receiving cavity 1111 is greater than the volume of the second receiving cavity 1112, the left side first sidewall 112 and the left side second sidewall 113 may extend a longer distance away from the first central axis 1141 than the right side first sidewall 112 and the right side second sidewall 113; similarly, if the volume of first receiving cavity 1111 is smaller than the volume of second receiving cavity 1112, the first and

second sidewalls

112 and 113 on the right side may extend a greater distance away from first central axis 1141 than the first and

second sidewalls

112 and 113 on the left side.

In order to avoid the secondary damage to the affected part due to the too deep insertion depth of the drainage tube 120 into the affected part and to avoid the inaccurate insertion of the drainage tube 120 into the affected part, the insertion depth of the drainage tube 120 can be measured. As shown in fig. 2, in one embodiment, the outer wall of the delivery tube 120 is provided with a first scale 122. So, through reading the reading on the first scale 122, can be simple, accurate acquire the degree of depth that honeycomb duct 120 inserted the affected part, guarantee that honeycomb duct 120 can not cause the secondary damage to the affected part, also make honeycomb duct 120's the depth of insertion suitable, can be accurate reach the affected part and guarantee the filling effect of bone grain. The first scale 122 may be a scale line or a scale groove concavely formed on the outer wall of the flow guide tube 120.

In addition, in order to facilitate insertion of the catheter 120 into the affected area, the end of the catheter 120 may be treated. As shown in fig. 1 and 2, in one embodiment, an end of the flow guide tube 120 away from the funnel body 110 is provided with a first notch 123 disposed obliquely to the horizontal plane. Thus, the end of the duct 120 far from the funnel 110 is in the shape of a bevel, so that the duct 120 can be conveniently and quickly inserted into the affected part. Especially for the crack between the bones, the first cut 123 that sets up in an inclined manner can be inserted smoothly, ensuring that the bone particles can be reliably filled to the affected part. Moreover, the end of the duct 120 far from the funnel 110 is in the shape of a bevel, which is convenient for adjusting the angle of insertion into the affected part, and is more flexible and convenient for use.

In any of the above embodiments, an end of the flow conduit 120 away from the funnel body 110 is provided with an elbow (not shown) inclined with respect to the flow conduit 120, the elbow is communicated with the flow conduit 120, and an end of the elbow away from the flow conduit 120 is provided with a third opening (not shown). Therefore, when the affected part is positioned at a more tortuous part, such as a vertebra, the bone grafting can be realized by inserting the affected part from a plurality of angles and a plurality of directions by utilizing the bent pipe, and the operation is more convenient. The bent pipe can be bent toward the left side or the right side of the flow guide pipe 120 according to actual use requirements. The elbow may be integrally formed with the duct 120, or may be separately formed and then connected by a socket or plug. Of course, a second notch (not shown) may be provided at an end of the elbow away from the flow guide tube 120, and the second notch is inclined with respect to the horizontal plane, so that the elbow can be inserted into the affected part more conveniently and quickly.

Further, the draft tube 120 is in arc transition connection with the elbow. Therefore, the bone particles in the flow guide tube 120 can be smoothly pushed into the elbow and flow out of the second opening 115 of the elbow to the affected part, so that the bone particles are prevented from being blocked or jammed at the transition position of the flow guide tube 120 and the elbow. Furthermore, the arc transition portion may be made of a flexible material, for example, a bellows structure, so that the elbow may flexibly rotate relative to the flow guide tube 120, and may be inserted into the affected area more flexibly and conveniently, and the versatility is stronger.

In order to prevent the pushing member 200 from being inserted too deeply into the duct 120 and causing secondary damage to the affected part, the insertion depth of the pushing member 200 into the duct 120 may be measured in order to quantitatively push the bone particles from the duct 120 to the affected part. As shown in FIG. 1, in one embodiment, the outer wall of the pusher member 200 is provided with a second scale 210. So, through reading the reading on the second scale 210, can be simple, accurate acquire the degree of depth that the impeller 200 inserted in the honeycomb duct 120 to can learn how many bone grains propelling movement to the affected part, and then realize quantitative bone grain and fill, avoid appearing filling inadequately or fill excessively. Wherein the second scale 210 may be a scale line or a scale groove concavely provided on an outer wall of the push member 200. The outer diameter of the pushing member 200 can be matched with the inner diameter of the flow guide tube 120, so that the pushing member 200 can smoothly reciprocate along the length direction of the flow guide tube 120, bone particles with smaller particles are prevented from being extruded from a gap between the outer part of the pushing member 200 and the inner wall of the flow guide tube 120, and the accuracy of bone particle filling is ensured.

Of course, as shown in fig. 1, in order to avoid the pushing member 200 from being inserted too deeply into the flow guide tube 120, a corresponding limiting flange 230 may be further disposed at a suitable position on the outer wall of the pushing member 200, so that the pushing member 200 cannot be further inserted into the flow guide tube 120 as the pushing member 200 is continuously inserted into the flow guide tube 120 until the limiting flange 230 abuts against the side wall of the flow guide tube 120, thereby limiting the insertion depth of the pushing member 200. In addition, in order to ensure that the pushing member 200 can better push bone particles, a corresponding sliding block can be arranged at the end of the pushing member 200 inserted into the flow guide tube 120, and the pushing member 200 can drive the sliding block to move when moving, so that the bone particles are pushed to the affected part. In addition, to ensure that bone particles are completely expelled from the delivery tube 120, the length of the pusher 200 below the stop flange 230 may be equal to the length of the delivery tube 120.

As shown in fig. 1, in order to facilitate the pushing operation of the pushing member 200, a handle 220 may be provided at the other end of the pushing member 200. Thus, when the pushing member 200 needs to be pushed, the user only needs to hold the holding portion 220 to simply and conveniently apply the acting force to the pushing member 200, so that the pushing member 200 can be moved conveniently. The hand-held portion 220 may be in the form of a handle or a handle, and only needs to be held and operated conveniently. Certainly, in order to avoid the occurrence of slipping in the operation process, corresponding anti-slip threads can be arranged on the handle or the hand lever or a corresponding anti-slip sleeve can be sleeved on the handle or the hand lever, so that the reliability and the accuracy of the movement of the pushing piece 200 are ensured.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

It should also be understood that in explaining the connection relationship or the positional relationship of the elements, although not explicitly described, the connection relationship and the positional relationship are interpreted to include an error range which should be within an acceptable deviation range of a specific value determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, without limitation.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The bone grafting funnel is characterized by comprising a funnel body with a containing cavity and a flow guide pipe communicated with the funnel body and used for guiding bone particles to be implanted, wherein the funnel body is provided with a first opening communicated with the containing cavity, and one end, close to the first opening, of the funnel body shrinks towards the center of the first opening to form a closing structure.

2. The bone grafting funnel according to claim 1, wherein the funnel body comprises a first side wall and a second side wall connected to each other, the first side wall is disposed opposite to the second side wall and encloses the accommodating cavity having the first opening, the first side wall is provided with the first opening, the second side wall is provided with a second opening, and the flow guide tube is communicated with the second opening.

3. The bone grafting funnel of claim 2, wherein the distance from the first sidewall to the first central axis of the first opening decreases in a direction approaching the first opening to form the closed structure.

4. The bone grafting funnel according to any one of the preceding claims, wherein the distance from the second side wall to the first central axis of the first opening increases in a direction approaching the first opening.

5. The bone grafting funnel according to any one of the preceding claims, wherein the receiving cavity comprises a first receiving cavity located on one side of the first central axis of the first opening and a second receiving cavity located on the other side of the first central axis of the first opening.

6. The bone grafting funnel according to any one of the preceding claims, wherein the second central axis of the delivery tube is spaced from the first central axis of the first opening.

7. The bone grafting funnel according to any one of the preceding claims, wherein the outer wall of the flow guide tube is provided with a first scale.

8. The bone grafting funnel according to any one of the preceding claims, wherein the end of the flow guide tube away from the funnel body is provided with a first notch arranged obliquely with respect to the horizontal plane.

9. A bone grafting assembly, comprising a pusher and a bone grafting funnel according to any one of claims 1 to 8, wherein one end of the pusher is capable of penetrating through the funnel body and then extending into the flow guide tube, and is capable of reciprocating along the length direction of the flow guide tube.

10. The bone graft assembly of claim 9, wherein the outer wall of the pusher member is provided with a second scale.