Bone wax conveying system and method

Abstract

The invention discloses a bone wax conveying system and method.The bone wax conveying system comprises an injection gun and a wax storage box detachably arranged on the injection gun, and the wax storage box comprises a connector device and bone wax pre-poured into the connector device. The wax storage box and the injection gun are detachably arranged, an operator can replace the connector device for multiple times when executing work, and the connector device can be replaced by multiple times in an endoscopic surgery or a UBE surgery by adjusting the hardness of bone wax and the connector length of the wax storage box. The injection gun can push bone wax in the connector device out to a bone wound part needing hemostasis at room temperature with preset injection force, the injection process is easier, the wax output amount is convenient to control, the problems that an endoscope inner cavity is polluted by the bone wax and a traditional injection system needs to be additionally provided with a complex heating structure are solved, and the injection efficiency is improved. Bone wax conveying and the whole operation efficiency are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a bone wax delivery system and method. Background Art

[0002] Bone bleeding during open surgery is usually blocked and hemostatically blocked with bone wax. Bone wax can be used to stop bleeding from bone marrow capillaries caused by bone fractures, drilling or fragmentation at different ages, locations and for different reasons.

[0003] The common method of applying bone wax is manual application, but when it comes to minimally invasive surgery, such as unilateral dual-channel arthroscopic spinal endoscopic surgery (UBE) or transforaminal endoscopic surgery, due to the narrow aperture of the working channel, traditional delivery instruments and human hands cannot reach the bone affected area. Now it is common to use a nerve stripper to dip bone wax and insert it into the bleeding bone wound surface, but the bone wax may fall off during the insertion process.

[0004] Many bone wax injection system design methods have been proposed in the prior art, and the main solution is to heat the wax before injection. However, the design of this solution is complex and difficult to operate in actual clinical practice. The bone wax needs to be melted first, then sucked into the injection system, and finally injected into the site of use. The operation process is complicated. At the same time, the bone wax has problems of uneven composition and poor sealing performance when heated. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a bone wax delivery system and method which has a simple structure, is convenient for applying bone wax and has high working reliability.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0007] The present application provides a bone wax delivery system, including a push gun and a wax storage box;

[0008] The injection gun comprises:

[0009] Grip part;

[0010] A sleeve, fixedly arranged on the gripping portion;

[0011] A push rod, slidably disposed in the sleeve;

[0012] The wax storage box comprises:

[0013] The joint device is detachably arranged at one end of the sleeve away from the gripping portion, and comprises a docking portion and an applicator head fixedly arranged on the docking portion, wherein a transition channel is arranged in the docking portion, and a wax outlet communicating with the transition channel is arranged on the applicator head;

[0014] Bone wax, pre-injected into the transition channel of the joint device;

[0015] Wherein, when the push rod slides relative to the sleeve, it can extend into the transition channel and squeeze the bone wax in the transition channel to the outside of the joint device through the wax outlet.

[0016] It is further defined that in the above-mentioned bone wax delivery system, the coating head is provided with a coating surface at one end away from the docking portion;

[0017] Wherein, the angle between the axis of the docking portion and the coating surface is set to 0° to 90°.

[0018] It is further defined that in the above-mentioned bone wax delivery system, the end of the sleeve away from the gripping portion is threadedly connected or clamped to the docking portion of the joint device.

[0019] It is further defined that in the above-mentioned bone wax delivery system, the push rod comprises a guide portion slidably connected to the sleeve and a push injection portion fixedly arranged at one end of the guide portion close to the joint device, and the push injection portion is slidably connected to the inner wall of the transition channel;

[0020] And / or, a push plate is fixedly provided at one end of the push rod away from the gripping portion, and the push plate is transitionally matched with the inner wall of the transition channel and can slide in the transition channel.

[0021] It is further defined that the above-mentioned bone wax delivery system further includes a locking unit for limiting the relative positions of the gripping portion and the push rod.

[0022] It is further defined that in the above-mentioned bone wax delivery system, the locking unit comprises a locking cavity arranged at an end of the gripping portion away from the sleeve, a locking piece is fixedly arranged in the locking cavity, and a resisting piece is threadedly connected to the locking piece and is located at a side of the locking piece away from the sleeve;

[0023] The abutment comprises a connecting portion threadedly connected to the locking cavity, a rotating portion fixedly arranged at one end of the connecting portion away from the sleeve and located outside the locking cavity, and a clearance hole arranged in the connecting portion and opening to one side of the sleeve;

[0024] The locking member comprises a base fixedly connected to the inner wall of the locking cavity close to the sleeve and a through hole penetrating the base along the axial direction of the push rod, and a plurality of driven buckle plates are fixedly arranged in an annular array about the central axis of the push rod at one end of the base away from the sleeve;

[0025] Among them, the push rod passes through the resistance member and the locking member, and the driven buckle plate is provided with a guide slope at one end close to the resistance member. When the resistance member moves toward the side close to the sleeve, the inner wall of the clearance hole can abut against the guide slope to drive the driven buckle plate to offset and clamp the locking push rod.

[0026] It is further defined that, in the above-mentioned bone wax delivery system, the push rod and the gripping portion are connected by one of a threaded connection, a tight-fitting connection, and a rack and pinion transmission connection.

[0027] The present application also provides a bone wax delivery method, applicable to any of the above-mentioned bone wax delivery systems, comprising:

[0028] Determine the application angle, connector inner diameter, and bone wax hardness of the bone wax delivery system;

[0029] The joint length is quantitatively calculated based on the coating angle of the bone wax delivery system, the inner diameter of the joint, and the hardness of the bone wax, so that the injection force of the injection gun to push the bone wax out of the joint device reaches a predetermined parameter at room temperature;

[0030] The coating angle is specifically the angle between the axis of the docking part in the joint device and the coating surface of the coating head, the inner diameter of the joint is specifically the inner diameter of the transition channel of the joint device, and the hardness of the bone wax is specifically the hardness of the bone wax in the joint device at room temperature;

[0031] The joint length is specifically the length of the joint device along the axial direction of the butt joint, and the room temperature is specifically 20-28°C.

[0032] It is further defined that in the above-mentioned bone wax delivery method, at room temperature, the hardness of the bone wax is specifically set to be between 700 and 1200 gf.

[0033] It is further defined that in the above-mentioned bone wax delivery method, the inner diameter of the joint is specifically set to 1 to 7 mm, and the length of the joint is specifically set to 1 to 7 cm;

[0034] The injection force of the injection gun to push the bone wax out of the joint device is 0 to 35N at room temperature.

[0035] The present invention has at least the following beneficial effects:

[0036] 1. The joint device and the sleeve are detachable, and bone wax can be pre-filled in the joint device. The operator can replace the joint device multiple times during work, which solves the problem that the inner cavity of the traditional conveyor is difficult to clean and the cleaning is not thorough. In addition, one push gun can be equipped with multiple wax storage boxes of different specifications, which greatly improves the practicality of the bone wax delivery system. At the same time, the conveyor adopts a rod-shaped structure for bone wax delivery, which is convenient for small-scale application under laparoscopic surgery, avoiding the drop of bone wax during the operation, and improving the overall reliability of bone wax delivery;

[0037] 2. When the push rod squeezes the bone wax in the joint device out through the wax outlet, the bone wax can be applied by the smearing head while the wax is being discharged. At the same time, by replacing the joint device with different smearing surface angles, the operation convenience of the smearable area can be further improved;

[0038] 3. When the push piece is tightened, it moves toward the side close to the locking piece, thereby pressing the locking piece to make the driven buckle plate deform and abut against the push rod. Under the clamping action of multiple driven buckle plates, the push rod is fixed relative to the gripping part, which can not only ensure the control stability of the push rod, but also accurately control the wax output of the bone wax, thereby improving the delivery and application effect of the bone wax;

[0039] 4. By adjusting the hardness of bone wax and the length of the joint of the wax storage box, during laparoscopic surgery or UBE surgery, the injection gun can push the bone wax in the joint device to the bone wound site that needs hemostasis at room temperature with a predetermined injection force. Not only is the injection process easier and convenient for controlling the amount of wax output, but it also solves the problem of bone wax contaminating the laparoscope cavity and the need for additional complex heating structures in traditional injection systems, greatly improving bone wax delivery and the overall efficiency of surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the structure of the bone wax delivery system of the embodiment of the present application;

[0041] Figure 2 This is a structural cross-sectional view of the bone wax delivery system of an embodiment of the present application;

[0042] Figure 3 This is a schematic diagram of the structure of the "connector device 300" in the bone wax delivery system of the embodiment of the present application;

[0043] Figure 4 This is a schematic diagram of the structure of the "connector device 300" in the bone wax delivery system of the embodiment of the present application;

[0044] Figure 5 This is a schematic diagram of the structure of the "locking member 520" in the bone wax delivery system of the embodiment of the present application;

[0045] Figure 6 This is a structural cross-sectional view of the connection part of the "sleeve 200 and the connector device 300" in the bone wax delivery system of the embodiment of the present application;

[0046] Figure 7 This is a structural cross-sectional view of the connection part of the "sleeve 200 and the connector device 300" in the bone wax delivery system of the embodiment of the present application;

[0047] Figure 8 This is a structural cross-sectional view of the connection part of the "sleeve 200 and the connector device 300" in the bone wax delivery system of the embodiment of the present application;

[0048] Fig. 9 This is a structural cross-sectional view of the connection part of the "sleeve 200 and the connector device 300" in the bone wax delivery system of the embodiment of the present application;

[0049] Fig.10 This is a structural cross-sectional view of the connection part of the "sleeve 200 and the connector device 300" in the bone wax delivery system of the embodiment of the present application;

[0050] Fig.11 This is a schematic diagram of the structure of the bone wax delivery system of the embodiment of the present application;

[0051] Fig.12 This is a schematic diagram of the structure of the bone wax delivery system according to an embodiment of the present application.

[0052] Reference numerals

[0053] The holding part 100, the locking cavity 110, the driving cavity 120, the transmission groove 130, the transmission gear 140, the sleeve 200, the card slot 210, the joint device 300, the docking part 310, the applicator head 320, the transition channel 330, the docking cavity 331, the storage cavity 332, the wax outlet 340, the card convex part 350, the push rod 400, the guide part 410, the injection part 420, the pressing part 430, the rack part 440, the abutment 510, the connecting part 511, the rotating part 512, the yield hole 513, the locking part 520, the base 521, the driven buckle plate 522, the perforation 523, the push plate 600, the sealing ring 700, and the bone wax 900. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0055] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0056] The bone wax delivery system and method provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0057] like Figures 1 to 12As shown, an embodiment of the present application provides a bone wax delivery system, including a push gun and a wax storage box detachably arranged on the push gun, the push gun includes a gripping portion 100, a sleeve 200 fixedly arranged on the gripping portion 100, and a push rod 400 slidably arranged in the sleeve 200, the push rod 400 is slidably connected to the gripping portion 100, and the wax storage box includes a joint device 300 detachably arranged at one end of the sleeve 200 away from the gripping portion 100 and bone wax 900 pre-filled in the joint device 300.

[0058] The joint device 300 includes a docking portion 310 and a coating head 320 fixedly disposed at one end of the docking portion 310 away from the sleeve 200 . A transition channel 330 is disposed in the docking portion 310 , and a wax outlet 340 communicating with the transition channel 330 is disposed on the coating head 320 .

[0059] The transition channel 330 is used to accommodate bone wax 900. When the push rod 400 slides relative to the sleeve 200, the end away from the gripping portion 100 can extend into the transition channel 330 and squeeze the bone wax 900 in the transition channel 330 to the outside of the joint device 300 through the wax outlet 340.

[0060] In an embodiment of the present application, the above-mentioned bone wax delivery system is adopted, and the joint device 300 and the sleeve 200 are detachably arranged, and the bone wax 900 can be pre-filled in the joint device 300. The operator can replace the joint device 300 multiple times when performing work, which solves the problem that the inner cavity of the traditional delivery device is difficult to clean and the cleaning is not thorough. In addition, one injection gun can be equipped with multiple wax storage boxes of different specifications, which greatly improves the practicality of the bone wax delivery system. At the same time, the delivery device adopts a rod-shaped structure to deliver bone wax 900, which is convenient for small-scale application under laparoscopic surgery, avoids the falling of bone wax 900 during the operation, and improves the overall reliability of bone wax 900 delivery.

[0061] In a preferred embodiment, Figure 3 , Figure 4 As shown, a coating surface is provided at one end of the coating head 320 away from the docking portion 310, and an angle between the axis of the docking portion 310 and the coating surface of the coating head 320 is set to 0° to 90°.

[0062] In an embodiment of the present application, the above-mentioned bone wax delivery system is adopted. When the push rod 400 squeezes the bone wax 900 contained in the connecting device 300 out through the wax outlet 340, the bone wax 900 can be applied by the application head 320 while the wax is being discharged. At the same time, by replacing the connecting device 300 with different application surface angles, the operational convenience of the application area can be further improved.

[0063] In a preferred embodiment, Figure 1 , Figure 2 , Fig.11 As shown, the push rod 400 extends from one end of the connector device 300 to a side of the gripping portion 100 away from the sleeve 200 .

[0064] In a preferred embodiment, Figure 3 , Figure 4 As shown, the edge of the coating surface of the coating head 320 is provided with a transition fillet, so as to improve the coating effect of the bone wax 900.

[0065] In a preferred embodiment, Figure 7 As shown, one end of the sleeve 200 away from the gripping portion 100 is inserted into the transition channel 330 and is threadedly connected to the inner wall of the transition channel 330 .

[0066] It is understandable that the detachable connection form between the sleeve 200 and the connector device 300 is not limited to the above-mentioned one. For example, it can also be arranged that the end of the sleeve 200 away from the holding portion 100 is sleeved on the docking portion 310 and is threadedly connected to the outer cylindrical surface of the docking portion 310. As long as the connector device 300 can be disassembled from the sleeve 200, it will not be elaborated here.

[0067] In a preferred embodiment, Fig.10 As shown, a sealing ring 700 is fixedly provided on the outer circumferential surface of the sleeve 200 at one end away from the gripping portion 100 , and the sealing ring 700 is threadedly connected to the inner wall of the transition channel 330 .

[0068] In an embodiment of the present application, the above-mentioned bone wax delivery system is adopted. Since a sealing ring 700 is arranged between the outer cylindrical surface of the sleeve 200 and the inner wall of the transition channel 330, the inner diameter of the transition channel 330 is increased, so that more bone wax 900 can be stored in the transition channel 330. At the same time, the sealing ring 700 can prevent the bone wax 900 from overflowing at the connection position between the joint device 300 and the sleeve 200 when the bone wax 900 is being transported, thereby ensuring the working stability of the conveyor.

[0069] In a preferred embodiment, Fig. 9 , 10 As shown, the push rod 400 extends from one end away from the gripping portion 100 to the side of the sleeve 200 away from the gripping portion 100 , and is fixed with a push plate 600 that can be slidably connected to the transition channel 330 .

[0070] The push plate 600 is made of a flexible material to ensure the fit with the inner wall of the transition channel 330 , and can be welded, riveted, bonded or integrally formed to one end of the push rod 400 close to the joint device 300 .

[0071] It is understandable that when the push rod 400 moves toward the side close to the joint device 300 , the push plate 600 can push the bone wax 900 in the transition channel 330 , thereby squeezing the bone wax 900 to the outside of the joint device 300 through the wax outlet 340 .

[0072] In a preferred embodiment, Figure 6 As shown, the transition channel 330 includes a material storage cavity 332 disposed in the docking portion 310 and communicating with the wax outlet 340 , and a docking cavity 331 disposed at one end of the docking portion 310 close to the sleeve 200 and communicating with the material storage cavity 332 .

[0073] like Figure 2 As shown, the push rod 400 includes a guide portion 410 slidably connected to the sleeve 200, a push portion 420 fixedly arranged at one end of the guide portion 410 close to the connector device 300, and a pressing portion 430 fixedly arranged at one end of the guide portion 410 away from the connector device 300 and located on the side of the gripping portion 100 away from the connector device 300.

[0074] Among them, the inner diameter of the docking cavity 331 is larger than the inner diameter of the storage cavity 332, the push injection part 420 can be slidably connected with the storage cavity 332, and the end of the guide part 410 close to the push injection part 420 can abut against the inner wall of the docking cavity 331 close to the storage cavity 332.

[0075] It can be understood that when the push rod 400 moves to extrude the bone wax 900 in the transition channel 330, the abutment between the guide portion 410 and the inner wall of the docking cavity 331 can limit the relative position of the push rod 400 and the joint device 300, thereby limiting the extrusion stroke of the bone wax 900 of the push injection portion 420 in the storage cavity 332.

[0076] In a preferred embodiment, Figure 8 As shown, the end of the sleeve 200 away from the gripping portion 100 is inserted into the docking cavity 331 and a clamping groove 210 is provided on the outer circumferential surface. A clamping protrusion 350 capable of clamping with the clamping groove 210 is provided on the inner wall of the docking cavity 331.

[0077] It is understandable that when the connector device 300 is sleeved on the end of the sleeve 200 away from the gripping portion 100 , as the sleeve 200 is fed into the docking cavity 331 , the slot 210 engages with the protruding piece 350 to limit the relative positions of the sleeve 200 and the connector device 300 .

[0078] It is understandable that the snap-fitting structure between the sleeve 200 and the connector device 300 is not limited to the above-mentioned one. For example, a snap-fitting protrusion 350 can be provided on the outer circumferential surface of the sleeve 200, and a snap-fitting groove 210 can be provided on the inner wall of the docking cavity 331. As long as the snap-fitting of the connector device 300 on the sleeve 200 can be achieved, it will not be elaborated here.

[0079] In a preferred embodiment, Figure 1 , Figure 2 , Figure 5 As shown, a locking unit is also included for limiting the relative positions of the gripping portion 100 and the push rod 400.

[0080] In a preferred embodiment, Figure 1 , Figure 2 , Figure 5 As shown, the locking unit includes a locking cavity 110 arranged at the end of the gripping portion 100 away from the sleeve 200, a locking piece 520 is fixedly provided on the inner wall of the locking cavity 110 close to the sleeve 200, and a resisting piece 510 located on the side of the locking piece 520 away from the sleeve 200 is threadedly connected in the locking cavity 110, and the push rod 400 passes through the resisting piece 510 and the locking piece 520 and is loosely matched with the resisting piece 510 and the locking piece 520.

[0081] The resist 510 includes a connecting portion 511 that can be threadedly connected to the locking cavity 110, a rotating portion 512 fixedly arranged at one end of the connecting portion 511 away from the sleeve 200 and located outside the locking cavity 110, and a clearance hole 513 arranged in the connecting portion 511 and opening to one side of the sleeve 200.

[0082] The locking member 520 includes a base 521 fixedly connected to the inner wall of the locking cavity 110 close to the sleeve 200 , a driven buckle plate 522 fixedly arranged on the end of the base 521 away from the sleeve 200 , and a through hole 523 axially penetrating the base 521 along the push rod 400 .

[0083] A plurality of driven buckle plates 522 are fixedly provided on one end of the base 521 away from the sleeve 200 , and the plurality of driven buckle plates 522 are arranged in a circular array about the central axis of the push rod 400 .

[0084] A guiding bevel is provided on one end of the driven buckle plate 522 close to the abutment 510. When the abutment 510 moves toward the side close to the sleeve 200, the inner wall of the positioning hole 513 can abut against the guiding bevel on the driven buckle plate 522, thereby driving the driven buckle plate 522 to deviate toward the side close to the push rod 400 to abut and lock the push rod 400.

[0085] In an embodiment of the present application, the above-mentioned bone wax delivery system is adopted. When the abutment 510 is tightened, it moves toward the side close to the locking member 520, thereby pressing the locking member 520 so that the driven buckle plate 522 is deformed and abuts against the push rod 400. The push rod 400 is fixed in a relative position to the gripping portion 100 under the clamping action of multiple driven buckle plates 522, which not only ensures the control stability of the push rod 400, but also can accurately control the wax output of the bone wax 900, thereby improving the delivery and application effect of the bone wax 900.

[0086] In a preferred embodiment, Fig.11 As shown, the push rod 400 is threadedly connected to the gripping portion 100 .

[0087] When the push rod 400 is rotated, the push rod 400 moves axially along the gripping portion 100 driven by the thread, and rotates and feeds in the transition channel 330 , thereby pushing out the bone wax 900 stored in the joint device 300 .

[0088] In a preferred embodiment, Fig.12 As shown, the push rod 400 includes a guide portion 410 slidably connected to the sleeve 200 and a rack portion 440 fixedly disposed at an end of the guide portion 410 away from the connector device 300 .

[0089] The gripping portion 100 is provided with a driving cavity 120 that slides with the rack portion 440, and is also provided with a transmission groove 130 that is connected to the outer side of the gripping portion 100 and the driving cavity 120. A transmission gear 140 that meshes with the rack portion 440 is rotatably provided in the transmission groove 130, and the transmission gear 140 extends radially to the outer side of the gripping portion 100.

[0090] It is understandable that when the operator rotates the transmission gear 140 , the transmission gear 140 can drive the rack portion 440 meshing therewith to move axially along the joint device 300 , thereby driving the guide portion 410 to push out the bone wax 900 stored in the joint device 300 .

[0091] In a preferred embodiment, the gripping portion 100 is made of PA, PVC or ABS material, and is connected to the sleeve 200 by bonding, threading, welding or the like.

[0092] In a preferred embodiment, the sleeve 200 and / or the push rod 400 are made of stainless steel 304 / 316 or the like.

[0093] The present application embodiment provides a bone wax delivery method, which is applicable to the bone wax delivery system in the above embodiment, including:

[0094] The coating angle, the inner diameter of the joint, and the hardness of the bone wax are determined, and the joint length is quantitatively calculated based on the coating angle, the inner diameter of the joint, and the hardness of the bone wax, so that the injection force of the injection gun to push the bone wax 900 in the joint device 300 is 0 to 35N at room temperature.

[0095] Among them, the coating angle is specifically the angle between the axis of the docking part 310 and the coating surface of the coating head 320, the inner diameter of the joint is specifically the inner diameter of the transition channel 330, the bone wax hardness is specifically the hardness of the bone wax 900 in the joint device 300 at room temperature, the joint length is specifically the axial length of the joint device 300 along the docking part 310, and the room temperature is specifically 20-28°C.

[0096] In an embodiment of the present application, the above-mentioned bone wax delivery method is adopted. By adjusting the hardness of the bone wax and the length of the joint of the wax storage box, during laparoscopic surgery or UBE surgery, the injection gun can push the bone wax 900 in the joint device 300 to the bone wound site that needs hemostasis at room temperature with a predetermined injection force. Not only is the injection process easier and convenient for controlling the amount of wax output, but it also solves the problem of bone wax contaminating the laparoscope cavity and the need for additional complex heating structures in traditional injection systems, thereby greatly improving the bone wax delivery and overall surgical efficiency.

[0097] In a preferred embodiment, the inner diameter of the joint is specifically set to 1-7 mm, the hardness of the bone wax at room temperature is specifically set to between 700 and 1200 gf, and the length of the joint is specifically set to 1-7 cm.

[0098] It can be understood that when the inner diameter of the joint and the hardness of the bone wax are determined, the relationship between the joint length and the injection force and the volume of the bone wax 900 in the joint device 300 at room temperature is as shown in the following table:

[0099]

[0100]

[0101] When the inner diameter and length of the joint are determined, the relationship between the hardness of the bone wax and the injection force, the sealing effect, and the smear dispersion at room temperature is shown in the following table:

[0102]

[0103] In summary, it can be seen that in order to ensure the best injection feel during the injection process, the injection force needs to be between 0 and 35N, and the injection force is related to the bone wax hardness, the inner diameter of the joint, and the length of the joint. Since the inner diameter of the joint is based on surgical requirements, only the bone wax hardness and the joint length are relatively easy to adjust. As can be seen from the above table, choosing a bone wax hardness between 700 and 1200gf and a joint length of 1 to 7cm can ensure that the occlusion effect, smear dispersion, bone wax capacity and injection force all reach a better level.

[0104] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0105] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A bone wax delivery system, characterized in that: Including injection gun, wax storage box; The push gun comprises: Grip part; A sleeve, fixedly arranged on the gripping portion; A push rod, slidably disposed in the sleeve; The wax storage box comprises: The joint device is detachably arranged at one end of the sleeve away from the gripping portion, and comprises a docking portion and an applicator head fixedly arranged on the docking portion, wherein a transition channel is arranged in the docking portion, and a wax outlet communicating with the transition channel is arranged on the applicator head; Bone wax, pre-injected into the transition channel of the joint device; Wherein, when the push rod slides relative to the sleeve, it can extend into the transition channel and squeeze the bone wax in the transition channel to the outside of the joint device through the wax outlet.

2. A bone wax delivery system according to claim 1, characterized in that: The coating head is provided with a coating surface at one end away from the docking portion; Wherein, the angle between the axis of the docking portion and the coating surface is set to 0° to 90°.

3. A bone wax delivery system according to claim 1, characterized in that: One end of the sleeve away from the gripping portion is threadedly connected or clamped with the butt joint of the connector device.

4. A bone wax delivery system according to claim 1, characterized in that: The push rod comprises a guide portion slidably connected to the sleeve and a push injection portion fixedly arranged at one end of the guide portion close to the joint device, and the push injection portion is slidably connected to the inner wall of the transition channel; And / or, a push plate is fixedly provided at one end of the push rod away from the gripping portion, and the push plate is transitionally matched with the inner wall of the transition channel and can slide in the transition channel.

5. A bone wax delivery system according to claim 1, characterized in that: It also includes a locking unit for limiting the relative positions of the gripping portion and the push rod.

6. A bone wax delivery system according to claim 5, characterized in that: The locking unit comprises a locking cavity arranged at one end of the gripping portion away from the sleeve, a locking piece is fixedly arranged in the locking cavity, and a resisting piece is threadedly connected and arranged at a side of the locking piece away from the sleeve; The abutment comprises a connecting portion threadedly connected to the locking cavity, a rotating portion fixedly arranged at one end of the connecting portion away from the sleeve and located outside the locking cavity, and a clearance hole arranged in the connecting portion and opening to one side of the sleeve; The locking member comprises a base fixedly connected to the inner wall of the locking cavity close to the sleeve and a through hole penetrating the base along the axial direction of the push rod, and a plurality of driven buckle plates are fixedly arranged in an annular array about the central axis of the push rod at one end of the base away from the sleeve; Among them, the push rod passes through the resistance member and the locking member, and the driven buckle plate is provided with a guide slope at one end close to the resistance member. When the resistance member moves toward the side close to the sleeve, the inner wall of the clearance hole can abut against the guide slope to drive the driven buckle plate to offset and clamp the locking push rod.

7. A bone wax delivery system according to claim 1 or 6, characterized in that: The push rod and the gripping portion are connected by one of a threaded connection, a tight fit connection, and a rack and pinion transmission connection.

8. A bone wax delivery method, characterized in that: The bone wax delivery system according to any one of claims 1 to 7 comprises: Determine the application angle, connector inner diameter, and bone wax hardness of the bone wax delivery system; The joint length is quantitatively calculated based on the coating angle of the bone wax delivery system, the inner diameter of the joint, and the hardness of the bone wax, so that the injection force of the injection gun to push the bone wax out of the joint device reaches a predetermined parameter at room temperature; The coating angle is specifically the angle between the axis of the docking part in the joint device and the coating surface of the coating head, the inner diameter of the joint is specifically the inner diameter of the transition channel of the joint device, and the hardness of the bone wax is specifically the hardness of the bone wax in the joint device at room temperature; The joint length is specifically the length of the joint device along the axial direction of the butt joint, and the room temperature is specifically 20-28°C.

9. A bone wax delivery method according to claim 8, characterized in that: At room temperature, the hardness of the bone wax is specifically set to be between 700 and 1200 gf.

10. A bone wax delivery method according to claim 8 or 9, characterized in that: The inner diameter of the joint is specifically set to 1 to 7 mm, and the length of the joint is specifically set to 1 to 7 cm; The injection force of the injection gun to push the bone wax out of the joint device is 0 to 35N at room temperature.

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