A bone wax smear gun that automatically fills and ejects bone wax

Abstract

The present invention provides a bone wax smearing gun that automatically fills and ejects bone wax, comprising a gun body, a gun head, a bone wax mechanism, a catheter, and a control mechanism, wherein the bone wax mechanism and the control mechanism are mounted on the gun body; the bone wax mechanism is used for mounting a bone wax tube filled with bone wax, and for filling the bone wax in the bone wax tube into the inner cavity of the gun head; the rear end of the catheter is connected to the opening of the bone wax tube, and the front end of the catheter extends into the gun head; the control mechanism is used to control the bone wax mechanism to extrude the bone wax in the bone wax tube. Therefore, the bone wax smearing gun is capable of automatically filling with bone wax, effectively avoiding the risk of cross infection caused by manual filling, and can perform a one-time insertion and multiple smearing operation according to the surgical situation, ensuring that a rapid hemostatic effect can be achieved, improving efficiency, and reducing surgical time.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a bone wax smear gun that automatically fills and ejects bone wax. Background Art

[0002] Bone wax is a material that physically blocks capillary bleeding in the bone marrow and is used to stop bleeding in emergency patients. To use bone wax, press and apply it to the bleeding bone surface.

[0003] Currently, bone wax is applied to bone surfaces during orthopedic surgery to stop bleeding. Using a nerve stripping ruler or curved forceps, a small piece of bone wax is applied. However, if blood or other tissue fluid is present on the bone surface, the wax can become unstable and fall off. Furthermore, if the bone surface is uneven, the application and hemostasis effect are often poor. Furthermore, using nerve stripping rulers and curved forceps can be difficult to control the angle and force of application, making the procedure cumbersome and inefficient, prolonging surgery time, and increasing intraoperative bleeding.

[0004] In the prior art, as the utility model patent with publication number CN216725500U, a bone wax smearing gun is disclosed. Although it can replace the above-mentioned nerve stripping ruler, curved forceps and other tools, it can improve operating efficiency and make the operation simple and quick. However, since there is no bone wax storage device on the bone wax smearing gun, it is necessary to manually fill bone wax into the syringe each time it is used, and then utilize the inner needle to push it out. However, if the amount of bone wax filled in a single time does not meet the hemostasis demand, when more bone wax is needed, it is necessary to take out the bone wax gun, re-manually fill it and then push it out again to smear; or if it is necessary to smear bone wax on multiple bone surface bleeding points during an operation, it is also necessary to fill it multiple times, so the operation is more troublesome, and there is a risk of cross infection.

[0005] Therefore, it is very necessary to develop a bone wax smear gun that automatically fills bone wax and shoots. Summary of the Invention

[0006] The purpose of the present invention is to address the above-mentioned problems and shortcomings and provide a bone wax smearing gun that automatically fills and ejects bone wax, so as to effectively solve the problem that the existing bone wax smearing gun is cumbersome to operate when filling bone wax.

[0007] The technical solution of the present invention is achieved as follows:

[0008] The bone wax smearing gun described in the present invention automatically fills and ejects bone wax, comprises a gun body and a gun head, wherein the gun head is connected to the front end of the gun barrel of the gun body, and is characterized in that it also comprises: a bone wax mechanism, wherein the bone wax mechanism is arranged on the gun body, and is used for installing a bone wax tube containing bone wax, and filling the bone wax in the bone wax tube into the inner cavity of the gun head; a catheter, wherein the rear end of the catheter is connected to the opening of the bone wax tube, and the front end of the catheter extends into the gun head; and a control mechanism, wherein the control mechanism is arranged on the gun body and is located in a position convenient for operation, and the control mechanism is used to control the bone wax mechanism to extrude the bone wax in the bone wax tube.

[0009] In some embodiments, the bone wax mechanism includes a bone wax bin and a bone wax pushing device, wherein the bone wax bin is used to place the bone wax tube, and the bone wax pushing device is arranged behind the bone wax bin and can be extended into the bone wax bin to squeeze the bone wax tube.

[0010] Furthermore, the bone wax pushing device includes a push rod, a pushing gear and a pushing motor. The pushing motor and the pushing gear are installed in the gun body behind the bone wax bin. The rotating shaft gear of the pushing motor is engaged with the pushing gear. The push rod is provided with a rack that is engaged with the pushing gear. The front end of the push rod extends into the bone wax bin to squeeze the bone wax tube.

[0011] Furthermore, the bottom cover of the bone wax tube is slidably connected to the bone wax tube, and the front end of the push rod extends into the bone wax bin and presses against the bottom cover; when the bottom cover is pressed forward, the bone wax is squeezed out from the front end of the bone wax tube.

[0012] In some embodiments, the control mechanism includes an extrusion button and a retraction button; when the extrusion button is activated, the push motor rotates forward to drive the push rod forward to squeeze out the bone wax in the bone wax tube; when the retraction button is activated, the push motor rotates backward to drive the push rod backward to move out of the bone wax bin.

[0013] In some embodiments, the front end of the bone wax bin is provided with a through opening, and the front end of the bone wax tube is designed to be a retractable neck. After the bone wax tube is placed in the bone wax bin, the retractable neck extends from the through opening to the front of the bone wax bin; the rear end of the catheter is sleeved on the wax outlet nozzle at the front end of the retractable neck.

[0014] In some embodiments, the bone wax bin includes a bin body and a bin cover, the bin cover is connected to the bin body in a rotatable and openable manner, and a heating element is provided on the inner wall of the bin body and / or the bin cover, and the heating element is used to heat the bone wax in the bone wax tube.

[0015] In some embodiments, the gun head includes a straight tube portion and an elbow portion, and the elbow portion is universally connected to the straight tube portion.

[0016] Furthermore, a universal controller is included. The universal controller is arranged on the outer wall of the gun body. The universal controller is electrically connected to the elbow part, and the universal rotation of the elbow part relative to the straight pipe part is controlled by the universal controller.

[0017] In some embodiments, the gun body is further provided with: an ejection mechanism, which is arranged in the gun barrel, and the ejection mechanism includes an ejection member, and when the ejection member moves backward, the ejection mechanism stores energy, and when the ejection member moves forward, the bone wax squeezed into the gun head is ejected from the gun head; a driving mechanism, which is arranged in the gun body, and is used to drive the ejection member to move backward to store energy; a launching mechanism, which is used to lock or release the stored energy state of the ejection member, and release the stored energy state of the ejection mechanism when the trigger of the launching mechanism is pulled; an adjusting mechanism, which is arranged in the gun body, and is used to adjust the backward movement distance of the ejection member to change the force with which the bone wax is ejected from the gun head.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention is provided with a bone wax mechanism, which can be used to install a bone wax tube filled with bone wax, and fill the bone wax in the bone wax tube into the inner cavity of the gun head, so that the bone wax smearing gun can automatically fill with bone wax, effectively avoiding the risk of cross infection caused by manual filling, and can perform a one-time insertion and multiple smearing operations according to the surgical situation, ensuring that a rapid hemostasis effect can be achieved, efficiency can be improved, and operation time can be reduced.

[0020] 2. The bone wax tube of the present invention can be either fixedly and non-detachably installed in the bone wax mechanism or detachably installed in the bone wax mechanism. When it is detachably installed, when the bone wax in the bone wax tube is used up, the bone wax tube can be directly taken out and replaced with a new one, thereby saving time for filling the bone wax tube with bone wax. Especially if this situation occurs during surgery, then by replacing the bone wax tube, the operation time can be greatly reduced, the efficiency is further improved, and the operation is convenient and quick.

[0021] The present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a bone wax smear gun that automatically fills and ejects bone wax according to the present invention;

[0023] Figure 2 This is a schematic diagram of the exploded structure of the bone wax smear gun of the present invention that automatically fills and ejects bone wax;

[0024] Figure 3 A schematic cross-sectional view of a bone wax mechanism according to one embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of a gun tip according to one embodiment of the present invention;

[0026] Figure 5 is a schematic diagram of the exploded structure of an ejection mechanism according to one embodiment of the present invention;

[0027] Figure 6 A schematic diagram of the exploded structure of a launching mechanism according to one embodiment of the present invention;

[0028] Figure 7 is a schematic diagram of the exploded structure of a driving mechanism according to one embodiment of the present invention;

[0029] Figure 8 A schematic diagram of the exploded structure of an adjustment mechanism according to one embodiment of the present invention;

[0030] Figure 9 This is a structural schematic diagram of a bone wax gun in an initial state according to one embodiment of the present invention;

[0031] Figure 10 for Figure 9 A schematic structural diagram of the bone wax gun of the embodiment in a state of extruding bone wax;

[0032] Figure 11 for Figure 9 A schematic structural diagram of the piston rod of the bone wax gun of the embodiment in a state of gradually accumulating force;

[0033] Figure 12 for Figure 9 A schematic structural diagram of the piston rod of the bone wax gun of the embodiment in a state of maximum stored force;

[0034] Figure 13 for Figure 9 A schematic structural diagram of the bone wax gun of an embodiment at the instant the trigger is pulled.

[0035] Reference numerals:

[0036] Gun body 1;

[0037] Left housing 11, right housing 12, barrel 13, handle 14, drive seat 15, through hole 16, motor seat 17, placement position 18, circuit board 19;

[0038] Gun head 2;

[0039] Straight pipe portion 21, elbow portion 22, universal connector 23;

[0040] Bone wax mechanism 3;

[0041] Bone wax tube 31, bone wax bin 32, push rod 33, pushing gear 34, pushing motor 35, heating tube 36;

[0042] Wax outlet nozzle 311, bottom cover 312;

[0043] Bin body 321, bin cover 322, opening 323;

[0044] Control mechanism 4;

[0045] Extrude button 41, back button 42;

[0046] Catheter 5;

[0047] Ejection mechanism 6;

[0048] Air cylinder 61, piston 62, piston rod 63, rack 64, ratchet 65, energy storage spring 66;

[0049] Driving mechanism 7;

[0050] Drive motor 71, shaft gear 72, drive gear 73, drive box 74, lift motor 75, threaded rod 76, start button 77, threaded hole 78;

[0051] Launching mechanism 8;

[0052] Trigger 81, pawl 82, pawl plate 83, return spring 84, wedge block 85, torsion spring 86, push plate 87, wedge recess 88, tension spring 89;

[0053] Adjustment mechanism 9;

[0054] Adjustment knob 91, control circuit 92. DETAILED DESCRIPTION

[0055] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0056] In the description of the present invention, it should be understood that the terms "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish between the features, without distinction of order or importance.

[0057] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0058] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "match," "connect," "connect," and "install" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0059] The bone wax smearing gun that automatically fills and ejects bone wax according to the present invention will be described below with reference to the accompanying drawings.

[0060] like Figure 1 and Figure 2As shown, the present invention relates to a bone wax smearing gun that automatically fills and ejects bone wax, comprising a gun body 1 and a gun head 2, wherein the gun head 2 is connected to the front end of the gun barrel 13 of the gun body 1, and further comprising a bone wax mechanism 3 and a guide tube 5. The bone wax mechanism 3 is arranged on the gun body 1, and the bone wax mechanism 3 is used for installing a bone wax tube 31 filled with bone wax. The rear end of the guide tube 5 is connected to the opening of the bone wax tube 31, and the front end of the guide tube 5 extends into the gun head 2. The bone wax mechanism 3 cooperates with the guide tube 5 to fill the bone wax in the bone wax tube 31 into the inner cavity of the gun head 2, preparing for the bone wax smearing gun to eject or eject bone wax. The bone wax mechanism 3 enables bone wax to be filled through the bone wax smear gun, eliminating the need for the operator to take a small amount of bone wax from a container and then fill it into the inner cavity of the gun head 2 from the front opening of the gun head 2. This effectively avoids the risk of cross infection caused by manual filling. Furthermore, the bone wax mechanism 3 does not require the bone wax smear gun to be removed from the surgical instrument channel of the surgical patient during the filling process, thus enabling a one-time insertion and multiple application operation. This effectively solves the problem of the existing bone wax smear gun needing to be removed and manually refilled before applying again if the amount of bone wax filled in a single time does not meet the hemostasis requirement. This ensures that rapid hemostasis can be achieved, improves efficiency, and reduces surgical time.

[0061] In order to better control the filling of bone wax, the present invention also includes a control mechanism 4, which is arranged on the gun body 1 and is located in a convenient operation position. The control mechanism 4 can control the bone wax mechanism 3 to extrude the bone wax in the bone wax tube 31, and finally enter the inner cavity of the gun head 2 through the catheter 5.

[0062] In order to avoid excessive bone wax remaining in the inner cavity of the gun tip 2 during the injection or ejection process or the weakening of the injection or ejection force due to frictional resistance, in some embodiments, the front outlet end of the catheter 5 is set at the front inner cavity of the gun tip 2, so that the bone wax filled into the gun tip 2 is located near the outlet of the gun tip 2, thereby reducing the running distance of the bone wax in the inner cavity, avoiding the residue that eventually leads to the blockage of the gun tip 2 or the weakening of the actual application force, which causes the bone wax to fall off the bone surface.

[0063] Specifically, if Figure 3 In the example shown, the guide tube 5 of this example extends from the front end of the barrel 13 of the gun body 1 into the barrel 13, then enters the gun head 2 along the barrel 13, and finally the front outlet end of the guide tube 5 directly extends to the front end inner cavity of the gun head 2. This design can avoid exposing the guide tube 5 to the outside of the gun head 2 and increasing the cross-sectional area of ​​the instrument. After all, the cross-sectional size of the surgical instrument channel is limited. Of course, the guide tube 5 can also be set externally and extend forward along the outer wall of the gun head 2, and finally its front outlet end extends into the front end inner cavity of the gun head 2. Such a design requires fixing the guide tube 5 to the outer wall of the gun head 2 and reducing the diameter of the gun head 2.

[0064] It is understandable that the bone wax tube 31 of the present invention can be fixed to the bone wax mechanism 3, that is, the bone wax tube 31 cannot be removed from the bone wax mechanism 3. In this case, a filling port can be provided on the bone wax tube 31, and when the bone wax in the bone wax tube 31 is used up, bone wax can be refilled through the filling port. However, this filling operation is not suitable for performing during surgery. Therefore, in order to perform bone wax filling more conveniently and quickly, the bone wax tube 31 of the present invention can be detachably connected to the bone wax mechanism 3. In this way, when the bone wax in the bone wax tube 31 is used up, the bone wax tube 31 can be directly removed and replaced with a new bone wax tube 31, which is easy to operate and effectively improves efficiency.

[0065] Specifically, if Figure 2 In the example shown, the bone wax mechanism 3 includes a bone wax bin 32 and a bone wax pushing device. The bone wax bin 32 is used to place a bone wax tube 31. The bone wax pushing device is arranged behind the bone wax bin 32 and can extend into the bone wax bin 32 to squeeze the bone wax tube 31. The bone wax bin 32 is used to place the bone wax tube 31, so that the bone wax tube 31 can be easily replaced.

[0066] The bone wax pushing device of the present invention can be a manually operated pushing device, that is, a push-pull rod is provided on the gun body 1, and the operator manually operates the push-pull rod to squeeze the bone wax in the bone wax tube 31 into the inner cavity of the gun head 2; or it can be an electrically controlled pushing device, that is, the bone wax pushing device includes a push rod 33, a pushing gear 34, and a pushing motor 35. The pushing motor 35 and the pushing gear 34 are installed in the gun body 1 behind the bone wax bin 32. The rotating shaft gear of the pushing motor 35 is meshed with the pushing gear 34. The push rod 33 is provided with a rack that meshes with the pushing gear 34. The front end of the push rod 33 extends into the bone wax bin 32 to squeeze the bone wax tube 31. The use of electric control can achieve a more accurate amount of bone wax extrusion to avoid excessive or insufficient bone wax filling in the inner cavity of the gun head 2, which may cause blockage or failure to eject.

[0067] In order to facilitate the removal of the empty bone wax tube 31 from the bone wax bin 32, the control mechanism 4 includes an extrusion button 41 and a retraction button 42; when the surgeon presses the extrusion button 41, the push motor 35 rotates forward to drive the push rod 33 forward to squeeze the bone wax in the bone wax tube 31; when the surgeon presses the retraction button 42, the push motor 35 rotates reversely to drive the push rod 33 to move out of the bone wax bin 32, and the bone wax tube 31 can be easily removed from the bone wax bin 32.

[0068] Since a bone wax bin 32 is provided and bone wax is extruded by squeezing the bone wax tube 31, the bone wax tube 31 can be designed as a soft and deformable tube body, such as a tube body made of soft rubber or a paper tube body. When the bone wax pushing device squeezes the bone wax tube 31, the bone wax tube 31 can be deformed in the bone wax bin 32, thereby squeezing the bone wax in the tube from the wax outlet nozzle 311.

[0069] It is understandable that if the bone wax tube 31 is a soft and deformable tube, the bone wax pushing device can also be replaced by a bone wax squeezing device, which can squeeze the bone wax tube 31 through the bone wax squeezing device to squeeze the bone wax from the wax outlet nozzle 311.

[0070] In addition to using a soft tube body, the bone wax tube 31 can also be Figure 3 In the example shown, the bottom cover 312 of the bone wax tube 31 of the example is slidably connected to the bone wax tube 31, and the front end of the push rod 33 extends into the bone wax bin 32 and presses against the bottom cover 312; when the bottom cover 312 is squeezed forward, the bone wax is squeezed out from the wax outlet nozzle 311 at the front end of the bone wax tube 31.

[0071] The bone wax mechanism 3 of the present invention can adopt other conveying methods, such as screw conveying, in addition to pushing and squeezing to extrude bone wax, as long as it can convey the bone wax from the bone wax tube 31 to the inner cavity of the gun head 2.

[0072] As can be understood, the diameter of the gun head 2 part must be smaller, because when in use, the gun head 2 part is to be inserted into the surgical patient's body, so that the front end opening of the gun head 2 is close to and aimed at the bone surface that needs to be smeared with bone wax. And the conduit 5 also needs to be inserted into the surgical patient's body, so the diameter of the conduit 5 requires smaller, therefore, for the convenience of the rear end of the conduit 5 being connected with the opening of the bone wax tube 31, in some embodiments, the front end of the bone wax tube 31 is designed to a contraction neck, and a wax outlet nozzle 311 is provided at the front end of the contraction neck, the outer diameter of the wax outlet nozzle 311 is slightly larger than the conduit 5 inner diameter, and the outer wall of the wax outlet nozzle 311 is designed to a serrated surface, and the rear end of the conduit 5 is sleeved on the wax outlet nozzle 311 by the mode of extrusion installation and realizes tight connection. For the convenience of the conduit 5 being connected with the wax outlet nozzle 311 of the bone wax tube 31, the front end of the bone wax bin 32 is provided with a through port 323, and after the bone wax tube 31 is placed in the bone wax bin 32, the contraction neck extends out from this through port 323 to the bone wax bin 32 front.

[0073] In order to ensure that the bone wax tube 31 does not fall out of the bone wax bin 32 during use and to facilitate the replacement of the bone wax tube 31, the bone wax bin 32 includes a bin body 321 and a bin cover 322, and the bin cover 322 is connected to the bin body 321 in a rotatable manner. Figure 3 shown.

[0074] Because bone wax is solid, it is difficult to pass it from the small tube 5 into the inner cavity of the gun head 2. However, when the bone wax is kept at a temperature between 40 and 50 degrees Celsius, it is in a solid-liquid mixture, which has excellent fluidity and plasticity, allowing it to be easily squeezed into the tube 5 and ultimately tightly filled in the inner cavity of the gun head 2. Therefore, to improve the performance of the bone wax applicator, the present invention provides a heating element on the inner wall of the chamber body 321 and / or the chamber cover 322 to heat the bone wax in the bone wax tube 31.

[0075] It is understandable that heating elements may be provided on both the inner wall of the bin body 321 and the inner wall of the bin cover 322, or may be provided on only the inner wall of the bin body 321, or may be provided on only the inner wall of the bin cover 322. The heating element may be a heating wire, a heating tube 36, etc. Figure 2 In the example shown, a heating tube 36 is installed on the chamber cover 322, arranged in a curved pattern along the interior of the chamber cover 322. Similarly, heating tubes 36 with the same arrangement can also be installed inside the chamber body 321. This ensures that the bone wax chamber 32 heats the bone wax more evenly. The heating tube 36 is electrically connected to the battery in the handle 14 of the gun body 1 via a wire. When the bone wax tube 31 is placed in the bone wax chamber 32, the chamber cover 322 is closed, and the bone wax gun is powered on, the heating tube 36 begins heating the bone wax; once heated to the set temperature, the temperature is maintained constant.

[0076] Since the bleeding points on the bone surface may be on the top surface, side surface, etc. during the operation, in order to align the open end of the gun head 2 with the bleeding points at different positions, accurate smearing can be achieved. The present invention can design the gun head 2 to include a straight tube part 21 and an elbow part 22, wherein the elbow part 22 is connected to the straight tube part 21 through a universal connector 23. That is, the elbow part 22 can be rotated to form the same straight line with the straight tube part 21, or to be in a vertical state, or to other obtuse or acute angles. Figure 4 In the example shown, the universal connector 23 is a deformable corrugated portion, and the straight tube portion 21 and the elbow portion 22 are integrally formed therewith.

[0077] It is understandable that the universal adjustment of the elbow portion 22 and the straight tube portion 21 can be manually adjusted, that is, after a bleeding point is found on the bone surface during surgery, before the bone wax smear gun is inserted, the elbow portion 22 is first adjusted according to the location of the bleeding point, so that the open end of the elbow portion 22 is just aligned with the bleeding point after the gun head 2 is inserted into the bone surface. Of course, it can also be designed to be electrically controlled, for example, a universal controller (not shown in the figure) is provided on the outer wall of the gun body 1, and the universal controller is electrically connected to the elbow portion 22, and the universal controller controls the universal rotation of the elbow portion 22 relative to the straight tube portion 21, thereby achieving the angle adjustment of the elbow portion 22.

[0078] The present invention also includes an ejection mechanism 6 disposed within the barrel 13 and comprising an ejection element. When the ejection element moves backward, the ejection mechanism 6 stores energy, and when the ejection element moves forward, the bone wax is ejected from the gun head 2. Therefore, there is no need for cumbersome operations like those performed with nerve stripping rulers, curved forceps, and other tools. Instead, the front end of the gun head 2 only needs to be aligned with the bone surface, and the force generated by the forward movement of the ejection element is used to eject the bone wax onto the bone surface. This is convenient and efficient. Furthermore, there is a drive mechanism 7 disposed within the barrel 13 for driving the ejection element to move backward and store energy. A firing mechanism 8 is provided for locking or releasing the stored energy state of the ejection element. When a trigger 81 of the firing mechanism 8 is pulled, the stored energy state of the ejection mechanism 6 is released, allowing the ejection element to move forward and eject the bone wax from the gun head 2, eliminating the need for the surgeon to manually apply bone wax.

[0079] To achieve a better effect, the present invention further includes an adjustment mechanism 9 disposed within the gun body 1. The adjustment mechanism 9 is used to adjust the backward movement distance of the ejection member. Specifically, the further the ejection member moves backward, the greater the energy storage. Therefore, when the trigger 81 is pulled, the ejection member will be ejected forward with greater force and speed, and thus the force with which the bone wax is ejected from the gun head 2 will also be increased. Therefore, the adjustment mechanism 9 can be used to adjust and control the force with which the bone wax is ejected from the gun head 2. Therefore, the surgeon can independently adjust the force with which the bone wax is ejected according to the environmental conditions, ensuring that each ejection of the bone wax is stably applied to the bone surface without falling off, achieving an effective hemostatic effect, thereby improving efficiency and reducing surgical time.

[0080] The ejection mechanism 6 of the present invention also includes a gas cylinder 61 and an energy storage spring 66. The gas cylinder 61 is an integrally formed circular cylinder, which is arranged in the barrel 13 of the gun body 1. The front end opening diameter of the gas cylinder 61 is consistent with the inner diameter of the cylinder, and the rear end opening diameter of the gas cylinder 61 is smaller than the inner diameter of the cylinder, so a rear end wall is formed at the rear end. The ejection component corresponds to a piston rod 63, and a piston 62 is provided at the front end of the piston rod 63. The outer diameter of the piston 62 is the same as the inner diameter of the cylinder body. The piston rod 63 is a rectangular column, and the piston rod 63 can pass through the rear end opening of the gas cylinder 61. During installation, the tail end of the piston rod 63 is inserted into the front end opening of the gas cylinder 61, and then extended from the rear end opening of the gas cylinder 61. After installation, the piston 62 is airtightly matched with the inner wall of the gas cylinder 61. The rear end of the piston rod 63 extends out of the gas cylinder 61 and is connected to the driving mechanism 7. The energy storage spring 66 is sleeved on the piston rod 63, and the two ends of the energy storage spring 66 are respectively pressed against the position between the rear end face of the piston 62 and the rear end face wall of the gas cylinder 61. Therefore, when the piston rod 63 moves backward, the energy storage spring 66 will be compressed to store energy, that is, the driving mechanism 7 drives the piston rod 63 to move backward and store energy. The more the piston rod 63 moves backward, the more severely the energy storage spring 66 is squeezed, and the greater its energy storage, such as Figure 5 shown.

[0081] The driving mechanism 7 of the present invention can be manually driven, that is, the surgeon pulls the piston rod 63 backward to store energy; it can also be driven by air pressure or hydraulic pressure; but more preferably, in order to enable the surgeon to operate the bone wax smear gun with one hand and without effort to improve efficiency, the driving mechanism 7 of the preferred embodiment includes a driving motor 71 and a driving gear 73, the rotating shaft gear 72 of the driving motor 71 is meshed with the driving gear 73; a rack 64 is provided on the piston rod 63, and the rack 64 is meshed with the driving gear 73, as shown in FIG. Figure 7 When the piston 62 of the piston rod 63 is at the most forward position in the cylinder 61, the drive gear 73 meshes with the teeth at the rear end of the rack 64; Figure 12 As shown, when the piston 62 of the piston rod 63 is at the rearmost position in the air cylinder 61, the driving gear 73 is engaged with the teeth at the front end of the rack 64. At this time, the energy storage spring 66 has the maximum energy storage, and the force of bone wax injection is also the maximum.

[0082] The regulating mechanism 9 of the present invention can be as follows Figure 8 In the example shown, the adjustment mechanism 9 includes an adjustment knob 91 and a control circuit 92. The adjustment knob 91 is disposed on the outside of the gun body 1, making it easy for the fingers of the operator holding the bone wax applicator to reach and adjust the position. The adjustment knob 91 is electrically connected to the control circuit 92, which is also electrically connected to the drive motor 71. The control circuit 92 controls the activation time of the drive motor 71 based on the adjustment position of the adjustment knob 91. The adjustment mechanism 9 of this example is simple to adjust, has sensitive control, and is not prone to errors or failures.

[0083] In order to make the ejection member have better performance when ejecting forward, reduce unnecessary resistance as much as possible, and better protect the driving mechanism 7 and increase its service life. Figure 7As shown, the drive mechanism 7 also includes a drive box 74, a lifting motor 75 and a threaded rod 76. The drive motor 71 and the drive gear 73 are installed in the drive box 74. The gun body 1 includes a left shell 11 and a right shell 12. A drive seat 15 is provided at the upper end of the right shell 12 of the gun body 1. After the drive box 74 is placed on the drive seat 15, it can only move in the up and down directions of the drive seat 15; the right half of the drive box 74 is used to place the drive motor 71, and the shaft gear 72 of the drive motor 71 is exposed outside the side wall of the drive box 74. The drive gear 73 is fixed to the side wall of the left half of the drive box 74 by bolts to align with the shaft gear 72 Engagement, a threaded hole 78 is provided in the middle position of the right half of the drive box 74, and a through hole 16 with a diameter larger than the threaded hole 78 is opened on the drive seat 15 at the position corresponding to the threaded hole 78. The upper end of the threaded rod 76 passes through the through hole 16 from the bottom of the through hole 16, and then screws into the threaded hole 78 from the bottom and passes out from the top to achieve connection with the threaded hole 78; the lower end of the threaded rod 76 is fixedly connected to the rotating shaft of the lifting motor 75 so that the rotating shaft drives the threaded rod 76 to rotate synchronously. A motor seat 17 is also provided on the right shell body 12 directly below the through hole 16 of the drive seat 15, and the lifting motor 75 is fixedly inserted into the motor seat 17. When the lifting motor 75 drives the drive box 74 to move downward to the set lower limit position (that is, the position when the lower surface of the drive box 74 contacts the supporting surface of the drive seat 15), the driving gear 73 is just in a position engaged with the rack 64, as shown in FIG. Figure 11 When the lifting motor 75 drives the drive box 74 to move upward to the set upper limit position, the drive gear 73 is disengaged from the rack 64, as shown Figure 9 shown.

[0084] In order to achieve better control performance and operational effects, in some embodiments, the drive mechanism 7 further includes a start button 77, which is disposed on the handle 14 outside the gun body 1. The drive mechanism 7 will not start operating until the start button 77 is pressed. Otherwise, even if the adjustment mechanism 9 is adjusted, the drive mechanism 7 is temporarily in a standby state. When the drive mechanism 7 is in the standby state, the drive box 74 is in the upper limit position, that is, the drive gear 73 is disengaged from the rack 64. When the start button 77 is pressed, the lifting motor 75 rotates forward to drive the drive box 74 downward. When the lifting motor 75 reaches the lower limit position, the lifting motor 75 stops rotating, and the drive motor 71 starts to drive the drive gear 73 to rotate. When the ejection member moves back to the set position, the drive motor 71 stops rotating, and the lifting motor 75 is restarted, and reversely drives the drive box 74 upward to the upper limit position.

[0085] The launching mechanism 8 of the present invention can be as follows Figure 6In the example shown, the firing mechanism 8 includes a trigger 81 and a pawl 82 structure. A ratchet 65 is correspondingly provided on the ejection member, and the ratchet 65 is arranged on the lower surface of the rod body of the piston rod 63. The pawl 82 structure includes a pawl plate 83, a pawl 82 and a torsion spring 86. The pawl 82 is connected to the pawl plate 83 in a unidirectional manner via a pin. The torsion spring 86 is sleeved on the pin so that the pawl 82 can automatically reset after rotation. When the ejection member moves backward, the ratchet 65 moves backward and hits the pawl 82. At this time, the pawl 82 will be pushed to overcome the elastic force of the torsion spring 86 and rotate backward in a unidirectional direction to lie down, so that the pawl 82 avoids. In this way, the pawl 82 or the ratchet 65 will not be easily damaged by long-term hard collisions, and the ejection member will not be stuck and unable to move backward. Figure 11 As shown; when the ejection member moves back to the set position and stops, the pawl 82 is reset and stands up under the action of the torsion spring 86, and engages with the ratchet 65 opposite to it. At this time, since the ejection member has a tendency to eject forward, that is, the ratchet 65 will move forward, but since the pawl 82 cannot rotate forward and lie down, the ratchet 65 is locked in this position, that is, the ejection member is locked in the energy storage position, as shown. Figure 12 As shown, at this time, the pawl 82 structure is engaged with the ratchet 65 at the front end of the piston rod 63, and the stored force of the piston rod 63 is the largest, that is, the ejection force of the bone wax is the largest.

[0086] like Figure 2 As shown, a placement position 18 is provided in the gun body 1, and a first connection position is provided at the placement position 18. The pawl plate 83 is placed on the placement position 18, and a second connection position is provided on the pawl plate 83. The two ends of the tension spring 89 are respectively connected to the first connection position and the second connection position, so that the pawl plate 83 can elastically move up and down in the placement position 18. When the trigger 81 is pulled, the tension spring 89 drives the pawl plate 83 to move downward, the pawl 82 disengages the ratchet 65, and the ejection member is ejected forward; when the trigger 81 is released, the pawl plate 83 is driven to move upward and reset; alternatively, when the trigger 81 is pulled, the pawl plate 83 is driven to move downward, the pawl 82 disengages the ratchet 65, and the ejection member is ejected forward; when the trigger 81 is released, the tension spring 89 drives the pawl plate 83 to move upward and reset.

[0087] Furthermore, the firing mechanism 8 of this example also includes a push plate 87, which cooperates with the trigger 81 to drive the push plate 87 to move backward when the trigger 81 is pressed. The upper part of the push plate 87 extends into the placement position 18 and is located below the pawl plate 83. The bottom of the pawl plate 83 is provided with a wedge block 85 protruding downward to abut against the push plate 87, and the upper part of the push plate 87 is correspondingly provided with a wedge-shaped recess 88 that cooperates with the wedge block 85; when the trigger 81 is not pressed, the wedge-shaped recess 88 of the push plate 87 is separated from the wedge block 85, and the bottom of the wedge block 85 is pressed against the upper plate of the push plate 87, so the pawl plate 83 is pushed upward, and at this time the tension spring 89 is stretched, and the pawl 82 cooperates with the ratchet, as shown in FIG. Figure 12 As shown; when the trigger 81 is pressed, the push plate 87 moves backward so that the wedge-shaped recess 88 moves to just below the wedge block 85. At this time, the tension spring 89 pulls the wedge block 85 downward into the wedge-shaped recess 88, so the pawl plate 83 also moves downward synchronously, so that the pawl 82 is disengaged from the ratchet wheel, as shown Figure 13 In order to realize that the trigger 81 can be automatically reset, a spring can be set at the rear end of the trigger 81 to reset it, or a spring can be set at the rear end of the push plate 87 to drive the push plate 87 and the trigger 81 to reset simultaneously.

[0088] like Figure 2 As shown, the handle 14 of the gun body 1 of the present invention is also provided with a battery box and a circuit board 19. The battery in the battery box can be an ordinary cylindrical battery or a rechargeable lithium battery block, etc. The circuit board 19 is electrically connected to the battery box and each motor and the start button 77 to achieve controllable power supply.

[0089] The following is a detailed description of a specific embodiment.

[0090] like Figures 1-13 As shown, the bone wax smear gun of this embodiment, which automatically fills and ejects bone wax, includes a gun body 1, a gun head 2, a bone wax mechanism 3, a guide tube 5, a control mechanism 4, an ejection mechanism 6, a drive mechanism 7, a launch mechanism 8, and an adjustment mechanism 9. The gun head 2 is detachably connected to the front end of the barrel 13 of the gun body 1, and the other mechanisms are installed in the gun body 1. The gun head 2 of this embodiment includes a straight tube portion 21 and an elbow portion 22, wherein the elbow portion 22 is universally connected to the straight tube portion 21. The universal adjustment of the elbow portion 22 and the straight tube portion 21 can be manual or electronically controlled.

[0091] The bone wax mechanism 3 includes a bone wax bin 32 and a bone wax pushing device. The bone wax bin 32 includes a bin body 321 and a bin cover 322. The bin cover 322 is rotatably connected to the bin body 321. A heating tube 36 is provided on the inner wall of the bin cover 322. The bin body 321 is provided with openings 323 at both the front and rear ends. The front end of the bone wax tube 31 is designed as a contracted neck. A wax outlet nozzle 311 is provided at the front end of the contracted neck. The outer diameter of the wax outlet nozzle 311 is slightly larger than the inner diameter of the conduit 5, and the outer wall of the wax outlet nozzle 311 is designed as a serrated surface. The rear end of the conduit 5 is tightly connected to the wax outlet nozzle 311 by means of an extrusion installation. After the bone wax tube 31 is placed in the bin body 321, the contracted neck extends from the opening 323 at the front end of the bin body 321 to the front of the bone wax bin 32. When the heating tube 36 is energized, the bone wax in the bone wax tube 31 is heated. The bone wax pushing device includes a push rod 33, a pushing gear 34, and a pushing motor 35. The pushing motor 35 and the pushing gear 34 are mounted in the gun body 1 behind the bone wax bin 32. The rotating shaft gear 72 of the pushing motor 35 meshes with the pushing gear 34. The push rod 33 is provided with a rack 64 that meshes with the pushing gear 34. The front end of the push rod 33 extends through the rear end opening 323 of the bin body 321 into the bone wax bin 32 to squeeze the bone wax tube 31. The bottom cover 312 of the bone wax tube 31 of this embodiment is slidably connected to the bone wax tube 31. After the front end of the push rod 33 extends into the bone wax bin 32, it abuts against the bottom cover 312. When the bottom cover 312 is pressed forward, the bone wax is squeezed out of the wax outlet 311 at the front end of the bone wax tube 31.

[0092] After the rear end of the catheter 5 is connected to the wax outlet nozzle 311 of the bone wax tube 31, its front end extends from the front end position of the gun barrel 13 of the gun body 1 into the gun barrel 13, and then enters the gun head 2 along the gun barrel 13. Finally, the front end outlet end of the catheter 5 directly extends to the front end inner cavity of the gun head 2.

[0093] The control mechanism 4 includes an extrusion button 41 and a retraction button 42; when the surgeon presses the extrusion button 41, the push motor 35 rotates forward to drive the push rod 33 forward to squeeze out the bone wax in the bone wax tube 31; when the surgeon presses the retraction button 42, the push motor 35 rotates reversely to drive the push rod 33 to move out of the bone wax bin 32. At this time, the bone wax tube 31 can be easily taken out of the bone wax bin 32 and replaced.

[0094] The ejection mechanism 6 includes a piston rod 63 as an ejection part, an air cylinder 61 and an energy storage spring 66. The front end of the piston rod 63 is provided with a piston 62 to fit airtightly with the inner wall of the air cylinder 61. The rear end of the piston rod 63 is connected to the driving mechanism 7 so that the driving mechanism 7 drives the piston rod 63 to move backward and store energy; the energy storage spring 66 is sleeved on the piston rod 63, and its two ends respectively press against the position between the rear end face of the piston 62 and the rear end face wall of the air cylinder 61.

[0095] The driving mechanism 7 includes a driving motor 71, a driving gear 73, a driving box 74, a lifting motor 75, a threaded rod 76, and a starting button 77. The driving motor 71 and the driving gear 73 are installed in the driving box 74. The driving box 74 can be moved up and down on the driving seat 15 of the gun body 1. The lifting motor 75 is fixedly mounted in the motor seat 17 of the gun body 1. The lower end of the threaded rod 76 is fixedly connected to the rotating shaft of the lifting motor 75 and the lower end is screwed into the threaded hole 78 opened on the driving box 74. The starting button 77 is arranged on the handle 14 outside the gun body 1, which is convenient for the thumb or middle finger to press. After the starting button 77 is pressed, the lifting motor 75 drives the threaded rod 76 to rotate, and the threaded rod 76 then drives the driving box 74 to move downward. When the driving box 74 moves down to the lower limit position, the lifting motor 75 stops rotating and the driving motor 71 drives the driving gear 73 to rotate. When the driving motor 71 stops rotating, the lifting motor 75 starts reversing and drives the driving box 74 to move up to the upper limit position.

[0096] The firing mechanism 8 includes a trigger 81, a pawl plate 83, a pawl 82, a torsion spring 86, a push plate 87, and a reset spring 84. The lower surface of the rod body of the piston rod 63 is provided with a ratchet 65 that meshes with the pawl 82. The pawl 82 is connected to the pawl plate 83 in a unidirectional rotation through a pin. The torsion spring 86 is sleeved on the pin so that the pawl 82 can automatically reset after unidirectional rotation. A placement position 18 is provided in the gun body 1. A first connecting position is provided at the placement position 18. The pawl plate 83 is placed on the placement position 18. A second connecting position is provided on the pawl plate 83. The two ends of the tension spring 89 are respectively connected to the first connecting position and the second connecting position to realize that the pawl plate 83 can elastically move up and down in the placement position 18; push The plate 87 cooperates with the trigger 81 to drive the push plate 87 to move backward when the trigger 81 is pulled. The upper part of the push plate 87 extends into the placement position 18 and is located below the pawl plate 83. The bottom of the pawl plate 83 is provided with a wedge block 85 protruding downward to abut against the push plate 87, and the upper part of the push plate 87 is correspondingly provided with a wedge-shaped recess 88 that cooperates with the wedge block 85; the reset spring 84 is arranged in the handle of the gun body 1, one end of which abuts against the rear surface of the push plate 87, and the other end abuts against the wall near the rear end of the handle. The reset spring 84 can drive the push plate 87 and the trigger 81 to reset forward at the same time after releasing the trigger 81, thereby moving the pawl plate 83 upward again to the initial state where the pawl 82 can engage with the ratchet teeth 65.

[0097] The adjustment mechanism 9 includes an adjustment knob 91 and a control circuit 92. The adjustment knob 91 is arranged on the outside of the gun body 1, so that the fingers of the hand holding the bone wax smear gun in the surgical hospital can reach it for adjustment. The adjustment knob 91 is electrically connected to the control circuit 92, and the drive motor 71 is electrically connected to the control circuit 92. The control circuit 92 controls the starting time of the drive motor 71 according to the adjustment position of the adjustment knob 91.

[0098] The operation of the bone wax smear gun that automatically fills and ejects bone wax in this embodiment is as follows:

[0099] (1) Connect the gun head 2 to the gun body 1, and adjust the elbow part 22 manually or electrically according to the position of the bleeding point on the bone surface during surgery, install the bone wax tube 31 into the bone wax bin 32, and connect the catheter 5. Turn on the power, and the heating tube 36 starts to heat the bone wax in the bone wax tube 31. At this point, all the mechanisms in the gun body 1 are in the initial state. At this time, the gun head 2 can be inserted into the patient's body so that the open end of the elbow part 22 can be aligned with the bleeding point. Figure 9 shown.

[0100] (2) The surgeon presses the extrusion button 41 to move the push rod 33 forward and squeeze the bottom cover 312 of the bone wax tube 31, thereby squeezing the bone wax and filling it into the front end cavity of the gun head 2. Figure 10 shown.

[0101] (3) According to the environmental conditions around the bone surface, use your fingers to turn the adjustment knob 91 to set the required bone wax ejection force.

[0102] (4) Hold the bone wax smear gun with one hand, insert the gun head 2 into the body of the surgical patient, and make the front end opening of the gun head 2 close to and align with the bone surface that needs to be smeared with bone wax.

[0103] (5) Press the start button 77 with your finger, and the lifting motor 75 starts to rotate forward, driving the drive box 74 to move downward as a whole until it moves to the lower limit position, that is, when the drive gear 73 is just engaged with the rack 64 on the piston rod 63, the lifting motor 75 stops rotating, and at the same time the control circuit 92 controls the drive motor 71 to start working, and the drive motor 71 drives the drive gear 73 to rotate, so that the piston rod 63 starts to move backward, and the piston rod 63 starts to compress the energy storage spring 66 to store energy, as shown in FIG. Figure 11 As shown; when the working time of the drive motor 71 is the same as the time signal obtained by the control circuit 92, the control circuit 92 controls the drive motor 71 to stop working, and at the same time the lifting motor 75 is started again, and reverses to drive the drive box 74 to move up to the upper limit position, so that the drive gear 73 is disengaged from the rack 64; at this time, the piston rod 63 is locked in the energy storage position because the pawl 82 is engaged with the ratchet 65, and is in a state ready for ejection, as shown Figure 12 shown.

[0104] (6) The surgeon depresses the trigger 81, which moves backward and drives the push plate 87 to move backward. The return spring 84 is compressed and stores energy, and the push plate 87 moves backward so that the wedge-shaped recess 88 moves to the bottom of the wedge block 85. The tension spring 89 pulls the wedge block 85 downward into the wedge-shaped recess 88, and the pawl plate 83 also moves downward synchronously. Therefore, at this time, the pawl 82 is disengaged from the ratchet wheel. Figure 13As shown; the piston rod 63 is rapidly ejected forward under the elastic force of the energy storage spring 66, squeezing the gas in the air cylinder 61 in front of the piston 62 into the inner cavity of the gun head 2, and ejecting the bone wax at the front end of the inner cavity of the gun head 2 by air pressure, so as to achieve smearing of the bone surface at the bleeding point, without the need for the surgeon to manually perform the bone wax smearing operation, and the operation is convenient and efficient.

[0105] If it is found that the amount of bone wax applied at that time is insufficient, steps (2)-(6) can be repeated to refill and eject the bone wax. There is no need to take out the bone wax application gun, refill the gun head 2 manually, and then insert it into the patient's body for application again. Instead, the bone wax is automatically filled, which effectively avoids the risk of cross infection caused by manual filling, and can ensure the effect of rapid hemostasis, improve efficiency, and reduce operation time.

[0106] In addition, the bone wax smearing gun is provided with an adjustment mechanism 9, which can adjust and control the backward movement distance of the ejection part of the ejection mechanism 6, thereby realizing the controllable force of the bone wax ejected from the gun head 2. Therefore, in different bone surface surrounding environments, the surgeon can independently adjust the force of the bone wax ejection according to the environmental conditions, ensuring that each time the bone wax is ejected, it can be stably applied to the bone surface without falling, achieving an effective hemostatic effect, thereby improving efficiency and reducing operation time.

[0107] Throughout this specification, reference to terms such as "embodiment" or "example" indicates that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0108] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A bone wax smear gun that automatically fills and ejects bone wax, comprising a gun body and a gun head, wherein the gun head is connected to the front end of a gun barrel of the gun body, characterized in that: Also includes: A bone wax mechanism, which is arranged on the gun body and is used for installing a bone wax tube containing bone wax and filling the bone wax in the bone wax tube into the inner cavity of the gun head; a catheter, the rear end of which is connected to the opening of the bone wax tube, and the front end of which extends into the gun head; A control mechanism, the control mechanism being arranged on the gun body and located at a convenient position for operation, and the control mechanism being used to control the bone wax mechanism to extrude the bone wax in the bone wax tube; an ejection mechanism, the ejection mechanism being disposed in the gun barrel and comprising an ejection member, wherein the ejection mechanism stores energy when the ejection member moves backward and ejects the bone wax extruded into the gun head from the gun head when the ejection member moves forward; The bone wax mechanism includes a bone wax bin and a bone wax pushing device. The bone wax bin is used to place the bone wax tube. The bone wax pushing device is arranged behind the bone wax bin and can be extended into the bone wax bin to squeeze the bone wax tube, thereby enabling the bone wax smearing gun to automatically fill with bone wax.

2. The bone wax smearing gun that automatically fills and ejects bone wax according to claim 1, characterized in that: The bone wax pushing device includes a push rod, a pushing gear and a pushing motor. The pushing motor and the pushing gear are installed in the gun body behind the bone wax bin. The rotating shaft gear of the pushing motor is engaged with the pushing gear. The push rod is provided with a rack that is engaged with the pushing gear. The front end of the push rod extends into the bone wax bin to squeeze the bone wax tube.

3. The bone wax smearing gun that automatically fills and ejects bone wax according to claim 2, characterized in that: The bottom cover of the bone wax tube is slidably connected to the bone wax tube, and the front end of the push rod extends into the bone wax bin and presses against the bottom cover; when the bottom cover is pressed forward, the bone wax is squeezed out from the front end of the bone wax tube.

4. The bone wax smearing gun that automatically fills and ejects bone wax according to claim 2, characterized in that: The control mechanism includes an extrusion button and a retraction button; when the extrusion button is activated, the push motor rotates forward to drive the push rod forward to squeeze out the bone wax in the bone wax tube; when the retraction button is activated, the push motor rotates backward to drive the push rod backward to move out of the bone wax bin.

5. The bone wax smearing gun that automatically fills and ejects bone wax according to claim 1, characterized in that: The front end of the bone wax bin is provided with a through opening, and the front end of the bone wax tube is designed as a contraction neck. After the bone wax tube is placed in the bone wax bin, the contraction neck extends from the through opening to the front of the bone wax bin; the rear end of the catheter is sleeved on the wax outlet nozzle at the front end of the contraction neck.

6. The bone wax smearing gun that automatically fills and ejects bone wax according to claim 1, characterized in that: The bone wax bin comprises a bin body and a bin cover, wherein the bin cover is connected to the bin body in a rotatable and openable manner, and a heating element is provided on the inner wall of the bin body and / or the bin cover, and the heating element is used to heat the bone wax in the bone wax tube.

7. The bone wax smearing gun that automatically fills and ejects bone wax according to claim 1, characterized in that: The gun head comprises a straight tube portion and an elbow portion, and the elbow portion is universally connected to the straight tube portion.

8. The bone wax smearing gun that automatically fills and ejects bone wax according to claim 7, characterized in that: The gun further comprises a universal controller, which is arranged on the outer wall of the gun body and is electrically connected to the elbow portion. The elbow portion is controlled to rotate in a universal direction relative to the straight pipe portion by the universal controller.

9. The bone wax smearing gun that automatically fills and ejects bone wax according to claim 1, characterized in that: The gun body is also provided with: A driving mechanism, the driving mechanism being disposed in the gun body and configured to drive the ejection member to move backward and store energy; a firing mechanism, the firing mechanism being used to lock or release the energy storage state of the ejection member, and releasing the energy storage state of the ejection mechanism when the trigger of the firing mechanism is pulled; An adjusting mechanism is provided in the gun body and is used to adjust the backward movement distance of the ejection member to change the force with which the bone wax is ejected from the gun head.

10. The bone wax smearing gun that automatically fills and ejects bone wax according to claim 1, characterized in that: The bone wax pushing device is replaced by a bone wax squeezing device. The bone wax tube is a soft and deformable tube. The bone wax squeezing device is used to squeeze the bone wax tube to squeeze the bone wax out of the wax outlet nozzle.

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