Bone wax coating gun capable of automatically filling and ejecting bone wax

Abstract

The invention provides a bone wax coating gun capable of automatically filling and ejecting bone wax, which comprises a gun body, a gun head, a bone wax mechanism, a guide pipe and a control mechanism, and is characterized in that 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 pipe filled with bone wax and filling the bone wax in the bone wax pipe into an inner cavity of the gun head; the rear end of the conduit is connected with the opening of the bone wax tube, and the front end of the conduit extends into the gun head; and the control mechanism is used for controlling the bone wax mechanism to extrude out the bone wax in the bone wax pipe. Therefore, the bone wax smearing gun can be used for automatically filling the bone wax, the risk of cross infection caused by manual filling is effectively avoided, the operation of one-time implantation and multiple smearing can be carried out according to the operation condition, the rapid hemostasis effect can be guaranteed, the efficiency is improved, and the operation time is shortened.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a bone wax coating gun which can automatically fill and eject bone wax. Background Art

[0002] Bone wax is a material that uses physical methods to block the bleeding of capillaries in the bone marrow. It can be used to stop bleeding in various emergency patients. When using bone wax, you need to press and apply it on the bleeding bone surface.

[0003] At present, in orthopedic surgery, the method of applying bone wax to the bone surface to stop bleeding is to use a nerve stripping ruler, curved forceps, etc. to fix a small piece of bone wax and apply it. However, when there is blood or other tissue fluid on the bone surface, it is easy to cause the applied bone wax to be unstable and fall off; or when the surface of the bone surface is uneven, the application and hemostasis effect is often poor. In addition, it is difficult to control the angle and strength of the application using nerve stripping rulers, curved forceps, etc., the operation is cumbersome, and the efficiency is low, which prolongs the operation time and increases intraoperative bleeding.

[0004] In the prior art, such as the utility model patent with publication number CN216725500U, which discloses a bone wax smear gun, although it can replace the above-mentioned nerve stripping ruler, curved forceps and other tools, so as to improve the operating efficiency and make the operation simple and quick. However, since there is no bone wax storage device on the bone wax smear gun, it is necessary to manually fill the bone wax into the syringe each time it is used, and then use the inner needle to push it out. But 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 and manually fill it again and then push it out again to apply; or if bone wax needs to be applied to 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 can automatically fill bone wax and eject bone wax. Summary of the invention

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

[0007] The technical solution of the present invention is achieved in this way:

[0008] The bone wax smearing gun for automatically filling and ejecting bone wax described in the present invention comprises 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, 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 for 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 at 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, 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 meshed with the pushing gear. The push rod is provided with a rack that is meshed 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 then 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 reversely to drive the push rod to move backward 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 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.

[0014] In some embodiments, the bone wax bin includes a bin body and a bin cover, the bin cover is rotatably connected to the bin body, 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, which is arranged on the outer wall of the gun body, and is electrically connected to the elbow part, and the elbow part is controlled to rotate universally relative to the straight pipe part through 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 energy storage state of the ejection member, and when the trigger of the launching mechanism is pulled, the energy storage state of the ejection mechanism is released; 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 of the bone wax 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 the 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 an operation, 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 in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 2 It 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 It is a cross-sectional structural schematic diagram of a bone wax mechanism according to one embodiment of the present invention;

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

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

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

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

[0029] Figure 8 It is a schematic diagram of the exploded structure of the adjustment mechanism of one embodiment of the present invention;

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

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

[0032] Fig.11 for Fig. 9 A structural schematic diagram of a bone wax gun of an embodiment in which the piston rod is gradually accumulating force;

[0033] Fig.12 for Fig. 9 A schematic structural diagram of the piston rod of the bone wax gun of the embodiment in the maximum force storage state;

[0034] Fig.13 for Fig. 9 A schematic structural diagram of the bone wax gun of the embodiment when the trigger is pulled down.

[0035] Reference numerals:

[0036] Gun body 1;

[0037] Left housing 11, right housing 12, gun 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 part 21, elbow part 22, universal connector 23;

[0040] Bone wax mechanism 3;

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

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

[0043] Bin body 321, bin cover 322, through 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] Driving motor 71, rotating shaft gear 72, driving gear 73, driving box 74, lifting motor 75, threaded rod 76, starting 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] Embodiments of the present invention are described in detail below, examples of which 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0056] In the description of the present invention, it is necessary to understand that the terms "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features, and are used to distinguish the described 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 clearly specified and limited, the terms "matching", "connecting", "connection", and "installation" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] The bone wax smearing gun that automatically fills and ejects bone wax according to the present invention will be described below in conjunction with 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 a gun barrel 13 of the gun body 1, and further comprising a bone wax mechanism 3 and a catheter 5, wherein 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 catheter 5 is connected to the opening of the bone wax tube 31, and the front end of the catheter 5 extends into the gun head 2, and the bone wax mechanism 3 cooperates with the catheter 5 to realize filling the bone wax in the bone wax tube 31 into the inner cavity of the gun head 2, so as to prepare for the bone wax smearing gun to eject or eject bone wax. The bone wax mechanism 3 can realize the filling of bone wax through the bone wax smear gun, without the need for the operator to take a small portion of bone wax from the container and then fill it into the inner cavity of the gun head 2 from the front end opening of the gun head 2, so the risk of cross infection caused by manual filling can be effectively avoided, and the process of filling through the bone wax mechanism 3 does not require the bone wax smear gun to be taken out from the surgical instrument channel of the surgical patient, so the operation of one-time insertion and multiple smearing can be realized, which effectively solves the problem that if the amount of bone wax filled in a single time of the existing bone wax smear gun does not meet the hemostasis demand, the bone wax gun needs to be taken out and manually refilled and then smeared. It is guaranteed to achieve a rapid hemostasis effect, improve efficiency, and reduce operation 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 at 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 injection or ejection force being weakened due to friction resistance, in some embodiments, the front end outlet end of the catheter 5 is arranged at the front end 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, Figure 3 In the example shown, the catheter 5 of the 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 end outlet of the catheter 5 directly extends to the front end inner cavity of the gun head 2. Such a design can avoid the catheter 5 being exposed outside 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 catheter 5 can also be set outside and extend forward along the outer wall of the gun head 2, and finally its front end outlet extends into the front end inner cavity of the gun head 2. Such a design requires the catheter 5 to be fixed to the outer wall of the gun head 2, and the diameter of the gun head 2 needs to be reduced.

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

[0065] Specifically, Figure 2 In the example shown, the bone wax mechanism 3 of the example includes a bone wax bin 32 and a bone wax pushing device, wherein the bone wax bin 32 is used to place the bone wax tube 31, and 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; it can also 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 meshed with the pushing gear 34, and 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 bone wax extrusion amount to avoid too much or too little bone wax being filled into the inner cavity of the gun head 2, thereby causing 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 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, 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 the 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, etc. 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, and the bone wax can be squeezed out of the wax outlet nozzle 311 by squeezing the bone wax tube 31 through the bone wax squeezing device.

[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 pressed forward, the bone wax is squeezed out from the wax outlet 311 at the front end of the bone wax tube 31.

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

[0072] It is understandable that the diameter of the gun head 2 must be small, because when in use, the gun head 2 is inserted into the body of the surgical patient, so that the front opening of the gun head 2 is close to and aligned with the bone surface to which bone wax needs to be applied. The catheter 5 also needs to be inserted into the body of the surgical patient, so the diameter of the catheter 5 is required to be smaller. Therefore, in order to facilitate the connection between the rear end of the catheter 5 and the opening of the bone wax tube 31, in some embodiments, the front end of the bone wax tube 31 is designed as 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 inner diameter of the catheter 5, and the outer wall of the wax outlet nozzle 311 is designed as a serrated surface. The rear end of the catheter 5 is sleeved on the wax outlet nozzle 311 by extrusion installation to achieve a tight connection. In order to facilitate the connection between the catheter 5 and 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. After the bone wax tube 31 is placed in the bone wax bin 32, the contraction neck extends from the through port 323 to the front of the bone wax bin 32.

[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 rotatably connected to the bin body 321. Figure 3 shown.

[0074] Since bone wax is solid, it is difficult to get the bone wax from the small conduit 5 into the inner cavity of the gun head 2. However, if the bone wax is in a temperature range of about 40 to 50 degrees, it is in a solid-liquid mixture state. In this state, its fluidity and plasticity are both good, and it can be easily squeezed into the conduit 5 and finally sealed in the inner cavity of the gun head 2. Therefore, in order to improve the performance of the bone wax smearing gun, the present invention is provided with a heating element on the inner wall of the bin body 321 and / or the bin cover 322, and the heating element is used to heat the bone wax in the bone wax tube 31.

[0075] It is understandable that the heating element 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 arranged on the bin cover 322, and the heating tube 36 is arranged back and forth along the inside of the bin cover 322; similarly, a heating tube 36 with the same arrangement pattern can also be arranged inside the bin body 321. Thus, the bone wax bin 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 through a wire. When the bone wax tube 31 is placed in the bone wax bin 32 and the bin cover 322 is closed, and the power switch of the bone wax smearing gun is turned on, the heating tube 36 starts to heat the bone wax; when it is heated to the set temperature, it is kept constant.

[0076] Since the bleeding points of the bone surface may be at the top surface, side surface, etc. during the operation, in order to align the opening 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 portion 21 and an elbow portion 22, wherein the elbow portion 22 is connected to the straight tube portion 21 via a universal connector 23. That is, the elbow portion 22 can be rotated to form the same straight line with the straight tube portion 21, or in a vertical state, or other obtuse or acute angles. Figure 4 In the example shown, the universal connector 23 is a deformable pleated portion, and the straight tube portion 21 and the elbow portion 22 are integrally formed therewith.

[0077] It can be understood that the universal adjustment of the elbow portion 22 and the straight tube portion 21 can be manually adjusted, that is, after the bleeding point on the bone surface is found during surgery, before the bone wax smear gun is placed, the elbow portion 22 is adjusted according to the position of the bleeding point, so that the opening end of the elbow portion 22 can just align with the bleeding point after the gun head 2 is inserted into the bone surface position. Of course, it can also be designed to be electrically controlled, such as setting a universal controller (not shown in the figure) on the outer wall of the gun body 1, the universal controller is electrically connected to the elbow portion 22, and the universal controller controls the elbow portion 22 to rotate relative to the straight tube portion 21 in a universal direction, thereby adjusting the angle of the elbow portion 22.

[0078] In addition, the present invention also includes an ejection mechanism 6, which is arranged in the gun barrel 13, and the ejection mechanism 6 includes an ejection part. When the ejection part moves backward, the ejection mechanism 6 stores energy, and when the ejection part moves forward, the bone wax is ejected from the gun head 2. Therefore, there is no need to perform cumbersome operations like tools such as nerve stripping rulers and curved forceps. It is only necessary to align the front end of the gun head 2 with the bone surface, and use the force generated by the forward movement of the ejection part to eject the bone wax onto the bone surface. The operation is convenient and efficient. There is also a driving mechanism 7, which is arranged in the gun barrel 13, and the driving mechanism 7 is used to drive the ejection part to move backward and store energy; a launching mechanism 8, which is used to lock or release the energy storage state of the ejection part. When the trigger 81 of the launching mechanism 8 is pulled down, the energy storage state of the ejection mechanism 6 is released, and the ejection part can move forward to eject the bone wax from the gun head 2, and there is no need for the surgeon to manually perform the bone wax smearing operation.

[0079] In order to achieve a better effect, the present invention also includes an adjustment mechanism 9, which is arranged in the gun body 1. The adjustment mechanism 9 is used to adjust the backward movement distance of the ejection member, that is, the farther the ejection member moves backward, the greater the energy storage, so when the trigger 81 is pulled, the ejection member will eject forward with greater force and faster speed, so the force of the bone wax ejected from the gun head 2 will also be greater. Therefore, the force of the bone wax ejected from the gun head 2 can be adjusted and controlled by the adjustment mechanism 9, so the surgeon can adjust the force of the bone wax ejection according to the environmental conditions, to ensure that each time the bone wax is ejected, it can be stably applied to the bone surface without falling, to achieve an effective hemostatic effect, thereby improving efficiency and reducing operation 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 face wall is formed at the rear end. The ejection member 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 rod body part of the rear end of the piston rod 63 extending outside the gas cylinder 61 is connected to the driving mechanism 7, and 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 surface of the piston 62 and the rear end surface 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 to 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 more preferred embodiment includes a driving motor 71 and a driving gear 73, and 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, such as 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; Fig.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 meshes 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 the bone wax injection is also the maximum.

[0082] The adjustment mechanism 9 of the present invention can be as follows Figure 8 In the example shown, the adjustment mechanism 9 of the example includes an adjustment knob 91 and a control circuit 92. The adjustment knob 91 is arranged outside the gun body 1, so that the fingers of the hand holding the bone wax smear gun in the surgery 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 start-up time of the drive motor 71 according to the adjustment position of the adjustment knob 91. The adjustment mechanism 9 of the example is simple in adjustment, sensitive in control, and not prone to errors and failures.

[0083] In order to make the ejection member have better performance when ejecting forward, to reduce unnecessary resistance as much as possible, and to better protect the driving mechanism 7 and increase its service life. Figure 7As shown, the driving mechanism 7 also includes a driving box 74, a lifting motor 75 and a threaded rod 76. The driving motor 71 and the driving gear 73 are installed in the driving box 74. The gun body 1 includes a left shell 11 and a right shell 12. A driving seat 15 is provided at the upper end of the right shell 12 of the gun body 1. After the driving box 74 is placed on the driving seat 15, it can only move in the up and down directions of the driving seat 15; the right half of the driving box 74 is used to place the driving motor 71, and the shaft gear 72 of the driving motor 71 is exposed outside the side wall of the driving box 74. The driving gear 73 is fixed to the side wall of the left half of the driving box 74 by bolts to be aligned 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 provided at the position corresponding to the threaded hole 78 on the drive seat 15. The upper end of the threaded rod 76 passes through the through hole 16 from below, then screws into the threaded hole 78 from below and passes out from above 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 just 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 (i.e., 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. Fig.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 Fig. 9 shown.

[0084] In order to achieve better control performance and operation effect, in some embodiments, the drive mechanism 7 also includes a start button 77, which is arranged on the handle 14 outside the gun body 1. Only when the start button 77 is pressed, the drive mechanism 7 will start to work, 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 as a whole, 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 to move downward, until it moves downward to 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 started again, and reverses to drive the drive box 74 to move 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 of the example includes a trigger 81 and a pawl 82 structure, and 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 through a pin shaft, and the torsion spring 86 is sleeved on the pin shaft 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 manner, so that the pawl 82 avoids. In this way, the pawl 82 or the ratchet 65 is not easily damaged due to long-term hard collision, and the ejection member will not be stuck and unable to move backward. Fig.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 meshes 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 in FIG. Fig.12 As shown, at this time, the pawl 82 structure is meshed with the ratchet tooth 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 be elastically moved up and down in the placement position 18. When the trigger 81 is pressed, the tension spring 89 will drive the pawl plate 83 to move downward, the pawl 82 will be separated from the ratchet 65, and the ejection member will be ejected forward; when the trigger 81 is released, the pawl plate 83 is driven to move upward and reset; or, when the trigger 81 is pressed, the pawl plate 83 will be driven to move downward, the pawl 82 will be separated from the ratchet 65, and the ejection member will be ejected forward; when the trigger 81 is released, the tension spring 89 will drive 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 wheel, as shown in FIG. Fig.12 As shown; when the trigger 81 is pulled, the push plate 87 moves backward so that the wedge-shaped recess 88 moves to the bottom of 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 in FIG. Fig.13 In order to realize that the trigger 81 can be automatically reset, a spring can be arranged at the rear end of the trigger 81 to reset it, or a spring can be arranged at the rear end of the push plate 87 to drive the push plate 87 and the trigger 81 to reset at the same time.

[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 a common 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 Figure 1-Figure 13 As shown, the bone wax smear gun for automatically filling and ejecting bone wax in this embodiment comprises a gun body 1, a gun head 2, a bone wax mechanism 3, a catheter 5, a control mechanism 4, an ejection mechanism 6, a driving mechanism 7, a launching mechanism 8, and an adjusting mechanism 9, wherein the gun head 2 is detachably connected to the front end of the gun barrel 13 of the gun body 1, and other mechanisms are installed in the gun body 1. The gun head 2 of this embodiment comprises a straight tube portion 21 and an elbow portion 22, wherein the elbow portion 22 is universally connected to the straight tube portion 21, and the universal adjustment of the elbow portion 22 and the straight tube portion 21 can be manually adjusted or electrically controlled.

[0091] The bone wax mechanism 3 comprises a bone wax bin 32 and a bone wax pushing device, wherein the bone wax bin 32 comprises a bin body 321 and a bin cover 322, the bin cover 322 is connected to the bin body 321 in a rotatable manner, a heating tube 36 is arranged on the inner wall of the bin cover 322, and the front and rear ends of the bin body 321 are provided with through openings 323. The front end of the bone wax tube 31 is designed as a contraction neck, and a wax outlet nozzle 311 is arranged at the front end of the contraction neck, the outer diameter of the wax outlet nozzle 311 is slightly larger than the inner diameter of the catheter 5, and the outer wall of the wax outlet nozzle 311 is designed as a serrated surface, and the rear end of the catheter 5 is sleeved on the wax outlet nozzle 311 by extrusion installation to achieve a tight connection; after the bone wax tube 31 is placed in the bin body 321, the contraction neck extends from the through opening 323 at the front end of the bin body 321 to the front of the bone wax bin 32, and when the heating tube 36 is powered on, the bone wax in the bone wax tube 31 can be heated. The bone wax pushing device comprises 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 72 of the pushing motor 35 meshes with the pushing gear 34. The push rod 33 is provided with a rack 64 meshing with the pushing gear 34. The front end of the push rod 33 extends from 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 in the bone wax tube 31. After the front end of the push rod 33 extends into the bone wax bin 32, it presses against the bottom cover 312. When the bottom cover 312 is pressed forward, the bone wax is squeezed out from 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, and 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, and the bone wax tube 31 can be easily taken out of the bone wax bin 32 for replacement.

[0094] The ejection mechanism 6 includes a piston rod 63 as an ejection member, an air cylinder 61 and an energy storage spring 66. A piston 62 is provided at the front end of the piston rod 63 to fit tightly 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 are respectively pressed against the position between the rear end surface of the piston 62 and the rear end surface 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 installed on the driving seat 15 of the gun body 1 so as to be movably installed up and down. The lifting motor 75 is fixedly installed 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 provided on the driving box 74. The starting button 77 is arranged on the handle 14 outside the gun body 1 for convenient pressing by the thumb or middle finger. 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 downward 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 to reverse and drives the driving box 74 to move upward 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 correspondingly 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 shaft. The torsion spring 86 is sleeved on the pin shaft so that the pawl 82 can automatically reset after unidirectional rotation. A placement position 18 is provided in the gun body 1. A first connection position is provided at the placement position 18. The pawl plate 83 is placed on the placement position 18. 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 to realize that the pawl plate 83 can be elastically moved up and down at the placement position 18; the push plate 87 is provided with a tension spring 89. The plate 87 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; 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 of the handle near the rear end. 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 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 start-up time of the drive motor 71 according to the adjustment position of the adjustment knob 91.

[0098] The operation of the bone wax smearing gun which 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 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 body of the surgical patient so that the open end of the elbow 22 can be aligned with the bleeding point, as shown in FIG. Fig. 9 shown.

[0100] (2) The surgeon presses the extrusion button 41 to move the push rod 33 forward to 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. Fig.10 shown.

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

[0102] (4) Holding the bone wax smear gun with one hand, insert the gun head 2 into the body of the surgical patient, 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.

[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 and the rack 64 on the piston rod 63 are just meshed, 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, such as Fig.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 of being ready for ejection, as shown in FIG. Fig.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. Fig.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 gas cylinder 61 located in front of the piston 62 into the inner cavity of the gun head 2, and ejecting the bone wax located at the inner cavity of the front end of the gun head 2 through the 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, manually refill the gun tip 2, and then insert it into the patient's body for further application. Instead, the bone wax can be automatically filled, effectively avoiding the risk of cross infection caused by manual filling, and ensuring the effect of rapid hemostasis, thereby improving efficiency and reducing operation time.

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

[0107] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0108] Although the 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 present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A bone wax smearing 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 therein, and for 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 is arranged on the gun body and is located at a position convenient for operation. The control mechanism is used to control the bone wax mechanism to extrude the bone wax in the bone wax tube.

2. The bone wax smearing gun for automatically filling and ejecting bone wax according to claim 1, characterized in that: The bone wax mechanism comprises 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 extend into the bone wax bin to squeeze the bone wax tube.

3. The bone wax smearing gun for automatically filling and ejecting bone wax according to claim 2, 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 meshed with the pushing gear. The push rod is provided with a rack that is meshed with the pushing gear. The front end of the push rod extends into the bone wax bin to squeeze the bone wax tube.

4. The bone wax smearing gun for automatically filling and ejecting bone wax according to claim 3, 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 then 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.

5. The bone wax smearing gun for automatically filling and ejecting bone wax according to claim 3, 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 reversely to drive the push rod backward to move out of the bone wax bin.

6. The bone wax smearing gun for automatically filling and ejecting bone wax according to claim 2, 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.

7. The bone wax smearing gun for automatically filling and ejecting bone wax according to claim 2, 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 arranged 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.

8. The bone wax smearing gun for automatically filling and ejecting 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.

9. The bone wax smearing gun for automatically filling and ejecting bone wax according to claim 8, characterized in that: It also includes a universal controller, which is arranged on the outer wall of the gun body and is electrically connected to the elbow part. The elbow part is controlled to rotate in a universal direction relative to the straight pipe part through the universal controller.

10. The bone wax smearing gun for automatically filling and ejecting bone wax according to claim 1, characterized in that: The gun body is also provided with: An ejection mechanism, the ejection mechanism is arranged in the gun barrel, the ejection mechanism comprises an ejection member, 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, the driving mechanism is arranged in the gun body, and the driving mechanism is used to drive the ejection member to move backward to store energy; A launching mechanism, the launching mechanism is used to lock or release the energy storage state of the ejection member, and the energy storage state of the ejection mechanism is released when the trigger of the launching mechanism is pulled; An adjusting mechanism 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.

Images