CN219208683U - Bone wax applicator - Google Patents

Abstract

The application provides a bone wax applicator, belongs to the medical instrument field. The bone wax applicator comprises an applicator body provided with a bone wax bearing cavity, an application member and a pushing member. The applicator body is provided with a wax filling port communicated with the bone wax bearing cavity. The coating piece is arranged at the far end of the coating body, and a wax outlet communicated with the bone wax bearing cavity is arranged on the coating piece. The distal end of the pushing member is slidably disposed within the bone wax bearing cavity, and the proximal end is exposed outside the applicator body. The application provides a bone wax applicator is through filling the wax mouth and pack into the bone wax of applicator body and bear the weight of the intracavity, and it promotes the impeller and releases bone wax after entering the wound to smear the piece, can prevent that the apparatus from penetrating into behind the wound bone wax and drop, and this applicator has the directionality, and the operation is smeared to bone wax that can accurately reach the bleeding point.

Description

Bone wax applicator

Technical Field

The utility model relates to the technical field of wound suturing, in particular to a bone wax applicator.

Background

Minimally invasive therapy is a new therapeutic approach developed in the medical field in recent years, representing a new direction of medicine. Compared with the traditional operation, the minimally invasive treatment has the characteristics of small wound, thin scar, less bleeding in the operation, light pain for the postoperative patient, quick recovery and the like, and is more and more popular with doctors and patients.

The minimally invasive surgical instruments are designed into various products, and various products are mostly combined with endoscopes to meet the requirements of different surgical formulas, and when the minimally invasive surgical instruments are opened conventionally, such as in the case of coping with soft tissue and bone surface bleeding, doctors usually use periosteum detachers to smear bone wax on bleeding points. In the minimally invasive surgery, due to the limitation of the traditional surgical instruments, the conditions of poor hand holding feel, shielding of the visual field of the surgical wound and the like may exist in the minimally invasive surgery. And the position of smearing the bone wax is provided with a plurality of blood water needing to be washed, the water pressure is relatively high in the process of washing the blood water, the dipped bone wax on the periosteum stripper can be washed away, and the washed bone wax can not be left at other positions of a human body, so that medical staff needs to find the bone wax and then remove the bone wax, thereby increasing the operation time of the medical staff.

Disclosure of Invention

In view of the above-described deficiencies of the prior art, the present utility model solves the technical problem of providing a bone wax applicator that is easy to handle and safe and reliable.

To achieve the above and other related objects, the present utility model provides a bone wax applicator comprising an applicator body provided with a bone wax-carrying cavity, an applicator member and a pusher member;

the applicator body is provided with a wax filling port communicated with the bone wax bearing cavity;

the coating piece is arranged at the far end of the coating body, and a wax outlet communicated with the bone wax bearing cavity is arranged on the coating piece;

the distal end of the pushing piece is slidably arranged in the bone wax bearing cavity, and the proximal end of the pushing piece is exposed out of the applicator body and is used for pushing bone wax filled in the bone wax bearing cavity to the wax outlet.

In a possible embodiment, the bone wax applicator further comprises a fine tuning element arranged away from one end of the applicator element, one end of the fine tuning element penetrates through the applicator body and is connected with the pushing element, and displacement of the fine tuning element is used for driving the pushing element to move in the bone wax bearing cavity.

In a possible embodiment, the applicator body comprises a sleeve and a hollow handle in communication with the sleeve, the fine adjustment being provided in the hollow handle; the inner cavity of the sleeve forms the bone wax bearing cavity, and the distal end of the pushing piece penetrates through the hollow handle and then is slidably arranged in the bone wax bearing cavity.

In one possible embodiment, the pusher comprises a pusher bar and a pusher plate disposed at a proximal end of the pusher bar. The length of the pushing rod is set according to the requirement, and the bone wax placed in the bone wax bearing cavity can be pushed to be extruded from the wax outlet.

In one possible embodiment, the hollow handle is provided with a limit notch;

the fine adjustment piece comprises a control part and a connecting part, one end of the connecting part penetrates through the limiting notch and then is connected with the pushing piece, and the other end of the connecting part is connected with the control part;

the control part is arranged at the limit notch and at least partially exposed out of the limit notch, and is used for driving the connecting part to generate displacement so as to drive the pushing piece to move in the bone wax bearing cavity.

In one possible embodiment, the limit slot extends through at least one side wall face of the hollow handle and the limit slot extends in a front-to-rear direction of the applicator body.

In a feasible embodiment, the control part is a control push button, the connecting part is a push button supporting rod, and anti-slip protrusions or anti-slip patterns are arranged on the push button supporting rod, so that the use is convenient;

the push button supporting rod is arranged on the limiting notch in a sliding mode, and the control push button is completely exposed out of the limiting notch.

In a possible embodiment, the hollow handle is further provided with a guide groove matched with the shape of the control push button, and the opening end of the limit notch is positioned at the bottom wall of the guide groove; the control push button is at least partially positioned in the guide groove, and the guide groove is used for stably controlling the control push button so as to prevent the control push button from slightly shifting to influence the operation.

In a possible embodiment, the control part comprises a control push button and a limit moving piece which are connected with each other, and the connecting part is a push button supporting rod;

the inner wall of the limiting notch is provided with a one-way ratchet bar, and the limiting moving piece is adapted to be arranged in a tooth slot of the one-way ratchet bar.

In a possible embodiment, the connecting part is two push button support rods, and the two push button support rods are symmetrically arranged at the bottom side of the control push button; the pushing piece is provided with a rod piece groove for the push button support rod to be inserted.

In a possible embodiment, the limit moving member includes a moving portion and a connecting portion;

wherein the moving part is adapted to be arranged in a tooth socket of the unidirectional ratchet bar; the connecting part is used for being connected with the control push button and the pushing piece respectively. The unidirectional ratchet bar has the function that the fine tuning piece can only push to the wax outlet end, thereby preventing the blood from being filled after flowing.

In a possible embodiment, a connection gap is arranged between the two push button support rods;

the connecting part comprises a first connecting part and a second connecting part; the first connecting part is connected with the control push button and the pushing piece through connecting pieces; the second connecting portion is mounted in the connecting gap.

In a possible embodiment, the connecting part is a driving wheel and is connected with the pushing piece; the control part is a driving part and is used for driving the driving wheel to generate rotary displacement so as to drive the pushing part to move in the bone wax bearing cavity;

in a possible embodiment, a rod rack is provided on the pushing member, and the driving wheel is in meshed connection with the rod rack.

In one possible embodiment, the driving member comprises a driving link and a roller;

the head end of the driving connecting rod is connected with the roller, and the tail end of the driving connecting rod passes through the limit notch and is connected with the driving wheel;

the limiting notch is used for placing the idler wheel, and a gear transmission mode is adopted to enable the components to be linked stably and convenient to operate. Preferably, the outer edge of the roller is provided with interval protrusions, so that an operator can realize micro-control operation more easily.

In a possible embodiment, the hollow handle is further provided with a driving wheel mounting opening for mounting the driving wheel;

and/or the driving wheel is provided with a connecting through hole for connecting with the head end of the driving piece;

in a possible embodiment, the inner wall of the connecting through hole is provided with a key groove, and the head end of the driving connecting rod is provided with a key member with the shape matched with that of the key groove.

In a possible embodiment, the surface of the wax outlet arranged on the smearing piece is an arc-shaped surface, and the arc-shaped surface is used for being jointed with the physiological bone surface;

and/or, the distal end of the applicator is oblate elliptical;

and/or the external diameter of the smearing piece is 3-10 mm.

Advantageous effects

As described above, the bone wax applicator described herein has the following beneficial effects:

1) According to the applicator, bone wax is filled into the bone wax bearing cavity of the applicator body through the wax filling port, and the applicator drives the pushing member to push out the bone wax after entering a wound, so that the bone wax can be prevented from falling off after an instrument is detected into the wound;

2) The utility model provides an applicator uses the micromatic setting spare and forms the linkage relation with micromatic setting spare and catch bar through relation of connection, drives the catch bar through the tiny displacement of micromatic setting spare and promotes the bone wax that is located bone wax and bear the weight of intracavity to the play chamber speed of fine control bone wax accomplishes quick or slow application demand with the cooperation catch bar.

3) The applicator is small in size, suitable for minimally invasive surgery, and has targeting and simple operation in structural design, and an operator can realize single-hand operation and accurately reach a bleeding point to smear bone wax;

4) The surface of the wax outlet of the applicator is an arc-shaped surface, and is attached to the bone surface of a human body; the distal end of the applicator is a flattened ellipsoid, which can be used to hold instruments to destroy internal wounds.

Drawings

Fig. 1 is a schematic perspective view showing a bone wax applicator according to example 1 of the present application.

Fig. 2 is a schematic cross-sectional view showing a bone wax applicator according to example 1 of the present application.

Fig. 3 shows an exploded view of the bone wax applicator of example 1 of the present application.

Fig. 4 is a schematic structural view of an application member of the bone wax applicator according to embodiment 1 of the present application, wherein a is a schematic structural view of the application member, and b is a sectional view of the application member.

Fig. 5 is a schematic perspective view showing a bone wax applicator according to example 2 of the present application.

Fig. 6 is a schematic cross-sectional view showing a bone wax applicator according to example 2 of the present application.

Fig. 7 shows an exploded view of the trimming member of the bone wax applicator of embodiment 2 of the present application and a schematic view of the trimming member and push rod to be assembled.

Fig. 8 shows a schematic structural view of a hollow handle of a bone wax applicator according to example 2 of the present application.

Fig. 9 is a schematic view showing the assembly of the limit shifter and the hollow handle of the bone wax applicator according to embodiment 2 of the present application.

Fig. 10 shows a schematic view of the assembly of the stopper of the fine adjustment member of the bone wax applicator according to embodiment 2 of the present application with the unidirectional ratchet bar, with the arrow pointing in the unidirectional direction of movement.

Fig. 11 shows a schematic assembly of the fine tuning element and the pushing rod of the bone wax applicator according to example 2 of the present application.

Fig. 12 is a schematic perspective view showing a bone wax applicator according to example 3 of the present application.

Fig. 13 is an enlarged view of the portion B in fig. 12.

Fig. 14 shows an exploded view of the bone wax applicator of example 3 of the present application.

Fig. 15 is an enlarged view of the portion a in fig. 14.

Fig. 16 is a schematic view showing the structure of a driving wheel of the bone wax applicator according to embodiment 3 of the present application.

Fig. 17 is a schematic view showing the structure of a pushing rod of the bone wax applicator according to example 3 of the present application.

Fig. 18 is a schematic view showing the structure of a driving link of the bone wax applicator according to embodiment 3 of the present application.

Fig. 19 is a schematic view showing the structure of a roller of the bone wax applicator according to example 3 of the present application.

Description of the reference numerals

1. Applicator body

11. Casing pipe

111. Wax filling port

12. Hollow handle

121. Limiting notch

122. Guide groove

123. Unidirectional ratchet bar

124. Driving wheel mounting opening

2. Smearing piece

211. Wax outlet

3. Pusher member

31. Push rod

311. Bearing hole

312. Rod piece groove

313. Rod rack

32. Push plate

4. Fine tuning piece

411. Control push button

412. Limiting moving part

4121. Moving part

4122. First connecting part

4123. Second connecting part

413. Driving piece

4131. Driving connecting rod

4132. Roller wheel

4133. Key member

421. Push button support rod

4211. Connection gap

422. Driving wheel

4221. Key groove

423. Connecting piece

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

Please refer to the accompanying drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

The terms "proximal" and "proximal portion" refer to the end that is proximal to the operator when the bone wax applicator is in use, and also refer to the end that is distal to the patient; the terms "distal end", "distal portion" refer to the end that is distal to the operator, and also the end that is proximal to the patient, when the bone wax applicator is in use. The positional or positional relationship indicated by "head end", "tail end", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the positional or positional relationship shown in the drawings, and is merely for convenience of description and simplification of the description, and is not indicative or implying that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Referring to fig. 1-18, the bone wax applicator according to various embodiments of the present application includes an applicator body 1 having a bone wax-carrying cavity, an applicator member 2, and a pusher member 3. Wherein the applicator body 1 is provided with a wax filling port 111 communicating with the bone wax carrying cavity. The coating piece 2 is arranged at the far end of the coating body 1, and a wax outlet 211 communicated with the bone wax bearing cavity is arranged on the coating piece 2; the distal end of the pushing member 3 is slidably arranged in the bone wax bearing cavity, and the proximal end is exposed out of the applicator body 1 and is used for pushing bone wax filled in the bone wax bearing cavity to the wax outlet. The distance between the wax filling opening 111 and the wax outlet 211 is set according to the maximum wax coating amount, and the sizes of the wax filling opening 111 and the wax outlet 211 are set according to the actual use requirement. The attachment means of the applicator portions may be selected from fixed or removable connections including, but not limited to, integral molding, welding, plugging or screwing.

The bone wax is filled into the bone wax-bearing cavity through the filler port 111 prior to use of the bone wax applicator, preferably without exposing the solid wax at the filler port 111 (i.e., the solid wax filling the bone wax-bearing cavity is not visible at the filler port) to prevent minor spillage of the solid wax from the filler port 1111 upon pushing the pusher member. The bone wax is hidden in the bone wax applicator, so that the bone wax can be prevented from falling off and moving after the bone wax applicator is inserted into a wound. In use of the bone wax applicator, the pusher member 3 is pushed to move within the bone wax-bearing cavity and push bone wax disposed within the bone wax-bearing cavity out of the wax outlet 211, thereby allowing the bone wax to be applied to the wound. In summary, the bone wax is hidden in the bone wax applicator before being applied to the wound, so that the bone wax is not washed away in the blood washing process.

In a preferred embodiment, the applicator body 1 comprises a sleeve 11 and a hollow handle 12 in communication with the sleeve 11, the trimming member 4 being provided in the hollow handle 12. The inner cavity of the sleeve 11 forms a bone wax bearing cavity, and the distal end of the pushing piece 3 penetrates through the hollow handle 12 and can be slidably arranged in the bone wax bearing cavity. The hollow handle 12 is convenient for an operator to hold, the fine tuning piece 4 is arranged on the hollow handle 12 to facilitate the operator to operate with one hand, and the sleeve 11 is used for entering the wound of the machine body.

In a preferred embodiment, when the output speed of the bone wax needs to be controlled, a fine adjustment member 4 for fine adjustment of the pushing speed of the pushing member is arranged on the bone wax applicator, and the fine adjustment member 4 is arranged at one end far away from the applying member (i.e. near the proximal end of the bone wax applicator), so that the bone wax applicator is convenient for operators to use. Specifically, one end of the fine tuning element 4 passes through the applicator body 1 and is connected with the pushing element 3, and the displacement of the fine tuning element 4 is used for driving the pushing element 3 to move in the bone wax bearing cavity.

More specifically, the hollow handle 12 is provided with a limit notch 121. The fine adjustment member 4 includes a control portion and a connection portion, one end of the connection portion passes through the limit notch 121 and then is connected with the pushing member 3, and the other end is connected with the control portion. The control part is arranged at the limit notch 121 and at least partially exposed out of the limit notch 121, and is used for driving the connecting part to displace so as to drive the pushing piece 3 to move in the bone wax bearing cavity. The bone wax can be rapidly output by pushing the pushing piece 3, and the bone wax can be slowly conveyed by finely adjusting the movement of the pushing piece 3 by the fine adjusting piece 4.

Principle of action of the trimming member: the fine tuning piece is directly connected with the pushing piece to form linkage, and the fine movement of the pushing piece can be realized by controlling the fine movement of the fine tuning piece. For example, the fine adjustment member can realize bidirectional or unidirectional micro-movement along the extending direction of the bone wax bearing cavity so as to drive the pushing member to move bidirectionally or unidirectionally; for another example, the fine tuning piece, the auxiliary piece and the pushing piece realize gear linkage, and the rotation displacement of the fine tuning piece is converted into the translation of the pushing piece so as to realize the unidirectional or bidirectional movement of the pushing piece along the extending direction of the bone wax bearing cavity.

In a preferred embodiment, as shown in fig. 4, the surface of the applicator member 2 on which the wax outlet 211 is provided is an arcuate surface configured to conform to the physiological bone surface. The wax outlet 211 is also arc-shaped, can better fit the bone surface, accords with human anatomy, and can achieve the purpose of targeted coating.

In a preferred embodiment, the distal end of applicator member 2 is oblong, preventing the wound from being injured by the instrument.

In a preferred embodiment, the external diameter of the smearing member 2 is 3-10 mm, preferably 5mm, and the rest parts are arranged according to actual requirements, preferably the external diameters of the parts entering the body are 3-10 mm, so as to adapt to minimally invasive surgery.

In a preferred embodiment, the pusher 3 comprises a pusher bar 31 and a pusher plate 32 provided at the proximal end of the pusher bar 31, wherein the pusher plate is preferably flat with anti-skid patterns for the user's convenience of use as a design objective.

In a preferred embodiment, in terms of machining, the hollow handle 12 is of aluminum or stainless steel material, with the remainder of the components being of stainless steel material. In terms of manufacturing, the smearing member 2, the sleeve 11 and the hollow handle 12 are integrally formed, and then the fine adjustment member 4 is assembled. Or respectively preparing the smearing piece 2, the sleeve 11 and the hollow handle 12, then detachably connecting or welding the smearing piece 2, the sleeve 11 and the hollow handle 12, and finally assembling the fine tuning piece 4 and other post-treatment procedures to finish the whole product processing.

Several possible embodiments are provided below, which are merely illustrative of the principles of the present utility model and its efficacy, and are not intended to limit the application.

Example 1

Referring to fig. 1 to 4, the bone wax applicator of the present embodiment includes an applicator body 1, an applicator member 2, and a pusher member 3. Wherein, the applicator body 1 comprises a hollow handle 12 and a sleeve 11, wherein the hollow handle is communicated with the sleeve 11, the cavity of the sleeve 11 is called as a bone wax bearing cavity, a wax filling opening 111 is arranged at the far end (one end close to the applicator 2) of the sleeve 11, and bone wax is filled into the bone wax bearing cavity through the wax filling opening 111. The pushing member 3 comprises a pushing rod 31 slidably arranged in the hollow handle 12 and the sleeve 11, and a pushing disc 32 arranged at the proximal end of the pushing rod 31, wherein the pushing disc is disc-shaped and provided with anti-slip patterns.

The whole of the smearing piece 2 is of an arc-shaped structure, the proximal end of the smearing piece is arranged at the distal end of the sleeve 11, the smearing piece 2 is provided with the wax outlet 211, one surface where the wax outlet 211 is arranged is an arc surface, and the smearing piece can be more attached to the bone surface and accords with human anatomy. The wax outlet 211 communicates with the sleeve 11 to form a bone wax pushing path, and bone wax is moved from the bone wax carrying cavity to the applicator 2 and is extruded from the wax outlet 211 under the pushing of the pushing rod 31. In addition, as shown in fig. 4, the distal end of the applicator 2 is a flattened ellipsoid, preventing the instrument from damaging internal tissue. It should be noted that, the start position of the pushing rod 31 is at the distal end of the wax filling opening 111, and when the bone wax is filled into the bearing cavity, the pushing disc 32 is pushed to push the distal end of the pushing rod 31 forward and push the bone wax out of the wax outlet 211.

In addition, the outer diameter of both the applicator 2 and the cannula 11 is about 5mm. The hollow sleeve 12 is not inserted into the body during use and is sized to facilitate gripping and use. The positions and the sizes of the wax outlet 211 and the wax filling port 111 are set according to the use requirements. Before the bone wax is coated on the wound, the bone wax is placed in the bone wax bearing cavity of the bone wax applicator, so that the bone wax cannot be washed away in the process of washing blood.

As a preferred embodiment, a fine tuning element 4 is further provided on the basis of the bone wax applicator provided in the present embodiment, the fine tuning element 4 being provided on the hollow handle 12 in a position which is convenient for one-hand operation. Specifically, the fine tuning element 4 includes a control push button 411 as a control portion and a push button support bar 421 as a connection portion, and the control push button 411 and the push button support bar 421 may be integrally welded or detachably connected. The specific fine tuning element 4 and the bone wax applicator are configured as shown in fig. 2 and 3: a through hole is formed in the hollow sleeve 12 as a limit notch 121, the limit notch 121 penetrates from one side of the hollow sleeve 12 into the cavity of the hollow sleeve 12, and the opening direction of the limit notch 121 extends along the front-rear direction of the hollow sleeve 12. The push button support rod 421 passes through the limit notch 121 and then is fixedly connected with the bearing hole 311 arranged on the push rod 31, the outer diameter of the push button support rod 421 is slightly smaller than the groove width of the limit notch, the push button 411 is controlled to be completely exposed outside the limit notch 121, the push button support rod 421 is driven to move in the extending direction of the limit notch 121 by pushing the control push button 411, so that the push rod 31 connected with the push button support rod 421 is driven to move, the moving distance is the length of the limit notch 121, and the length is satisfied that the push rod 31 pushes bone wax from the bone wax bearing cavity to the wax outlet 211 and then extrudes the bone wax. The control push button 411 is oblong and provided with anti-slip patterns to facilitate pushing by an operator's finger.

Preferably, as shown in fig. 1 and 3, the hollow handle 12 is further provided with a guiding slot 122 with a shape adapted to that of the control push button 411, the opening end of the limit slot 121 is located at the bottom wall of the guiding slot 122, the control push button 411 is at least partially located in the guiding slot 122, the guiding slot 122 plays a role in guiding and limiting the control push button 411, and a user can conveniently push smoothly.

The preferred embodiments provide for fine tuning of the bone wax applicator during bone wax pushing. When the bone wax is required to be quickly conveyed or conveyed in a large quantity, an operator holds the hollow handle 12 by one hand and pushes the pushing disc positioned at the proximal end of the pushing rod 31 by the other hand to quickly push the bone wax; when the bone wax is required to be slowly delivered, the operator can hold the hollow handle 12 by one hand and fine tune the control push button 411 by the same hand, so as to achieve the purpose of slowly pushing the bone wax out of the wax outlet 211.

Example 2

Embodiment 2 differs from embodiment 1 in the specific implementation of the trim element 4. The fine tuning element 4 of the present embodiment includes a control push button 411 and a limit moving element 412 as a control part, and a push button support bar 421 as a connecting part, which are integrally connected and connected with the push rod 31 during use. The structural arrangement mode of the fine adjustment member 4 and the bone wax applicator is shown in fig. 6 to 11, the limit notch 121 penetrates through one side of the hollow sleeve 12 into the cavity of the hollow sleeve 12, the opening direction of the limit notch 121 extends along the front-back direction of the hollow sleeve 12, the one-way ratchet bar 123 is arranged on the inner wall of the limit notch 121, and the limit moving member 412 is adapted to the tooth groove of the one-way ratchet bar 123. As shown in fig. 8 and 9, the spline groove of the unidirectional ratchet bar 123 faces the distal end of the hollow handle 12, and the limit movement member 412 is adapted to be provided on the unidirectional ratchet bar 123 so as to be movable only in one direction (forward movement toward the patient) and not to be retractable.

Specifically, as shown in fig. 7, for convenient disassembly and assembly to achieve the sterilization of the parts before and after the operation and convenient functional use, the control push button 411 and the two push button support rods 421 disposed on the lower side of the control push button 411 are integrally formed, and the limiting moving part 412 is detachably connected with the above parts, more specifically:

1) The two push button support rods 421 are symmetrically arranged at the bottom side of the control push button 411, the push rod 31 is provided with rod piece grooves 312 for inserting the push button support rods 421, wherein the push rod 31 is symmetrically provided with two L-shaped rod piece grooves 312, the free ends of the two push button support rods 421 are L-shaped matched with the rod piece grooves 312, the push button support rods 421 are inserted into the rod piece grooves 312, the inserting direction is the pushing direction of the control push button 411, and the push button support rods 421 are abutted against the groove walls of the rod piece grooves 312, so that when the control push button 411 is pushed, the push button support rods 421 apply force to the groove walls of the rod piece grooves 312 and drive the push rod 31 to move forward along the direction of the wax outlet 211.

2) The limiting moving member 412 is detachably connected with the control push button 411 and the push button support rod 421, which are integrally formed, the limiting moving member 412 includes a moving portion 4121 and a connecting portion, wherein the moving portion 4121 is adapted to be disposed in a tooth slot of the unidirectional ratchet bar 123, and the connecting portion is used for being connected with the control push button 411 and the push member 3 respectively. As shown in fig. 7, the connection portion includes a first connection portion 4122 and a second connection portion 4123, and the first connection portion 4122 is connected to the control push button 411 and the push rod 31 through a connection member 423.

More specifically, the first connection portion 4122 is connected to the control push button 411 and the push rod 31 via the connection member 423 in the following manner: the control push button 411 and the first connecting portion 4122 are respectively provided with a through hole, the push rod 31 is provided with a threaded hole, and the screw connecting piece 423 with threads at the bottom sequentially passes through the through holes of the control push button 411 and the first connecting portion 4122 and then is screwed on the push rod 31. Namely, the locking screw connection piece 423 is adopted to realize the fastening connection of the control push button 411, the limit moving piece 412 and the push rod 31. This structure facilitates the removal of the parts from the push rod 31. The screw can be a straight screw, and the screw can be locked or disassembled by a straight screwdriver, so that the bone wax applicator can be conveniently disinfected and cleaned before and after an operation, and other conventional screws can be adopted.

In addition, a connection gap 4211 is formed between the two push button support rods 421, and when the limiting moving member 412 is assembled, the second connection portion 4123 is inserted into the connection gap 4211 to perform positioning and installation functions, and the second connection portion 4123 contacts the two push button support rods 421 to perform a stable function, so as to prevent the swinging of the parts during the moving process.

3) As shown in fig. 7, the limiting moving member 412 is claw-like, and is provided with two moving portions 4121 symmetrically disposed at two sides of the second connecting portion 4123 (strip-shaped protruding block), wherein the moving portions 4121 are arc-shaped elastic pieces, and are sequentially far away from the second connecting portion 4123 from the connecting portion with the first connecting portion 4122 to the free end thereof. As shown in fig. 8 and 9, two unidirectional ratchets 123 are provided on the inner wall of the limiting slot 121, the free end sides of the two moving parts 4121 are adapted to be clamped in the tooth grooves of the unidirectional ratchets 123, and the moving parts 4121 are matched with the unidirectional ratchets 123, so that the unidirectional ratchets 123 block the moving parts 4121 from moving towards the proximal end of the pushing rod 31, and the pushing control push button 411 can push the moving parts 4121 to move on the unidirectional ratchets 123 unidirectionally so as to drive the pushing rod 31 to move unidirectionally and advance and not retract, thus preventing the liquid such as blood from being sucked back into the applicator in the operation process.

4) As shown in fig. 6, the embodiment is different from embodiment 1 in that the specific arrangement mode of the push button 411 is controlled, and the fine adjustment member 4 of the embodiment can only control the push rod 31 to move toward the wax outlet 211, so that the push button 411 is controlled to have a slope and anti-skid patterns. Part of the control push button 411 (the lower part of the slope) is arranged in the limit notch 121, and the limit notch 121 plays a role in limiting; part of the control push button 411 (at the height of the slope) is exposed out of the limit notch 121, so that the operation by one hand of an operator is facilitated.

Example 3

The main difference between embodiment 3 and embodiments 1 and 2 is that the specific implementation of the fine adjustment member 4 is different, and the moving speed and distance of the fine adjustment pushing rod 31 are realized by the cooperation of gears in this embodiment. As shown in fig. 12 to 19, the fine adjustment member 4 of the present embodiment includes a driving wheel 422 as a connecting portion, and a driving member 413 as a control portion for driving the driving wheel 422 to generate rotational displacement. In addition, the pushing member 3 is provided with a rod rack 313, and the driving wheel 422 is engaged with the rod rack 313, and the driving wheel 422 is driven to rotate by a driving member 413 arranged outside the applicator body, so as to drive the pushing rod 31 to move. Specific:

1) As shown in fig. 12 and 14, the driving member 413 includes a driving link 4131 and a roller 4132, the head end of the driving link 4131 is connected with the roller 4132, the tail end passes through the limit slot 121 and is connected with the driving wheel 422, the roller 4132 is disposed in the limit slot 121, a part of gear teeth of the roller 4132 are exposed out of the limit slot 121, the roller 4132 is shifted, and the roller 4132 drives the driving wheel 422 to rotate through the driving link 4131 so as to push the pushing rod 31 to move.

2) As shown in fig. 15 to 18, the driving wheel 422 and the roller 4132 are provided with through connecting holes, and both ends of the driving link 4131 are respectively connected with the driving wheel 422 and the roller 4132 through the connecting holes, and the driving wheel 422 is engaged with the bar body rack 313 on the push bar. Specifically, the two ends of the driving link 4131 may be fixedly connected to the driving wheel 422 and the roller 4132 by connecting through holes, such as interference fit, key slot fit, or screw fit. More specifically, as shown in fig. 16 and 18, the inner wall of the connecting through hole of the driving wheel 422 is provided with a key groove 4221, the head end of the driving link 4131 is provided with a key member 4133 which is matched with the shape of the key groove 4221, and the connection mode of the key member 4133 and the key groove 4221 is more stable. The meshing connection mode of the gear and the rack forms a controllable one-way or two-way movement mode, and liquid such as blood and the like can be prevented from being sucked into the applicator in the operation process.

3) As shown in fig. 12 and 14, a driving wheel mounting opening 124 is also provided on the hollow handle 12 for mounting the driving wheel 422 for easy installation.

The bone wax applicator of the embodiment can be applied to minimally invasive surgery, has good holding hand feeling, does not block the visual field of a surgical wound, and is convenient for accurately smearing bone wax on bleeding points under water.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (17)

1. The bone wax applicator is characterized by comprising an applicator body (1) provided with a bone wax bearing cavity, an application piece (2) and a pushing piece (3);

the applicator body (1) is provided with a wax filling port (111) communicated with the bone wax bearing cavity;

the smearing piece (2) is arranged at the far end of the smearing device body (1), and a wax outlet (211) communicated with the bone wax bearing cavity is arranged on the smearing piece (2);

the distal end of the pushing piece (3) is slidably arranged in the bone wax bearing cavity, and the proximal end is exposed out of the applicator body (1).

2. Bone wax applicator according to claim 1, further comprising a trimming member (4) arranged away from one end of the applicator member, one end of the trimming member (4) passing through the applicator body (1) and being connected to the pushing member (3), the displacement of the trimming member (4) being used to drive the pushing member (3) to move within the bone wax carrying cavity.

3. Bone wax applicator according to claim 2, characterized in that the applicator body (1) comprises a sleeve (11) and a hollow handle (12) communicating with the sleeve (11), the fine tuning element (4) being provided in the hollow handle (12); the inner cavity of the sleeve (11) forms the bone wax bearing cavity, and the distal end of the pushing piece (3) penetrates through the hollow handle (12) and then can be slidably arranged in the bone wax bearing cavity.

4. A bone wax applicator as in claim 3, wherein the hollow handle (12) is provided with a limit notch (121);

the fine adjustment piece (4) comprises a control part and a connecting part, one end of the connecting part penetrates through the limiting notch (121) and then is connected with the pushing piece (3), and the other end of the connecting part is connected with the control part;

the control part is arranged at the limit notch and at least partially exposed out of the limit notch (121), and is used for driving the connecting part to generate displacement so as to drive the pushing piece (3) to move in the bone wax bearing cavity.

5. Bone wax applicator according to claim 4, characterized in that the limit slot (121) extends at least through one side wall surface of the hollow handle (12) and the limit slot (121) extends in the front-rear direction of the applicator body (1).

6. The bone wax applicator of claim 5, wherein the control portion is a control push button (411) and the connection portion is a push button support bar (421);

the push button support rod (421) is arranged on the limit notch (121) in a sliding manner, and one end of the push button support rod (421) is connected with the bearing hole (311) on the pushing piece (3); the control push button (411) is completely exposed out of the limit notch (121).

7. The bone wax applicator as in claim 6, wherein the hollow handle (12) is further provided with a guide slot (122) adapted to the shape of the control knob (411), the open end of the limit slot (121) being located at the bottom wall of the guide slot (122); the control push button (411) is at least partially located in the guide groove (122).

8. The bone wax applicator of claim 4, wherein the control portion comprises a control push button (411) and a limit displacement member (412) that are interconnected, the connection portion being a push button support bar (421);

the inner wall of the limiting notch (121) is provided with a one-way ratchet bar (123), and the limiting moving piece (412) is adapted to be arranged in a tooth slot of the one-way ratchet bar (123).

9. The bone wax applicator of claim 8, wherein the connection is two push button support bars (421), the two push button support bars (421) being symmetrically disposed on the bottom side of the control push button (411); the pushing piece (3) is provided with a rod piece groove (312) for inserting the push button supporting rod (421).

10. The bone wax applicator of claim 9, wherein the limit displacement member (412) comprises a displacement portion (4121) and a connecting portion;

wherein the moving part (4121) is adapted to be arranged in a tooth slot of the unidirectional ratchet bar (123); the connecting part is used for being connected with the control push button (411) and the pushing piece (3) respectively.

11. The bone wax applicator of claim 10, wherein a connection gap (4211) is provided between the two push button support bars (421);

the connection portion includes a first connection portion (4122) and a second connection portion (4123); the first connecting part (4122) is connected with the control push button (411) and the pushing piece (3) through a connecting piece (423); the second connection portion (4123) is mounted to the connection gap (4211).

12. Bone wax applicator according to claim 4, characterized in that the connection is a driving wheel (422) connected to the pusher (3); the control part is a driving part (413) and is used for driving the driving wheel (422) to generate rotary displacement and driving the pushing part (3) to move in the bone wax bearing cavity.

13. Bone wax applicator according to claim 12, characterized in that the pushing element (3) is provided with a rod rack (313), the driving wheel (422) being in engagement with the rod rack (313).

14. The bone wax applicator of claim 13, wherein the drive member (413) comprises a drive link (4131) and a roller (4132);

the head end of the driving connecting rod (4131) is connected with the roller (4132), and the tail end of the driving connecting rod passes through the limit notch (121) and is connected with the driving wheel (422);

the limit notch (121) is used for placing the roller (4132).

15. The bone wax applicator of claim 14, wherein the hollow handle (12) is further provided with a drive wheel mounting opening (124) for mounting the drive wheel (422);

and/or the driving wheel (422) is provided with a connecting through hole for connecting with the head end of the driving connecting rod (4131).

16. The bone wax applicator of claim 15, wherein the connecting through bore inner wall is provided with a keyway (4221), the head end of the drive link (4131) being provided with a key member (4133) shape-adapted to the keyway (4221).

17. Bone wax applicator according to any of claims 1-16, characterized in that the surface of the applicator member (2) on which the wax outlet (211) is provided is an arcuate surface, said arcuate surface being provided for conforming to a physiological bone surface;

and/or the distal end of the smearing piece (2) is flat elliptic;

and/or the external diameter of the smearing piece (2) is 3-10 mm;

and/or the pushing piece (3) comprises a pushing rod (31) and a pushing disc (32) arranged at the proximal end of the pushing rod (31).

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