CN218870472U - Navigation device of surgical tool and acetabular cup impactor assembly - Google Patents
Navigation device of surgical tool and acetabular cup impactor assembly Download PDFInfo
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- CN218870472U CN218870472U CN202223524959.4U CN202223524959U CN218870472U CN 218870472 U CN218870472 U CN 218870472U CN 202223524959 U CN202223524959 U CN 202223524959U CN 218870472 U CN218870472 U CN 218870472U
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- surgical tool
- navigation device
- acetabular cup
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Abstract
The application relates to a navigation device of a surgical tool and an acetabular cup impactor assembly. A navigation device for a surgical tool, comprising: a first sleeve having a first through hole; the locking structure is fixedly arranged at the end part of the first sleeve and is provided with a second through hole, the axis of the second through hole is collinear with the axis of the first through hole, a surgical tool penetrates through the first through hole and the second through hole, and the locking structure can lock the surgical tool in the second through hole; the tracer is arranged on the first sleeve. The navigation device of the surgical tool is used for navigating the surgical tool in an operation, and accuracy and safety of the operation are improved.
Description
Technical Field
The application relates to the field of medical equipment, in particular to a navigation device of a surgical tool and an acetabular cup driver assembly.
Background
During the hip replacement operation, the acetabular cup needs to be mounted on an acetabular cup driver, and the acetabular cup is embedded into the acetabulum to be replaced by knocking the acetabular cup driver. The placing angle of the acetabular cup completely depends on some bony marks of a patient and clinical experience of a doctor, and the placing angle of the acetabular cup cannot be accurately mastered in the operation process, so that the operation effect is influenced.
SUMMERY OF THE UTILITY MODEL
Based on the above problem, the present application provides a navigation device and an acetabular cup impactor subassembly of surgical tool, be convenient for navigate surgical tool in the operation process.
One embodiment of the present application provides a navigation device of a surgical tool, including: a first sleeve having a first through hole; the locking structure is fixedly arranged at the end part of the first sleeve and is provided with a second through hole, the axis of the second through hole is collinear with the axis of the first through hole, a surgical tool penetrates through the first through hole and the second through hole, and the locking structure can lock the surgical tool in the second through hole; the tracer is arranged on the first sleeve.
According to some embodiments of the application, the locking structure comprises: the second sleeve is arranged at the end part of the first sleeve, and a limit hole communicated with the second through hole is arranged on the side wall of the second sleeve; the limiting block is arranged in the limiting hole in a sliding manner; the rotary sleeve is provided with an accommodating hole, an accommodating groove is formed in the wall of the accommodating hole, a guide groove communicated with the accommodating hole is formed in the side wall of the rotary sleeve, part of the second sleeve and the limiting block are located in the accommodating hole, the limiting block can partially enter the accommodating groove when the accommodating groove corresponds to the limiting block, and the limiting block can partially enter the second through hole by rotating the rotary sleeve; the third sleeve is provided with a third through hole, the rotating sleeve penetrates through the third through hole, and the third sleeve is connected with the second sleeve; and the guide pin is arranged on the side wall of the third sleeve and penetrates into the guide groove of the rotating sleeve.
According to some embodiments of the present application, the surface of the stopper that can contact the rotating sleeve is a convex curved surface.
According to some embodiments of the present application, the side wall of the receiving groove is an inclined surface.
According to some embodiments of the application, the second through hole is a stepped hole, and the end portion of the first sleeve penetrates into a large-diameter portion of the second through hole.
According to some embodiments of the present application, the second sleeve is provided with a damping groove on an end surface of the accommodating hole; the containing hole of the rotary sleeve is a stepped hole, the second sleeve is positioned on the large-diameter part of the containing hole, and a damping structure is arranged on a shoulder of the containing hole and matched with the damping groove so as to limit the rotation of the rotary sleeve.
According to some embodiments of the application, both ends of the first through hole of the first sleeve are provided with bushings.
According to some embodiments of the application, the outer wall of the first sleeve is provided with anti-slip threads.
One embodiment of the present application provides an acetabular cup impactor assembly comprising: a navigation device for a surgical tool as described above; acetabular cup driver, including the body of rod and beater, the body of rod passes first through-hole and second through-hole, and the body of rod and beater detachable connect.
According to some embodiments of the application, the beater has an insertion hole, the side wall of the beater is provided with a button hole communicated with the insertion hole, the end of the rod body inserted into the insertion hole is provided with a clamping groove, and the acetabular cup driver further comprises: the button is slidably arranged in the button hole, a fourth through hole is formed in the button, and the rod body penetrates into the fourth through hole; the elastic piece is arranged in the button hole and can push the button to be clamped into the clamping groove of the rod body.
The application of the navigation device of the surgical tool can lock the surgical tool, the surgical tool is navigated in the operation, the accuracy and the safety of the operation are improved, and the service life of the surgical tool is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings required for the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without exceeding the protection scope of the present application.
FIG. 1 is a schematic view of a navigation device of a surgical tool in accordance with an embodiment of the present application;
FIG. 2 is a cross-sectional view of a navigation device of a surgical tool of an embodiment of the present application;
FIG. 3 is a schematic view of a first sleeve according to an embodiment of the present application;
FIG. 4 is an exploded view of the locking structure of the embodiment of the present application;
FIG. 5 is a schematic view of a second sleeve according to an embodiment of the present application;
FIG. 6 is a schematic view of a rotating sleeve according to an embodiment of the present application;
FIG. 7 is a schematic view of a third sleeve according to an embodiment of the present application;
FIG. 8 is a schematic view of a flange and locking slot on a surgical tool according to an embodiment of the present application;
FIG. 9 is a schematic view of a stop according to an embodiment of the present application;
FIG. 10 is a cross-sectional view of a second sleeve of an embodiment of the present application;
FIG. 11 is a schematic view of a damping structure according to an embodiment of the present application;
FIG. 12 is a schematic view of an acetabular cup impactor assembly according to an embodiment of the application;
FIG. 13 is a cross-sectional view of a connecting structure of a stick body and a striker according to an embodiment of the present invention;
FIG. 14 is an exploded view of the connection structure of the stick body and the striker according to the embodiment of the present application.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, not all, of the embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1, the embodiment of the present application provides a navigation device 100 (abbreviated as navigation device) for surgical tools, and the navigation device 100 includes a first sleeve 1, a locking structure 2 and a tracer 3. The navigation device 100 is used to navigate the surgical tool 200 intra-operatively.
As shown in fig. 2 and 3, the first sleeve 1 is cylindrical as a whole, and a first through hole 11 is provided in the first sleeve 1, and the first through hole 11 extends along the axis of the first sleeve 1.
The locking structure 2 is fixedly arranged at the end of the first sleeve 1, for example, the locking structure 2 is connected with the end of the first sleeve 1 by welding. The locking structure 2 has a second through hole 211, the axis of the second through hole 211 being collinear with the axis of the first through hole 11. The surgical tool 200 penetrates the first through-hole 11 and the second through-hole 211. Taking the surgical tool 200 as an acetabular cup impactor for example, the body of the acetabular cup impactor is inserted into the first through hole 11 and the second through hole 211. The locking structure 2 can lock the surgical tool 200 in the second through hole 211, so as to ensure that the surgical tool 200 does not move relative to the navigation device 100.
The tracer 3 is arranged on the first sleeve 1 by means of a support 31. The tracer 3 can select to use the existing tracer, including reflection of light ball support and a plurality of reflection of light balls (not shown in the figure), a plurality of reflection of light balls are asymmetric and the setting of collineation on reflection of light ball support not. The navigation system of the surgical robot is able to identify the reflective ball of the tracer 3.
In use, the surgical tool 200 is inserted into the first through hole 11 of the first sleeve 1 and the second through hole 211 of the locking structure 2, and the locking structure 2 locks the surgical tool 200. For example, the surgical tool 200 is an acetabular cup driver, which includes a rod body and a striker, the rod body is inserted through the first through hole 11 and the second through hole 211, the locking structure 2 locks the rod body, the striker is mounted to one end of the rod body, and the acetabular cup is mounted to the other end of the rod body. Tracer 3 can be discerned through surgical robot's navigation to carry out accurate discernment to the position of acetabular cup impactor, the angle is placed to the acetabular cup of being convenient for operating personnel real-time master, improves the precision of operation.
As shown in fig. 2 and 4, in some embodiments, the locking structure 2 comprises: a second sleeve 21, a stopper 22, a rotary sleeve 23, a third sleeve 24 and a guide pin 25.
As shown in fig. 5, the second sleeve 21 has a stepped shaft shape as a whole, and includes a large diameter portion 21a and a small diameter portion 21b connected to each other. The second through hole 211 is provided in the second sleeve 21, and the second through hole 211 extends along an axis of the second sleeve 21. The large diameter portion 21a of the second sleeve 21 is connected to the end of the first sleeve 1. The side wall of the small diameter portion 21b is provided with a stopper hole 212, the stopper hole 212 communicates with the second through hole 211, and the stopper hole 212 is located at an end portion of the small diameter portion 21b close to the large diameter portion 21 a. The number of the limiting holes 212 is plural, and optionally, the plural limiting holes 212 are uniformly distributed around the circumference of the axis of the second sleeve 21. In this embodiment, the number of the limiting holes 212 is three.
The limiting blocks 22 are slidably disposed in the limiting holes 212, the limiting blocks 22 can partially enter the second through holes 211, and the plurality of limiting blocks 22 can cooperate to clamp the surgical tool 200 in the second through holes 211.
As shown in fig. 6, the rotary sleeve 23 has a receiving hole 231, and optionally, the receiving hole 231 is a through hole extending along the axis of the rotary sleeve 23. The small-diameter portion 21b of the second sleeve 21 and the stopper 22 are located in the accommodation hole 231. The end of the rotating sleeve 23 abuts against a shoulder of the second sleeve 21. The hole wall of the accommodating hole 231 close to the shoulder of the second sleeve 21 is provided with accommodating grooves 232, and the number of the accommodating grooves 232 is the same as that of the limiting blocks 22. When the rotating sleeve 23 rotates until the limiting block 22 corresponds to the accommodating groove 232, the limiting block 22 can slide up and down to partially enter the accommodating groove 232. When the rotating sleeve 23 rotates until the wall of the accommodating hole 231 contacts the stopper 22, the stopper 22 can partially enter the second through hole 211 to lock the surgical tool 200 in the second through hole 211. The side wall of the rotary sleeve 23 is provided with a guide groove 233 communicating with the accommodation hole 231, and the guide groove 233 extends in the circumferential direction of the second sleeve 21.
As shown in fig. 7, the third sleeve 24 has a third through hole 241, and the third through hole 241 extends along the axis of the third sleeve 24. The end of the third sleeve 24 is connected to the second sleeve 21. For example, in fig. 5, the large diameter portion 21a of the second sleeve 21 is provided with an annular platform 215 adapted to the third sleeve 24, the end of the third sleeve 24 is sleeved on the annular platform 215, and the third sleeve 24 and the second sleeve 21 are connected by welding. The rotary sleeve 23 penetrates into the third through hole 241. The third through hole 241 is matched with the rotary sleeve 23, so that the rotary sleeve 23 is prevented from shaking during rotation.
The guide pin 25 is provided on the side wall of the third sleeve 24, and the guide pin 25 is inserted into the guide groove 233 of the rotary sleeve 23 to guide the rotation of the rotary sleeve 23 while restricting the axial movement of the rotary sleeve 23. For example, as shown in fig. 5 and 7, a pin hole 242 is provided in the side wall of the third sleeve 24, a pin hole 213 is provided in the side wall of the small diameter portion 21b of the second sleeve 21, one end of the guide pin 25 is positioned in the pin hole 242 of the third sleeve 24, and the other end of the guide pin 25 passes through the guide groove 233 and enters the pin hole 213 of the second sleeve 21.
During the use, rotate swivel sleeve 23 to stopper 22 and storage tank 232 corresponding, penetrate first through-hole 11 with surgical tool 200, surgical tool 200 can promote stopper 22 to slide to the direction of moving out second through-hole 211 after second through-hole 211 contacts with stopper 22. After the surgical tool 200 is moved in place, the rotating sleeve 32 is rotated, the limiting block 22 moves out of the accommodating groove 232 along with the rotation of the rotating sleeve 32, the limiting block 22 slides in the direction of entering the second through hole 211, and when the limiting block 22 contacts with the hole wall of the accommodating hole 231, the limiting block 22 compresses the surgical tool 200. When the surgical tool 200 needs to be unlocked, the rotating sleeve 32 is rotated reversely until the limiting block 22 corresponds to the accommodating groove 232. Alternatively, on the end face of the rotary sleeve 23 remote from the second sleeve 21, the "on" and "off" designation arrows are provided.
As shown in fig. 8, a flange 210 and a locking groove 220 are provided on the outer wall of the surgical tool 200. The locking groove 220 is matched with the limiting block 22. After partial penetration of the surgical tool 200 into the navigation device 100, the flange 210 can abut an end of the navigation device 100 to position the connection of the surgical tool 200 to the navigation device 100. When the flange 210 abuts the navigation device 100, the stop block 22 can be snapped into the locking slot 220 to better lock the surgical tool 200.
As shown in fig. 9, in some embodiments, the top surface of the limiting block 22 can contact with the rotating sleeve 23, and the top surface of the limiting block 22 is a convex curved surface, so that the limiting block 22 can move into or out of the accommodating groove 232 conveniently. Optionally, the bottom surface of the stopper 22 is a concave curved surface, which facilitates the stopper 22 to clamp the cylindrical surgical tool 200. A gap is formed between the hole wall of the accommodating hole 231 and the outer wall of the small-diameter portion 21b, a limiting portion 223 is arranged at the top of the side wall of the limiting block 22, the limiting portion 223 can abut against the outer wall of the second sleeve 21, and the limiting block 22 is prevented from falling into the second through hole 211.
As shown in fig. 6, the sidewall 234 of the receiving groove 232 is inclined in a trumpet shape from the bottom of the receiving groove 232 to the wall of the receiving hole 231, so that the limiting block 22 can be conveniently moved into or out of the receiving groove 232.
As shown in fig. 10, in some embodiments, the second through hole 211 is a stepped hole having a large diameter portion and a small diameter portion that communicate with each other. The end of the first sleeve 1 penetrates into the large diameter portion of the second through hole 211 to facilitate the connection of the first sleeve 1 and the second sleeve 21.
As shown in fig. 4, 5 and 11, the rotary sleeve 23 is provided with a damping structure 4, the end surface of the second sleeve 21 located in the accommodating hole 231 is provided with a damping groove 216, and the damping groove 216 is adapted to the damping structure 4. When not acted upon by an external force, the damping structure 4 and the damping groove 216 cooperate to limit the rotation of the rotary sleeve 23, so that the rotary sleeve 23 is stabilized in the locked state or the unlocked state.
For example, the accommodating hole 231 of the rotary sleeve 23 is a stepped hole, and the small diameter portion 21b of the second sleeve 21 is located at the large diameter portion of the accommodating hole 231. A damping hole 235 is provided on a shoulder of the accommodation hole 231. The damping structure 4 includes a latch 41 and a spring 42, the latch 41 is slidable in the damping hole 235, and the spring 42 is located between the latch 41 and the bottom of the damping hole 235. The spring 42 can push the latch 41 to move out of the damping hole 235. The damping groove 216 is a V-shaped groove adapted to the clamping column 41. The rotation of the rotary sleeve 23 is restricted by the latch 41 sliding into the damping groove 216.
As shown in fig. 2, both ends of the first through hole 11 of the first sleeve 1 are provided with bushings, and the bushings are adapted to the surgical tool 200, so as to prevent the surgical tool 200 from rubbing against the hole wall of the first through hole 11, and prolong the service life of the first sleeve 1. In this embodiment, the first bush 51 is located at an end of the first through hole 11 away from the second sleeve 21, and the second bush 52 is located at an end of the first through hole 11 close to the second sleeve 21. Both ends of the first sleeve 1 are provided with pin holes 12, and the first and second bushings 51 and 52 are connected to the first sleeve 1 by fixing pins installed in the pin holes 12. As shown in fig. 5, a pin hole 214 is provided in the side wall of the large diameter portion 21a of the second sleeve 21 to facilitate the attachment of the fixing pin of the second bush 52.
In some embodiments, as shown in fig. 3, the first sleeve 1 has anti-slip lines 13 on its outer wall to facilitate the operator to hold the first sleeve 1.
As shown in fig. 12, embodiments of the present application provide an acetabular cup impactor assembly including a navigation device 100 as described above and an acetabular cup impactor. The acetabular cup impactor comprises a rod body 230 and an impactor 240, wherein the rod body 230 penetrates through the first through hole 11 and the second through hole 211, and the impactor 240 is detachably arranged at the end of the rod body 230. The navigation device 100 locks the shaft 230 and the acetabular cup is disposed at the end of the shaft 230 distal to the striker 240. During operation, the striking beater 240 is used for embedding the acetabular cup prosthesis into the acetabulum, and the navigation device 100 can accurately determine the placement angle of the acetabular cup.
As shown in fig. 13 and 14, an end surface of the striker 240 is provided with an insertion hole 241 and a pin hole 243, a side wall of the striker 240 is provided with a button hole 242 communicating with the insertion hole 241, and the button hole 242 also communicates with the pin hole 243. The end of the rod 230 is matched with the insertion hole 241, and a locking groove 231 is formed at the end of the rod 230 inserted into the insertion hole 241.
The acetabular cup impactor further includes: a button 250, a resilient member 260, and a limit pin 270. The button 250 is slidably disposed in the button aperture 242. The button 250 includes a pressing portion 251 and a catching portion 252, and the catching portion 252 is provided on a bottom surface of the pressing portion 251. The engaging portion 252 has a substantially rectangular shape and has a fourth through hole 253. The rod body 230 can be inserted into the fourth through hole 251. A sliding groove 254 is provided on a sidewall of the pressing portion 251, and a long side of the sliding groove 254 is parallel to a sliding direction of the button 250.
The elastic member 260 is disposed in the button hole 242, and the elastic member 260 is located between the button 250 and the bottom of the button hole 242. When the rod 230 penetrates through the fourth through hole 251, the engaging groove 231 of the rod 230 corresponds to the engaging portion 252 of the button 250, and the elastic member 260 can push the engaging portion 252 to engage in the engaging groove 231, so as to limit the axial movement of the striker 240 relative to the rod 230. Optionally, the resilient member 260 is a spring.
One end of the stopper pin 270 is located in the pin hole 243 of the striker 240, and the other end of the stopper pin 270 is located in the sliding groove 254 of the button 250, so that the stopper pin 270 can restrict the button 250 from being ejected out of the button hole 242 when the striker 240 is not connected to the lever 230. When the striker 240 needs to be detached, the button 250 is pressed to detach the striker 240 from the lever 230.
The embodiments of the present application are described in detail above. The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the technical solutions and the core ideas of the present application. Therefore, the person skilled in the art should, according to the idea of the present application, change or modify the embodiments and applications of the present application based on the scope of protection of the present application. In view of the above, the description should not be taken as limiting the application.
Claims (10)
1. A navigation device for a surgical tool, comprising:
a first sleeve having a first through hole;
the locking structure is fixedly arranged at the end part of the first sleeve and provided with a second through hole, the axis of the second through hole is collinear with the axis of the first through hole, the surgical tool penetrates through the first through hole and the second through hole, and the locking structure can lock the surgical tool in the second through hole;
a tracer disposed on the first sleeve.
2. The surgical tool navigation device of claim 1, wherein the locking structure comprises:
the second through hole is formed in the second sleeve, the second sleeve is arranged at the end of the first sleeve, and a limiting hole communicated with the second through hole is formed in the side wall of the second sleeve;
the limiting block is arranged in the limiting hole in a sliding manner;
the rotary sleeve is provided with an accommodating hole, an accommodating groove is formed in the wall of the accommodating hole, a guide groove communicated with the accommodating hole is formed in the side wall of the rotary sleeve, part of the second sleeve and the limiting block are located in the accommodating hole, the limiting block can partially enter the accommodating groove when the accommodating groove corresponds to the limiting block, and the limiting block can partially enter the second through hole by rotating the rotary sleeve;
the third sleeve is provided with a third through hole, the rotating sleeve penetrates through the third through hole, and the third sleeve is connected with the second sleeve;
and the guide pin is arranged on the side wall of the third sleeve and penetrates into the guide groove of the rotating sleeve.
3. The surgical tool navigation device of claim 2, wherein the surface of the stop block that is capable of contacting the rotating sleeve is a convex curved surface.
4. The navigation device of a surgical tool of claim 2, wherein the side wall of the receiving slot is a sloped surface.
5. The surgical tool navigation device of claim 2, wherein the second through hole is a stepped hole, and an end of the first sleeve penetrates into a large diameter portion of the second through hole.
6. The surgical tool navigation device of claim 2, wherein the second sleeve is provided with a damping groove on an end surface of the receiving hole;
the containing hole of the rotary sleeve is a stepped hole, the second sleeve is located on the large-diameter portion of the containing hole, a damping structure is arranged on a shoulder of the containing hole, and the damping structure is matched with the damping groove to limit the rotation of the rotary sleeve.
7. The navigation device of a surgical tool of claim 1, wherein both ends of the first through hole of the first sleeve are provided with bushings.
8. A navigation device for a surgical tool as claimed in claim 1, wherein the first sleeve is provided with anti-slip threads on an outer wall thereof.
9. An acetabular cup impactor assembly comprising:
a navigation device for a surgical tool as claimed in any one of claims 1 to 8;
the acetabular cup impactor comprises a rod body and an impactor body, wherein the rod body penetrates through the first through hole and the second through hole, and the rod body is detachably connected with the impactor body.
10. The acetabular cup impactor assembly according to claim 9, wherein the impactor has an insertion hole, the sidewall of the impactor is provided with a button hole communicating with the insertion hole, the end of the rod body inserted into the insertion hole is provided with a catch, and the acetabular cup impactor assembly further comprises:
the button is slidably arranged in the button hole, a fourth through hole is formed in the button, and the rod body penetrates into the fourth through hole;
the elastic piece is arranged in the button hole and can push the button to be clamped into the clamping groove of the rod body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223524959.4U CN218870472U (en) | 2022-12-28 | 2022-12-28 | Navigation device of surgical tool and acetabular cup impactor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223524959.4U CN218870472U (en) | 2022-12-28 | 2022-12-28 | Navigation device of surgical tool and acetabular cup impactor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218870472U true CN218870472U (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223524959.4U Active CN218870472U (en) | 2022-12-28 | 2022-12-28 | Navigation device of surgical tool and acetabular cup impactor assembly |
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| Country | Link |
|---|---|
| CN (1) | CN218870472U (en) |
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- 2022-12-28 CN CN202223524959.4U patent/CN218870472U/en active Active
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