CN216652444U

CN216652444U - A registration device for operation navigation

Info

Publication number: CN216652444U
Application number: CN202023320962.5U
Authority: CN
Inventors: 楚晨龙; 刘文博; 刘鹏亮
Original assignee: Sinovation Beijing Medical Technology Co ltd
Current assignee: Sinovation Beijing Medical Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-06-03
Anticipated expiration: 2030-12-31

Abstract

The embodiment of the utility model discloses a registration device for surgical navigation. The device comprises a transition part and a thread part, wherein the distal end of the transition part is connected with the proximal end of the thread part, the transition part is of a cone-like structure with the cross section diameter gradually reduced from the proximal end to the distal end, and the thread part is provided with self-tapping threads. In the embodiment of the utility model, the transition part is arranged to be a cone-like structure with the cross section diameter gradually reduced from the proximal end to the distal end, so that when the skull bone screw is used, the screw thread part can be aligned to the scalp, and is slowly screwed into the scalp through the transition part, so that the screw thread part is screwed into the skull bone, the skull bone does not need to be punched, the skull bone screw is directly implanted into the skull bone, and the operation is simplified.

Description

A registration device for operation navigation

Technical Field

The utility model relates to the technical field of medical treatment, in particular to a registration device for surgical navigation.

Background

At present, in a neurosurgery navigation positioning operation, obtaining stable and high-precision registration points is an important condition for improving space registration precision, however, the existing registration point selection generally has two types of methods, one is to select facial feature points such as canthus and nose tip, but because skin is easily affected by skin deformation in the operation, the registration precision is not high, and the same problem exists when marking points are pasted on the surface of the skin; the other method is based on the bone property, the bone nail is implanted in the skull, but the existing bone nail usually needs to be implanted after an incision is cut on the skin and a hole is punched on the skull through an electric drill, so that the injury to a patient is large, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a registration device for surgical navigation, which can be directly implanted into a skull, does not need to punch a hole in the skull, and simplifies the operation. The specific technical scheme is as follows:

in a first aspect, the present invention provides a registration apparatus for surgical navigation, comprising:

a transition portion and a threaded portion;

the distal end of the transition portion is connected with the proximal end of the threaded portion, the transition portion is of a cone-like structure with the cross section diameter gradually reduced from the proximal end to the distal end, and the threaded portion is provided with self-tapping threads.

Optionally, the transition portion is provided with a registration structure.

Optionally, the transition portion further comprises a connecting portion, and a distal end of the connecting portion is connected to a proximal end of the transition portion.

Optionally, the connecting portion is provided with a registration structure.

Optionally, the connecting part is integrally provided for fitting and/or the connecting part is provided with a structure for fitting, preferably the connecting part is provided with a structure for fitting at a proximal end.

Optionally, the connecting part is a regular polygonal prism or a cylinder.

Optionally, the transition portion is provided with a structure for assembly.

Optionally, the structure for assembling is any one or a combination of the following: the straight groove, the cross groove, the inner hexagonal hole, the inner quadrangular hole and the inner triangular hole.

Optionally, the registration structure is a structure or a marker suitable for registration.

Optionally, the registration structure is selected from any one or a combination of: dimples, ball pits, and cross-star markings.

As can be seen from the above, the registration device for surgical navigation provided by the embodiment of the present invention includes a transition portion and a threaded portion, wherein a distal end of the transition portion is connected to a proximal end of the threaded portion, the transition portion is a cone-like structure with a gradually decreasing cross-sectional diameter from the proximal end to the distal end, and the threaded portion has a self-tapping thread. In the embodiment of the utility model, the transition part is arranged to be a cone-like structure with the cross section diameter gradually reduced from the proximal end to the distal end, so that when the skull bone screw is used, the screw thread part can be aligned to the scalp, and is slowly screwed into the scalp through the transition part, so that the screw thread part is screwed into the skull bone, the skull bone does not need to be punched, the skull bone screw is directly implanted into the skull bone, and the operation is simplified. Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the utility model.

The innovation points of the embodiment of the utility model comprise:

1. in the embodiment of the utility model, the transition part is arranged to be a cone-like structure with the cross section diameter gradually reduced from the proximal end to the distal end, so that when the skull bone screw is used, the screw thread part can be aligned to the scalp, and is slowly screwed into the scalp through the transition part, so that the screw thread part is screwed into the skull bone, the skull bone does not need to be punched, the skull bone screw is directly implanted into the skull bone, and the operation is simplified.

2. Compared with a mode of cutting the surface skin and punching the skull, after the registration device provided by the embodiment of the utility model is removed, the wound is smaller, and the prognosis effect is improved.

3. When the registration device provided by the embodiment of the utility model is provided with the registration structure, the registration structure is fixed in the skull bone through bone property and is not adhered to the skin, and the registration device can not move when being screwed into the skull bone, so that the registration precision is improved, and the registration precision is less than 0.2 mm.

4. The thread part has good self-tapping performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is to be understood that the drawings in the following description are merely exemplary of some embodiments of the utility model. For a person skilled in the art, without inventive effort, further figures can be obtained from these figures.

Fig. 1 is a first structural diagram of a registration apparatus for surgical navigation according to an embodiment of the present invention;

FIG. 2 is a second structural diagram of a registration apparatus for surgical navigation according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a third configuration of a registration apparatus for surgical navigation according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of FIG. 1;

FIG. 5 is a diagram illustrating a fourth configuration of a registration apparatus for surgical navigation according to an embodiment of the present invention;

FIG. 6 is a schematic diagram illustrating a fifth configuration of a registration apparatus for surgical navigation according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view of FIG. 5;

FIG. 8(a) is a schematic view of a combination of a registration structure and an assembled structure;

fig. 8(b) is a schematic view of another combination of a registration structure and an assembled structure.

In fig. 1-8 (b), 1 transition part, 2 threaded part, 3 registration structure, 4 connecting part.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

It is to be noted that the terms "comprises" and "comprising" and any variations thereof in the embodiments and drawings of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

The embodiment of the utility model discloses a registration device for surgical navigation, which can be directly implanted into a skull, does not need to punch a hole in the skull, and simplifies the operation. The following provides a detailed description of embodiments of the present invention.

Fig. 1 is a first structural diagram of a registration apparatus for surgical navigation according to an embodiment of the present invention. Referring to fig. 1, a registration apparatus for surgical navigation according to an embodiment of the present invention includes a transition portion 1 and a threaded portion 2. The distal end of the transition portion 1 is connected to the proximal end of the threaded portion 2, and in the present embodiment, the distal end is the end close to the scalp when the registration device for surgical navigation is used, and the proximal end is the end away from the scalp.

The transition portion 1 is a cone-like structure with a cross-sectional diameter gradually decreasing from the proximal end to the distal end, and an outer side surface of the cone-like structure may be concave inward or convex outward, for example, fig. 2 is a second structural schematic diagram of the registration apparatus for surgical navigation according to the embodiment of the present invention, fig. 3 is a third structural schematic diagram of the registration apparatus for surgical navigation according to the embodiment of the present invention, see fig. 2, an outer side surface of the transition portion 1 in fig. 2 is convex outward, see fig. 3, and an outer side surface of the transition portion 1 in fig. 3 is concave inward.

Illustratively, the cone-like structure may be a cone, and the length of the transition portion 1 is not less than 1 mm.

The threaded portion 2 has a self-tapping thread. Since the tapping screw is required to be screwed into the skull bone in use, the length of the tapping screw cannot be too short, and the length of the tapping screw may be not less than 2mm, illustratively, 2mm to 8mm, and preferably, 4 mm.

And aiming at different crowds, the transition part 1 and the thread part 2 can be set to have different lengths, for example, the length of the transition part 1 used by an adult is longer than that of the transition part 1 used by a child, and the length of the self-tapping thread used by the adult is longer than that of the self-tapping thread used by the child.

The following describes a use mode of the registration device for surgical navigation according to an embodiment of the present invention: in use, the threaded portion 2 is aligned with the scalp and is slowly screwed into the scalp and hence the skull via the transition portion 1.

Of course, the form of the self-tapping threads, for example the thread angle, can be adapted in order to make it easier to screw the registration device into the scalp.

In summary, the embodiment of the present invention provides a registration apparatus for surgical navigation, which includes a transition portion 1 and a threaded portion 2, wherein a distal end of the transition portion 1 is connected to a proximal end of the threaded portion 2, the transition portion 1 is a cone-like structure with a gradually decreasing cross-sectional diameter from the proximal end to the distal end, and the threaded portion 2 has a self-tapping thread. In the embodiment of the utility model, the transition part 1 is arranged in a cone-like structure with the cross section diameter gradually reduced from the proximal end to the distal end, so that the threaded part 2 can be aligned to the scalp when in use, and the transition part 1 is slowly screwed into the scalp to further screw the threaded part into the skull, so that the skull is directly implanted into the skull without punching, and the operation is simplified.

Compared with a mode of cutting the surface skin and punching the skull, the method provided by the embodiment of the utility model has the advantages that the wound is small after the registration device is removed, and the prognosis effect is improved.

In order to facilitate the surgical navigation system to identify the position of the registration device implanted in the skull during surgery, fig. 4 is a cross-sectional view of fig. 1, see fig. 4, in one implementation a registration structure 3 is provided at the transition 1. The registration structure 3 may be a structure or a marker suitable for registration use, among others. In use, the surgical navigation system may identify the registration structure and thus know the position of the registration device.

Illustratively, the registration structure 3 is selected from any one or a combination of: the combination of depressions, ball pits and cross star marks may be a combination of depressions and ball pits, a combination of depressions and cross star marks, marks of ball pits and cross star marks, and preferably, the registration structures 3 may be a combination of depressions with a diameter of less than 0.2mm, ball pits with a diameter of more than 1mm, cross star marks, depressions with a diameter of less than 0.2mm and cross star marks.

The registration structure 3 may be disposed at any position of the transition portion 1 that can be identified by the surgical navigation system, and for example, the registration structure 3 may be disposed at the side of the transition portion 1 or at the center of the proximal end of the transition portion 1.

In one implementation, the transition 1 is provided with structure for assembly. Illustratively, the structure for assembly is any one or a combination of: the straight groove, the cross groove, the inner hexagonal hole, the inner quadrangular hole and the inner triangular hole. With continued reference to fig. 1, the assembled structure of fig. 1 is a cross-slot.

When the assembled structure is a straight groove, a straight screwdriver is inserted into the straight groove, and the registration device is screwed into the skull; when the assembled structure is a cross groove, a cross screwdriver is inserted into the cross groove, and the registration device is screwed into the skull; when the assembled structure is a hexagon socket, the device is inserted into the hexagon socket through a hexagon socket wrench, and the registration device is screwed into the skull; when the assembled structure is an inner quadrangular hole, the inner quadrangular hole is inserted by an inner quadrangular wrench, and the registration device is screwed into the skull; when the assembled structure is an inner triangular hole, the registering device is screwed into the skull bone by inserting the matched wrench into the inner triangular hole.

In one implementation, fig. 5 is a fourth structural schematic diagram of the registration apparatus for surgery according to the embodiment of the present invention, and referring to fig. 5, the registration apparatus for surgery according to the embodiment of the present invention may further include a connection portion 4, and a distal end of the connection portion 4 is connected to a proximal end of the transition portion 1.

In order to facilitate that the surgical navigation system can identify the position of the registration means implanted in the skull bone during surgery, in one implementation, the attachment 4 is provided with the registration structure 3 in case the registration means for surgery comprises the attachment 4. The registration structure 3 may be a structure or a marker suitable for registration use, among others. In use, the surgical navigation system may identify the registration structure 3 and thus know the position of the registration device.

The registration structure 3 may be arranged at any position of the connection 4 that is recognizable by the surgical navigation system, for example: the sides of the connecting portion 4 or the center of the proximal end of the connecting portion 4.

Illustratively, the registration structure 3 is selected from any one or a combination of: the combination of depressions, ball pits and cross star marks may be a combination of depressions and ball pits, a combination of depressions and cross star marks, marks of ball pits and cross star marks, and preferably, the registration structures 3 may be a combination of depressions with a diameter of less than 0.2mm, ball pits with a diameter of more than 1mm, cross star marks, depressions with a diameter of less than 0.2mm and cross star marks. Referring to fig. 3, the registration structure 3 in fig. 3 is a ball pit.

The registration structure 3 may also be a feature point of the connecting portion 4 without being separately arranged, for example, one prism vertex at the proximal end of the connecting portion 4 is used, fig. 6 is a schematic diagram of a fifth structure of the registration apparatus for surgical navigation according to the embodiment of the present invention, referring to fig. 6, any prism vertex at the proximal end of the connecting portion 4 may be the registration structure 3, and only one prism vertex is shown in fig. 6; or the structure of the connecting portion 4 itself has easily identifiable points, for example, the interface of the connecting portion is an isosceles triangle, and the vertex of the triangle at the proximal end of the connecting portion 4 is selected as the registration structure 3.

When the registration structure 3 is a recess or ball pit, different types of probes can be provided that match the surgical navigation system with different shapes and sizes of the recess or ball pit.

The registration feature 3 may be located anywhere at the proximal end of the transition 1, and for example, the registration feature 3 may be located at the center of the proximal end of the transition 1.

Of course, the structure of the connecting portion 4 may be various, the connecting portion 4 may be integrally provided for assembly, and/or the connecting portion 4 may be provided with a structure for assembly.

When the connecting portion 4 is used for assembly as a whole, the connecting portion 4 includes, but is not limited to, a prism or a cylinder. The prism body includes a regular polygonal prism such as an isosceles triangular prism, a regular quadrangular prism, a regular hexagonal prism, or a regular octagonal prism. With continued reference to fig. 5, the connection 4 in fig. 5 is a regular hexagonal prism.

When the connecting portion 4 is a prism, the prism can be slipped in using a socket wrench, and the registration device is screwed into the skull.

Illustratively, the structure for assembly may be any one or a combination of: the straight groove, the cross groove, the inner hexagonal hole, the inner quadrangular hole and the inner triangular hole.

When the assembled structure is a straight groove, a straight screwdriver is inserted into the straight groove, and the registration device is screwed into the skull; when the assembled structure is a cross groove, a cross screwdriver is inserted into the cross groove, and the registration device is screwed into the skull; when the assembled structure is the hexagon socket, the registration device is screwed into the skull by inserting a hexagon socket wrench into the hexagon socket; when the assembled structure is an inner quadrangular hole, the inner quadrangular hole is inserted by an inner quadrangular wrench, and the registration device is screwed into the skull; when the assembled structure is an inner triangular hole, the registering device is screwed into the skull bone by inserting the matched wrench into the inner triangular hole.

Fig. 7 is a cross-sectional view of fig. 5, and referring to fig. 7, the screw part 2 may have a self-tapping thread of a variable diameter, which is excellent in self-tapping property, and the fastening can be completed in 3 to 5 seconds. In fig. 7, α is the angle of the tapping 21, α is not more than 115 °, preferably not more than 90 °, most preferably not more than 60 °, β is the angle of the transition 1, β is not more than 110 °, preferably not more than 90 °, most preferably not more than 60 °.

Fig. 8(a) is a schematic view of a combination of a registration structure 3 and an assembled structure, fig. 8(b) is a schematic view of another combination of a registration structure 3 and an assembled structure, and referring to fig. 8(a) and 8(b), the situation of fig. 8(a) and 8(b) may occur when a registration device sets both the registration structure 3 and the assembled structure, fig. 8(a) is a straight slot, the registration structure 3 is a cross-star mark, and one side of the cross-star mark coincides with the straight slot, fig. 8(b) is a cross-slot, the registration structure 3 is a cross-star mark, and a preset angle, such as 45 °, exists between two sides of the cross-star mark and two sides of the cross-slot.

Illustratively, the registration device is made of a non-magnetic material, such as stainless steel or titanium alloy.

Thereby, the enrolment device may be compatible with nuclear magnetic resonance, and screwing the enrolment device into the skull does not affect subsequent nuclear magnetic resonance scanning of the skull.

The registration device in the prior art is adhered to the skin, so that the registration device is easily influenced by skin deformation, and when the skin deforms, the registration device can move, so that the registration accuracy is low, while the registration device provided by the embodiment of the utility model is fixed in the skull by bone and is not adhered to the skin when the registration structure is arranged, and the registration device can not move when being screwed into the skull, so that the registration accuracy is improved, and the registration accuracy is less than 0.2 mm.

Those of ordinary skill in the art will understand that: the figures are merely schematic representations of one embodiment, and the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.

Those of ordinary skill in the art will understand that: modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be located in one or more devices different from the embodiments with corresponding changes. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A registration apparatus for surgical navigation, comprising: a transition portion and a threaded portion;

2. The registration apparatus of claim 1, wherein a proximal end of the transition portion is provided with a registration feature.

3. The registration apparatus of claim 1, further comprising a connection portion, a distal end of the connection portion connecting a proximal end of the transition portion.

4. The registration apparatus of claim 3, wherein the connection portion is provided with a registration feature.

5. The registration apparatus according to claim 3 or 4, wherein the connection part is integrally provided for assembly and/or the connection part is provided with a structure for assembly.

6. The registration apparatus of claim 5, wherein the connection portion is a prism or a cylinder.

7. The registration apparatus according to claim 1 or 2, wherein the transition portion is provided with a structure for fitting.

8. The registration apparatus of claim 5, wherein the structure for assembling is any one or a combination of: the straight groove, the cross groove, the inner hexagonal hole, the inner quadrangular hole and the inner triangular hole.

9. The registration apparatus as claimed in claim 2 or 4, wherein the registration structure is a structure or a marker suitable for registration use.

10. The registration apparatus of claim 9, wherein the registration structure is selected from any one or a combination of: depressions and cross-star marks.