CN213310262U

CN213310262U - Navigation probe for craniocerebral operation

Info

Publication number: CN213310262U
Application number: CN202021621600.7U
Authority: CN
Inventors: 徐永革
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-06-01
Anticipated expiration: 2030-08-05

Abstract

The utility model relates to a navigation probe for craniocerebral operation belongs to medical instrument technical field, has solved among the prior art craniocerebral operation in-process navigation probe location back need remove and lead to the problem that follow-up operation positioning accuracy is low. The utility model discloses a nearly brain end, handheld portion and tail end, nearly brain end and tail end set up respectively at the both ends of handheld portion, the axis coincidence of nearly brain end, handheld portion, tail end, and the navigation probe is equipped with the through-hole, and the through-hole runs through nearly brain end, handheld portion and tail end, the central line of through-hole and the axis coincidence of handheld portion. The utility model discloses a through-hole has been seted up to navigation probe for craniocerebral operation, and the through-hole runs through whole navigation probe, after through navigation probe location in craniocerebral operation, directly passes biopsy needle, direction needle or drainage tube directly from the through-hole and can continue the operation, need not to remove navigation probe, has ensured follow-up surgical instruments and has put into the accuracy nature of brain according to the direction and the degree of depth that the navigation was set for, convenient to use.

Description

Navigation probe for craniocerebral operation

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a navigation probe for craniocerebral operation.

Background

Accurate positioning in craniocerebral operations is very important. Reaching a specific location (target point) in the brain in a defined direction with a defined craniotomy point is often required in neurosurgery. The most convenient and commonly used intraoperative positioning device for neurosurgery is the neuro-navigation system. A commonly used matched instrument on an operating table of the system is a navigation probe. Before operation, the head image data of the patient is input into a navigation software system, in an operating room, after the head of the patient is fixed, head anatomical mark points are marked, so that the real skull of the patient is fused with the skull image data reconstructed in the software, and then the navigation probe is registered.

In the operation, the navigation probe is moved into the operation field, and the direction track and the front end position of the navigation probe are immediately displayed in the brain stereo image of the navigation system screen. At the moment, the distance between the important tissue or tumor boundary around the navigation probe tip and the navigation probe tip can be known through the display of the three-dimensional image, so that support is provided for safe and efficient operation; or after the navigation probe is registered, the navigation probe is used for designing and displaying the operation access in real time, important blood vessels and brain functional areas are avoided, and safety guarantee is provided for the operation. For example, the intracerebral hematoma removal operation can be designed for the position and direction of the tube for placing the hematoma tube for drainage, and can also be designed for the position and direction of the tube for placing the retracting catheter required by the intracerebral hematoma removal operation under an endoscope.

However, if the purpose of the hematoma operation is to place a tube, the navigation probe is removed after confirming the direction depth, and then the drainage tube is placed by reversing the hand, so that the direction and the depth are difficult to keep unchanged, the direction and the target point of the original navigation probe are difficult to be completely matched, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing analysis, an embodiment of the present invention is directed to provide a navigation probe for a craniocerebral operation, so as to solve the problem that the positioning accuracy of the subsequent operation is low due to the need to move away after the positioning of the navigation probe in the existing craniocerebral operation.

The purpose of the utility model is mainly realized through the following technical scheme:

a navigation probe for craniocerebral operations comprises a brain-proximal end, a handheld part and a tail end, wherein the brain-proximal end and the tail end are respectively arranged at two ends of the handheld part, the axes of the brain-proximal end, the handheld part and the tail end coincide, the navigation probe is provided with a through hole, the through hole penetrates through the brain-proximal end, the handheld part and the tail end, and the central line of the through hole coincides with the axis of the handheld part.

Further, the diameter of the through hole is 2-3 mm.

Further, the diameter of the through hole is 4-5 mm.

Further, the length of the navigation probe is 80-160 mm.

Furthermore, a groove is formed in the joint of the handheld portion and the tail end.

Furthermore, the brain proximal end is of a round table structure.

Further, the handheld part is a cylinder with a cross section being a regular hexagon or a circle; the tail end is a column with a cross section of a regular hexagon or a square.

Further, when the cross section of the handheld part is a regular hexagon, the diameter of an inscribed circle of the regular hexagon is 6-16 mm; when the cross section of the handheld part is circular, the diameter of the circle is 6-16 mm.

Further, when the cross section of the handheld part is a regular hexagon, the diameter of the lower bottom surface of the brain proximal end is not larger than the diameter of an inscribed circle of the regular hexagon of the handheld part;

when the cross section of the handheld part is circular, the diameter of the lower bottom surface of the brain proximal end is not larger than that of the handheld part.

Further, when the cross sections of the handheld part and the tail end are both in positive six deformation, the size of the cross section of the handheld part is equal to that of the cross section of the tail end.

Compared with the prior art, the utility model discloses can realize one of following beneficial effect at least:

the utility model discloses a through-hole has been seted up to navigation probe for craniocerebral operation, and the through-hole runs through whole navigation probe, after through navigation probe location in craniocerebral operation, directly passes biopsy needle, direction needle or drainage tube directly from the through-hole and can continue the operation, need not to remove navigation probe, has ensured follow-up surgical instruments and has put into the accuracy nature of brain according to the direction and the degree of depth that the navigation was set for, convenient to use.

The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.

FIG. 1 is a block diagram of a first exemplary embodiment of a navigation probe;

FIG. 2 is a block diagram of a second embodiment of a navigation probe.

Reference numerals:

1-proximal to the brain; 2-a handheld part; 3-tail end; 4-a through hole; 5-groove.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of the invention, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The terms "top," "bottom," "above … …," "below," and "on … …" as used throughout the description are relative positions with respect to components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.

The utility model discloses a specific embodiment, as shown in fig. 1-fig. 2, disclose a navigation probe for craniocerebral operation, including nearly brain end 1, handheld portion 2 and tail end 3, nearly brain end 1 and tail end 3 set up respectively at the both ends of handheld portion 2, nearly brain end 1 is the round platform structure, handheld portion 2 is regular hexagon or circular shape cylinder for the cross section, afterbody 3 is regular hexagon or regular quadrilateral cylinder for the cross section, nearly brain end 1, handheld portion 2, the axis coincidence of tail end 3, the navigation probe is equipped with through-hole 4, through-hole 4 runs through nearly brain end 1, handheld portion 2 and tail end 3, the central line of through-hole 4 and the axis coincidence of handheld portion 2.

Compared with the prior art, the navigation probe for the craniocerebral operation provided by the embodiment is provided with the through hole, the through hole penetrates through the whole navigation probe, after the navigation probe is positioned in the craniocerebral operation, the puncture biopsy needle, the navigation needle or the drainage tube directly penetrates through the through hole to continue the operation, the navigation probe does not need to be removed, the accuracy of the subsequent surgical instruments placed in the brain is ensured, and the navigation probe is convenient to use.

Considering that the diameter of the needle biopsy needle or the guide needle is 2mm at most, the diameter of the through hole 4 is set to 2-3 mm.

Considering that the diameter of the drainage tube is 3-4 mm, the diameter of the through hole 4 is set to be 4-5 mm.

In order to facilitate holding the navigation probe when the navigation probe is internally provided with a tube or a guide needle, the outer diameter of the handheld part 2 or the diameter of the hexagonal inscribed circle is 6-16 mm, and the length of the navigation probe is 80-160 mm.

Further, the diameter of the bottom surface of the brain-proximal end 1 (the bottom surface defining the larger diameter of the two bottom surfaces of the circular truncated cone is the bottom surface) is not larger than the diameter or the inscribed circle diameter of the handheld portion 2, the diameter or the inscribed circle diameter of the handheld portion 2 is equal to the inscribed circle diameter or the side length of the tail end 3, and in this embodiment, the diameter of the bottom surface of the brain-proximal end 1 is equal to the inscribed circle diameter of the handheld portion 2.

In order to avoid scratching a patient or medical staff by the navigation probe in the using process, when the cross section of the handheld part 2 is a regular hexagon, the edge of the handheld part 2 is rounded, the upper bottom surface of the head end 1 is rounded, and the top surface of the tail end 3 is intersected with the side surface to form the edge rounded.

In order to facilitate the puncture biopsy needle, the guide needle or the built-in tube to penetrate into the through hole 4, the joint of the through hole 4 and the top surface of the tail end 3 is chamfered.

It is worth noting that the near brain end 1, the handheld portion 2 and the tail end 3 are integrally formed, a groove 5 is arranged at the joint of the handheld portion 2 and the tail end 3, the groove 5 is used as a positioning groove of a navigation probe, namely, in a craniocerebral operation, the navigation probe is connected with an external fixing device, and the external fixing device is clamped in the groove 5 of the navigation probe.

When a navigation probe with the diameter of 4.3mm and the length of 100mm of the through hole 4 is used for drainage operation, a reflecting marker ball (with a fixed claw) for positioning the navigation probe is arranged at the tail end 3, a virtual needle core with the length of 100mm is attached to the brain-proximal end 1 of the navigation probe, and the temporary navigation probe is registered. An operator holds the pen type navigation probe with the right hand, the brain-proximal end 1 points into the brain, the cranium (brain) entering point, the direction and the target point of the placement tube are selected, after the direction and the position are confirmed, an assistant inserts a drainage tube (12F) with a tube core from the tail end 3 of the navigation probe, the placement depth is 200mm (the length of the navigation probe is 100mm + the length of a virtual needle core is 100mm), the extracranial part drainage tube is fixed by the left hand of a main knife, the tube core is pulled out by the assistant, the navigation probe is removed by the right hand of the main knife, and after the drainage tube is fixed, the follow-up drainage.

When the retraction catheter is placed in an endoscopic surgery, the diameter of the through hole 4 is 2.2mm, the length of the navigation probe is 100mm, the guide needle with the diameter of 2mm is placed in the through hole 4, the length of the guide needle is 230mm, the tail end 3 of the navigation probe is exposed by 30mm when the brain-proximal end 1 of the navigation probe is placed into a target point, the guide needle is fixed, the navigation probe is pulled outwards along the direction of the guide needle, the retraction catheter for the endoscopic surgery is then fed into the target point along the guide needle, the guide needle is removed, and the operation under the endoscope is completed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. The utility model provides a navigation probe for craniocerebral operation, a serial communication port, including nearly brain end (1), handheld portion (2) and tail end (3), nearly brain end (1) and tail end (3) set up respectively at the both ends of handheld portion (2), nearly brain end (1), handheld portion (2), the axis coincidence of tail end (3), the navigation probe is equipped with through-hole (4), nearly brain end (1) is run through in through-hole (4), handheld portion (2) and tail end (3), the central line of through-hole (4) and the axis coincidence of handheld portion (2).

2. A craniocerebral surgical navigation probe according to claim 1, characterized in that the diameter of the through hole (4) is 2-3 mm.

3. A craniocerebral surgical navigation probe according to claim 1, characterized in that the diameter of the through hole (4) is 4-5 mm.

4. The craniocerebral surgery navigation probe of claim 1, wherein the length of the navigation probe is 80-160 mm.

5. A craniocerebral surgical navigation probe according to claim 1, characterized in that a groove (5) is arranged at the joint of the handheld part (2) and the tail end (3).

6. A craniocerebral procedure navigation probe according to claim 1, characterized in that the proximal brain end (1) is of a truncated cone structure.

7. A craniocerebral surgical navigation probe according to claim 1, characterized in that the hand-held part (2) is a cylinder with a regular hexagonal or circular cross-section; the tail end (3) is a column with a cross section of a regular hexagon or a square.

8. The craniocerebral surgical navigation probe according to claim 7, characterized in that when the cross section of the handheld part (2) is a regular hexagon, the diameter of an inscribed circle of the regular hexagon is 6-16 mm; when the cross section of the handheld part (2) is circular, the diameter of the circle is 6-16 mm.

9. A craniocerebral surgical navigation probe according to claim 8, characterized in that when the cross-section of the hand-held part (2) is a regular hexagon, the diameter of the lower bottom surface of the proximal brain end (1) is not greater than the diameter of the inscribed circle of the regular hexagon of the hand-held part (2);

when the cross section of the handheld part (2) is circular, the diameter of the lower bottom surface of the brain proximal end (1) is not larger than that of the handheld part (2).

10. A craniocerebral surgical navigation probe according to claim 8, characterized in that the cross-sectional dimension of the handpiece (2) is equal to the cross-sectional dimension of the tail end (3) when the cross-sections of the handpiece (2) and the tail end (3) are both hexagonally deformed.