CN117860377B - Probe assembly for neurosurgery - Google Patents
Probe assembly for neurosurgery Download PDFInfo
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- CN117860377B CN117860377B CN202311803126.8A CN202311803126A CN117860377B CN 117860377 B CN117860377 B CN 117860377B CN 202311803126 A CN202311803126 A CN 202311803126A CN 117860377 B CN117860377 B CN 117860377B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B2034/2046—Tracking techniques
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Abstract
本发明公开了一种神经外科手术用探针组件，包括探针，所述探针包括相互滑动套接的外套筒和内探针，所述外套筒上设置有膨大部，所述内探针的定位端伸出所述外套筒，所述内探针与所述膨大部之间还设置有用于复位的弹性件；还包括压力传感器，所述压力传感器用于检测所述内探针移动过程中挤压力。本发明提供的组件，所述内探针会首先接触到凹槽的底部，由于所述内探针套接于所述外套筒，在接触到凹槽的底部后内探针会向外套筒内收缩，此时弹性件会挤压压力传感器，当压力传感器达到预设压力，此时使得机械臂停止向下挤压内探针，如此既确保了探针插入到凹槽的底部，也保证了探针每次插入的力度相同。
The present invention discloses a probe assembly for neurosurgery, including a probe, wherein the probe includes an outer sleeve and an inner probe that are slidably sleeved with each other, an enlarged portion is provided on the outer sleeve, the positioning end of the inner probe extends out of the outer sleeve, and an elastic member for resetting is also provided between the inner probe and the enlarged portion; and a pressure sensor is also provided, wherein the pressure sensor is used to detect the squeezing force during the movement of the inner probe. In the assembly provided by the present invention, the inner probe will first contact the bottom of the groove, and since the inner probe is sleeved on the outer sleeve, the inner probe will shrink into the outer sleeve after contacting the bottom of the groove, and the elastic member will squeeze the pressure sensor at this time. When the pressure sensor reaches the preset pressure, the mechanical arm stops squeezing the inner probe downward, thereby ensuring that the probe is inserted into the bottom of the groove and that the force of each insertion of the probe is the same.
Description
Technical Field
The invention relates to the technical field of surgical instruments, in particular to a probe assembly for neurosurgery.
Background
With the progress of science and medicine, surgical operations are increasingly widely and popularizing in application of preoperative positioning, intra-operative position adjustment and intra-operative instrument introduction by using a surgical robot, and positioning accuracy detection of the tail end of the surgical robot is becoming a necessary and important link.
The surgical robot comprises a mechanical arm, surgical navigation software, an optical tracking and positioning instrument, a special instrument vehicle, a positioning marker and a probe, wherein the surgical navigation software reads CT/MRI images scanned before a patient is operated, a three-dimensional model of the cranium is created, and a doctor sets a surgical target point and a path on the model according to own experience and judgment. The optical tracking positioner automatically and visually recognizes the characteristic mark block, and the mechanical arm registration and the patient registration are rapidly completed, so that the conversion relation between the image space and the mechanical arm space is established. The mechanical arm realizes accurate automatic positioning and navigation on the planning target spot and the path according to the registration conversion result, locks the joint after the mechanical arm is in place, and loads the surgical instrument to support the operation. The mechanical arm registration establishes a conversion relation between the mechanical arm space and the optical tracking and positioning instrument space, and the patient registration establishes a conversion relation between the image space and the optical tracking and positioning instrument space.
During operation, an operation probe is generally required to be installed on the tail end of a mechanical arm of a robot to determine the operation position, positioning markers are mostly matched with the probe to realize positioning in the prior art, and the operation is generally that a plurality of positioning markers are attached to the brain of a patient before operation, so that flexible contact type patient registration can be realized. The positioning markers are respectively provided with a hemispherical groove, and because the positioning markers need to be in contact registration, the external reference points are arranged at the bottoms of the grooves, the positioning markers can be imaged on the preoperative images, and the coordinates of the external reference points in the image space can be obtained by marking and scanning the bottoms of the marking point grooves. The tail end of the probe is tightly attached to the bottom of the groove, and the optical tracking and positioning mark blocks on the probe are identified and tracked through the optical tracking and positioning instrument, so that the coordinates of a plurality of external reference points in the space of the optical tracking and positioning instrument can be sequentially obtained.
For example, the application of the name of the patent application of the surgical navigation system based on the optical positioning method for the robot operation is entitled to the 6 th and 10 th of the year of the grant bulletin number CN100496429C, firstly, three marker bits are designed on a robot base to mark two coordinate axis directions of a reference coordinate system of the robot, then the three markers are extracted through an optical tracker positioning pointer, and the three markers are simultaneously collected when a robot probe and the optical tracker positioning pointer are in butt joint, and finally, the coordinate interchange of the optical tracker and the robot system is realized through a space coordinate conversion algorithm.
In the prior art, when the positioning coordinates are obtained, the probe is required to be inserted into and abutted against the bottom of the groove of the positioning marker, but as the positioning marker and the human body are of soft structures, the extrusion pressure of the probe cannot be controlled in the prior art, the probe can deform corresponding to human tissues during the positioning operation of the positioning marker, and the extrusion pressure of each time is different, so that each time of positioning operation is slightly different, and the operation precision is affected.
Disclosure of Invention
The object of the present invention is to provide a probe assembly for neurosurgery, which solves the above-mentioned drawbacks of the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
the probe assembly for the neurosurgery comprises a probe, and further comprises a pressure sensor, wherein the probe comprises an outer sleeve and an inner probe which are in sliding sleeve connection with each other, an expanding part is arranged on the outer sleeve, the positioning end of the inner probe extends out of the outer sleeve, an elastic piece used for resetting is further arranged between the inner probe and the expanding part, and the pressure sensor is used for detecting extrusion force in the moving process of the inner probe.
The probe assembly for neurosurgery further comprises a positioning marker, wherein the positioning marker is provided with a groove, and the positioning end of the inner probe is inserted into the groove in the insertion stroke of the probe.
The probe assembly for neurosurgery further comprises an adapter for clamping the expanding portion.
The probe assembly for neurosurgery comprises the inner probe, wherein the inner probe is provided with the locking rod, the inner probe is provided with the first locking mechanism, the first locking mechanism comprises a first radial rod, the first radial rod is provided with the axial groove, the adapter is mounted on the stroke of the expansion part, and the first locking mechanism is provided with an unlocking position so that the locking rod axially passes through the axial groove.
According to the probe assembly for the neurosurgery, the positioning end of the inner probe is sleeved with the collar, the collar is rotatably provided with the rotating block, and in the insertion stroke of the probe, the groove wall of the groove can extrude the rotating block to enable the rotating block to rotate.
The probe assembly for neurosurgery further comprises a second locking mechanism, wherein the second locking mechanism comprises a second radial rod and an L-shaped rod, the L-shaped rod is connected with the second radial rod in a sliding mode, and the L-shaped rod stretches into the inner portion of the inner probe through an opening groove on the inner probe to lock the inner probe.
In the probe assembly for neurosurgery, the pushing rod is arranged on the lantern ring, and in the positioning and inserting stroke of the probe, the pushing rod pushes the L-shaped rod to leave the inner part of the inner probe.
In the probe assembly for neurosurgery, the radial dimension of the collar is smaller than the inner radial dimension of the groove.
The probe assembly for neurosurgery comprises the L-shaped rod, wherein the L-shaped rod comprises a vertical section and a horizontal section, and one end of the horizontal section stretches into the inner probe.
In the technical scheme, in the probe assembly for neurosurgery, on the insertion stroke of the probe, the inner probe can firstly contact the bottom of the groove, and because the inner probe is sleeved on the outer sleeve and the inner probe can shrink inwards towards the outer sleeve after contacting the bottom of the groove, the elastic piece can squeeze the pressure sensor at the moment, and when the pressure sensor reaches the preset pressure, the mechanical arm can stop downwards squeezing the inner probe, so that the probe is ensured to be inserted into the bottom of the groove through the cooperation between the elastic piece and the pressure sensor, and the force of each time of insertion of the probe is ensured to be the same.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of a probe according to an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of a first locking mechanism according to another embodiment of the present invention in an unlocked state;
FIG. 3 is a schematic view of an inner probe positioning end according to another embodiment of the present invention;
FIG. 4 is a schematic view of a probe according to a further embodiment of the present invention;
fig. 5 is a schematic structural view of a positioning marker according to a further embodiment of the present invention.
Reference numerals illustrate:
1. The device comprises an expanding part, 2 parts of an outer sleeve, 3 parts of an inner probe, 3.1 parts of a positioning end, 4 parts of an elastic piece, 5 parts of a pressure sensor, 6 parts of a first radial rod, 6.1 parts of a locking end, 6.2 parts of a pushing end, 7 parts of a locking rod, 8 parts of an axial groove, 10 parts of a second radial rod, 11 parts of an L-shaped rod, 12 parts of a horizontal section, 13 parts of a pushing rod, 14 parts of a sleeve ring, 14.1 parts of a rotating block, 15 parts of a positioning marker, 15.1 parts of a groove, 16 parts of an adapter.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1-5, the invention discloses a probe assembly for neurosurgery, which comprises a probe, wherein the probe comprises an outer sleeve 2 and an inner probe 3 which are in sliding sleeve connection with each other, an expanding part 1 is arranged on the outer sleeve 2, a positioning end 3.1 of the inner probe 3 extends out of the outer sleeve 2, an elastic piece 4 for resetting is arranged between the inner probe 3 and the expanding part, and the probe assembly further comprises a pressure sensor 5, wherein the pressure sensor 5 is used for detecting extrusion force in the moving process of the inner probe 3.
Specifically, the probe comprises an outer sleeve 2 and an inner probe 3 which are in sliding sleeve connection with each other, namely, the outer wall of the middle lower part of the inner probe 3 is sleeved on the inner wall of the outer sleeve 2, preferably, the outer sleeve 2 is cylindrical, an expanding part 1 is arranged on the outer sleeve 2, preferably, the expanding part 1 is cylindrical, the radial dimension of the expanding part 1 is larger than that of the outer sleeve 2, preferably, the length of the inner probe 3 is larger than that of the outer sleeve 2, namely, one end (upper end) of the inner probe 3 is positioned in the expanding part 1, the other end (lower end) of the inner probe 3 extends out of the outer sleeve 2, the extending end is a positioning end 3.1, preferably, the positioning end 3.1 is a thinner tip, namely, the positioning end 3.1 extends out of the outer sleeve 2, an elastic piece 4 is arranged between the inner probe 3 and the expanding part 1, preferably, the elastic piece 4 is a spring, the elastic piece 4 is sheathed on the inner probe 3 and is used for elastically resetting the inner probe 3 after moving, optionally, one end of the elastic piece is abutted or fixedly connected with the inner probe 3, the other end of the elastic piece is abutted or fixedly connected with the inner wall of the expansion part 1, the elastic piece also comprises a positioning marker 15 matched with the inner probe 3, the positioning marker 15 comprises a base used for being attached to a positioning area of a human body, a groove 15.1 is arranged on the base, the groove 15.1 has certain elasticity, preferably, the groove 15.1 is a hemispheric groove body adapting to the positioning end 3.1 of the inner probe 3, the hemispheric groove body is a groove body with a large mouth and small abdomen, namely, the inner radial dimension of the groove is larger than the radial dimension of the mouth, the diameter of the mouth of the groove 15.1 is larger than the diameter of the positioning end 3.1, the groove 15.1 is used for inserting the positioning end 3.1 of the inner probe 3, the pressure sensor 5 is preferably located in the expansion part 1, the pressure sensor 5 is used for detecting the extrusion force between the positioning end 3.1 of the inner probe 3 and the groove 15.1, the extrusion force received by the spring or the inner probe 3 is detected substantially directly, before the positioning end 3.1 is not contacted with the groove 15.1, the positioning success of the inner probe 3 is illustrated by the fact that the elastic element 4 is maintained relatively static (the axial direction of the probe is constant as vertical and the gravity is constant as axial direction is constant when in use), and after the positioning end 3.1 is extruded with the groove 15.1, under the condition of extrusion force, the inner probe 3 is forced to move upwards relative to the outer sleeve 2, namely the extrusion force of the inner probe 3 is converted into the elastic force of the elastic element 4, the extrusion force of the elastic element 4 is detected, at this time, the elastic element 4 extrudes the pressure sensor 5, when the pressure sensor 5 reaches the preset pressure as 0.1N, the positioning success of the inner probe 3 is illustrated, the extrusion is stopped, and the application of the pressure sensor 5 is not consistent, and the positioning accuracy of the existing technology can be fully guaranteed every time.
The adapter 16 is controlled by a mechanical arm to realize corresponding movement, the adapter 16 is used for realizing clamping of the expansion part 1 to control positioning operation of a surgical instrument, on the insertion stroke of the probe, the positioning end 3.1 of the inner probe 3 is extruded to shrink inwards of the outer sleeve 2 when touching the bottom of the groove 15.1, at the moment, the elastic piece 4 is compressed to compress the pressure sensor 5 until the pressure sensor 5 reaches preset pressure, the corresponding mechanical arm stops controlling the adapter to downwards compress the inner probe 3, so that the pressure sensor 5 is compressed by the elastic piece 4 due to inward shrinkage of the inner probe 3, the same force of each insertion is ensured, and meanwhile, the positioning end 3.1 of the inner probe 3 is inserted into the bottom of the groove 15.1 and is tightly attached to the bottom of the groove 15.1.
According to the probe assembly for neurosurgery provided by the embodiment of the invention, on the insertion stroke of the probe, the inner probe 3 can be firstly contacted with the bottom of the groove 15.1, and as the inner probe 3 is sleeved on the outer sleeve 2, the inner probe 3 can shrink inwards towards the outer sleeve 2 after contacting with the bottom of the groove 15.1, at the moment, the elastic piece 4 can press the pressure sensor 5, and when the pressure sensor 5 reaches the preset pressure, the mechanical arm can stop downwards pressing the inner probe 3, so that the probe is ensured to be inserted into the bottom of the groove 15.1 through the cooperation between the elastic piece 4 and the pressure sensor 5, and the force of each time of the probe insertion is ensured to be the same.
In another embodiment of the present invention, a locking rod 7 is disposed on the inner probe 3, the locking rod 7 is radially and fixedly disposed on the inner probe 3, a first locking mechanism is disposed on the expansion portion 1, the first locking mechanism includes a first radial rod 6, the first radial rod 6 is slidably disposed on the expansion portion 1, the sliding direction is perpendicular to the axial direction of the inner probe 3, one end of the first radial rod 6 is a locking end 6.1, the other end of the first radial rod 6 is a pushing end 6.2, the locking end 6.1 is disposed inside the expansion portion 1, the pushing end 6.2 extends out of the expansion portion 1 through an outlet groove formed on the outer wall of the expansion portion 1, the pressure sensor 5 and the elastic member 4 are both disposed below the first radial rod 6 and are also disposed on one side toward the positioning portion 3.1, the locking end 6.1 is shaped like an axial groove 8, if the locking end 6.1 of the first radial rod 6 is a square wave shaped, the other end 6.1 is a bending end 6.2 is disposed on the upper side of the expansion portion, the expansion portion is also connected to the expansion portion 1, the elastic member is connected to the expansion portion 1 through a radial groove (the other end is disposed on the other side of the expansion portion 1, and is connected to the expansion portion 1) in a state of the expansion portion 1, and the expansion portion is connected to the expansion portion through a spring 1 and the expansion portion is connected to the expansion portion, that is, the locking end 6.1 blocks the axial movement path of the first radial rod 6, so that the inner probe 3 cannot move axially to lock the inner probe 3, in the unlocked state, that is, when the adapter clamps the expansion part 1, the inner wall of the adapter 16 is attached to the outer wall of the expansion part 1, at this time, the inner wall of the adapter 16 pushes the pushing end 6.2 to enter the expansion part 1 and compress the spring, that is, the first radial rod 6 performs linear movement, at this time, the axial groove 8 on the first radial rod 6 is axially located above the locking rod 7, so that the locking rod 7 can axially pass through the axial groove 8, that is, at this time, the inner probe 3 can move axially, and the advantage of the first locking mechanism is that the inner probe 3 is locked passively by the first locking mechanism before the operation starts, so that the inner probe 3 cannot compress the pressure sensor 5 due to the gravity of the inner probe 3 or other external forces, so that the elastic piece 4 compresses the pressure sensor 5 to cause inaccurate data of the pressure sensor 5 during the operation, and the positioning accuracy of the probe is lowered.
In still another embodiment of the present invention, the positioning end 3.1 of the inner probe 3 is slidably sleeved with a collar 14, the collar 14 is provided with a rotating block 14.1, the rotating block 14.1 has a certain elasticity, preferably, two opposite sides of the collar are respectively provided with a rotating block 14.1, or a plurality of rotating blocks are circumferentially arrayed, the rotating blocks 14.1 are rotatably connected to the bottom wall of the collar through rotating shafts, preferably, the rotating blocks are L-shaped, the L-shaped rotating blocks comprise vertical blocks and horizontal blocks, the rotating shafts are located on the horizontal blocks, the rotating blocks are attached to the edge area of the collar in the L-shape, so that the rotating blocks can be blocked by the collar 14 to rotate downwards only to be separated from the collar, the outer side face of the vertical section of the rotating block 14.1 is bright and convenient to observe color like yellow, so that when the rotating blocks are attached to the outer side of the collar 14, bright color of the outer side face of the vertical section can be observed, since the groove 15.1 is configured with an inner radial dimension larger than the radial dimension of the opening, the radial dimension of the whole of the collar 14 and the rotating block 14.1 is smaller than the inner radial dimension of the groove and larger than the radial dimension of the opening of the groove, the radial dimension of the collar 14 is smaller than the radial dimension of the opening of the groove 15.1, after the probe is inserted into the groove 15.1, the collar 14 and the rotating block 14.1 are extruded into the groove 15.1 due to the elasticity of the groove 15.1, when the probe is positioned, the mechanical arm pulls the probe upwards to leave the positioning marker 15, the side wall of the groove 15.1 is blocked on the upward movement stroke of the rotating block 14.1 due to the rotating block 14.1 being connected with the collar in a rotating way, so that the rotating block 14.1 is forced to rotate, at the moment, the collar is separated from the groove 15.1 due to the fact that the outer side face of the vertical section of the rotating block 14.1 is bright yellow, after rotation, the side face downwards cannot be directly observed, a doctor can observe the rotation of the rotating block 14.1 through naked eyes, so that the probe is positioned, the sleeve ring 14 is arranged, the probe is positioned more accurately through cooperation between the sleeve ring and the positioning marker 15, the doctor can observe that the sleeve ring 14 is still left on the positioning end 3.1 when the probe is positioned outside the groove 15.1, and the doctor can be warned whether to position the probe again. In this embodiment, the initial state, i.e. the state in which the rotating block 14.1 is attached to the collar 14, can be accomplished by means of friction.
In a further embodiment provided by the invention, the device further comprises a second locking mechanism, the second locking mechanism comprises a second radial rod 10 and an L-shaped rod 11, the second radial rod 10 is fixedly connected to the inner wall of the expansion part 1, the L-shaped rod 11 is radially and slidably connected to the second radial rod 10, a spring (not shown in the figure) is arranged on the L-shaped rod and used for elastic resetting of the L-shaped rod, preferably, the L-shaped rod 11 comprises a vertical section and a horizontal section 12, the horizontal section is a section in the horizontal direction in fig. 5, the vertical section is radially and slidably connected to the second radial rod 10 in the horizontal direction in the figure, an axial open slot is arranged on the outer wall of the inner probe 3, a section of the horizontal section 12 is connected to the vertical section, the other end of the horizontal section 12 is positioned in the open slot, preferably, a wedge-shaped surface is arranged on the other end of the horizontal section 12, before the probe enters the groove 15.1, the second locking mechanism locks the inner probe 3 because the wedge surface is inserted into the open groove, the collar 14 on the positioning end 3.1 of the inner probe 3 is provided with a push rod 13, the push rod 13 extends through the open groove on the inner probe 3, the other end of the push rod 13 is a wedge surface, in the process of inserting the inner probe 3 into the groove 15.1, since the rotating block 14.1 of the collar 14 and the groove 15.1 are both made of elastic materials, the collar is extruded into the groove 15.1, and before extruding into the groove 15.1, the collar 14 is forced to move upwards (away from the side of the positioning end), at this time, the collar 14 drives the push rod 13 to move upwards, the push rod 13 moves to enable the top end of the push rod to extrude the wedge surface on the horizontal section 12, since the L-shaped rod 11 is slidingly connected with the second radial rod 10, one end of the horizontal segment 12 can be moved from the inside of the inner probe 3 to the outside of the inner probe 3, so that the inner probe 3 is unlocked, and the inner probe 3 can retract inwards to be positioned continuously. In this embodiment, the collar 14 is maintained at the position on the inner probe 3 by friction force, that is, no external force pushes the collar 14 not to move axially, and an external force pushes the collar 14 to move axially.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (4)
1. The probe assembly for the neurosurgery comprises a probe and is characterized by comprising an outer sleeve and an inner probe which are in sliding sleeve joint with each other, wherein an expanding part is arranged on the outer sleeve, the positioning end of the inner probe extends out of the outer sleeve, and an elastic piece for resetting is further arranged between the inner probe and the expanding part;
The pressure sensor is used for detecting extrusion force in the moving process of the inner probe, the pressure sensor further comprises a positioning marker, a groove is arranged on the positioning marker, in the inserting process of the probe, the positioning end of the inner probe is inserted into the groove, a lantern ring is sleeved on the positioning end of the inner probe, a rotating block is rotatably arranged on the lantern ring, the rotating block of the lantern ring and the groove are both made of elastic materials, when the probe finishes positioning, the mechanical arm can pull the probe upwards to leave the positioning marker, the rotating block is rotationally connected with the lantern ring, the side wall of the groove can be blocked on the upward moving process of the rotating block, the rotating block can be forced to rotate, the lantern ring can be separated from the groove,
The two opposite sides of the lantern ring are respectively provided with a rotating block, the rotating blocks are rotationally connected to the bottom wall of the lantern ring through rotating shafts, the rotating blocks are L-shaped, the L-shaped rotating blocks comprise vertical blocks and horizontal blocks, the rotating shafts are positioned on the horizontal blocks, the rotating blocks are attached to the edge areas of the lantern ring in an L-shaped manner, the outer side faces of the vertical sections of the rotating blocks are bright colors convenient to observe, the outer side faces of the rotating blocks are downward after rotating, the outer side faces of the rotating blocks cannot be directly observed,
The second locking mechanism comprises a second radial rod and an L-shaped rod, the L-shaped rod is connected with the second radial rod in a sliding mode, the L-shaped rod stretches into the inner part of the inner probe through an opening groove on the inner probe to lock the inner probe, a pushing rod is arranged on the lantern ring, in the positioning and inserting stroke of the probe, the pushing rod pushes the L-shaped rod to leave the inner part of the inner probe, the radial dimension of the whole lantern ring and the rotating block is smaller than the inner radial dimension of the groove and larger than the radial dimension of the opening of the groove, the radial dimension of the lantern ring is smaller than the radial dimension of the opening of the groove, the L-shaped rod comprises a vertical section and a horizontal section, one end of the horizontal section stretches into the inner probe,
The outer wall of the inner probe is provided with an axial open slot, one section of the horizontal section is connected with the vertical section, the other end of the horizontal section is positioned in the open slot, the other end of the horizontal section is provided with a wedge surface, before the probe enters the groove, the second locking mechanism of the inner probe locks the inner probe because the wedge surface is inserted into the open slot, the push rod extends through the open slot on the inner probe, the inner probe is inserted into the travel in the groove, the lantern ring is extruded into the groove, the lantern ring is stressed to move upwards before the lantern ring is extruded into the groove, at the moment, the lantern ring drives the push rod to move upwards, the top end of the push rod extrudes the wedge surface on the horizontal section, and because the L-shaped rod is connected with the second radial rod in a sliding manner, one end of the horizontal section moves from the inner probe to the outer part of the inner probe, the inner probe is unlocked, and the inner probe can shrink inwards and be positioned continuously.
2. The neurosurgical probe assembly of claim 1, further comprising an adapter for gripping the enlarged portion.
3. The neurosurgical probe assembly of claim 2, wherein the inner probe has a locking bar disposed thereon, wherein the inner probe has a first locking mechanism disposed thereon, wherein the first locking mechanism comprises a first radial bar having an axial slot disposed thereon, wherein the adapter is mounted to the enlarged portion of the shaft, wherein the first locking mechanism has an unlocked position such that the locking bar passes axially through the axial slot.
4. A neurosurgical probe assembly according to claim 3, wherein the first locking mechanism comprises a locked condition in which the first radial stem is blocked against axial displacement of the inner probe and an unlocked condition in which the locking stem is passable through the axial slot.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311803126.8A CN117860377B (en) | 2023-12-25 | 2023-12-25 | Probe assembly for neurosurgery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311803126.8A CN117860377B (en) | 2023-12-25 | 2023-12-25 | Probe assembly for neurosurgery |
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| CN118746860B (en) * | 2024-07-25 | 2025-03-04 | 东营新瑞石油科技有限责任公司 | A stability signal probe arm for detecting |
| CN119791799B (en) * | 2025-01-20 | 2025-09-23 | 苏州海宇新辰医疗科技有限公司 | Atrial septal puncture kit |
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