CN112914628A - Expandable brain channel limiting assembly for craniotomy - Google Patents
Expandable brain channel limiting assembly for craniotomy Download PDFInfo
- Publication number
- CN112914628A CN112914628A CN202110069862.XA CN202110069862A CN112914628A CN 112914628 A CN112914628 A CN 112914628A CN 202110069862 A CN202110069862 A CN 202110069862A CN 112914628 A CN112914628 A CN 112914628A
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- Prior art keywords
- sleeve
- connecting rod
- rod
- craniotomy
- rotating
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
- A61B90/17—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins for soft tissue, e.g. breast-holding devices
Abstract
The invention relates to the technical field of medical instruments, in particular to an expandable brain channel limiting assembly for craniotomy. This craniotomy is with expansible brain passageway spacing subassembly includes: an expansion part for fixing the shape of the channel in craniotomy; the number of the expansion parts is multiple; the expansion parts are vertically arranged, and control rods for controlling the diameter change of the expansion parts are arranged on the same sides of the expansion parts; the expansion part is externally sleeved with a cylindrical rubber sleeve. The expandable brain channel limiting assembly for the craniotomy has the characteristics of simple structure, expansion according to needs and low cost.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an expandable brain channel limiting assembly for craniotomy.
Background
Deep brain lesions are common in neurosurgery, for example, hypertensive cerebral hemorrhage is mostly located in the subthalamic region or the ventricle, cavernous hemangioma is usually located under the cortex, central neuroblastoma and meningioma in the trigonal region are located in the ventricle. Removing lesions cleanly and avoiding residues is still the most common treatment mode for deep brain lesions. In order to remove hematoma or remove tumor, the normal brain tissue is inevitably damaged and enters a lesion area, and how to reduce the damage of the normal brain tissue to the maximum extent is a key link for ensuring the operation treatment quality of deep brain lesion.
The method is a common technique for treating the diseases at present by utilizing a special channel and using a microscope or a neuroendoscope to remove deep lesions. The common channels comprise a marketable fixed-caliber channel and a self-made channel (such as a plastic tube and a film of an injector and the like), and the cost of the channel is high and needs about 4000 plus 10000 yuan; although the latter is with low costs, vice wound is big, the use is unstable, and different doctors, different medical centers are difficult unified, foremost, no matter which kind of passageway, all cause the damage to patient's head normal brain tissue easily at the in-process that inserts, increase the operation risk, and the passageway bore is fixed, difficult real-time change, cause certain difficulty to the operation, how to design one kind make the access passageway stable, simple structure, little to brain tissue wound, accord with the passageway subassembly of neurosurgery doctor's operation custom and be the problem that needs to solve urgently.
Disclosure of Invention
The invention aims to provide an expandable brain channel limiting assembly for craniotomy, which aims to solve the technical problems and is simple in structure.
The invention provides an expandable brain channel limiting assembly for craniotomy, which comprises:
an expansion part for fixing the shape of the channel in craniotomy; the number of the expansion parts is multiple;
a plurality of the expansion parts are vertically arranged, and control rods for controlling the diameter change of the expansion parts are arranged on the same side of the expansion parts.
Wherein the expanding portion includes: a first link and a second link; the centers of the first connecting rod and the second connecting rod are rotatably connected, and the first connecting rod and the second connecting rod are grouped; and adjacent groups are rotationally connected.
Rotating balls are arranged at the two ends and the center of the first connecting rod; rotating sleeves matched with the rotating balls are arranged at the two ends and the center of the second connecting rod; the rotating sleeve at the center is sleeved on the rotating ball at the center; the first connecting rod and the second connecting rod are matched and rotatably connected with the rotating sleeve through rotating balls; and two adjacent groups are matched and rotatably connected with the rotating sleeve through the rotating ball.
Wherein the control lever includes: a sleeve and a limiting rod; a limiting rod capable of moving along the axial direction of the sleeve is arranged in the sleeve; the wall of the sleeve is provided with a plurality of uniformly distributed banded holes; the connecting ends of the first connecting rod and the second connecting rod in two adjacent groups are arranged on the sleeve and are rotationally connected with the sleeve, and the connecting ends of the other two first connecting rods and the second connecting rods in the two groups are rotationally connected with the limiting rod; and the connecting ends of the first connecting rod and the second connecting rod which are connected with the limiting rod penetrate through the belt-shaped holes.
Wherein, the sleeve pipe is in threaded connection with the limiting rod.
The connecting ends of the two first connecting rods are rotatably connected with the sleeve; and the connecting ends of the two second connecting rods are rotatably connected with the limiting rod.
The end part of the sleeve is provided with a first limiting part; a second limiting part is arranged on the side wall of the end part of the limiting rod; the first limiting part and the second limiting part are arranged adjacently.
When the second limiting part moves towards the first limiting part and is attached, the rotating connection between the first connecting rods and the second connecting rods reaches the maximum rotating angle.
And a rotating part is arranged at one end of the limiting rod close to the second limiting part.
Wherein, the inside of a plurality of expansion parts is provided with a control rod.
And telescopic cylindrical rubber sleeves are sleeved outside the expansion part and the control rod.
The expandable brain channel limiting assembly for craniotomy has the beneficial effects that: the expansion part in the non-stretching state is inserted into a brain channel formed after craniotomy, the expansion part is unfolded through the control rod, the channel is expanded to the required size, and the structure is simple.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a front view of an expandable brain passageway stop assembly for craniotomy use in accordance with the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic view of the combination of the first link and the second link of FIG. 1;
FIG. 4 is a schematic view of another view of FIG. 3;
FIG. 5 is a schematic view of a cannula of an expandable brain access stop assembly for craniotomy in accordance with the present invention;
FIG. 6 is an enlarged view taken at A in FIG. 5;
FIG. 7 is another perspective view of a cannula of an expandable brain access stop assembly for craniotomy in accordance with the present invention;
fig. 8 is an enlarged view of fig. 7 at B.
Description of reference numerals:
1: an expansion section; 11: a first link; 111: rotating the ball; 12: a second link; 121: rotating the sleeve;
2: a control lever; 21: a sleeve; 22: a limiting rod; 23: a strap-like hole; 24: a first limiting part; 25: a second limiting part; 26: a rotating part; 27. a first protrusion; 28. a second protrusion.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 8, an expandable brain channel stop assembly for craniotomy comprises: an expansion part 1 for fixing the shape of a channel in craniotomy; the number of the expansion parts 1 is multiple; a plurality of the expansion parts 1 are vertically arranged, and the control rod 2 for controlling the diameter change of the expansion parts 1 is arranged on the same side of the expansion parts 1.
The dilating portion 1 in an unstretched state is inserted into a brain passageway formed after a craniotomy, and the passageway is dilated to a desired size by expanding the dilating portion 1 through the control rod 2.
Specifically, the expanding portion 1 includes: a first link 11 and a second link 12; the number of the first connecting rods 11 and the second connecting rods 12 is multiple; the centers of the first connecting rod 11 and the second connecting rod 12 are rotatably connected. The first link 11 and the second link 12 constitute one group, and the adjacent groups constitute a changeable parallelogram.
The first links 11 of one group are connected end to end with the second links of an adjacent group and are rotatably connected and form a closed and ring-like structure after connection.
The second links 12 of one set are connected end to the first links of an adjacent set and are pivotally connected and connected to form a closed and loop-like structure.
The center points of the first link 11 and the second link 12 are rotatably connected. The first link 11 and the second link 12 of the adjacent center points constitute a parallelogram, and the shape of the parallelogram changes with the expansion of the expansion part 1.
Specifically, the end surface of the expansion part 1 has a regular polygonal structure.
The end face of the expansion part 1 is in a regular polygon structure from the view point of the opening end of the expansion part 1, and the view point of the opening end is in a polygon shape because the expansion part 1 is rotatably connected by a plurality of first links 11 and second links 12.
Specifically, two ends and the center of the first connecting rod 11 are provided with rotating balls 111; the two ends and the center of the second connecting rod 12 are provided with rotating sleeves 121 matched with the rotating balls 111; the rotating sleeve 121 is sleeved on the rotating ball 111; the first connecting rod 11 and the second connecting rod 12 are matched and rotatably connected with a rotating sleeve 121 through a rotating ball 111.
The rotating sleeve 121 is sleeved on the rotating ball 111, and the rotating sleeve 121 can be controlled to rotate in multiple angles. Thereby realizing expansion and steering between the first link 11 and the second link 12.
In two adjacent groups, the first connecting rod 11 of one group is connected with the second connecting rod 12 of the other group; the second link 12 of the group is connected to the first link 11 of the other group.
Specifically, the control lever 2 includes: a sleeve 21 and a stop rod 22; a limiting rod 22 capable of moving along the axial direction of the sleeve 21 is arranged in the sleeve 21; the pipe wall of the sleeve 21 is provided with a plurality of uniformly distributed strip-shaped holes 23; the connecting ends of the first connecting rod 11 and the second connecting rod 12 in two adjacent groups are arranged on the second bulge 28 on the sleeve 21 and are rotatably connected with the sleeve 21, and the connecting ends of the other two first connecting rods 11 and the second connecting rods 12 in the two groups are rotatably connected with the limiting rod 22; the connecting ends of the first connecting rod 11 and the second connecting rod 12 connected with the limiting rod 22 pass through the belt-shaped hole 23 and are connected with the first bulge 27.
The first link 11 and the second link 12 connected by the first projection 27 and the second projection 28 are both rotatably connected. Rotating within a certain range. This range is the maximum range of rotation required for the first link 11 and the second link 12 after the expansion portion 1 is deployed.
Selecting two adjacent groups from the plurality of groups, wherein the two groups respectively select the first connecting rod 11 and the second connecting rod 12; the connecting ends of the first connecting rod 11 in one group and the second connecting rod 12 in the other group are arranged on the sleeve 21 and are in rotary connection with the sleeve; similarly, the remaining second connecting rod 12 in one group and the first connecting rod 11 in the other group are selected, and the connecting ends of the two connecting rods are rotatably connected with the limiting rod 22.
The sleeve 21 is hollow, the limiting rod 22 is inserted into the sleeve 21, the sleeve 21 is in threaded connection with the limiting rod 22, the limiting rod 22 rotates in the sleeve 21 to change the relative position of the limiting rod 22 and the sleeve 21, the sleeve 21 and the limiting rod 22 are convenient to control the first connecting rod 11 and the second connecting rod 12 to rotate, and a plurality of axially-arranged strip-shaped holes 23 are formed in the pipe wall of the sleeve 21 to facilitate the first connecting rod 11 and the second connecting rod 12 to be in rotational connection with the limiting rod 22 in the sleeve 21; the first link 11 and the second link 12 are rotatably connected to the outer wall of the casing 21.
When the relative position between the stopper rod 22 and the sleeve 21 is changed by the above connection, the connection end of the first link 11 and the second link 12 moves along with the axial movement of the stopper rod 22 along the sleeve 21. The first connecting rod 11 is rotatably connected with the rotating ball 111 and the rotating sleeve 121 at the central point of the second connecting rod 12, when the connecting ends of the first connecting rod 11 and the second connecting rod 12 arranged on the sleeve 21 are fixed, the connecting ends of the first connecting rod 11 and the second connecting rod 12 arranged on the limiting rod 22 move along with the movement of the limiting rod 22, the connecting angles between the first connecting rod 11 and the limiting rod 22 and the second connecting rod 12 are changed, and the plurality of groups of expansion parts 1 rotate.
When the second connecting rod 12 moves towards the first connecting rod 11, the included angle formed by the second connecting rod 12 and the first connecting rod 11 of the group of expansion parts 1 is small, the group of expansion parts 1 is vertical to the direction of the sleeve 21, and the length of the whole length of the expansion parts 1 is long; conversely, when the second link 12 is away from the first link 11, the length of the expanding portion 1 becomes smaller.
The connecting ends of the two first connecting rods 11 and the second connecting rods 12 are rotatably connected with a sleeve 21; the structure in which the connecting ends of the two first and second links 11 and 12 and the stopper rod 22 rotate enables the expansion part 1 to be unfolded.
Specifically, a first limiting part 24 is arranged at the end part of the sleeve 21; a second limiting part 25 is arranged on the side wall of the end part of the limiting rod 22; the first stopper portion 24 and the second stopper portion 25 are disposed adjacent to each other.
The first limiting part 24 is a circular ring and is arranged at the end part of the sleeve 21; the second limiting portion 25 is a circular plate and is disposed at the end of the limiting rod 22.
Specifically, when the second position-limiting portion 25 moves toward the first position-limiting portion 24 and is attached thereto, the rotational connection between the plurality of first links 11 and the plurality of second links 12 reaches the maximum rotational angle.
The second limiting portion 25 and the first limiting portion 24 are used for limiting the limiting rod 22, so that the limiting rod 22 is prevented from rotating continuously, and the first connecting rod 11 and the second connecting rod 12 are further rotated continuously after reaching the maximum rotation angle to damage the first connecting rod 11 and the second connecting rod 12.
Specifically, one end of the limiting rod 22 close to the second limiting portion 25 is provided with a rotating portion 26.
The rotating portion 26 is an arc-shaped rod, and two ends of the arc-shaped rod are respectively disposed at the edges of the second limiting portion 25. When in use, a doctor can complete the rotation of the limiting rod 22 in the sleeve 21 by twisting the rotating part 26 by hands.
Specifically, a control rod 2 is provided inside the plurality of expansion portions 1.
The control rod 2 has a certain volume and is arranged outside the expansion part 1 to form a bulge, and the bulge can press the inner wall of the channel in the channel, so that the control rod 2 is arranged in the expansion part 1 to avoid the above situation.
Specifically, a telescopic cylindrical rubber sleeve is sleeved outside the expansion part 1 and the control rod 2.
The cylindrical rubber sleeve is elastic, when the rubber sleeve is used, the control rod 2 controls the expansion part 1 to be arranged in the cylindrical rubber sleeve, the cylindrical rubber sleeve is arranged in a channel formed by a craniotomy, the control rod 2 controls the expansion part 1 to be unfolded, and the cylindrical rubber sleeve is supported to form a stable channel, so that subsequent operation is facilitated.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An expandable brain passageway stop assembly for craniotomy procedures, comprising:
an expansion part for fixing the shape of the channel in craniotomy; the number of the expansion parts is multiple;
a plurality of the expansion parts are vertically arranged, and control rods for controlling the diameter change of the expansion parts are arranged on the same side of the expansion parts.
2. The expandable brain passageway stop assembly for craniotomy according to claim 1, wherein a control rod is provided inside a plurality of the expanding portions.
3. The expandable brain tunnel stop assembly for craniotomy according to claim 1, wherein the dilating portion comprises: a first link and a second link; the centers of the first connecting rod and the second connecting rod are rotatably connected, and the first connecting rod and the second connecting rod are grouped; and adjacent groups are rotationally connected.
4. The expandable brain passageway stop assembly for craniotomy according to claim 3, wherein the first connecting rod is provided with rotating balls at two ends and the center; rotating sleeves matched with the rotating balls are arranged at the two ends and the center of the second connecting rod; the rotating sleeve at the center is sleeved on the rotating ball at the center; the first connecting rod and the second connecting rod are matched and rotatably connected with the rotating sleeve through rotating balls; and two adjacent groups are matched and rotatably connected with the rotating sleeve through the rotating ball.
5. The expandable brain tunnel stop assembly for craniotomy according to claim 4, wherein the control rod comprises: a sleeve and a limiting rod; a limiting rod capable of moving along the axial direction of the sleeve is arranged in the sleeve; the wall of the sleeve is provided with a plurality of uniformly distributed banded holes; the connecting ends of the first connecting rod and the second connecting rod in two adjacent groups are arranged on the sleeve and are rotationally connected with the sleeve, and the connecting ends of the other two first connecting rods and the second connecting rods in the two groups are rotationally connected with the limiting rod; and the connecting ends of the first connecting rod and the second connecting rod which are connected with the limiting rod penetrate through the belt-shaped hole.
6. The expandable brain passageway stop assembly for craniotomy according to claim 5, wherein the sleeve is in threaded connection with a stop rod.
7. The expandable brain passageway stop assembly for craniotomy according to claim 5, wherein the end of the sleeve is provided with a first stop part; a second limiting part is arranged on the side wall of the end part of the limiting rod; the first limiting part and the second limiting part are arranged adjacently.
8. The expandable brain tunnel stop assembly according to claim 7, wherein the second stop portion moves towards the first stop portion and the rotational connection between the plurality of first and second links reaches a maximum rotational angle when the second stop portion is engaged.
9. The expandable brain passageway stop assembly for craniotomy according to claim 7, wherein the stop rod is provided with a rotating part at one end near the second stop part.
10. The expandable brain passageway stop assembly for craniotomy according to claim 1, wherein the expandable part and the control rod are externally sleeved with a telescopic cylindrical rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110069862.XA CN112914628B (en) | 2021-01-19 | 2021-01-19 | Expandable brain channel limiting assembly for craniotomy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110069862.XA CN112914628B (en) | 2021-01-19 | 2021-01-19 | Expandable brain channel limiting assembly for craniotomy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112914628A true CN112914628A (en) | 2021-06-08 |
| CN112914628B CN112914628B (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110069862.XA Active CN112914628B (en) | 2021-01-19 | 2021-01-19 | Expandable brain channel limiting assembly for craniotomy |
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| CN (1) | CN112914628B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030032975A1 (en) * | 1999-01-06 | 2003-02-13 | Bonutti Peter M. | Arthroscopic retractors |
| US20080319268A1 (en) * | 2005-12-15 | 2008-12-25 | David Michaeli | Radial Expansible Retractor For Minimally Invasive Surgery |
| CN204642891U (en) * | 2015-04-23 | 2015-09-16 | 达洲橡胶工业有限公司 | Conveyer belt structure |
| CN206261626U (en) * | 2016-08-10 | 2017-06-20 | 邹德威 | A kind of inflatable seamless service aisle and self-expanding approach positioning dilator |
| CN107440750A (en) * | 2017-09-27 | 2017-12-08 | 冯梅 | A kind of novel gynecological cervix dilatation device |
-
2021
- 2021-01-19 CN CN202110069862.XA patent/CN112914628B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030032975A1 (en) * | 1999-01-06 | 2003-02-13 | Bonutti Peter M. | Arthroscopic retractors |
| US20080319268A1 (en) * | 2005-12-15 | 2008-12-25 | David Michaeli | Radial Expansible Retractor For Minimally Invasive Surgery |
| CN204642891U (en) * | 2015-04-23 | 2015-09-16 | 达洲橡胶工业有限公司 | Conveyer belt structure |
| CN206261626U (en) * | 2016-08-10 | 2017-06-20 | 邹德威 | A kind of inflatable seamless service aisle and self-expanding approach positioning dilator |
| CN107440750A (en) * | 2017-09-27 | 2017-12-08 | 冯梅 | A kind of novel gynecological cervix dilatation device |
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| Publication number | Publication date |
|---|---|
| CN112914628B (en) | 2022-05-06 |
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