RU2736396C1 - Retractor system of iov - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely to a retractor system used in microneurosurgical operations for dilatation of cerebral operative wounds with brain pens. Retractor system comprises a clamp for fixing the system to the operating table, flexible arms each provided with medial spatulas and miniclamps on the distal ends of the flexible arms for fixing the cerebral putties and a linkage device for movement. Link device is composite and comprises at least three links interconnected perpendicular to each other with reciprocal and rotary movements between themselves and rigid fixation in any required optimum position. First link is L-shaped with larger and smaller bars when larger rod is arranged in clamp using standard clamp at its vertical position, and smaller rod in horizontal position, fixed by fixing bolt. Second link also has L-shape with larger and smaller bars when larger rod is arranged in smaller rod of first link, and smaller rod is in vertical position, fixed by fixing bolt. Third link is made in the form of one rod when arranged in smaller rod of second link on one side and has a connection unit on its other side for installation of the instrumentation equipment containing a tool cup for surgical instruments and a support for quilting jackets placed on it. At the distal end of the third link, a fixation base in the form of a plate for fixation of flexible arms, as well as an instrumental sleeve and a support is installed in an optimal position, fixation base in the form of a plate allows fixing them in the optimal direction by a fixing bolt placed in the hole in the plate center by means of rotation around its axis for arrangement in the optimum direction, wherein placed on distal ends of flexible arms miniclamps are made with ball-and-hinge mechanisms.

EFFECT: using the invention enables providing the possibility of personalization of intraoperative neurosurgical tactics, minimal risk for the patient and maximum comfort for the surgeon.

1 cl, 6 dwg

Description

The invention relates to medicine, namely to the device of a retractor system used in microneurosurgical operations to dilute the edges of a cerebral operating wound with cerebral spatulas, which increases the possibility of personalizing intraoperative neurosurgical tactics, minimal risk for the patient and maximum comfort for the surgeon.

Known retractor system MAST QUADRANT, which is a tubular system of retractors to provide surgeons with the ability to freely remove tissue using tools used to access the spine during operations, the search engine "Retractor system MAST QUADRANT with accessories".

Known retractor system, which is a tubular system of retractors to provide surgeons with the ability to freely remove tissue by means of tools used to access the cerebral cranial wound during microneurosurgical operations, high technology in surgery in Germany, the search system "Skull stabilization systems DORO".

There is a known method for robotic surgery when positioning a manipulating arm in a coordinate system (X, Y, Z) and a device with a manipulating arm having an instrument block configured to be connected to the manipulating arm of the device and containing a surgical instrument with an instrumental shank capable of being directed through a hole in the patient's body to the target area, RU No. 2719931C2, А61В34 / 20, А61В34 / 30, А61В90 / 13, А61В90 / 30, 23.04.2020; RU No. 2719919 C2, А61В34 / 20, А61В34 / 30, 23.04.2020.

The known retractor systems have large dimensions and individual design, and the technical features that coincide with the technical features of the invention have not been found.

Known retractor system, including a clamp for fixing the system to the operating table, flexible arms, each made with cerebral spatulas and mini-clamps at the distal ends of the flexible arms for fixing the spatulas, respectively, and a link device for moving (LeylaBrain RetractorSystem), a search system, ebay.com / p / 1169551421.

This technical solution is taken as the closest analogue of the present invention.

The design of the closest analogue has the following disadvantages:

- the device for moving consists of three links, which are connected coaxially, and contains a unit for their fixed connection;

- the fixation base allows you to fix flexible arms only in strictly defined directions;

- cerebral spatulas are rigidly fixed in flexible hands with mini-clamps;

- the clamp is made using a special complex technology.

The retractor system of the closest analogue has rather large dimensions and its main elements are located above the patient, which creates inconvenience for the surgeon during the operation, reduces the comfort of the surgeon's work, and reduces the reliability and functionality of the system.

The present invention is based on the solution of the problem, which allows to reduce the size and cost of the retractor system, improve the quality of microneurosurgical operations and expand the functionality.

The technical result of the present invention is to increase the accessibility and accuracy in use, to miniaturize the retractor system, to increase the reliability and convenience of the surgeon and reduce intraoperative risk, to expand the functionality: a miniature retractor system and instrumental equipment.

According to the invention, this problem is solved due to the fact that the retractor system includes a clamp for fixing the system to the operating table, flexible arms and a link device for moving. Flexible arms are each made with cerebral spatulas and minicrimps at their distal ends to fix the cerebral spatulas, respectively.

The link device is made composite and contains at least three links connected to each other perpendicular to each other with the possibility of reciprocating and rotational movements between each other and rigid fixation in any required optimal position.

The first link is L-shaped with larger and smaller rods when the larger rod is placed in the clamp using a standard clamp when it is vertically positioned, and the smaller one is horizontally positioned, fixed with a fixing bolt.

The second link also has an L-shape with larger and smaller rods when the larger rod is placed in the smaller rod of the first link, and the smaller rod is in a vertical position, fixed by a fixing bolt.

The third link is made in the form of one rod when placed in the smaller rod of the second link on one side and has a connecting unit on the other side for installing tooling equipment.

The instrumental equipment contains an instrumental cup for surgical instruments and a pad for quilted jackets placed on the instrument cup.

At the distal end of the third link, the fixation base is installed in the optimal position in the form of a plate for fixing flexible arms, as well as an instrument cup and stand.

The plate-shaped fixing base allows the flexible arms to be fixed in the optimal direction with a fixing bolt placed in the hole in the center of the plate, by rotating about the axis of the fixing bolt for optimal positioning.

At the same time, the minipubs placed on the distal ends of the flexible arms are made with ball joint mechanisms, respectively.

The applicant has not identified sources containing information on technical solutions identical to the present invention, which allows us to conclude that it meets the "novelty" criterion.

Due to the implementation of the distinctive features of the invention (in conjunction with the features indicated in the limiting part of the claims), important new properties of the object are achieved.

Implementation of the link device for movement in the form of a composite link device of three links and the use of a standard clamp to fix the retractor system on the operating table reduces the size and reduces its cost, ensuring miniaturization of the retractor system and increased accessibility during use.

The connection of three links (with an optimal choice of their shapes) to each other perpendicular to each other with the possibility of reciprocating and rotational movements between each other and rigid fixation in any necessary optimal position, also fixing flexible arms in the optimal direction with a fixing bolt installed on the fixing base plate , and also the implementation of mini-clamps with ball-and-socket joints on flexible arms improves the quality of microneurosurgical operations, ensuring a decrease in intraoperative risk, increased reliability, convenience in the work of the surgeon and accuracy in use.

The availability of instrumental equipment expands the functionality of the miniature retractor system.

The applicant is not aware of any publications that would contain information about the influence of the distinctive features of the invention on the achieved technical result. In this regard, according to the applicant, it can be concluded that the proposed technical solution meets the criterion "inventive step".

The essence of the invention is illustrated by drawings:

Figure 1 - Retractor system installed on the operating table, working position, assembled.

Figure 2 - Retractor system, transport position, assembled.

Figure 3 - Retractor system, transport position, disassembled.

Figure 4 - Retractor system, flexible arms, disassembled.

Figure 5 - Retractor system, instrumental equipment, disassembled.

Figure 6 - Retractor system, prototype, disassembled, reproduction.

FIG. 6 is informational and illustrative.

Figures 1-5 show: Operating table - 1.

Standard clamp (for tabletop 1) - 2.

Retractor system (mounted on table edge 1) - 3.

Tool equipment (on system 3) - 4,

glass for surgical instruments (equipment 4) - 5,

stand for quilted jackets (fixed on glass 5) - 6.

First flexible arm (systems 3) - 7.

Second flexible arm (systems 3) - 8.

Brain spatula (hands 7) - 9.

Brain spatula (hands 8) - 10.

Miniplamp (at the distal end of the hand 7 to fix the spatula 9) - 11,

ball joint mechanism (miniplamp 11) - 12.

Miniplamp (at the distal end of the hand 8 to fix the spatula 10) - 13,

Ball joint mechanism (mini-clamps 13) - 14.

Composite link device for moving (arms 7 and 8) - 15.

The first link is L-shaped with a fixing bolt (devices 15) - 16,

large barbell (links 16) - 17,

smaller bar (link 16) - 18.

The second link is L-shaped with a fixing bolt (device 15) - 19,

large barbell (link 19) - 20,

smaller bar (link 19) - 21.

The third link in the form of one rod (device 15) - 22.

Connecting unit (on link 22 for glass 5 with stand 6) - 23.

Fixation base in the form of a plate (on the link 22 hands 7 and 8, glasses 5 with stand 6) - 24,

fixing bolt (base 24) - 25.

The retractor system includes a clamp for fixing the system 3 to the operating table 1, flexible arms 7 and 8 and a link device 15 for moving. Flexible arms 7 and 8 are each made with cerebral spatulas 9 and 10 and minicrimps 11 and 13 at the distal ends of flexible arms 7 and 8 for fixing cerebral spatulas 9 and 10, respectively.

Link device 15 is made composite and contains at least three links 16, 19 and 22, connected to each other perpendicular to each other with the possibility of reciprocating and rotational movements between each other and rigid fixation in any required optimal position.

The first link 16 has an L-shaped shape with larger 17 and smaller 18 rods when the larger rod 17 is placed in the clamp using a standard clamp 2 with its vertical position, and the smaller rod 18 in a horizontal position, fixed with a fixing bolt.

The second link 19 also has an L-shape with a larger 20 and smaller 21 rods when the larger 20 rods are placed in the smaller 18 rods of the first link 16, and the smaller 21 rods are in a vertical arrangement, fixed by a fixing bolt.

The third link 22 is made in the form of one rod when placed in the smaller rod 21 of the second link 19, on one side of it, and has a connecting unit 23, on the other side, for installing the tool equipment 4.

The instrumental equipment 4 contains an instrumental cup 5 for surgical instruments and a support 6 for quilted jackets, placed on an instrumental cup 5.

At the distal end of the third link 22, the fixation base 24 is installed in the optimal position in the form of a plate for fixing flexible arms 7 and 8, also a tool cup 5 and a support 6.

The fixing base 24 in the form of a plate allows the flexible arms 7 and 8 to be fixed in the optimal direction by the fixing bolt 25 located in the hole in the center of the plate by rotating around the axis of the fixing bolt 25 for positioning in the optimal direction.

At the same time, placed on the distal ends of flexible arms 7 and 8, miniprims 11 and 13 are made with ball joint mechanisms 12 and 14, respectively.

The retractor system is used as follows.

The proposed retractor system is used as part of neurosurgical equipment for neurosurgical operations (for example, on the brain).

The patient's head is placed in a standard head holder.

In the usual way, a skin incision is made, an operating bone defect is formed, the dura mater is dissected, and the brain is exposed.

Through sterile linen at the edge of the operating table 1 on the right (or on the left), a standard clamp 2 is fixed as close to the patient's head as possible.

A large 17 bar of the first L-shaped link 16 is placed in the hole of a standard clamp 2, and its smaller 18 bar is fixed with a fixing bolt with a horizontal position towards the patient's head.

In the smaller 18 bar of the first L-shaped link 16, a larger 20 bar of the second L-shaped link 19 is introduced, and its smaller 21 bar is fixed vertically with a fixing bolt.

Into the smaller 21 bar of the second L-shaped link 19, the third link 22 is introduced in the form of one bar, on one side of it, and on the other side of it, through the connecting unit 23, instrumental equipment 4 is installed, containing an instrument cup 5 for surgical instruments and a stand 6 for quilted jackets, placing it on the instrument glass 5.

In the upper part of the third link 22, the fixation base 24 in the form of a plate for fixing flexible arms 7 and 8 is installed in the optimal position. Brain spatulas 9 and 10 are placed in the mini-clamps 11 and 13, made with ball joint mechanisms 12 and 14, respectively.

The retractor system is now ready for use.

After dissection of the cerebral cortex, the curved parts of the cerebral spatulas 9 and 10 (one or two) are placed on its edges. During the operation, the brain spatulas 9 and 10 are gradually immersed in the depths of the brain, and then diluted, ensuring the expansion of the brain wound and the ability of the neurosurgeon to manipulate at the required depth.

After the completion of the manipulations, the cerebral spatulas 9 and 10 are removed from the brain wound and the retractor system 3 is removed from the standard clamp 2 of the operating table 1.

The operation is completed according to the general rules.

The use of the proposed retractor system is available for use in any medical conditions, for example, in extreme medicine.

The proposed "Iova Retractor System" is manufactured industrially and is used during microneurosurgical operations, which determines, according to the applicant, the compliance of the invention with the criterion of "industrial applicability".

The proposed invention makes it possible to reduce the size and cost of the retractor system, improve the quality of microneurosurgical operations while increasing the reliability and convenience of the surgeon and reducing intraoperative risk, and expanding the functionality.

Claims (1)

A retractor system, including a clamp for fixing the system to the operating table, flexible arms, each made with cerebral spatulas and minicrimps at the distal ends of the flexible arms for fixing cerebral spatulas, respectively, and a link device for movement, characterized in that the link device is made composite and contains at least three links, connected to each other perpendicular to each other with the possibility of reciprocating and rotational movements between each other and rigid fixation in any necessary optimal position, and the first link has an L-shape with a larger and smaller rods when placing a larger rod in a clamp using a standard clamp in its vertical position, and a smaller bar in a horizontal position, fixed by a fixing bolt, the second link also has an L-shape with a larger and smaller bar when placing a larger bar in the smaller bar of the first link, and the smaller bar in vertical arrangement, fixed by a fixing bolt, and the third link is made in the form of one bar when placed in the smaller bar of the second link on one side and has a connecting unit on the other side for installing instrumental equipment containing an instrument cup for surgical instruments and a stand for quilted jackets, placed on it, in addition, at the distal end of the third link, the fixation base in the form of a plate for fixing flexible arms, also a tool holder and a stand is installed in the optimal position, the fixation base in the form of a plate allows them to be fixed in the optimal direction with a fixing bolt placed in the hole in the center of the plate, by rotating around its axis for positioning in the optimal direction, while the mini-clamps placed on the distal ends of the flexible arms are made with ball-and-socket joints, respectively.

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