Brain retractor device

Abstract

The present technology relates to a brain retractor device for securing a surgical view for an operator, the device being capable of miniaturization and position change. More specifically, the brain retractor device comprises: a body; a pair of retraction arms installed symmetrically, each having one side rotatably coupled to the body and the other side provided with a blade for retracting brain tissue to widen the surgical access within the brain to a predetermined extent; and an elastic body disposed between the pair of retraction arms and applying an external elastic force to widen the gap between the retraction arms, wherein the body is provided with angle control pins for controlling the included angle between the pair of retraction arms, which is widened by the elastic body.

Description

Brain traction device

[0001] This technology relates to a brain traction device that not only allows for miniaturization of the device but also facilitates easy repositioning and ensures the operator's field of vision.

[0002] Unlike early neurosurgical procedures that treated only initial head trauma, the scope of treatment has recently expanded to include the treatment of cerebrovascular diseases, brain tumors, and deep brain lesions.

[0003] As a result, brain traction has become an indispensable element to improve visibility and surgical safety during brain surgery, and consequently, much research is being conducted on brain traction devices.

[0004] As shown in Fig. 1, the brain traction device currently in general use is fixed to a surgical table or to the scalp and skull. This not only consumes a lot of time during the surgical preparation process, but also, because the fixation device used for traction is large and located far from the surgical site, the length of the traction arm used to fix the blade used for actual brain traction to the surgical site is designed to be considerably long.

[0005] As a result, there is a problem in that the visibility and movement of the assistant surgeon required during surgery are limited, and there is a very high risk of safety accidents, such as the blade penetrating the brain due to even a minute impact to the traction device caused by the assistant surgeon's negligence, or damage to the normal brain caused by the excessive spreading of a pair of blades.

[0006] The purpose of the traction device of the present invention is to solve the aforementioned conventional problems by miniaturizing it, making it easy to change the position according to the operator's position so that the length of the blade traction arm can be reduced, and by improving visibility for securing the field of view so as to prevent safety accidents.

[0007] As a means of solving the problem of the aforementioned conventional problems, the brain traction device according to the present invention comprises, in a first embodiment, a body (100), a pair of traction arms (200) which are provided symmetrically to each other, with one side of each being rotatably coupled to the body (100) and the other side having a blade (210) for spreading the brain to a predetermined width, and an elastic body (300) disposed between the pair of traction arms (200) and applying an external force to spread the pair of traction arms (200) by means of elastic force, wherein the body (100) is provided with an angle control pin (130) for controlling the rotation angle of the pair of traction arms (200) spread by the elastic body (300).

[0008] In addition, it is preferable that the gap between the pair of traction arms (200) spread by the elastic body (300) is 1 cm to 1.5 cm.

[0009] Additionally, it is preferable that a pair of the above-mentioned traction arms (200) include a bent portion (220) formed by bending at a predetermined angle.

[0010] Meanwhile, as a means of solving another problem to resolve the aforementioned conventional problems, the brain traction device according to the present invention comprises, in a first embodiment, a body (100), a pair of traction arms (200) which are provided symmetrically to each other, with one side of each being rotatably coupled to the body (100) and the other side having a blade (210) for opening the brain to a predetermined width, an expansion body (400) which is disposed between the pair of traction arms (200) and applies an external force so that the pair of traction arms (200) can open or close depending on whether or not they are supplied by an expansion inducer, and an injection pipe (410) which is connected to the expansion body (400) and provides a passage for the expansion inducer to enter and exit, wherein the expansion inducer is saline solution, and the body (100) is characterized by being equipped with an angle control pin (130) that controls the rotation angle of the pair of traction arms (200) that open by the expansion body (400). does.

[0011] Additionally, it is preferable that the expansion body (400) be formed so that both sides are connected to a pair of traction arms (200), and that the expansion width of one side be greater than the expansion width of the other side.

[0012] In addition, it is preferable that the expansion width of one side of the expansion body (400) be such that the distance between a pair of the traction arms (200) is 1 cm to 1.5 cm.

[0013] According to the present invention, while satisfying miniaturization distinct from conventional methods, the body can be fixed at a position desired by the operator, allowing for free change of the operator's position and enabling a reduction in the length of the traction arm. Furthermore, by improving the operator's field of vision, the effect of preventing safety accidents can be expected.

[0014] FIG. 1 is a drawing illustrating a conventional brain traction device.

[0015] FIG. 2 is a perspective view illustrating a brain traction device according to a first embodiment of the present invention.

[0016] Figure 3 is an operational relationship diagram for Figure 2.

[0017] FIG. 4 is a perspective view illustrating a brain traction device according to a second embodiment of the present invention.

[0018] Figures 5 and 6 are diagrams of the operational relationship for Figure 4.

[0019] Hereinafter, a brain traction device according to the present invention (hereinafter briefly referred to as the "traction device") will be described in detail with reference to the attached drawings.

[0020] Before the explanation, as illustrated in FIGS. 2 and FIGS. 4, the traction device according to the present invention can be implemented in a first embodiment (1) and a second embodiment (2). Note that the first embodiment (1) is a method in which a pair of traction arms (200) described later are spread apart by elastic force, whereas the second embodiment (2) is a method in which a pair of traction arms (200) can be spread apart by expansion force. To ensure this is clearly understood, each embodiment will be described below.

[0021] First, as illustrated in FIGS. 2 and FIGS. 3, the traction device according to the first embodiment (1) of the present invention mainly comprises a body (100), a traction arm (200), and an elastic body (300).

[0022] To explain in more detail, the body (100) is configured to provide an installation site where a pair of traction arms (200), which will be described later, can be installed on an elastic body (300) to spread apart or narrow, as described above, and at the same time to control the separation and spreading rotation angle of the traction arms (200).

[0023] As described above, the body (100) may include a lower body (110) that can be separated and assembled from each other and an upper body (120) formed in the shape of a cap, and a through hole (121) may be formed on the outer surface of the upper body (120) to allow a pair of traction arms (200) to be inserted through it so as to be exposed to the outside.

[0024] In addition, the separation assembly between the lower body (110) and the upper body (120) can be performed using a screw thread assembly method or a method of fitting together in a male and female form through protrusions and grooves.

[0025] As shown in the illustration, one side of each traction arm (200), which is composed of a pair, is rotatably axially coupled to the upper surface of the lower body (110), and the axially coupled pair of traction arms (200) satisfy a structure in which they are exposed to the outside through a through hole (121).

[0026] At this time, it is preferable that each traction arm (200), which is rotatably axially coupled to the upper surface of the lower body (110), is connected to have a structure that is separable from the lower body (110) so that maintenance of the traction arm (200) is possible.

[0027] In addition, a pair of angle control pins (130) are formed protruding from the upper surface of the lower body (110) to control the rotation angle of the traction arms (200) that spread out when the traction arms (200) are rotatably fixedly coupled to the lower body (110) and spread out by the elastic force of the elastic body (300) described later.

[0028] At this time, it is preferable that the distance between the pair of angle control pins (130) formed on the lower body (110) be formed such that the pair of traction arms (200) can be spread apart by the elastic force of the elastic body (300) to have a gap (D) of 1.0 cm to 1.5 cm.

[0029] Here, the numerical limit of the gap (D) for a pair of traction arms (200) means that it can be widened through a pair of traction arms (200) without causing damage to the brain.

[0030] Meanwhile, although not illustrated, the lower part of the body (100) may further include a fixing means (not illustrated) for fixing the traction device according to the present invention to a bed on which a patient is lying, and although not illustrated, the fixing means may use a conventional detachable fixing means such as a clamp shape or a clamp shape that is attached to and detached from the bed frame by tightening a bolt.

[0031] And, the above-described traction arm (200) includes a blade (210) configured to provide convenience for brain surgery through rotation, with a pair of blades installed symmetrically on the body (100) described above so as to be able to rotate by means of an elastic body (300) to be described later.

[0032] Each traction arm (200) may include a bent portion (220) formed at a predetermined angle so that, as described above, the operator can secure the desired gap (D) of the brain without excessive spreading of the elastic body (300), and during the process of spreading the brain, the pair of traction arms (200) can maintain parallelism with each other to secure the gap (D).

[0033] The blade (210) comes into direct contact with the brain, allowing the operator to secure the necessary field of view for brain surgery through the opening of the traction arm (200).

[0034] The blade (210) is made of tungsten or stainless steel and has undergone a heat treatment process to be harmless to the human body.

[0035] A pad made of cotton material (not shown) may be used on the outer surface of the blade (210) to prevent the blade (210) from detaching from the brain, which is smooth and brittle, during the process of the traction arm (200) opening or after it has opened.

[0036] Here, the additionally provided cotton pad may be additionally formed to come into contact with a regular pattern to prevent slipping on the surface of the blade (210) in addition to the cotton pad, because the thickness of the pad or lint protruding from the outside of the blade (210) may obstruct the operator's view.

[0037] Also, it should be noted that the above elastic body (300) is configured to exert an external force to cause the pair of traction arms (200) described above to spread apart (D), and that in the present invention, a leaf spring may be applied, but is not limited thereto.

[0038] As described above, the elastic body (300) is fixedly installed so that both sides are in contact with the mutually facing surfaces of the pair of traction arms (200) so that the pair of traction arms (200) can always be kept apart by the elastic force (D).

[0039] Meanwhile, the traction device according to the second embodiment (2) of the present invention, as shown in FIGS. 4 to 6, comprises a body (100), a pair of traction arms (200) equipped with blades (210), and an expansion body (400). Since the body (100) and the pair of traction arms (200) have the same configuration and structure as the first embodiment (1) described above, a detailed description is omitted so as not to obscure the gist of the second embodiment (2).

[0040] For example, the expansion body (400) is rotatably coupled to the body (100) and is installed between a pair of traction arms (200) whose rotation angle is controlled by an angle control pin (130) to apply an external force to cause the traction arms (200) to spread apart or contract.

[0041] To this end, the expansion body (400) has a structure connected to one side of an injection pipe (410) through which an expansion inducer moves, as described above, and an injection means (420) for injecting the expansion inducer is provided on the other side of the injection pipe (410).

[0042] Here, the expansion inducer uses saline solution to enable the expansion body (400) to perform the function of a hydraulically controlled actuator, and the injection means (420) may use a syringe or a pump capable of supplying and discharging saline solution.

[0043] Of course, in addition to saline solution, the expansion inducer in the present invention may use air to control the degree of expansion of the expansion body (400) according to the degree of air injection, but it is preferable to use saline solution that can be easily found in hospitals.

[0044] A mold can be formed on the surface so that the expansion volume can be freely applied differently depending on the supply amount of the expansion inducer of the expansion body (400), and through this, unlike the first embodiment (1) described above, it is possible to adjust the gap (D) through which a pair of traction arms (200) can spread within the limit of the angle control pin (130).

[0045] At this time, it is preferable that the expansion body (400) in the present invention expands so that the expansion width (H1) on one side facing the blade (210) after expansion is larger than the expansion width (H2) on the other side, so that a pair of traction arms (200) can be arranged parallel to each other when they form a maximum gap (D) until interference occurs by the angle control pin (130), thereby improving visibility of the surgical site after brain dilation.

[0046] As described above, the traction device according to the first embodiment (1) or the second embodiment (2) of the present invention is capable of miniaturizing in a manner distinct from conventional devices, while allowing the body (100) to be fixed at a position desired by the operator, thereby enabling the operator to freely change their position and reduce the length of the traction arm (200), and is expected to have the effect of preventing safety accidents by improving the operator's field of vision.

Claims

1. Body (100); A pair of traction arms (200) are provided symmetrically with respect to each other, each having one side rotatably coupled to the body (100), and each having a blade (210) on the other side for opening the brain to a predetermined width; and It includes an elastic body (300) positioned between a pair of traction arms (200) and applying an external force to cause the pair of traction arms (200) to spread apart by elastic force; A brain traction device characterized by the body (100) being provided with an angle control pin (130) for controlling the rotation angle of a pair of traction arms (200) that are spread apart by an elastic body (300).

2. In Paragraph 1, A brain traction device characterized in that the spacing between a pair of traction arms (200) spread by an elastic body (300) is 1 cm to 1.5 cm.

3. In Paragraph 1, A brain traction device characterized in that a pair of the above-mentioned traction arms (200) include a bent portion (220) formed by bending at a predetermined angle.

4. Body (100); A pair of traction arms (200) are provided symmetrically with each other, each having one side rotatably connected to the body (100) and each having a blade (210) on the other side for opening the brain to a predetermined width; An expansion body (400) positioned between a pair of traction arms (200) and applying an external force so that the pair of traction arms (200) can spread apart or narrow depending on whether or not they are supplied by an expansion inducer; and Including an injection pipe (410) connected to the above-mentioned expansion body (400) to provide a passage for the expansion inducer to enter and exit; The expansion agent is saline solution, and A brain traction device characterized in that the body (100) is equipped with an angle control pin (130) that controls the rotation angle of a pair of traction arms (200) that are spread apart by the expansion body (400).

5. In Paragraph 4, The above expansion body (400) A brain traction device characterized by having both sides formed to be connected to a pair of traction arms (200), wherein the expansion width of one side can be expanded more than the expansion width of the other side.

6. In Paragraph 5, A brain traction device characterized by the expansion width of one side of the expansion body (400) such that the distance between a pair of traction arms (200) is 1 cm to 1.5 cm.

Images