Headstock suitable for neurosurgery dissection training

Abstract

The utility model discloses a headstock suitable for neurosurgery dissection training, and relates to the technical field of neurosurgery operation training equipment, the headstock comprises a pedestal which is a square plate, and a cylindrical support arm is arranged above one side of the pedestal; the head nail system is used for fixing the skull, is mounted on the cylindrical supporting arm and is adjustable in angle; according to the scheme, through cooperation of the head nail system, the traction system and the universal joint, the head nail system fixes the head and keeps the stability of the head, the universal joint is used for adjusting the position of the head nail system, then the position of the head is adjusted, the angle can be conveniently adjusted according to needs during training, and therefore the training efficiency is improved. And the traction system retracts the skin at the surgical incision, so that the deeper position of the skull can be operated conveniently, and the simulation effect of operation training is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to neurosurgery operation training equipment technical field, specifically is the head frame suitable for neurosurgical anatomy training. BACKGROUND

[0002] In the field of neurosurgery, anatomy training plays a crucial role in cultivating professional neurosurgeons. Precise dissection operation training is a key link for neurosurgeons to master surgical skills and familiarize with brain structure.

[0003] Currently, the traditional anatomy training head frame system has many shortcomings. When performing delicate neurosurgical dissection operations, the instability of the head frame may cause the dissection instruments to deviate from the predetermined position, causing accidental damage to the surrounding tissues and affecting the training effect. On the other hand, due to the differences in dissection operations of different students, the head frame needs to be flexibly adjusted in multiple dimensions to adapt to different dissection operation angles and positions. However, the traditional head frame system has limited adjustment function and can only be adjusted simply up and down or left and right, which is difficult to meet the complex requirements of neurosurgical dissection training.

[0004] Therefore, it is necessary to provide a head frame suitable for neurosurgical dissection training. Through the cooperation between the head nail system, the traction system and the universal joint, the angle can be adjusted at will during training. UTILITY MODEL CONTENT

[0005] The utility model aims at the deficiencies of the prior art and provides a head frame suitable for neurosurgical dissection training.

[0006] The head frame suitable for neurosurgical dissection training comprises:

[0007] The base is a square plate, and a cylindrical support arm is arranged on one side of the base;

[0008] The head nail system for fixing the skull is installed on the cylindrical support arm and can adjust the angle;

[0009] The retraction system for retracting the skin at the surgical incision.

[0010] Further, at least one ball joint is installed on the cylindrical support arm, and the other side of the base is clamped with a round rod through quick-change clamps; the upper part of the round rod is clamped with a U-shaped connecting fork through quick-change clamps;

[0011] The head nail system is installed on the cylindrical support arm through the ball joint and can adjust the angle;

[0012] The retraction system comprises a head ring, and the head ring is fixed on the U-shaped connecting fork through bolts.

[0013] Further, the head nail system adopts a three-nail head nail system.

[0014] Further, the head ring comprises four circular arc segments enclosing a circle, and adjacent two circular arc segments are hingedly connected to each other.

[0015] Further, the head ring is sleeved with a plurality of elastic band hooks, the elastic band hooks are sleeved on the circular arc segments, and the elastic band hooks are stretched to the surgical opening position to pull open the skin.

[0016] Further, the head ring is sleeved with a snake-shaped retractor, the snake-shaped retractor comprises a snake-shaped arm, a clamping seat and a hook, the hook is fixed to the front segment of the snake-shaped arm, the snake-shaped retractor is clamped on the circular arc segment through the clamping seat and is fixed through a jackscrew.

[0017] Further, the head nail system is installed on the cylindrical support arm and can adjust the angle;

[0018] The retraction system comprises a head ring retraction frame, and the head ring retraction frame is connected with the head nail system to form an integral structure.

[0019] Further, at least one ball joint is installed on the cylindrical support arm, and the other side of the base is clamped with a round rod through a quick-change clamp;

[0020] The head nail system is installed on the cylindrical support arm through the ball joint and can adjust the angle;

[0021] The retraction system comprises a support arm retraction frame, one end of the support arm retraction frame is clamped to the round rod through a quick-change clamp, and the other end of the support arm retraction frame extends above the skull to pull the skin at the surgical opening.

[0022] Further, the support arm retraction frame comprises an integrally formed arc-shaped frame rod and a straight rod, and the straight rod of the support arm retraction frame is clamped to the upper part of the round rod through a quick-change clamp;

[0023] The ball joint comprises a ball link, a lock nut, a special-shaped connecting block and a fastening screw, one end of the ball link is a circular rod body, the front segment of which is connected with a ball, and the other end of the ball link is a special-shaped plate, the front segment of which is connected with a circular ring;

[0024] The ball, the circular rod body, the special-shaped plate and the circular ring are integrally cast;

[0025] The special-shaped connecting block is integrally cast by a threaded pipe and a special-shaped block provided with a screw hole;

[0026] The ball of the ball link is inserted into the threaded pipe of the special-shaped connecting block and is locked and fixed through the lock nut, symmetrically arranged half-circle buckles are installed on the cylindrical support arm, and the fastening screw is inserted into the half-circle buckles after passing through the screw hole of the special-shaped block and is tightened;

[0027] Comprise:

[0028] The head support is internally provided with a through slot, and a movable head nail for fixing the head is arranged in the through slot, the movable head nail comprises two arc-shaped supports, a plurality of fixing holes are equidistantly arranged at positions of the arc-shaped supports in the through slot, a single nail is mounted on one of the arc-shaped supports, and a double nail is mounted on the other arc-shaped support.

[0029] The number of unlocking devices is equal to that of the arc-shaped supports, and a threaded hole is arranged in each unlocking device at a position close to an end surface of the movable head nail, each unlocking device is composed of a positioning pin rod with a brake ring, a hollow nut and a spring.

[0030] Compared with the prior art, the head support has the following advantages:

[0031] 1. The head nail system, the pulling system and the universal joint are matched, the head nail system fixes the head and maintains the stability of the head, the universal joint is used for adjusting the position of the head nail system, thereby adjusting the position of the head, the angle can be adjusted as required during training, the pulling system pulls away the skin at the surgical opening, the surgery on the deeper position of the skull is facilitated, and the simulation effect of the surgical training is improved.

[0032] 2. The head ring is arranged, a plurality of arc segments in the head ring are hinged, the angle of each arc segment can be adjusted according to the requirement in the surgical process, thereby the positions of the rubber band drag hook and the snake-shaped retractor mounted on the head ring are adjusted, the convenience in the surgical process is greatly improved, and the simulation effect in the training process is also improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 A structure schematic view of the head frame suitable for neurosurgical dissection training according to the first embodiment of the present scheme is shown;

[0034] Figure 2 A structure schematic view of the ball head universal joint is shown;

[0035] Figure 3 A structure schematic view of the head frame suitable for neurosurgical dissection training according to the second embodiment of the present scheme is shown;

[0036] Figure 4 A structure schematic view of the head frame suitable for neurosurgical dissection training according to the third embodiment of the present scheme is shown;

[0037] Figure 5 A whole structure schematic view of the head frame suitable for neurosurgical dissection training according to the fourth embodiment of the present scheme is shown;

[0038] Figure 6 A structure schematic view of the unlocking device according to the fourth embodiment of the present scheme is shown.

[0039] Figure 7 The structure diagram of the movable head nail and the unlocking device cooperating with the embodiment four of the present application.

[0040] Reference signs: 1, base; 2, cylindrical support arm; 3, ball joint; 4, round rod; 5, U-shaped connecting fork; 6, head nail system; 7, retractor system; 8, head ring retractor frame; 9, support arm retractor frame; 10, head support; 11, movable head nail; 12, unlocking device;

[0041] 31, ball joint connecting rod; 32, lock nut; 33, special-shaped connecting block; 34, fastening screw;

[0042] 311, round rod body; 312, ball; 313, special-shaped plate; 314, circular ring;

[0043] 331, threaded pipe; 332, special-shaped block;

[0044] 61, three-nail head nail system; 62, four-nail head nail system;

[0045] 71, head ring; 72, rubber band retractor; 73, snake-shaped retractor;

[0046] 711, circular arc segment;

[0047] 91, arc-shaped frame rod; 92, straight rod;

[0048] 111, arc-shaped support; 112, fixing hole; 113, single nail; 114, double nail;

[0049] 121, positioning pin rod; 122, hollow nut; 123, spring. DETAILED DESCRIPTION

[0050] Embodiment 1

[0051] The present embodiment provides a head frame suitable for neurosurgery dissection training, as shown in the accompanying drawings, comprising: Figures 1-2 As shown in the accompanying drawings, comprising:

[0052] The base 1 is a square plate, a cylindrical support arm 2 is arranged on one side of the base 1, at least one ball joint 3 is installed on the cylindrical support arm 2, and a round rod 4 is clamped on the other side of the base 1 through a quick-change clamp, and the upper part of the round rod 4 is clamped through a quick-change clamp U-shaped connecting fork 5;

[0053] The head nail system 6 is installed on the cylindrical support arm 2 through the ball joint 3, and the angle can be adjusted. In training, the structure of the ball joint 3 can be used to stabilize the incision and adjust the angle of the patient's brain at will, which is convenient for training of brain surgery;

[0054] The retraction system 7 comprises a head ring 71 fixed to the U-shaped connecting fork 5 by bolts, and a pulling structure is arranged on the head ring 71, which is convenient for pulling the skin at the surgical field during training to improve the simulation effect of the training operation.

[0055] Please refer to the drawings in the specification Figure 1 In the embodiment, the head nail system 6 adopts a three-nail head nail system 61 for fixing the skull model during the training process to improve the simulation effect. The three-nail head nail system 61 can refer to the three-nail head nail fixing frame in the patent with the patent application number CN201920203339.X and US10687857, or use the three-nail type cranial brain visible operation head frame fixing frame produced by Huaxi Company, etc. This is prior art, so it will not be described in detail here.

[0056] Please refer to the drawings in the specification Figure 1 The head ring 71 in the embodiment will be described in detail: the head ring 71 comprises four circular arc segments 711, which are arranged to form a circular head ring 71, and adjacent two circular arc segments 711 are hingedly connected. During the training process, the position of each circular arc segment 711 can be adjusted to adapt to different practical situations.

[0057] Since the four circular arc segments 711 are hingedly connected, the rotation of each circular arc segment 711 does not affect the stability of the overall structure. For example, the rotation of one of the circular arc segments 711 does not affect the other three circular arc segments 711. Therefore, the angle can be adjusted during training, which greatly improves the simulation operation effect during the training process.

[0058] The head ring 71 is also provided with a plurality of rubber band hooks 72, which are sleeved on the circular arc segments 711. The rubber band hooks 72 are stretched to the surgical site to pull open the skin, so as to facilitate the operation. The number of rubber band hooks 72 can be determined according to the actual needs during the operation process, which is not limited in the embodiment.

[0059] In addition, the head ring 71 is also provided with a snake-shaped retractor 73. The snake-shaped arm and base 1 part of the snake-shaped retractor 73 can refer to the nerve surgery snake-shaped mirror holding arm disclosed in the prior application of the applicant (application number 202010063415.9). This is prior art, and a hook is installed on the front segment of the snake-shaped arm for pulling the skin at the surgical field. The snake-shaped retractor 73 is clamped on the circular arc segment 711 by a clamping seat and fixed by a jackscrew. The snake-shaped arm part can be adjusted in position during the training process, so as to facilitate the adjustment of the hook part of the front segment to cooperate with the operation training process.

[0060] It is worth mentioning that according to the needs of the operation process, the rubber band hooks 72 and the snake-shaped retractor 73 can be used alone or combined on the head ring 71, which is not limited in this application.

[0061] Please refer to the drawings of the specification Figure 2 The ball joint 3 in the embodiment is described in detail as follows: the ball joint 3 comprises a ball link 31, a lock nut 32, a special-shaped connecting block 33, and a fastening screw 34. The ball link 31 has a circular rod body 311 at one end, a front connecting ball 312, a long strip-shaped special-shaped plate 313 at the other end, and a front connecting circular ring 314. The ball 312, the circular rod body 311, the special-shaped plate 313, and the circular ring 314 are integrally cast. The special-shaped connecting block 33 is integrally cast by a threaded pipe 331 and a special-shaped block 332 provided with a screw hole.

[0062] The ball 312 of the ball link 31 is inserted into the interior of the threaded pipe 331 of the special-shaped connecting block 33 and is locked and fixed by the lock nut 32. The fastening screw 34 is inserted into the screw hole of the special-shaped block 332. The cylindrical support arm 2 is provided with symmetrically arranged semicircular buckles. The fastening screw 34 is inserted into the semicircular buckles after passing through the screw hole of the special-shaped block 332, so as to fix the ball joint 3 to the cylindrical support arm 2.

[0063] After the three-pin nail system 61 is installed to the cylindrical support arm 2 by the ball joint 3, the angle of the three-pin nail system 61 can be adjusted according to the needs of the surgical process, the angle of the skull is further adjusted, and the adjusted skull is still stable, so that the simulation effect of the training is greatly improved.

[0064] Embodiment 2

[0065] The embodiment provides a head frame suitable for neurosurgery dissection training, as shown in the drawings of the specification Figure 3 and comprises:

[0066] The base 1 is a square plate. The cylindrical support arm 2 is arranged on one side of the base 1.

[0067] The head nail system 6 is installed on the cylindrical support arm 2 and can adjust the angle, and is used for supporting and fixing the skull.

[0068] The retraction system 7 comprises a head ring retraction frame 8. The head ring retraction frame 8 is connected with the head nail system 6 to form an integral structure.

[0069] Continuing to refer to the drawings of the specification Figure 3 In the embodiment, the head nail system 6 adopts a four-pin nail system 62. The I-type craniocerebral operation head frame four top produced by Changzheng Medical Company can be referred to. This is prior art, and thus is not described in detail here.

[0070] Continuing to refer to the drawings of the specification Figure 3The circular frame portion of the head ring retractor 8 can be used to install the serpentine retractor 73. The structure of the serpentine retractor 73 is described in Example 1 and will not be elaborated further here. The transition frame portion of the head ring retractor 8 can also be used to install the elastic band hook 72, thereby achieving the function of fixing the skull while also installing the traction structure, which greatly improves the simulation surgery effect of anatomical training.

[0071] Example 3

[0072] This embodiment provides a head frame suitable for neurosurgical anatomy training, as shown in the instruction manual. Figure 4 As shown, it includes:

[0073] The base 1 is a square plate. A cylindrical support arm 2 is set on the upper side of one side of the base 1. At least one ball joint 3 is installed on the cylindrical support arm 2. A round rod 4 is clamped on the other side of the base 1 through a quick-change clamp.

[0074] The head pin system 6 is mounted on the cylindrical support arm 2 via a ball joint 3, and its angle is adjustable for fixing the skull.

[0075] The retraction system 7 includes a retraction arm 9. One end of the retraction arm 9 is clamped to the round rod 4 via a quick-change clip, and the other end of the retraction arm 9 extends to the top of the skull to facilitate the retraction of the skin at the wound site to adapt to the surgery.

[0076] Please refer to the instruction manual attached. Figure 4 In this embodiment, the head nail system 6 adopts a three-nail head nail system 61, which can refer to the three-nail head nail fixation frame in the patent application numbers CN201920203339.X and US10687857, or the three-nail craniotomy head frame fixation frame produced by Huaxier, etc. This is prior art, so it will not be described in detail here. The head nail system 6 is connected to the ball joint 31 in the ball joint 3. Specifically, it is connected to the long strip-shaped plate 313 in the ball joint 31, so that the three-nail head nail system 61 is installed through the cylindrical support arm 2 to facilitate clamping the skull.

[0077] Please refer to the instruction manual attached. Figure 4 The following is a detailed description of the arm retraction frame 9 in this embodiment: The arm retraction frame 9 includes an integrally formed arc-shaped frame rod 91 and a straight rod 92. The end of the straight rod 92 of the arm retraction frame 9 is clamped to the upper part of the round rod 4 through a quick-change clamp. According to the needs of the surgical procedure, the upper part of the arc-shaped frame rod 91 can be used to install a serpentine retractor 73 and a rubber band hook 72, etc., which are not shown in the figure, but can be easily imagined.

[0078] Example 4

[0079] This embodiment provides a head frame suitable for neurosurgical anatomy training, as shown in the instruction manual. Figures 5-7 As shown, it includes:

[0080] The headrest 10 is internally provided with a through slot, and a movable head nail 11 for fixing the head is arranged in the through slot, the movable head nail 11 comprises two arc-shaped supports 111, a plurality of fixing holes 112 are equidistantly arranged at positions of the arc-shaped supports 111 in the through slot, a single nail 113 is arranged on one of the arc-shaped supports 111, and a double nail 114 is arranged on the other arc-shaped support 111, a patient places the head above the headrest, and the positions of the two arc-shaped supports 111 are adjusted, so that the single nail and the double nail are fixed to the head from two directions of the head respectively;

[0081] An unlocking device 12 is arranged at a position of an end surface of the headrest 10 close to the movable head nail 11, and a plurality of threaded holes are arranged in the unlocking device 12, each of the unlocking devices 12 is composed of a positioning pin rod 121 with a brake ring, a hollow nut 122 and a spring 123;

[0082] The inside of the hollow nut 122 is provided with a thread, and the brake ring is threadedly connected with the thread, the brake ring can move on the positioning pin rod 121, the front end of the positioning pin rod 121 with the brake ring is sleeved with the spring and then inserted into the threaded hole and further embedded into the fixing hole, the unlocking device 12 can refer to the existing threaded positioning pin, which is the prior art, and thus will not be described in detail here;

[0083] At this time, the spring is located between the hollow nut and the arc-shaped support 111, the hollow nut 122 is threadedly connected with the threaded hole, the positioning pin rod 121 is rotated while driving the hollow nut to threadedly connect with the threaded hole, at this time, the front end of the positioning pin rod 121 moves into the fixing hole, so as to limit and fix the arc-shaped support 111, at the same time, the spring is pressed, and the position of the positioning pin rod 121 is also fixed under the action of the threaded connection, so as to realize the effect of overall fixation;

[0084] When the movable head nail 11 needs to be adjusted, the positioning pin rod 121 is only needed to be reversely rotated, so as to be quickly withdrawn under the action of the spring, so as to adjust the arc-shaped support 111, so that different fixing holes are aligned with the threaded holes, so as to realize the adjustment of the movable head nail 11.

[0085] In the description of the utility model, it needs to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is the orientation or positional relation based on the orientation or positional relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the features limited as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0086] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0087] In the description of the utility model, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0088] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A head frame suitable for neurosurgical anatomy training, characterized in that, include: The base (1) is a square plate, and a cylindrical support arm (2) is provided on the upper side of one side of the base (1); A head pin system (6) for fixing the skull is mounted on a cylindrical support arm (2) and is angle-adjustable; A retraction system used to retract the skin at the surgical site (7).

2. The head frame for neurosurgical anatomy training according to claim 1, characterized in that: At least one ball joint (3) is installed on the cylindrical support arm (2), and a round rod (4) is clamped on the other side of the base (1) by a quick-change clamp. The upper part of the round rod (4) is clamped with a U-shaped connecting fork (5) by a quick-change clamp. The head pin system (6) is mounted on the cylindrical support arm (2) via a ball joint (3) and the angle is adjustable; The towing system (7) includes a head ring (71), which is fixed to the U-shaped connecting fork (5) by bolts.

3. The head frame for neurosurgical anatomy training according to claim 2, characterized in that: The headpin system (6) adopts a three-headpin system (61).

4. The head frame for neurosurgical anatomy training according to claim 2, characterized in that: The headband (71) comprises four arc segments (711) that form a circle, with adjacent arc segments (711) hinged to each other.

5. The head frame for neurosurgical anatomy training according to claim 4, characterized in that: The headband (71) is equipped with several elastic band hooks (72), which are fitted on the arc segment (711). The elastic band hooks (72) are stretched to the surgical site to pull the skin open.

6. The head frame for neurosurgical anatomy training according to claim 4, characterized in that: The headband (71) is fitted with a serpentine retractor (73), which includes a serpentine arm, a retainer and a hook. The hook is fixed to the front section of the serpentine arm, and the serpentine retractor (73) is mounted on the arc section (711) by the retainer and fixed by the set screw.

7. The head frame for neurosurgical anatomy training according to claim 1, characterized in that: The traction system (7) includes a head ring traction frame (8), which is connected to the head pin system (6) to form an integral structure.

8. The head frame for neurosurgical anatomy training according to claim 1, characterized in that: At least one ball joint (3) is installed on the cylindrical support arm (2), and the round rod (4) is clamped on the other side of the base (1) by a quick-change clamp; The head pin system (6) is mounted on the cylindrical support arm (2) via a ball joint (3) and the angle is adjustable; The retraction system (7) includes a retraction arm (9), one end of which is clamped to a round rod (4) via a quick-change clip, and the other end of which extends to the top of the skull to pull the skin at the surgical site. The arm retraction frame (9) includes an integrally formed arc-shaped frame rod (91) and a straight rod (92). The straight rod (92) of the arm retraction frame (9) is clamped to the upper part of the round rod (4) by a quick-change clamp.

9. The head frame for neurosurgical anatomy training according to any one of claims 2 or 8, characterized in that: The ball joint (3) includes a ball joint link (31), a lock nut (32), a special-shaped connecting block (33), and a fastening screw (34). One end of the ball joint link (31) is a circular rod (311) connected to a ball (312). The other end of the ball joint link (31) is a long strip-shaped plate (313) connected to a ring (314). The sphere (312), the circular rod (311), the irregular plate (313), and the ring (314) are integrally cast; The irregular connecting block (33) is integrally cast from a threaded tube (331) and an irregular block (332) with screw holes; The ball (312) of the ball joint (31) is inserted into the threaded tube (331) of the irregular connecting block (33) and locked and fixed by the lock nut (32). Symmetrically arranged semi-circular buckles are installed on the cylindrical support arm (2). The fastening screw (34) passes through the screw hole of the irregular block (332) and is inserted into the semi-circular buckle for tightening.

10. A head frame suitable for neurosurgical anatomy training, characterized in that: include: The headrest (10) has a through groove on one side, and a movable head nail (11) for fixing the head is provided inside the through groove. The movable head nail (11) includes two arc-shaped brackets (111). Several fixing holes (112) are opened at equal intervals at the position of the arc-shaped brackets (111) inside the through groove. A single nail (113) is installed on one arc-shaped bracket (111), and a double nail (114) is installed on the other arc-shaped bracket (111). The unlocking devices (12) are equal in number to the arc-shaped brackets (111). The head support (10) has a number of threaded holes equal to the number of the unlocking devices (12) at the end face position near the movable head pin (11). Each unlocking device (12) consists of a positioning pin (121) with a brake ring, a hollow nut (122) and a spring (123).

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