Drilling guide device for craniocerebral operation

Abstract

The utility model discloses a drilling guide device for a craniocerebral operation, and belongs to the technical field of medical auxiliary instruments. The device comprises a main body shell, a lifting adjusting mechanism is arranged in the main body shell, sliding openings are formed in the side walls of the two sides of the main body shell correspondingly, the two ends of the lifting adjusting mechanism penetrate through the two sliding openings correspondingly and are fixedly connected with a first clamping mechanism, and an upper guide hole plate is fixedly clamped to the first clamping mechanism; the lower portions of the two sides of the main body shell are fixedly connected with two symmetrically-arranged fixing frames, the front ends of the two fixing frames are fixedly connected with a second clamping mechanism, and a lower guide hole plate is fixedly arranged on the second clamping mechanism. According to the craniocerebral operation drilling depth adjusting device, by arranging the lifting adjusting mechanism and the locking mechanism, the distance between the upper guide hole plate and the lower guide hole plate can be accurately positioned and adjusted, the accuracy of craniocerebral operation drilling depth adjusting is guaranteed, and by arranging the first clamping mechanism and the second clamping mechanism, the upper guide hole plate and the lower guide hole plate can be conveniently replaced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical auxiliary instrument, more specifically, relate to a drilling guiding device for craniocerebral operation. BACKGROUND

[0002] Craniotomy is also called craniotomy surgery, which is generally performed on patients with craniocerebral injury or removal of brain tumor, etc. in clinical practice. In craniotomy surgery, a U-shaped incision is made on the scalp of the patient's affected area, and then several holes are drilled on the skull. After the corresponding skull is removed, medical operations are performed and the skull is sutured. Minimally invasive treatment of cerebral hemorrhage, ventricular puncture drainage, brain tissue biopsy and other surgeries are widely used in the current medical field. These examinations and treatments require the assistance of craniocerebral drilling. The drilling point before drilling through the skull is generally determined under CT or by converting CT film to the patient's head.

[0003] In the prior art, a drilling guide for craniocerebral surgery is disclosed, which includes a base having a boss and a guide groove parallel to each other on the base. A first sliding bracket is provided on the boss and can slide along the boss. A first compression knob is threadedly connected to the first sliding bracket and points to the boss. A short guide sleeve is fixed to the side of the first sliding bracket away from the boss. A slide rod is provided in the guide groove and can slide along the guide groove. A second compression knob is threadedly connected to the base and points to the slide rod. A second sliding bracket is formed by the outward extension of the slide rod away from the guide groove. A long guide sleeve is fixed to the second sliding bracket. The positions of the short guide sleeve and the long guide sleeve correspond to each other. This technical solution improves the accuracy of surgical positioning and drilling depth, and increases the safety of surgery. However, the device is not accurate and stable in adjusting and positioning the drilling depth, which affects the drilling depth accuracy. Moreover, the replacement operation of the guide sleeve is cumbersome and not convenient to use. SUMMARY

[0004] The utility model discloses a drilling guiding device for craniocerebral operation in view of the technical problems existing in the prior art.

[0005] To solve the above technical problems, the utility model discloses a main body shell, is equipped with the lifting adjusting mechanism in the main body shell, the both sides lateral wall of main body shell all are equipped with the sliding mouth, and the both ends of lifting adjusting mechanism respectively pass through two sliding mouths and fixedly connected with first clamping mechanism, and the first clamping mechanism is clamped and fixed with the upper guide hole plate, and the both sides lower part of main body shell is fixedly connected with two symmetrical fixed frame, and the front end of two fixed frame is fixedly connected with second clamping mechanism, and the second clamping mechanism is fixed with lower guide hole plate, and lower guide hole plate is located in the right below of upper guide hole plate.

[0006] The lifting adjusting mechanism is inserted in the upper side wall of the main body shell and connected with the locking mechanism, the lower end of the locking mechanism is fixedly connected with a threaded rod, the threaded rod is threadedly connected with a nut block, the two sides of the nut block are fixedly connected with two symmetrical connecting rods, and the two connecting rods pass through two sliding openings and are fixedly connected with the first clamping mechanism.

[0007] Preferably, the locking mechanism comprises a cylindrical shell inserted in the upper side wall of the main body shell and rotatably connected therewith, the upper end of the cylindrical shell is inserted and slidably connected with a hand pressing handle, the lower end of the hand pressing handle is fixedly connected with a sliding plate, a return spring is fixedly connected between the sliding plate and the inner bottom wall of the cylindrical shell, the lower sides of the two ends of the sliding plate are fixedly connected with two symmetrical lock rods, the two sides of the cylindrical shell are both provided with a slot, the two lock rods are respectively arranged through the two slots, and the inner top wall of the main body shell is provided with lock grooves arranged at equal intervals and surrounding the cylindrical shell as a center, and the two lock rods are respectively inserted into the corresponding two lock grooves.

[0008] Preferably, the inner wall of the cylindrical shell is slidably connected with the outer side wall of the sliding plate.

[0009] Preferably, the first clamping mechanism and the second clamping mechanism are of the same structure, the first clamping mechanism comprises a rectangular strip shell, one end of the rectangular strip shell is inserted and rotatably connected with a hand wheel rod, the inner end of the hand wheel rod is fixedly connected with a bidirectional screw rod, two symmetrical threaded blocks are threadedly connected on the bidirectional screw rod, the front side walls of the two threaded blocks are both fixedly connected with a link rod, an opening is formed in the front side wall of the rectangular strip shell, and the front ends of the two link rods are both fixedly connected with two symmetrical arc-shaped clamping plates.

[0010] Preferably, one end of the rectangular strip shell located on the outer side of the hand wheel rod is fixedly connected with a bump ring.

[0011] Preferably, the rear side wall of the second clamping mechanism is fixedly connected with a fixed plate, the upper side wall of the fixed plate is fixedly connected with a limiting rod, the rear side wall of the first clamping mechanism is fixedly connected with a limiting sleeve, and the limiting sleeve is sleeved on the limiting rod.

[0012] Preferably, the lower end of the main body shell is fixedly connected with a supporting pad.

[0013] Preferably, the rear side wall of the main body shell is fixedly connected with a hand holding frame.

[0014] Preferably, the front side wall of the main body shell is fixedly connected with a scale.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model discloses a kind of drilling guiding devices for craniocerebral operation, by setting lifting adjusting mechanism, rotating threaded rod, at this time, nut block forced displacement, drive the first clamping mechanism fixed with connecting rod displacement, realize the spacing adjustment of upper guiding hole plate and lower guiding hole plate, to change drilling depth, and the depth of drilling can be accurately calculated, operation is more convenient.Moreover, the utility model is by setting first clamping mechanism and second clamping mechanism, rotating hand wheel rod, drive bidirectional screw rod rotation, at this time, two threaded blocks are forced to displace in the direction of far, drive two arc clamps to displace and lose the clamping force of upper guiding hole plate, on the contrary, then clamping fixed, disassembly and replacement are more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of the utility model embodiment;

[0019] Figure 2 is a schematic diagram of the front view cross-sectional structure at the main body shell of the utility model;

[0020] Figure 3 is a schematic diagram of the Figure 2 enlarged structure at A of the utility model;

[0021] Figure 4 is a schematic diagram of the cross-sectional structure at the rectangular strip shell of the utility model.

[0022] Explanation of symbol marks in the drawing:

[0023] 1, main body shell; 2, sliding port; 3, upper guiding hole plate; 4, fixed frame; 5, lower guiding hole plate; 6, threaded rod; 7, nut block; 8, connecting rod; 9, cylindrical shell; 10, hand pressure handle; 11, sliding plate; 12, return spring; 13, lock rod; 14, notch; 15, lock groove; 16, rectangular strip shell; 17, hand wheel rod; 18, bidirectional screw rod; 19, threaded block; 20, link rod; 21, opening; 22, arc clamp; 23, anti-collision ring; 24, fixed plate; 25, limiting rod; 26, limiting sleeve; 27, supporting pad; 28, hand holding frame; 29, scale. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical schemes and beneficial effects to be solved in the present application clearer, the present application will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0025] Please refer to Figure 1 、 Figure 2 The utility model discloses a kind of drilling guiding devices for brain surgery, it includes main body shell 1, lifting adjusting mechanism is equipped in main body shell 1, both sides side wall of main body shell 1 are all set with sliding mouth 2, two ends of lifting adjusting mechanism respectively pass through two sliding mouths 2 and are fixedly connected with first clamping mechanism, first clamping mechanism is clamped and fixed with upper guiding hole plate 3, the lower part of main body shell 1 is fixedly connected with two symmetrical fixed frame 4, the front end of two fixed frame 4 is fixedly connected with second clamping mechanism, second clamping mechanism is held and fixed with lower guiding hole plate 5, lower guiding hole plate 5 is located in the directly below of upper guiding hole plate 3, drill bit first pass through upper guiding hole plate 3 then pass through lower guiding hole plate 5, guiding is more stable.

[0026] Lifting adjusting mechanism is inserted in the locking mechanism of main body shell 1 upper side wall and is rotationally connected with it, the lower end of locking mechanism is fixedly connected with threaded rod 6, threaded rod 6 is threadedly connected with nut block 7, two symmetrical connecting rods 8 are fixedly connected on the both sides of nut block 7, two connecting rods 8 respectively pass through two sliding mouths 2 and are fixedly connected with first clamping mechanism.

[0027] The embodiment is simple in structure, efficient in operation, when drilling depth needs to be adjusted, rotating threaded rod 6, since threaded rod 6 is threadedly connected with nut block 7, at this time, nut block 7 is forced to displace, drives first clamping mechanism fixed with connecting rod 8 to displace, realizes the interval adjustment of upper guiding hole plate 3 and lower guiding hole plate 5, to change drilling depth, and the depth of drilling can be accurately calculated, operation is more convenient, and the working principle is same with the background technology mentioned document.

[0028] Specifically, as shown in Figure 3 Locking mechanism includes cylinder shell 9 inserted in the upper side wall of main body shell 1 and rotationally connected with it, hand pressure handle 10 is inserted and slidably connected with the upper end of cylinder shell 9, the lower end of hand pressure handle 10 is fixedly connected with sliding plate 11, reset spring 12 is fixedly connected between sliding plate 11 and the inner bottom wall of cylinder shell 9, two symmetrical lock rods 13 are fixedly connected on the both ends of the lower side of sliding plate 11, slot 14 is formed on the both sides of cylinder shell 9, two lock rods 13 are respectively arranged through two slots 14, lock slot 15 is formed on the inner top wall of main body shell 1 with cylinder shell 9 as center, two lock rods 13 are respectively inserted in corresponding two lock slots 15.

[0029] The utility model discloses a locking mechanism is set up, when needing rotating screw rod 6, first press hand pressure handle 10 and push slide plate 11 to go down in cylinder shell 9, reset spring 12 is extruded and contracts and produces the elastic force at this moment, until with lock slot 15 separation after lock rod 13 goes down, at this moment, keep pressing and rotate hand pressure handle 10, can drive cylinder shell 9 rotation, further drive screw rod 6 rotation, conversely, when releasing hand pressure handle 10, utilize the elastic force of reset spring 12, push lock rod 13 and insert into lock slot 15 in the automaticity of the lock rod 13, the rotation of cylinder shell 9 is locked, can prevent screw rod 6 rotation, make the positioning of upper guide hole plate 3 accurate and stable, guarantee the accuracy of the depth adjustment of craniocerebral operation drilling.

[0030] In the embodiment, as shown in Figure 3 The inner wall of the cylinder shell 9 is slidably connected with the outer side wall of the slide plate 11, so that the displacement of the slide plate 11 is more stable.

[0031] Further, as shown in Figure 1 、 Figure 4 The first clamping mechanism and the second clamping mechanism are of the same structure. The first clamping mechanism comprises a rectangular strip shell 16, one end of the rectangular strip shell 16 is rotatably connected with a hand wheel rod 17, the inner end of the hand wheel rod 17 is fixedly connected with a bidirectional screw rod 18, two symmetrically arranged screw blocks 19 are threadedly connected on the bidirectional screw rod 18, the front side wall of each of the two screw blocks 19 is fixedly connected with a connecting rod 20, an opening 21 is formed in the front side wall of the rectangular strip shell 16, the front ends of the two connecting rods 20 penetrate through the opening 21 and are fixedly connected with two symmetrically arranged arc-shaped clamping plates 22. When it is necessary to replace the upper guide hole plate 3 or the lower guide hole plate 5, the hand wheel rod 17 is rotated to drive the bidirectional screw rod 18 to rotate. Since the bidirectional screw rod 18 is threadedly connected with the two screw blocks 19, at this moment, the two screw blocks 19 are forced to displace in the direction away from each other, so as to drive the two arc-shaped clamping plates 22 to displace and lose the clamping force on the upper guide hole plate 3. Conversely, the upper guide hole plate 3 is clamped and fixed. It is more convenient to disassemble and replace, so as to replace the upper guide hole plate 3 or the lower guide hole plate 5 with different hole diameters according to the diameter of the drill bit, and improve the accuracy of drilling positioning and guiding.

[0032] In the embodiment, as shown in Figure 4 One end of the outer side of the rectangular strip shell 16 is fixedly connected with a bump ring 23, which prevents accidental contact with the hand wheel rod 17.

[0033] As shown in Figure 1 The rear side wall of the second clamping mechanism is fixedly connected with a fixed plate 24, which is installed on the rectangular strip shell 16. The upper side wall of the fixed plate 24 is fixedly connected with a limiting rod 25. The rear side wall of the first clamping mechanism is fixedly connected with a limiting sleeve 26, which is sleeved on the limiting rod 25. When the rectangular strip shell 16 above is displaced up and down, the limiting sleeve 26 is driven to slide on the limiting rod 25, so that the guide hole plate 3 is kept to displace straight up and straight down.

[0034] As Figure 1 shown in the embodiment, the lower end of the main body shell 1 is fixedly connected with a support pad 27, which can be attached to the patient's head for support; the rear wall of the main body shell 1 is fixedly connected with a hand support 28, which is convenient for hand holding.

[0035] Further, the front wall of the main body shell 1 is fixedly connected with a scale 29, which is convenient for measuring the distance between the upper guide hole plate 3 and the lower guide hole plate 5 and calculating the drill bit depth.

[0036] The working principle of the utility model is as follows:

[0037] When the drill hole depth needs to be adjusted, the threaded rod 6 is rotated, since the threaded rod 6 is threadedly connected with the nut block 7, at this time, the nut block 7 is forced to displace, driving the first clamping mechanism fixed with the connecting rod 8 to displace, so that the distance between the upper guide hole plate 3 and the lower guide hole plate 5 is adjusted, thereby changing the drill hole depth, and the drill hole depth can be accurately calculated, and the operation is more convenient; when the threaded rod 6 needs to be rotated, the hand pressure handle 10 is first pressed to push the sliding plate 11 to move downward in the cylindrical shell 9, at this time, the reset spring 12 is extruded and shrinks to generate elastic force, until the lock rod 13 is moved downward and separated from the lock groove 15, at this time, the hand pressure handle 10 is kept pressed and rotated, which can drive the cylindrical shell 9 to rotate, and in turn drive the threaded rod 6 to rotate, conversely, when the hand pressure handle 10 is released, the reset spring 12 is used to push the lock rod 13 to automatically insert into the lock groove 15 to lock the rotation of the cylindrical shell 9, which can prevent the threaded rod 6 from rotating, so that the positioning of the upper guide hole plate 3 is accurate and stable, and the accuracy of the drill hole depth adjustment for the craniocerebral operation is ensured.

[0038] When the upper guide hole plate 3 or the lower guide hole plate 5 needs to be replaced, the hand wheel rod 17 is rotated to drive the bidirectional screw rod 18 to rotate, since the bidirectional screw rod 18 is threadedly connected with the two threaded blocks 19 respectively, at this time, the two threaded blocks 19 are forced to displace in the direction away from each other, driving the two arc-shaped clamping plates 22 to displace and lose the clamping force on the upper guide hole plate 3, conversely, the upper guide hole plate 3 is clamped and fixed, so that the upper guide hole plate 3 or the lower guide hole plate 5 with different hole diameters can be replaced according to the diameter of the drill bit, and the accuracy of the drill hole positioning and guiding is improved.

[0039] The utility model is convenient to operate, the locking mechanism is arranged, the threaded rod 6 can be prevented from rotating, the positioning of the upper guide hole plate 3 is accurate and stable, the accuracy of the drill hole depth adjustment for the craniocerebral operation is ensured, and the upper guide hole plate 3 or the lower guide hole plate 5 with different hole diameters can be replaced according to the diameter of the drill bit, and the accuracy of the drill hole positioning and guiding is improved.

[0040] In the description of the utility model, need understanding is, such as the term "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the present application and simplifying the description, and not indicate or imply the indicated device or element must have a particular orientation, with a particular orientation structure and operation, therefore can not be understood as the limitation of the present application.

[0041] In addition, in the description of the present application, the meaning of "multiple" is two or more than two, unless otherwise expressly specifically limited.

[0042] The above only describes the preferred embodiment of the present application and is not intended to limit the present application, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A drill guide for use in cranial surgery comprising a body shell characterised in that, The body shell is provided with a lifting adjusting mechanism, both sides of the body shell are provided with sliding openings, both ends of the lifting adjusting mechanism pass through the two sliding openings and are fixedly connected with first clamping mechanisms, the first clamping mechanisms are fixedly clamped with upper guide hole plates, both sides of the lower part of the body shell are fixedly connected with two symmetrically arranged fixing frames, the front ends of the two fixing frames are fixedly connected with second clamping mechanisms, the second clamping mechanisms are fixedly clamped with lower guide hole plates, and the lower guide hole plates are located directly below the upper guide hole plates. The lifting adjusting mechanism is inserted into the locking mechanism which is rotatably connected with the upper side wall of the body shell, the lower end of the locking mechanism is fixedly connected with a threaded rod, the threaded rod is threadedly connected with a nut block, both sides of the nut block are fixedly connected with two symmetrically arranged connecting rods, and the two connecting rods pass through the two sliding openings and are fixedly connected with the first clamping mechanisms.

2. The drill guide for brain surgery according to claim 1, wherein The locking mechanism comprises a cylindrical shell which is inserted into and rotatably connected with the upper side wall of the body shell, the upper end of the cylindrical shell is inserted and slidably connected with a hand pressing handle, the lower end of the hand pressing handle is fixedly connected with a sliding plate, the sliding plate and the inner bottom wall of the cylindrical shell are fixedly connected with a return spring, both sides of the lower end of the sliding plate are fixedly connected with two symmetrically arranged locking rods, both sides of the cylindrical shell are provided with notches, the two locking rods pass through the two notches, and the inner top wall of the body shell is provided with lock grooves which are arranged at equal intervals and surround the cylindrical shell.

3. The drill guide for brain surgery according to claim 2, wherein The inner wall of the cylindrical shell is slidably connected with the outer side wall of the sliding plate.

4. The drill guide for brain surgery according to claim 1, wherein The first clamping mechanism and the second clamping mechanism are of the same structure, the first clamping mechanism comprises a rectangular strip shell, one end of the rectangular strip shell is inserted and rotatably connected with a hand wheel rod, the inner end of the hand wheel rod is fixedly connected with a bidirectional screw rod, the bidirectional screw rod is threadedly connected with two symmetrically arranged threaded blocks, the front side walls of the two threaded blocks are fixedly connected with link rods, the front side wall of the rectangular strip shell is provided with an opening, the front ends of the two link rods pass through the opening and are fixedly connected with two symmetrically arranged arc-shaped clamping plates.

5. The drill guide for brain surgery according to claim 4, wherein One end of the rectangular strip shell located outside the hand wheel rod is fixedly connected with a bump ring.

6. The drill guide for brain surgery according to claim 1, wherein The rear side wall of the second clamping mechanism is fixedly connected with a fixed plate, the upper side wall of the fixed plate is fixedly connected with a limiting rod, the rear side wall of the first clamping mechanism is fixedly connected with a limiting sleeve, and the limiting sleeve is sleeved on the limiting rod.

7. The drill guide for brain surgery according to claim 1, wherein The lower end of the body shell is fixedly connected with a supporting pad.

8. The drill guide for brain surgery according to claim 1, wherein The rear side wall of the body shell is fixedly connected with a hand holding frame.

9. The drill guide for brain surgery according to claim 1, wherein The front side wall of the body shell is fixedly connected with a scale.

Images