CN100341465C

CN100341465C - Mirco-traumatic skull drill

Info

Publication number: CN100341465C
Application number: CNB2005100445186A
Authority: CN
Inventors: 张庆林; 张�成; 曹尚德; 孙金龙
Original assignee: 张庆林
Priority date: 2005-08-29
Filing date: 2005-08-29
Publication date: 2007-10-10
Anticipated expiration: 2025-08-29
Also published as: CN1729941A

Abstract

The present invention belongs to the technical field of the medical appliance, particularly to a micro-traumatic skull drill applied to a neurological clinical operation, which comprises a drill body 2, a rocking handle 7, a shaft 3, a shaft 4, a drill chuck 12, a drill 13 and a pair of bevel gears 10, 11, wherein the bevel gears are mutually engaged. The drill body 2 forms a bow shape. A pair of the bevel gears 10, 11 are respectively arranged on the shaft 3 and the shaft 4 in the drill body 2, and the shaft 3 and the shaft 4 are mutually vertical. The bevel gear 10 is integrally connected with the rocking handle 7 through a rocking lever 6, and a nut 9 and a press nut 8 arranged on the rocking lever 6. The drill chuck 12 is arranged outside the drill body 2 and is integrally connected with the shaft 4, and a handle 1 is arranged below the drill body 2. A finger concave 16 is arranged on the handle 1, and scale marks 14 are arranged on the drill 13. A drill tip 15 on the top of the drill 13 forms a flat tip shape. The present invention has the advantages of simple structure, easy and quick use, less trauma and less pain of patients, can be applied to a neurological clinical operation and is particularly applied to the emergency treatment of a patient with acute great occipital foramen brain hernia and patients who need ventricle out-of-body drainage in promotion.

Description

A kind of mirco-traumatic skull drill

Affiliated technical field

The invention belongs to technical field of medical instruments, particularly a kind of mirco-traumatic skull drill that is used for the neurosurgery clinical operation.

Background technology

In the neurosurgery clinical position, for Clinics and Practices often bores the cranium operation.In this area general brill cranium apparatus be generally bitbrace, pneumatic drill and electric drill, be the most frequently used with hand-rail type again wherein.Traditional hand-rail type bores the cranium device because the ratio of its drill bit and the rotating speed of wind is 1: 1, and brill cranium speed is slow, during Operation Fee, effort, patient's amount of bleeding is increased, thereby patient is painful big, especially be badly in need of mutually doing to bore under the situation of cranium in first aid cerebral hernia danger, often the cranium operation is complicated has incured loss through delay rescue time owing to boring, and has influenced therapeutic effect.Though electric drill and air drill have improved brill cranium speed, its complex structure involves great expense, and needs alternating current power supply or high pressure nitrogen as power source, and both inconvenience was also dangerous during use, and must finish in the operating room operation.In addition, adopt the preceding link of preparing of art of electric drill or pneumatic drill also to pollute easily, generally do not adopt than complexity.Application number is that the quick hand drill for craniotomy of 92112056.7 (publication number CN1084730A) and the patent No. are that 96205629.4 multifunctional convenient cranium bores, though solved above deficiency, but its structure is still complicated, because drive mechanism is unreasonable, thereby feasible operating still wasted time and energy, wound is bigger, and it is also inconvenient to clean, sterilize.

Summary of the invention

The objective of the invention is to design a kind of simple in structure, volume is little, and is easy to operate, finishes other can the operation of sick bed, grasps easily, takes a short time during operation, wound is little, patient is painful few, and guarantees a kind of mirco-traumatic skull drill of safety.Make it not be only applicable to general ventriculography, but also be applicable to the treatment of diseases such as cerebral hemorrhage (intraventricular hemorrhage), chronic subdural hematoma, be specially adapted to the concurrent great occipital foramen cerebral hernia of acute hydrocephalus patient's rescue.Make its drilling time shorten to 3-5 minute by original 30-40 minute.

The object of the present invention is achieved like this: it includes drill body, crank, axle, drill chuck, drill bit and a pair of intermeshing bevel gear, drill body is arc, a pair of bevel gear is located at respectively on the interior orthogonal axle of drill body, one bevel gear is by rocking bar and be located at the nut on the rocking bar and press and femalely be connected as a single entity with crank, the outside that drill chuck is located at drill body is connected as a single entity with axle, below drill body, be provided with handle, it is recessed that handle is provided with finger, drill bit is provided with scale, and the top apex point of drill bit is flat pointed.

Description of drawings

The invention will be further described below in conjunction with accompanying drawing:

Fig. 1 is a structural representation of the present invention,

Fig. 2 for the A of drill bit among the present invention to zoomed-in view,

Fig. 3 bores the lock sketch map for the present invention,

Fig. 4 wears the pin sketch map for brain of the present invention.

Among the figure: 1-handle, 2-drill body, 3-B axle, 4-C axle, 5-nut, 6 rocking bars, 7-crank, 8-press mother, 9-nut, 10-B bevel gear, 11-C bevel gear, 12-drill chuck, 13-drill bit, 14-scale, 15-apex point, 16-to refer to that recessed, 17-bores lock, the 18-brain wears pin, 19-trocar, the 20-pin heart.

Specific embodiment

As shown in drawings, the present invention includes drill body 2, crank 7, B axle 3, C axle 4, drill chuck 12, drill bit 13 and a pair of intermeshing B bevel gear 10, C bevel gear 11, drill body 2 is arc, B bevel gear 10, C bevel gear 11 is located at orthogonal B axle 3 in the drill body 2 respectively, on the C axle 4, B bevel gear 10 is by rocking bar 6 and be located at the nut 9 on the rocking bar 6 and press female 8 to be connected as a single entity with crank 7, the outside and C axle 4 that drill chuck 12 is located at drill body 2 are connected as a single entity, below drill body 2, be provided with handle 1, handle 1 is provided with and refers to recessed 16, drill bit 13 is provided with scale 14, the top apex point 15 of drill bit 13 is flat pointed, and B bevel gear 10 is 3: 1 with the ratio of the number of teeth of C bevel gear 11.

During use, according to the scalp that bores the cranium position and the thickness of skull, drill bit 13 is contained on the drill chuck 12, mix up the length of drill bit 13 according to the scale on the drill bit 13 14, with boring lock 17 locking drill chucks 12 drill bit 13 is clamped, at the Pi Qiu center of local anaesthesia protuberance, hold handle 1 for one drill bit 13 is vertically protruded into the through skull of scalp, press the target direction of intracranial puncture, the hand crank 7 of another bores cranium, after drill bit 13 pierced intracranial, requiring mental skill wore the predeterminated target that pin 18 penetrates intracranial, extract out the pin heart 20 see have liquid to flow out after, to lack silica gel tube and insert and derive trocar 19 by trocar 19, seam is pricked a pin near boring, and fixedly silica gel tube is on scalp, and wound dressing is built.At last long and short silica gel tube is coupled together,, make radiography or external ventricular drainages such as the ventricles of the brain and blister cavities according to state of an illness needs.

The present invention is simple in structure, volume is little, grasp in light weight, easy to operate, easy, during operation, save time, laborsaving, wound face and the complication opened in the cranium process have been significantly reduced, patient's misery and expense have been reduced, guarantee medical safety, meet the minimally-invasive treatment principle, in clinical, have popularizing value.

Claims

1, a kind of mirco-traumatic skull drill, include drill body (2), crank (7), B axle (3), C axle (4), drill chuck (12), drill bit (13) and a pair of intermeshing B bevel gear (10), C bevel gear (11), it is characterized in that described drill body (2) is for arc, B bevel gear (10), C bevel gear (11) is located at orthogonal B axle (3) in the drill body (2) respectively, on the C axle (4), B bevel gear (10) is by rocking bar (6) and be located at the nut (9) on the rocking bar (6) and press female (8) and crank (7) to be connected as a single entity, the outside and C axle (4) that drill chuck (12) is located at drill body (2) are connected as a single entity, be provided with handle (1) in the below of drill body (2), drill bit (13) is provided with scale, the top apex point (15) of drill bit (13) is flat pointed, and B bevel gear (10) is 3: 1 with the gear ratio of C bevel gear (11).