CN2270466Y

CN2270466Y - Cervical vertebrae operative instruments

Info

Publication number: CN2270466Y
Application number: CN 95228609
Authority: CN
Inventors: 程东源
Original assignee: Chinese PLA General Hospital
Current assignee: Chinese PLA General Hospital
Priority date: 1995-12-22
Filing date: 1995-12-22
Publication date: 1997-12-17
Anticipated expiration: 2005-12-22

Abstract

The utility model discloses a cervical vertebrae front part path entering operative instrument, which belongs to a medical instrument. The proper improvement is made based on a Cloward instrument, and six instruments are increased. The utility model is composed of ten instruments which are a drill bit of a vertebral body, a guide pipe of the drill bit, a fixing ring, a fracture fixating ring for a cervical vertebrae, an extractor for the fixing ring, an odontoid projection-shaped pull opening plate, a bone bolt extractor, an ilium tong, a ligament tong and an inner diameter measurement apparatus. The fracture fixating ring for the cervical vertebrae in the instruments can be fixed on the vertebral body selectively, and the utility model has the advantages of simple structure, convenient use, etc.

Description

Cervical vertebra approach operating theater instruments

The utility model discloses a cover cervical vertebra approach operating theater instruments, belong to medical apparatus and instruments.

At present, the operating theater instruments that is used for treatment of cervical spondylopathy clinically mainly is to use the cloward apparatus, and this apparatus is bored, retracted plate, retainer ring and drill bit guide pipe and form by cloward.Because the direction of operating of regulation does not match in drill bit front threads direction of rotation that cloward wherein bores and the operation, makes that the drill bit drilling speed is slow; The shape that retracts plate plate body is rectangle, and can not give fully to retract exposure for operative site; The retainer ring holddown groove is located at ring internal diameter opening part, the pin of drill bit guide pipe is located at inboard, tube wall front openings place, retainer ring and drill bit guide pipe must be to lumping together in operation process, but structurally make involutory process be difficult to quick realization between existing fixed ring and the drill bit guide pipe; Can not satisfy actual needs.

The purpose of this utility model is based on above-mentioned apparatus, after making suitable improvement and increasing by six apparatuses, provides a cover to be applicable to cervical vertebra approach operating theater instruments clinical, simple in structure, easy to use, applied range.

The purpose of this utility model is achieved in that

This utility model is made up of ten apparatuses, be respectively that cone drill bit, drill bit guide pipe, retainer ring, fracture of cervical vertebra retainer ring, retainer ring trip out device, Odontoid process shape retracts plate, bone bolt extractor, ilium pincers, ligament pincers and internal diameter measuring instrument, its shape and structure are respectively:

1. cone drill bit: be made up of drilling rod and drill bit, bit face is shaped on screw thread, and the direction of rotation of spiral shell mosquito is clockwise direction;

2. drill bit guide pipe: be made up of tube head, tube wall and pin, the quantity of pin is two, and left and right symmetrically is distributed in tube wall front openings place;

3. retainer ring: offer two holddown grooves up and down symmetrically along ring position, outer, be processed with two grooves along ring outer left-right symmetric, four jiaos of retainer ring are respectively equipped with four locking pins;

4. fracture of cervical vertebra retainer ring: offer two holddown grooves up and down symmetrically along position, retainer ring outer, on 90 ° of outers of locating, be processed with a groove with two holddown grooves; Encircle right-hand two jiaos and be provided with two locking pins; The ring body right side is connected with handle, is arranged with two locking pins on the handle;

5. retainer ring trips out device: be made up of a hand lever and a hook, it is flat to play the hook front end, is bent upwards;

6. Odontoid process shape retracts plate: be made up of wrench, plate body and Odontoid process ejecting plate three parts, the Odontoid process ejecting plate is positioned at position, center, plate body the place ahead;

7. bone bolt extractor: be made up of handle and drill point, the drill point head is shaped on screw thread; The direction of rotation of spiral shell mosquito is clockwise direction;

8. ilium clamps: partly be made up of jaw, caliper and pincers handle three, wherein jaw partly is made up of left jaw and right jaw, four jiaos of caliper are arranged with four hinges, pincers shank part is made up of left side pincers handle and right pincers handle, pincers handle inboard, a left side is provided with a reseting spring leaf, and reseting spring leaf is connected with left side pincers handle by screw;

9. ligament clamps: be made up of jaw, connection tube and handle three parts, wherein jaw partly is made up of regular jaw and moving jaw; Be provided with connecting rod in the connection tube, link rod head is connected with moving jaw by connecting plate, and the connecting rod afterbody partly is connected with handle by ball pivot;

10. internal diameter measuring instrument: by fixation clamps, move pincers and rule is formed, be connected by hinge between fixation clamps and moving clamps, rule is fixed in the fixation clamps afterbody.

Adopted the utility model of said structure, wherein the spiral shell mosquito that is provided with of cone drill bit surface and the direction of operating in the surgical protocols match, and make drilling speed accelerate; The change of drill bit guide pipe pin and retainer ring holddown groove position helps involutory between drill bit guide pipe and the retainer ring; The fracture of cervical vertebra retainer ring can be fixed on the vertebral body selectively; The hook design that rises that retainer ring trips out device matches with groove on the retainer ring, makes the convenience that trips out of retainer ring; The Odontoid process ejecting plate that Odontoid process shape retracts in the plate can insert in the good bone hole of brill, makes Odontoid process shape retract the relative operative site exposure of plate and fills part more; The drill point of bone bolt extractor can pierce and pull out the bone bolt apace; Ilium pincers jaw shape and ilium shape match, and remove in the process at pincers and have avoided ilium unnecessary damage and consumption; The ligament pincers are the clamping ligament easily, is the interlock of may command jaw by handle moving connecting rod of generation; Internal diameter measuring instrument has solved the difficulty of problem in the past measure to(for) deep wound, determines length by the rule that is connected on the fixed ruler, finishes measuring process by the folding of attachable mechanical stage; Ligament pincers in this utility model, interior neck measuring instrument can also be used for the use in other field, have the advantage of applied range.

Below in conjunction with accompanying drawing this utility model is further described.

Fig. 1 is the front view of cone drill bit in this utility model;

Fig. 2 is the front view of drill bit guide pipe in this utility model;

Fig. 3 is the vertical view of drill bit guide pipe in this utility model;

Fig. 4 is the front view of retainer ring in this utility model;

Fig. 5 is the vertical view of retainer ring in this utility model;

Fig. 6 is the front view of fracture of cervical vertebra retainer ring in this utility model;

Fig. 7 is the vertical view of fracture of cervical vertebra retainer ring in this utility model;

Fig. 8 is the front view that retainer ring trips out device in this utility model;

Fig. 9 is the vertical view that retainer ring trips out device in this utility model;

Figure 10 is the front view that Odontoid process shape retracts plate in this utility model;

Figure 11 is the front view of bone bolt extractor in this utility model;

Figure 12 is the front view of ilium pincers in this utility model;

Figure 13 is the front view of ligament pincers in this utility model;

Figure 14 is a ligament pincers jaw enlarged drawing partly in this utility model;

Figure 15 is the front view of internal diameter measuring instrument in this utility model.

As shown in Figure 1, cone drill bit is made up of drilling rod 1 and drill bit 2, and drill bit 2 surfaces are shaped on screw thread 3, and the direction of rotation of screw thread 3 is clockwise direction.

By Fig. 2 and Fig. 3 as can be known, the drill bit guide pipe is made up of tube head 4, tube wall 5 and pin 6, and the quantity of pin 6 is two, and left and right symmetrically is distributed in tube wall 5 front openings places.

By Fig. 4 and Fig. 5 as can be known, retainer ring offers two holddown grooves 7 up and down symmetrically along ring position, outer, is processed with two grooves 9 along ring outer left-right symmetric, and four jiaos of retainer ring are respectively equipped with four locking pins 8.

By Fig. 6 and Fig. 7 as can be known, the fracture of cervical vertebra retainer ring offers two holddown grooves 10 up and down symmetrically along position, retainer ring outer, on 90 ° of outers of locating, be processed with a groove 11 with two holddown grooves, encircle right-hand two jiaos and be provided with two locking pins 12, the ring body right side is connected with handle 13, is arranged with two locking pins 14 on the handle 13.

By Fig. 8 and Fig. 9 as can be known, retainer ring trips out device by hand lever 15 with play a hook 16 and forms, and hook 16 front end is flat, is bent upwards.

By Figure 10 and Figure 11 as can be known, Odontoid process shape retracts plate and is made up of wrench 17, plate body 18 and Odontoid process ejecting plate 19, and Odontoid process ejecting plate 19 is positioned at position, center, plate body 18 the place aheads.

As shown in Figure 12, bone bolt extractor is made up of handle 20 and drill point 21, and the drill point head is shaped on screw thread 22, and the direction of rotation of spiral shell mosquito 22 is the clockwise direction rotation;

As shown in Figure 13, the ilium pincers partly are made up of jaw, caliper and pincers handle three, wherein jaw partly is made up of left jaw 23 and right jaw 24, four jiaos of caliper are arranged with four hinges 25 and 26, the pincers handle is made up of left side pincers handle 27 and right pincers handle 28, pincers handle 27 inboards, a left side are provided with a reseting spring leaf 29, and reseting spring leaf 29 is connected with left side pincers handle 27 by screw 30.When the ilium pincers are in off working state, rely on reseting spring leaf 29 to make left side pincers handle 27 and right pincers handle 28 separately, the hinge 26 that is positioned at left side pincers handle 27 and right pincers handle 28 heads produces closed action around hinge 25 rotations, make left jaw 23 and right jaw 24 separately, in like manner, when left side pincers handle 27 and right pincers handle 28 closures, left jaw 23 and right jaw 24 produce closed action.

By Figure 14 and Figure 15 as can be known, the ligament pincers are by jaw, connection tube and handle three are partly formed, wherein jaw partly is made up of regular jaw 31 and moving jaw 32, regular jaw 31 is fixed on the connection tube 37, one connecting plate 33 is arranged between moving jaw 32 and the connecting rod 38, connecting plate 33 is provided with hinge 35 and hinge 36, hinge 35 is connected with moving jaw 32, hinge 36 is connected with connecting rod 38, moving jaw 32 middle parts have hinge 34 to be connected with connection tube 37, be provided with connecting rod 38 in the connection tube 37, connecting rod 38 heads are connected with moving jaw 32 by connecting plate 33, connecting rod 38 afterbodys partly are connected with handle by ball pivot 41, and connection tube 37 afterbodys have a base 39, and base 39 is fixed on the connection tube 37 by screw 41; Handle partly is made up of fixed handle 42 and flexible handle 43, is connected by cutting with scissors 44 between fixed handle 42 and the flexible handle 43.During operation, with fixed handle 42 and flexible handle 43 closures, ball pivot 41 promptly around hinge 44 to external rotation, move behind the pulling connecting rod 38, connecting rod 38 after by connecting plate 33 moving jaw 32 is rotated when moving, make moving jaw 32 and regular jaw 31 interlocks; When fixed handle 42 and flexible handle 43 separately the time, promptly produce opposite action, make moving jaw 32 and regular jaw 31 separately.

As shown in Figure 16, internal diameter measuring instrument is made up of fixation clamps 45, mobile pincers 46 and rule 48, is connected by cutting with scissors 47 between fixation clamps 45 and the mobile pincers 46, and rule 48 is fixed on fixation clamps 45 afterbodys 51.During use the head 49 of fixation clamps 45 and the head 50 that moves pincers 46 put into and need sites measured, at this moment, the afterbody 52 that moves pincers 46 moves around hinge 47, promptly demonstrates the scale at the position of surveying on rule 48.

Claims

1. a cover cervical vertebra approach operating theater instruments is characterized in that: by cone drill bit, drill bit guide pipe, retainer ring, fracture of cervical vertebra retainer ring, retainer ring trip out device, Odontoid process shape retracts plate, bone bolt extractor, ilium pincers, ligament pincers and ten apparatuses of internal diameter measuring instrument and forms.

2. operating theater instruments according to claim 1 is characterized in that: cone drill bit is made up of drilling rod (1) and drill bit (2), and drill bit (2) surface is shaped on screw thread (3), and the direction of rotation of screw thread (3) is clockwise direction.

3. operating theater instruments according to claim 1 is characterized in that: bit guide is made up of tube head (4), tube wall (5) and pin (6), and the quantity of pin (6) is two, and left and right symmetrically is distributed in tube wall (5) front openings place.

4. operating theater instruments according to claim 1, it is characterized in that: retainer ring is opened in two holddown grooves (7) up and down symmetrically along ring position, outer, be processed with two grooves (9) along ring outer left-right symmetric, four jiaos of retainer ring are respectively equipped with four locking pins (8).

5. operating theater instruments according to claim 1 is characterized in that: the fracture of cervical vertebra retainer ring offers two holddown grooves (10) up and down symmetrically along position, retainer ring outer, is processed with a groove (11) with two holddown grooves on 90 ° of outers of locating; Encircle right-hand two jiaos and be provided with two locking pins (12); The ring body right side is connected with handle (13), is arranged with two locking pins (14) on the handle (13).

6. operating theater instruments according to claim 1 is characterized in that: retainer ring trips out device to be made up of a hand lever (15) and a hook (16), and it is flat to play hook (16) front end, is bent upwards.

7. operating theater instruments according to claim 1 is characterized in that; The dentation figure retracts plate partly to be made up of wrench (17), plate body (18) and Odontoid process ejecting plate (19) three, and Odontoid process ejecting plate (19) is positioned at position, center, plate body (18) the place ahead.

8. operating theater instruments according to claim 1 is characterized in that: bone bolt extractor is made up of handle (20) and drill point (21), and drill point (21) head is shaped on screw thread (22), and the direction of rotation of spiral shell mosquito (22) is the clockwise direction rotation.

9. operating theater instruments according to claim 1, it is characterized in that: the ilium pincers partly are made up of jaw, caliper and pincers handle three, wherein jaw partly is made up of left jaw (23) and right jaw (24), four jiaos of caliper are arranged with four hinges (25) and (26), pincers shank part clamps handle (27) by a left side and right pincers handles (28) are formed, pincers handle (27) inboard, a left side is provided with a reseting spring leaf (29), and reseting spring leaf (29) is connected with left side pincers handles (27) by screw (30).

10. operating theater instruments according to claim 1 is characterized in that: the ligament pincers partly are made up of jaw, connection tube and handle three, and wherein jaw partly is made up of regular jaw (31) and moving jaw (32); Be provided with connecting rod (38) in the connection tube (37), connecting rod (38) head is connected with moving jaw (32) by connecting plate (33), and connecting rod (38) afterbody partly is connected with handle by ball pivot (41).

11. operating theater instruments according to claim 1, it is characterized in that: internal diameter measuring instrument is made up of fixation clamps (45), mobile pincers (46) and rule (48), be connected by hinge (47) between fixation clamps (45) and the mobile pincers (46), rule (48) is fixed on fixation clamps (45) afterbody (51).