CN220109862U - Aiming and positioning arm for operation - Google Patents

Abstract

The utility model provides an aiming and positioning arm for surgery, which belongs to the technical field of medical instruments and aims at solving the problems that the existing aiming and positioning arm is poor in positioning effect, occupies a large space after being used and is inconvenient to store, and comprises an aiming guide pin, a guide arm, a swinging arm, a clamping pad, an adjusting arm, a first limiting plate, a second limiting plate, an extrusion rod and positioning teeth; the guide arm is connected to the upper part of the aiming guide pin in a vertical sliding way; the adjusting arm is connected to the inner side of the guide arm in a sliding way; the swing arm is rotatably connected to the right side of the adjusting arm; the clamping pad is fixedly connected to the lower part of the swing arm through a bolt; the first limiting plate is rotationally connected to the left side of the upper part of the swing arm; the second limiting plate is rotationally connected to the right side of the upper part of the swing arm; the extrusion rod is connected to the front side and the rear side of the swing arm in a front-rear sliding way; the positioning teeth are connected to the left side and the right side of the guide arm in a sliding manner; the utility model improves the positioning effect of the positioner, reduces the occupied space of the positioning arm and is convenient to store.

Description

Aiming and positioning arm for operation

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to an aiming and positioning arm for operation.

Background

When the dislocation of the acromioclavicular joint is treated, the commonly adopted treatment scheme is incision reduction internal fixation, a positioner is required to be used for positioning the acromioclavicular joint when an operation is carried out, and the existing positioner usually comprises a aiming guide needle, a positioning arm, a guide handle, an anti-drop hole, a locking groove, a locking block and the like.

For example, cn202220242750.X discloses a acromioclavicular joint positioner, which comprises a guide handle, a positioning arm and a aiming guide needle, wherein a through hole for inserting the aiming guide needle is arranged on the guide handle in a penetrating way, and the aiming guide needle and the guide handle are fixed through a locking mechanism; the locking mechanism comprises a lock pin and a spring, a locking hole for installing the lock pin is formed in the guide handle, and the locking hole vertically penetrates through the through hole; the aiming guide pin comprises a stop block and a guide rod, wherein a clamping groove matched with the lock pin is formed in the outer wall of the guide rod, and a stop ring groove is formed in one end, far away from the stop block, of the guide rod. According to the acromioclavicular joint locator, the anti-falling measures are arranged between the locating arm and the guide handle and between the aiming guide needle and the guide handle, so that the occurrence of the phenomenon of separation or falling of parts caused by misoperation in the operation process can be greatly reduced, the structure is simple, and the operation is convenient.

Based on the above, current aiming locating arm is when angle modulation accomplishes, relies on the latch segment to compress tightly the frictional force that produces when locking the recess and realizes the determination to locating arm position usually, but locating arm appears removing easily when receiving the powerful pulling, leads to the positioning effect of locator not good enough to locating arm is mostly fixed knot constructs, needs occupy great space after using to accomplish, accomodates comparatively inconveniently.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the aiming and positioning arm for the operation, which aims at solving the problems that when the angle adjustment of the existing aiming and positioning arm is finished, the positioning arm is usually determined by virtue of friction force generated when a locking block compresses a locking groove, but the positioning arm is easy to move when being pulled by a large force, so that the positioning effect of a positioner is poor, the positioning arm is of a fixed structure, and the positioning arm occupies a large space after the use is finished, so that the positioning arm is inconvenient to store.

The utility model discloses a purpose and an effect of an aiming and positioning arm for operation, which are achieved by the following specific technical means:

an operation aiming and positioning arm comprises an aiming guide pin, a guide arm, a swing arm, a clamping pad, an adjusting arm, a first limiting plate, a second limiting plate, an extrusion rod and positioning teeth; the guide arm is connected to the upper part of the aiming guide pin in an up-down sliding way; the adjusting arm is connected to the inner side of the guide arm in a sliding manner; the swing arm is rotatably connected to the right side of the adjusting arm; the clamping pad is fixedly connected to the lower part of the swing arm through a bolt; the first limiting plate is rotatably connected to the left side of the upper part of the swing arm; the second limiting plate is rotatably connected to the right side of the upper part of the swing arm; the two extrusion rods are respectively connected to the front side and the rear side of the upper part of the swing arm in a sliding way; the two positioning teeth are respectively connected to the left side and the right side of the upper portion of the guide arm in an up-down sliding mode.

Further, the adjusting arm comprises a push plate; the push plates are provided with a plurality of push plates which are uniformly distributed and fixedly connected to the front end face of the adjusting arm.

Further, the guide arm comprises a locking worm wheel and an adjusting worm; the locking worm wheel is rotatably connected to the left side of the guide arm; the adjusting worm is rotatably connected to the left side of the guide arm; the adjusting worm is meshed with the locking worm wheel.

Further, the adjusting arm also comprises a limiting tooth; the limiting teeth are uniformly distributed and fixedly connected to the rear end face of the adjusting arm; the two positioning teeth are elastically connected with the guide arm through springs.

Further, the front side and the rear side of the lower part of the first limiting plate are fixedly connected with a positioning block respectively; the front side and the rear side of the lower part of the second limiting plate are fixedly connected with a positioning block respectively; the lower part of the second limiting plate is of an arc-shaped structure; four positioning grooves are uniformly distributed on the upper portion of the swing arm.

Further, the aiming guide pin comprises a control rack; the control rack is fixedly connected to the upper end face of the aiming guide pin; the control rack is connected with the guide arm in a sliding manner;

the guide arm also comprises a control gear; the control gear is rotationally connected to the left side of the guide arm, and the control gear is fixedly connected with the locking worm gear in a coaxial mode.

Further, the two extrusion rods are elastically connected with the swinging arms through a plurality of springs; the inner side end face of the extrusion rod is an inclined face.

Further, the guide arm also comprises a limit groove; the two limiting grooves are respectively formed in the left side and the right side of the guide arm; the two positioning teeth are respectively positioned at the inner sides of the two limiting grooves.

Further, the clamping pad comprises a protection pad; the protection pad is fixedly connected to the upper end face of the clamping pad.

Furthermore, a plurality of scale marks are uniformly distributed on the front end face of the guide arm.

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

according to the utility model, the worm gear is additionally arranged on the basis of the traditional aiming and positioning arm, and the control rack is driven to slide by the adjusting worm and the locking worm gear, so that the adjustment of the aiming guide needle position is realized, the guide arm can be locked, the position accuracy of the guide arm is effectively ensured, and the adjustment of the fixed position of the aiming and positioning arm according to the sizes of acromioclavicular joints of different patients is facilitated.

According to the utility model, the positioning teeth and the limiting teeth are additionally arranged on the basis of the traditional aiming positioning arm, the position of the adjusting arm is fixed through the matching relation between the limiting teeth and the positioning teeth, the situation that the adjusting arm moves after being pulled is effectively avoided, and the positioning effect of the positioner is improved.

According to the utility model, the swing arm is additionally arranged on the basis of the traditional aiming and positioning arm, the positioning arm is conveniently folded through the swing of the swing arm, the occupied space of the positioning arm is reduced, the positioning arm is convenient to store, and the operation is simple and convenient.

The utility model effectively improves the accuracy of the fixed position of the aiming and positioning arm, is convenient for adjusting the fixed position of the aiming and positioning arm according to the sizes of the acromioclavicular joints of different patients, effectively avoids the condition that the adjusting arm moves after being pulled, improves the positioning effect of the positioner, improves the use comfort of the clamping pad, effectively improves the adjusting efficiency of the adjusting arm, reduces the occupied space of the aiming and positioning arm, is convenient for accommodating the aiming and positioning arm, and is simple and convenient to operate.

Drawings

Fig. 1 is a schematic view of the overall structure of the present utility model.

Fig. 2 is a schematic view of the structure of the aiming guide pin of the present utility model.

Fig. 3 is a schematic view of the structure of the clamping pad of the present utility model.

Fig. 4 is a schematic structural view of the adjusting arm of the present utility model.

Fig. 5 is a schematic view of the structure of the swing arm of the present utility model.

Fig. 6 is a schematic view of the structure of the guide arm of the present utility model.

Fig. 7 is a partially enlarged schematic view of the structure of fig. 4 a according to the present utility model.

Fig. 8 is a partially enlarged schematic structural view of the present utility model at B in fig. 5.

Fig. 9 is a partially enlarged schematic construction view of fig. 5C according to the present utility model.

In the figure, the correspondence between the component names and the drawing numbers is:

1. aiming the guide pin; 101. controlling a rack; 2. a guide arm; 201. a control gear; 202. locking the worm wheel; 203. adjusting a worm; 204. a limit groove; 3. a swing arm; 4. a clamping pad; 401. a protective pad; 5. an adjustment arm; 501. a push plate; 502. limit teeth; 6. a first limiting plate; 7. a second limiting plate; 8. an extrusion rod; 9. positioning teeth.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples.

Examples:

as shown in fig. 1 to 9:

the utility model provides an operation aiming and positioning arm, which comprises an aiming guide pin 1, a guide arm 2, a swinging arm 3, a clamping pad 4, an adjusting arm 5, a first limiting plate 6, a second limiting plate 7, an extrusion rod 8 and positioning teeth 9; the guide arm 2 is connected to the upper part of the aiming guide pin 1 in a vertical sliding way; the adjusting arm 5 is connected with the inner side of the guide arm 2 in a sliding way; the swing arm 3 is rotatably connected to the right side of the adjusting arm 5; the clamping pad 4 is fixedly connected to the lower part of the swing arm 3 through a bolt; the first limiting plate 6 is rotatably connected to the left side of the upper part of the swing arm 3; the second limiting plate 7 is rotatably connected to the right side of the upper part of the swing arm 3; the two extrusion rods 8 are arranged, and the two extrusion rods 8 are respectively connected on the front side and the rear side of the upper part of the swinging arm 3 in a front-rear sliding way; the two positioning teeth 9 are arranged, and the two positioning teeth 9 are respectively connected on the left side and the right side of the upper part of the guide arm 2 in an up-down sliding way.

Wherein the guide arm 2 comprises a locking worm wheel 202 and an adjusting worm 203; the locking worm wheel 202 is rotatably connected to the left side of the guide arm 2; the adjusting worm 203 is rotatably connected to the left side of the guide arm 2; the adjusting worm 203 is meshed with the locking worm wheel 202; in use, the locking worm wheel 202 drives the control gear 201 to rotate by rotating the adjusting worm 203, and meanwhile, the guide arm 2 can be locked, so that the accuracy of the position of the guide arm 2 is effectively ensured.

Wherein, the aiming guide pin 1 comprises a control rack 101; the control rack 101 is fixedly connected to the upper end face of the aiming guide pin 1; the control rack 101 is in sliding connection with the guide arm 2;

the guide arm 2 also comprises a control gear 201; the control gear 201 is rotationally connected to the left side of the guide arm 2, and the control gear 201 is fixedly connected with the locking worm wheel 202 in a coaxial manner; in use, the control gear 201 pushes the control rack 101 to slide, so that the position of the aiming guide pin 1 is adjusted.

Wherein, the guiding arm 2 also comprises a limit groove 204; the two limiting grooves 204 are arranged, and the two limiting grooves 204 are respectively arranged on the left side and the right side of the guide arm 2; the two positioning teeth 9 are respectively positioned at the inner sides of the two limiting grooves 204; in use, the oscillating direction of the positioning teeth 9 is limited by the limiting groove 204, so that the oscillating directions of the two positioning teeth 9 are opposite.

Wherein the clamping pad 4 comprises a protection pad 401; the protection pad 401 is fixedly connected to the upper end surface of the clamping pad 4; in use, the comfort of the grip pad 4 is enhanced by the guard pad 401.

Wherein the adjusting arm 5 comprises a push plate 501; the plurality of push plates 501 are arranged, and the plurality of push plates 501 are uniformly distributed and fixedly connected to the front end face of the adjusting arm 5; in use, the position of the adjusting arm 5 is conveniently adjusted by pushing the push plate 501, so that the adjusting efficiency of the adjusting arm 5 is effectively improved.

Wherein, the adjusting arm 5 further comprises a limiting tooth 502; the limiting teeth 502 are provided with a plurality of limiting teeth 502, and the plurality of limiting teeth 502 are uniformly distributed and fixedly connected to the rear end face of the adjusting arm 5; the two positioning teeth 9 are elastically connected with the guide arm 2 through springs; in use, one of the positioning teeth 9 is pulled upwards to enable the adjusting arm 5 to slide unidirectionally, the condition that the adjusting efficiency is affected by shaking the adjusting arm 5 back and forth when the adjusting arm 5 is adjusted is avoided, the positioning teeth 9 are loosened after the adjustment is completed, the two-way locking of the adjusting arm 5 can be realized, the position of the adjusting arm 5 is fixed through the matching relation between the limiting teeth 502 and the positioning teeth 9, the situation that the adjusting arm 5 moves after being pulled is effectively avoided, and the positioning effect of the positioner is improved.

Wherein, the front end surface of the guide arm 2 is uniformly distributed with a plurality of scale marks; in use, the adjustment angle of the adjusting arm 5 is conveniently determined through the scale marks, the accuracy of the aiming and positioning arm position is effectively improved, and the movement of the adjusting arm 5 is guided through the guide arm 2.

Wherein, the front side and the rear side of the lower part of the first limiting plate 6 are respectively fixedly connected with a positioning block; the front side and the rear side of the lower part of the second limiting plate 7 are fixedly connected with a positioning block respectively; the lower part of the second limiting plate 7 is of an arc-shaped structure; four positioning grooves are uniformly distributed on the upper part of the swing arm 3; in use, the swing arm 3 is convenient to fold the aiming locating arm, the occupied space of the aiming locating arm is reduced, the storage of the aiming locating arm is convenient, the locating block is inserted into the locating groove by upwards rotating the first limiting plate 6 and the second limiting plate 7, the position of the swing arm 3 is determined, the operation is simple and convenient, the adjusting efficiency of the swing arm 3 is effectively improved, and the fitting degree of the second limiting plate 7 and the swing arm 3 is improved through the circular arc at the lower part of the second limiting plate 7.

Wherein, the two extrusion rods 8 are elastically connected with the swinging arm 3 through a plurality of springs; the inner side end surface of the extrusion rod 8 is an inclined surface; in use, the pressing rod 8 is pressed inwards to push the pressing rod 8 to the outer side of the positioning block, so that the first limiting plate 6 and the second limiting plate 7 are conveniently removed to cancel positioning of the swinging arm 3.

Specific use and action of the embodiment: in use, the locking worm wheel 202 drives the control gear 201 to rotate through rotating the adjusting worm 203, meanwhile, the guide arm 2 can be locked, the accuracy of the position of the guide arm 2 is effectively ensured, the control gear 201 pushes the control rack 101 to slide, thus the position of the aiming guide needle 1 is adjusted, the fixed position of the aiming positioning arm is conveniently adjusted according to the sizes of different patient shoulder joints, the swinging direction of the positioning teeth 9 is limited through the limiting groove 204, the swinging directions of the two positioning teeth 9 are opposite, the adjusting arm 5 can slide unidirectionally by pulling one of the positioning teeth 9 upwards, the condition that the adjusting efficiency is influenced by the back and forth swinging of the adjusting arm 5 when the adjusting arm 5 is adjusted is avoided, the bidirectional locking of the adjusting arm 5 can be realized by loosening the positioning teeth 9 after the adjustment is completed, the position of the adjusting arm 5 is fixed through the matching relation between the limiting teeth 502 and the positioning teeth 9, the situation that the adjusting arm 5 moves after being pulled is effectively avoided, the positioning effect of the positioner is improved, the use comfort of the clamping pad 4 is improved through the protection pad 401, the position of the adjusting arm 5 is conveniently adjusted through pushing the push plate 501, the adjusting efficiency of the adjusting arm 5 is effectively improved, the adjusting angle of the adjusting arm 5 is conveniently determined through scale marks, the aiming positioning arm is conveniently folded through the swinging of the swinging arm 3, the occupied space of the positioning arm is reduced, the storage of the positioning arm is convenient, the positioning block is inserted into the positioning groove through upwards rotating the first limiting plate 6 and the second limiting plate 7, the position of the swinging arm 3 is determined, the operation is simple and convenient, the adjusting efficiency of the swinging arm 3 is effectively improved, the fitting degree of the second limiting plate 7 and the swinging arm 3 is improved through the circular arc at the lower part of the second limiting plate 7.

Claims (10)

1. An operation is with aiming locating arm which characterized in that: the device comprises an aiming guide pin (1), a guide arm (2), a swinging arm (3), a clamping pad (4), an adjusting arm (5), a first limiting plate (6), a second limiting plate (7), an extrusion rod (8) and positioning teeth (9); the guide arm (2) is connected to the upper part of the aiming guide pin (1) in an up-down sliding way; the adjusting arm (5) is connected to the inner side of the guide arm (2) in a sliding manner; the swing arm (3) is rotatably connected to the right side of the adjusting arm (5); the clamping pad (4) is fixedly connected to the lower part of the swing arm (3) through a bolt; the first limiting plate (6) is rotatably connected to the left side of the upper part of the swing arm (3); the second limiting plate (7) is rotatably connected to the right side of the upper part of the swing arm (3); the front side and the rear side of the upper part of the swing arm (3) are respectively connected with the extrusion rod (8) in a front-rear sliding way; the left side and the right side of the upper part of the guide arm (2) are respectively connected with one positioning tooth (9) in an up-down sliding way; the guide arm (2) comprises a locking worm wheel (202) and an adjusting worm (203).

2. A surgical aiming arm as defined in claim 1, wherein: the locking worm wheel (202) is rotatably connected to the left side of the guide arm (2); the adjusting worm (203) is rotatably connected to the left side of the guide arm (2); the adjusting worm (203) is meshed with the locking worm wheel (202).

3. A surgical aiming arm as defined in claim 1, wherein: the aiming guide pin (1) comprises a control rack (101); the control rack (101) is fixedly connected to the upper end face of the aiming guide pin (1); the control rack (101) is in sliding connection with the guide arm (2);

the guide arm (2) also comprises a control gear (201); the control gear (201) is rotatably connected to the left side of the guide arm (2), and the control gear (201) is fixedly connected with the locking worm wheel (202) in a coaxial manner.

4. A surgical aiming arm as defined in claim 1, wherein: the guide arm (2) further comprises a limit groove (204); the left side and the right side of the guide arm (2) are respectively provided with a limiting groove (204).

5. A surgical aiming arm as defined in claim 1, wherein: the clamping pad (4) comprises a protection pad (401); the protection pad (401) is fixedly connected to the upper end face of the clamping pad (4).

6. A surgical aiming arm as defined in claim 1, wherein: the adjusting arm (5) comprises a push plate (501); the front end face of the adjusting arm (5) is uniformly distributed and fixedly connected with a plurality of pushing plates (501).

7. A surgical aiming arm as defined in claim 1, wherein: the adjusting arm (5) further comprises limiting teeth (502); the rear end face of the adjusting arm (5) is uniformly and fixedly connected with a plurality of limiting teeth (502); the positioning teeth (9) are elastically connected with the guide arms (2).

8. A surgical aiming arm as defined in claim 1, wherein: the front end face of the guide arm (2) is uniformly distributed with a plurality of scale marks.

9. A surgical aiming arm as defined in claim 1, wherein: the front side and the rear side of the lower part of the first limiting plate (6) are fixedly connected with a positioning block respectively; the front side and the rear side of the lower part of the second limiting plate (7) are fixedly connected with a positioning block respectively; four positioning grooves are uniformly distributed on the upper part of the swing arm (3).

10. A surgical aiming arm as defined in claim 1, wherein: both the extrusion rods (8) are elastically connected with the swinging arms (3).