CN111214262A

CN111214262A - A strut apparatus for lumbar vertebrae spinous process position

Info

Publication number: CN111214262A
Application number: CN202010048823.7A
Authority: CN
Inventors: 赵磊
Original assignee: Shandong Otolaryngological Hospital (western Hospital Of Shandong Provincial Hospital)
Current assignee: Shandong Otolaryngological Hospital (western Hospital Of Shandong Provincial Hospital)
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-06-02
Anticipated expiration: 2040-01-16
Also published as: CN111214262B

Abstract

The invention discloses a distraction apparatus for a lumbar spinous process part, and mainly relates to the field of medical apparatuses. Including strutting the portion, the portion of gripping, the portion of strutting includes two and struts the unit, the portion of gripping includes left side gripping handle, right side gripping handle, it is including strutting mouth, vaulting pole, slider, connecting rod to strut the unit, it is equipped with the support to strut between portion and the portion of gripping, the one end that the support was kept away from to left side gripping handle is equipped with the limiting plate, the limiting plate is articulated with left gripping handle through the fourth articulated shaft, be equipped with the torsional spring on the fourth articulated shaft, the one end and the left side gripping handle of torsional spring are connected, and the other end and limiting plate connection, be equipped with a plurality of locking hole on the limiting plate, the one end that the support was kept away from to right side gripping handle is equipped with. The invention has the beneficial effects that: the operation is light, and automatic locking when strutting can simplify medical personnel's operation process, reduces medical personnel's wrist burden, alleviates patient's misery.

Description

A strut apparatus for lumbar vertebrae spinous process position

Technical Field

The invention relates to the field of medical instruments, in particular to a distraction instrument for a lumbar spinous process part.

Background

When treating lumbar degenerative diseases, the lumbar spinous processes of adjacent segments of the degenerative intervertebral space are often distracted by means of distraction instruments, and the instruments can be used for resection. Most of the existing lumbar spinous process distraction instruments are used for distracting the lumbar spinous processes of adjacent sections by two distraction mouths which can be parallelly distracted or folded, for example, in the patent of the existing invention with the patent number of 201410392576.7, the instrument for distracting the lumbar spinous processes can effectively distract the lumbar intervertebral space, enlarge the lumbar intervertebral space and effectively prevent the spinous processes from loosening from the distracter is specifically disclosed, but when the instrument is used, the too long instrument body causes the wrist pressure of medical staff to be too high, and after the lumbar spinous processes are distracted, the wrist staff needs to be manually locked, and in the manual locking process, the wrist of the medical staff needs to be kept in a holding state, the strength requirement on the wrist of the medical staff is high, the problem of the distraction of the lumbar spinous processes possibly occurs, sometimes, secondary distraction is needed, and certain pain is brought to patients.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides the distraction instrument for the lumbar spinous process part, which is convenient to operate and can automatically lock, wherein the distraction instrument can automatically lock while distracting, the operation process of medical personnel can be simplified, the wrist burden of the medical personnel is reduced, and the pain of a patient is relieved.

In order to achieve the purpose, the invention is realized by the following technical scheme:

a strutting instrument for the spinous process part of the lumbar vertebra comprises a strutting part and a holding part, wherein the strutting part comprises two strutting units, the holding part comprises a left holding handle and a right holding handle, the strutting unit comprises a strutting mouth, a strutting rod, a sliding block and a connecting rod, one end of the strutting rod is hinged with the sliding block through a first hinging shaft, the other end of the strutting rod is hinged with the strutting mouth through a second hinging shaft, the first hinging shaft is parallel to the second hinging shaft, one end of the sliding block, which is far away from the strutting rod, is hinged with the connecting rod, a support is arranged between the strutting part and the holding part, one end of the support is provided with a sliding groove which is adaptive to the sliding block, the other end of the support is provided with a dodging groove which is adaptive to the connecting rod, the dodging groove is communicated with the sliding groove, the length directions of the sliding groove and the dodging groove are all parallel to the axial lead of the, the right side grip handle struts the connecting rod on the unit articulated with another one, the middle part of left side grip handle is articulated through the middle part of third articulated shaft and right side grip handle, the one end that the support was kept away from to left side grip handle is equipped with the limiting plate, the limiting plate is articulated through fourth articulated shaft and left grip handle, be equipped with the torsional spring on the fourth articulated shaft, the one end and the left side grip handle of torsional spring are connected, and the other end and limiting plate connection, be equipped with a plurality of locking hole on the limiting plate, the one end that the support was kept away from to right side grip handle is equipped with the wedge locking piece that suits with the locking hole, the inclined plane of wedge locking piece is located one side that wedge locking piece.

Preferably, the opening mouth is elastic U-shaped frame, the open end of elastic U-shaped frame is equipped with the locking screw, the one end that locking screw was kept away from to elastic U-shaped frame is articulated through second articulated shaft and vaulting pole.

Preferably, the outer wall of the support is provided with a silica gel pad.

Preferably, a clamping groove is formed in one side, away from the left holding handle, of the wedge-shaped locking block.

Preferably, the inner side of the left holding handle is provided with a left reset elastic sheet, the inner side of the right holding handle is provided with a right reset elastic sheet, and one end of the left reset elastic sheet, which is far away from the left holding handle, abuts against one end of the right reset elastic sheet, which is far away from the right holding handle.

Preferably, one end of the locking hole close to the left holding handle is provided with an inclined slide slope.

Compared with the prior art, the invention has the beneficial effects that:

the invention utilizes the holding part to drive the slide blocks to move, when the holding part is held tightly, the left holding handle and the right holding handle rotate relatively around the third hinge shaft, the slide blocks are driven by the connecting rods to move, so that the distance between the two slide blocks is reduced, the slide blocks drive the stay bars to move, the stay bars drive the opening mouths to move, the interspinous process of lumbar vertebrae can be effectively opened, the lumbar intervertebral space is enlarged, the torsional spring gives a torque to the limiting plate to point to the left holding handle, so that the included angle between the limiting plate and the left holding handle always keeps a reduced trend, the limiting plate is ensured to be tightly abutted against the bottom end of the right holding handle, when the holding part is held tightly, along with the reduction of the distance between the bottom end of the left holding handle and the bottom end of the right holding handle, the wedge-shaped locking blocks automatically slide into the corresponding locking holes, and the distance between the bottom end of the left holding handle and the, thereby fix the distance between two distraction mouths, automatic locking when strutting the lumbar vertebrae spinous process of neighbouring section, can simplify medical personnel's operation process, reduce medical personnel's wrist burden, alleviate patient's misery.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of a pedestal;

FIG. 3 is a schematic view of the construction of the wedge lock.

The reference numbers in the drawings:

1. a distraction unit; 11. opening the mouth; 12. a stay bar; 13. a slider; 14. a connecting rod; 15. a first hinge shaft; 16. a second hinge shaft; 17. a locking screw;

2. a grip portion; 21. a left gripping handle; 22. a right grip handle; 23. a third hinge shaft; 24. a limiting plate; 25. a fourth hinge shaft; 26. a torsion spring; 27. a locking hole; 28. a wedge-shaped locking block;

3. a support; 31. a chute; 32. an avoidance groove; 33. a silica gel pad;

41. a card slot; 42. a left reset spring plate; 43. a right reset spring plate; 44. and (5) slope landslide.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.

Example 1: as shown in the attached drawings 1 and 2, the distraction device for the lumbar spinous process comprises a distraction part and a holding part 2, the expanding part comprises two expanding units 1, the holding part 2 comprises a left holding handle 21 and a right holding handle 22, the opening unit 1 comprises an opening nozzle 11, a stay bar 12, a slide block 13 and a connecting rod 14, one end of the stay bar 12 is hinged with the slide block 13 through a first hinge shaft 15, the other end is hinged with the opening nozzle 11 through a second hinge shaft 16, the opening nozzle 11 can adopt an arc-shaped plate, preferably, the opening mouth 11 is an elastic U-shaped frame, the opening end of the elastic U-shaped frame is provided with a locking screw 17, one end of the elastic U-shaped frame, which is far away from the locking screw 17, is hinged with the support rod 12 through the second hinge shaft 16, and the opening mouth 11 can be firmly fixed on the spinous process of the lumbar vertebra by using the locking screw 17, so that the opening mouth 11 is prevented from falling off from the spinous process of the lumbar vertebra in the opening process. The first hinge shaft 15 is parallel to the second hinge shaft 16, one end of the sliding block 13, which is far away from the stay bar 12, is hinged to the connecting rod 14, a support 3 is arranged between the opening part and the holding part 2, and the support 3 can provide support for the opening part. Preferably, the silica gel pad 33 is arranged on the outer wall of the support 3, the support 3 can be directly placed on the body of a patient when the support is used, the burden of the wrist part caused by holding the medical care personnel with the wrist-mounted medical care device can be reduced, and the support 3 can be prevented from wearing the skin of the patient by sticking the silica gel pad 33 on the outer wall of the support 3. The one end of support 3 is equipped with the spout 31 that suits with slider 13, and the other end is equipped with dodges groove 32 that suits with connecting rod 14, dodge groove 32 and spout 31 intercommunication, spout 31, the length direction who dodges groove 32 all are parallel with the axial lead of first articulated shaft 15, and vaulting pole 12 can rotate round first articulated shaft 15, can adjust the contained angle between vaulting pole 12 and the support 3 when using, convenient to use. The left holding handle 21 is hinged to the connecting rod 14 on one of the expanding units 1, the right holding handle 22 is hinged to the connecting rod 14 on the other expanding unit 1, the middle of the left holding handle 21 is hinged to the middle of the right holding handle 22 through a third hinge shaft 23, and the left holding handle 21 and the right holding handle 22 are mirror images of each other. When the holding part is gripped, the left holding handle 21 and the right holding handle 22 rotate relatively around the third hinge shaft 23, the connecting rod 14 drives the sliding blocks 13 connected with the left holding handle and the right holding handle to move, so that the distance between the two sliding blocks 13 is reduced, the sliding blocks 13 drive the support rods 12 to move, the support rods 12 drive the opening mouths 11 to move, the lumbar interspinous process can be effectively opened, and the lumbar intervertebral space is enlarged. A limiting plate 24 is arranged at one end, far away from the support 3, of the left holding handle 21, the limiting plate 24 is hinged to the left holding handle 21 through a fourth hinged shaft 25, two hinged lugs are arranged on the limiting plate 24 and the left holding handle 21, a torsion spring 26 is arranged on the fourth hinged shaft 25, the torsion spring 26 is sleeved on the fourth hinged shaft 25, one end of the torsion spring 26 is inserted into the left holding handle 21, the other end of the torsion spring 26 is inserted into the limiting plate 24 and connected with the limiting plate 24, a plurality of locking holes 27 are formed in the limiting plate 24 along the length direction of the limiting plate 24, a wedge-shaped locking block 28 corresponding to the locking holes 27 is welded at one end, far away from the support 3, of the right holding handle 22, the inclined surface of the wedge-shaped locking block 28 is located at one side, close to the left holding handle 21, of the limiting plate 24 is always given by the torsion spring 26 in the using process, so that the included angle between the, guarantee limiting plate 24 and the inseparable butt in bottom of right side handle 22, when holding the portion of gripping, along with the reduction of the distance between the bottom of left side handle 21 and the bottom of right side handle 22, wedge locking piece 28 is automatic to slide in corresponding locking hole 27, fix the distance between the bottom of left side handle 21 and the bottom of right side handle 22, thereby fixed two distances between propping open mouth 11, automatic locking when propping open the lumbar vertebrae spinous process of adjacent section, medical personnel's operation process can be simplified, reduce medical personnel's wrist burden, alleviate patient's misery.

Example 2: on the basis of embodiment 1, as shown in fig. 3, in order to ensure the stability of the spreading of the spinous processes of the lumbar vertebrae, a clamping groove 41 is formed in one side of the wedge-shaped locking block 28, which is away from the left holding handle 21, and the height of the clamping groove 41 is slightly larger than the thickness of the limiting plate 24. after the wedge-shaped locking block 28 enters the locking hole 27, due to the reaction force of the spinous processes of the lumbar vertebrae, the wedge-shaped locking block 28 moves to the right, and the right end of the locking hole 27 is clamped into the clamping groove 41, so that the wedge-shaped locking block 28 can. In order to facilitate the quick reset of the portion of gripping 2, the inboard of left side gripping handle 21 is equipped with left shell fragment 42 that resets, the inboard of right side gripping handle 22 is equipped with right shell fragment 43 that resets, the one end that left side gripping handle 21 was kept away from to left side shell fragment 42 resets and the one end that right side gripping handle 22 was kept away from to right shell fragment 43 that resets are reset on a left side support and hold, can be convenient for grip portion 2 fast reset when not atress, and can provide thrust in the right-hand member card income draw-in groove 41 for locking hole 27, prevent effectively that wedge locking piece 28 from accidentally droing from locking hole 27, guarantee the stability of strutting. In order to facilitate the adjustment of the spreading distance, an inclined ramp 44 is arranged at one end of the locking hole 27 close to the left holding handle 21, and the inclined ramp 44 can make the wedge-shaped locking block 28 enter the next locking hole 27 more labor-saving and is convenient to adjust.

Claims

1. The utility model provides a strut apparatus for lumbar vertebrae spinous process position, includes strut portion, the portion of gripping (2), strut portion includes that two strut unit (1), the portion of gripping (2) include left gripping handle (21), right gripping handle (22), its characterized in that: the opening unit (1) comprises an opening mouth (11), a stay bar (12), a sliding block (13) and a connecting rod (14), one end of the stay bar (12) is hinged with the sliding block (13) through a first hinged shaft (15), the other end of the stay bar (12) is hinged with the opening mouth (11) through a second hinged shaft (16), the first hinged shaft (15) is parallel to the second hinged shaft (16), one end, far away from the stay bar (12), of the sliding block (13) is hinged with the connecting rod (14), a support (3) is arranged between the opening part and the holding part (2), one end of the support (3) is provided with a sliding groove (31) matched with the sliding block (13), the other end of the support is provided with an avoiding groove (32) matched with the connecting rod (14), the avoiding groove (32) is communicated with the sliding groove (31), and the length direction of the sliding groove (31) and the avoiding groove (32) is parallel to the axial lead of the first hinged shaft (15), the left holding handle (21) is hinged with one of the holding handles to prop up the connecting rod (14) on the unit (1), the right holding handle (22) is hinged with the other holding handle (14) on the unit (1), the middle part of the left holding handle (21) is hinged with the middle part of the right holding handle (22) through a third hinged shaft (23), one end of the left holding handle (21) far away from the support (3) is provided with a limiting plate (24), the limiting plate (24) is hinged with the left holding handle (21) through a fourth hinged shaft (25), the fourth hinged shaft (25) is provided with a torsional spring (26), one end of the torsional spring (26) is connected with the left holding handle (21), the other end of the torsional spring is connected with the limiting plate (24), the limiting plate (24) is provided with a plurality of locking holes (27), one end of the right holding handle (22) far away from the support (3) is provided with a wedge-shaped locking block (28) adapting to the locking hole (27, the inclined surface of the wedge-shaped locking block (28) is positioned on one side of the wedge-shaped locking block (28) close to the left holding handle (21).

2. A distraction instrument for the spinous processes of lumbar vertebrae according to claim 1, wherein: the opening mouth (11) is elastic U-shaped frame, the open end of elastic U-shaped frame is equipped with locking screw (17), the one end that locking screw (17) were kept away from to elastic U-shaped frame is articulated with vaulting pole (12) through second articulated shaft (16).

3. A distraction instrument for the spinous processes of lumbar vertebrae according to claim 1, wherein: and a silica gel pad (33) is arranged on the outer wall of the support (3).

4. A distraction instrument for the spinous processes of lumbar vertebrae according to claim 1, wherein: and a clamping groove (41) is formed in one side, away from the left holding handle (21), of the wedge-shaped locking block (28).

5. A distraction instrument for the spinous processes of lumbar vertebrae according to claim 1, wherein: the inner side of the left holding handle (21) is provided with a left reset elastic sheet (42), the inner side of the right holding handle (22) is provided with a right reset elastic sheet (43), and one end, away from the left holding handle (21), of the left reset elastic sheet (42) is abutted against one end, away from the right holding handle (22), of the right reset elastic sheet (43).

6. A distraction instrument for the spinous processes of lumbar vertebrae according to claim 1, wherein: one end of the locking hole (27) close to the left holding handle (21) is provided with an inclined slide slope (44).