CN210697707U

CN210697707U - Intervertebral bone grafting opening forceps

Info

Publication number: CN210697707U
Application number: CN201920542142.9U
Authority: CN
Inventors: 于海洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-21
Filing date: 2019-04-21
Publication date: 2020-06-09
Anticipated expiration: 2029-04-21

Abstract

An intervertebral bone grafting spreading forceps relates to the technical field of surgical medical instruments and comprises a right forceps handle, a left forceps handle, a closing elastic sheet and a positioning rack, wherein the right forceps handle and the left forceps handle are hinged through a cheek shaft screw and divided into a front forceps head part and a rear handle part; the head parts of the right forceps handle and the left forceps handle are respectively provided with an arc-shaped transmission arm which is bent towards the front lower part, the front ends of the two transmission arms are respectively provided with an obliquely arranged distraction inserting plate, and the distraction inserting plate is provided with a front end opening bone grafting groove. The utility model has the advantages of easy operation, time saving and labor saving, wide visual field, large operation space, convenient and fast bone grafting and the like, and is beneficial to operation.

Description

Intervertebral bone grafting opening forceps

Technical Field

The utility model relates to a surgical medical instrument technical field is an easy operation, labour saving and time saving particularly, and the field of vision is wide, operating space is big, does benefit to the operation, implants convenient and fast's intervertebral bone grafting distraction pincers.

Background

Spine fusion surgery is the conventional treatment means in the field of spine surgery at present, and is widely applied to the treatment of spine diseases such as degenerative intervertebral disc disease, spine slippage, spinal stenosis, spinal deformity and vertebral body fracture, and in recent years, along with the continuous improvement of internal fixation instruments, the application of novel bone grafting substitute materials, the relaxation of operation indications and the rapid increase of spine fusion surgery.

At present, the main treatment of spine surgery mainly takes autologous bone tissue for bone grafting, and has the advantages that bone cells in the autologous bone tissue are survival autologous bone cells, the bioactivity is good, the bone fusion is facilitated, the autologous bone structure and the biomechanical characteristics meet the bone grafting requirement, the rejection is avoided, the biocompatibility is good, and allogeneic bone is adopted for bone grafting in partial clinical cases to supplement autologous bone deficiency and the like; at present, the bone grafting parts for clinical spinal fusion are as follows: intervertebral grafting, transverse process grafting, vertebral plate grafting, facet articular process, interspinous process grafting, etc.

No matter what kind of bone grafting material is adopted, it is the clinical biggest demand that convenient, fast, effective and accurate corresponding position is planted with bone grafting material, and current intervertebral bone grafting distraction device is equipped with the support slide bar, is equipped with two gliding slides from top to bottom on the support slide bar, is equipped with on every slide and fixes its locking device on the support slide bar, is equipped with the distraction picture peg that is parallel to each other on two slides respectively. When the device is used, the two sliding seats are slid to enable the two distraction insertion plates to be attached together, then the distraction insertion plates are inserted between two adjacent vertebral bodies needing bone grafting, the sliding seats are moved in opposite directions to drive the two distraction insertion plates to distract the intervertebral disc gap, then the sliding seats are fixed on the distraction sliding rods by the locking device, and distraction of the two adjacent vertebral bodies is completed. The existing intervertebral bone grafting distraction device has the defects of complex operation, time and labor waste, narrow visual field, small operation space, inconvenience for operation and the like.

SUMMERY OF THE UTILITY MODEL

The utility model provides an aim at solving above-mentioned prior art not enough, provide an easy operation, labour saving and time saving, the field of vision is wide, operating space is big, does benefit to the operation, implants convenient and fast's intervertebral bone grafting distraction pincers.

The utility model provides a not enough adopted technical scheme of above-mentioned prior art is:

the intervertebral bone grafting distraction forceps are characterized by comprising a right forceps handle, a left forceps handle, a closing elastic sheet and a positioning rack, wherein the middle parts of the right forceps handle and the left forceps handle are respectively provided with a right forceps cheek and a left forceps cheek which are hinged through a cheek shaft screw, the right forceps cheek and the left forceps handle divide the right forceps handle and the left forceps handle into a front forceps head part and a rear handle part, the closing elastic sheet is arranged between the handle parts of the right forceps handle and the left forceps handle in a U shape, one end of the positioning rack is hinged with the handle part of the right forceps handle or the left forceps handle through a pin, and the rear end of the handle part of the left forceps handle or the right forceps handle is provided with positioning teeth which are meshed with the teeth of the positioning rack; the head parts of the right forceps handle and the left forceps handle are respectively provided with an arc-shaped transmission arm which is bent towards the front lower part, the front ends of the two transmission arms are respectively provided with an obliquely arranged distraction inserting plate, and the distraction inserting plate is provided with a front end opening bone grafting groove.

The utility model discloses in closed shell fragment include left shell fragment and right shell fragment, the rear end of left shell fragment links to each other through the handle portion rear portion of screw with left pincers handle, the rear end of right shell fragment links to each other through the handle portion rear portion of screw with right pincers handle, the preceding tip fixed connection of left shell fragment and right shell fragment. Forming a closed elastic sheet which is U-shaped as a whole.

The utility model discloses in the handle portion of right side pincers handle or left side pincers handle on be equipped with the articulated seat that is the U-shaped, location rack one end is articulated with articulated seat, be equipped with the pressfitting shell fragment on the handle portion of the right side pincers handle of articulated seat front side or left side pincers handle, the pressfitting shell fragment stretch into articulated seat, compress tightly on the terminal surface of the location rack in articulated seat, be equipped with on the terminal surface of the location rack in articulated seat with pressfitting shell fragment complex compress tightly the inclined plane. The pressing elastic sheet is pressed against the pressing inclined plane, and the positioning rack is pressed against the positioning teeth under the action of the elastic force of the pressing elastic sheet; when no external force is applied, the positioning rack is always pressed against the positioning teeth.

The utility model discloses in the picture peg that struts include the connecting plate and insert the board, the connecting plate is by the back wedge that becomes thin gradually to the front, inserts board and connecting plate front side fixed connection, the groove of planting the bone is established on inserting the board, it is equipped with anti-skidding tooth to insert the board front portion.

The transmission arm in the utility model bends downwards by 20 degrees to 90 degrees.

In the utility model, the included angle between the expanding insertion plate and the right and left clamp handles is 20-90 degrees.

In the utility model, the width of the bone grafting groove is 5mm-15mm, and the length of the groove is 5mm-20 mm.

When the utility model is used, firstly, the intervertebral disc is taken out by using tools such as a cutter or a bite clamp, after the side wall of the intervertebral disc is cleaned by using tools such as a spatula, two expanding insertion plates of the intervertebral bone grafting expanding clamp are tightly adhered and closed and then are inserted into the position needing bone grafting in the gap between the centrums 15, the handle parts of the right clamp handle and the left clamp handle are held by hands to apply pressure to the two expanding insertion plates, the head parts of the right clamp handle and the left clamp handle are opened, the expanding insertion plates are driven to separate the two adjacent centrums 15 from the distance needed by bone grafting, the forceps are used for clamping the bone tissues, the bone tissues are placed between the expanded centrums between the two expanding insertion plates, after the bone tissues are fully placed in the bone grafting grooves, the bone tissues are hammered by using a hammering device, the bone tissues are tightly attached without loosening, the bone grafting grooves on the expanding insertion plates can widen the visual field of bone grafting operation, and; then the positioning rack is broken backwards to separate from the positioning teeth, and the opening inserting plate is withdrawn to complete the bone grafting operation. The utility model has the advantages of easy operation, labour saving and time saving, the field of vision is wide, operating space is big, does benefit to the operation, and the bone convenient and fast that plants can pinpoint the position that will plant the bone to conveniently take out after planting the bone.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic bottom view of the structure of fig. 1.

Fig. 3 is a schematic perspective view of the present invention.

Fig. 4 is a schematic view of the structure of the utility model in use.

Detailed Description

The intervertebral bone grafting distraction forceps shown in fig. 1, 2 and 3 are characterized by comprising a right forceps handle, a left forceps handle, a closing elastic sheet and a positioning rack 9, wherein the middle parts of the right forceps handle and the left forceps handle are respectively provided with a right forceps cheek and a left forceps cheek which are hinged through a cheek shaft screw 3, the right forceps handle and the left forceps handle are divided into a front forceps head part 2 and a rear handle part 6 by the right forceps handle and the left forceps handle by the left forceps cheek, and when the handle part 6 of the right forceps handle and the handle part 6 of the left forceps handle are folded by pressing the handle part 6 inwards, the forceps head parts 2 of the right forceps handle and the left forceps handle are separated outwards. The closed elastic sheet is U-shaped and is arranged between the handle parts of the right forceps handle and the left forceps handle, and is used for springing open the handle parts of the right forceps handle and the left forceps handle under the condition of not applying external force, enabling the forceps head parts of the right forceps handle and the left forceps handle to be tightly closed, and as can be seen from fig. 1 and fig. 2, the closed elastic sheet comprises a left elastic sheet 5 and a right elastic sheet 4 which are arc-shaped, the rear end of the left elastic sheet 5 is connected with the rear part of the handle part of the left forceps handle through a screw, the rear end of the right elastic sheet 4 is connected with the rear part of the handle part of the right forceps handle through a screw, the front end parts of the left elastic sheet 5 and the right elastic sheet 4 are fixedly connected, in the embodiment, the front end part of the left elastic sheet is provided with. One end of a positioning rack 9 is hinged with the rear end part of the handle part of the right forceps handle or the left forceps handle through a pin, and the rear end of the handle part of the left forceps handle or the right forceps handle is provided with a positioning tooth 8 which is meshed and matched with the teeth of the positioning rack 9; the head parts of the right forceps handle and the left forceps handle are respectively provided with an arc-shaped driving arm 1 which is bent forwards and downwards, and the driving arms are bent downwards by 20-90 degrees (or the driving arms are in an arc shape with a central angle of 20-90 degrees). The front ends of the two transmission arms 1 are respectively provided with a distraction inserting plate which is obliquely arranged (relative to the right forceps handle and the left forceps handle), and the included angle between the distraction inserting plate and the right forceps handle and the included angle between the distraction inserting plate and the left forceps handle are 20-90 degrees; the distraction inserting plate is provided with a bone grafting groove 13 with an open front end, the width of the bone grafting groove 13 is 5mm-15mm, and the length of the groove is 5mm-20 mm.

The utility model discloses further improve, the handle portion of right side pincers handle or left side pincers handle on be equipped with the articulated seat 7 that is the U-shaped, location rack one end is articulated with articulated seat 7, be equipped with pressfitting shell fragment 10 on the handle portion of the right side pincers handle of articulated seat 7 front side or left side pincers handle, on pressfitting shell fragment 10 stretched into articulated seat, compressed tightly the terminal surface of the location rack in articulated seat, be equipped with on the terminal surface of the location rack in articulated seat with pressfitting shell fragment complex compress tightly the inclined plane. The pressing elastic sheet 10 presses against the pressing inclined plane, and the positioning rack 9 presses against the positioning teeth 8 under the action of the elastic force of the pressing elastic sheet; when no external force is applied, the positioning rack is always pressed against the positioning teeth. Strutting the picture peg include connecting plate 11 and insert board 12, connecting plate 11 is by the wedge of back to preceding tapering, insert board 12 and connecting plate front side fixed connection, insert board and connecting plate integrated into one piece in this embodiment, bone grafting groove 13 is established on inserting board 12, will insert the board and divide into two parts from top to bottom, it is equipped with anti-skidding tooth 14 to insert the board front portion, anti-skidding tooth 14 is equipped with many triangle-shaped sand grips that are parallel to each other for inserting on the anterior lateral surface of board, insert board thickness not increasing, do not influence under the prerequisite in the operation field of vision, play the effect of increase friction. The anti-slip teeth 14 can firmly position the insertion plate on the vertebral body and can not easily slip when in use.

Claims

1. The intervertebral bone grafting distraction forceps are characterized by comprising a right forceps handle, a left forceps handle, a closing elastic sheet and a positioning rack, wherein the middle parts of the right forceps handle and the left forceps handle are respectively provided with a right forceps cheek and a left forceps cheek which are hinged through a cheek shaft screw, the right forceps cheek and the left forceps handle divide the right forceps handle and the left forceps handle into a front forceps head part and a rear handle part, the closing elastic sheet is arranged between the handle parts of the right forceps handle and the left forceps handle in a U shape, one end of the positioning rack is hinged with the handle part of the right forceps handle or the left forceps handle through a pin, and the rear end of the handle part of the left forceps handle or the right forceps handle is provided with positioning teeth which are meshed with the teeth of the positioning rack; the head parts of the right forceps handle and the left forceps handle are respectively provided with an arc-shaped transmission arm which is bent towards the front lower part, the front ends of the two transmission arms are respectively provided with an opening insertion plate which is obliquely arranged, and the opening insertion plate is provided with a bone grafting groove with an open front end.

2. The intervertebral bone grafting distraction forceps of claim 1, wherein the closed elastic sheet comprises a left elastic sheet and a right elastic sheet, the rear end of the left elastic sheet is connected with the rear part of the handle part of the left forceps handle through a screw, the rear end of the right elastic sheet is connected with the rear part of the handle part of the right forceps handle through a screw, and the front end parts of the left elastic sheet and the right elastic sheet are fixedly connected.

3. The intervertebral bone grafting spreading forceps as claimed in claim 1 or 2, characterized in that the handle portion of the right forceps handle or the left forceps handle is provided with a U-shaped hinge seat, one end of the positioning rack is hinged to the hinge seat, the handle portion of the right forceps handle or the left forceps handle at the front side of the hinge seat is provided with a pressing elastic sheet, the pressing elastic sheet extends into the hinge seat and is pressed on the end face of the positioning rack in the hinge seat, and the end face of the positioning rack in the hinge seat is provided with a pressing inclined face matched with the pressing elastic sheet.

4. The intervertebral bone grafting spreading forceps as claimed in claim 3, wherein the spreading insertion plate includes a connecting plate and an insertion plate, the connecting plate is wedge-shaped and gradually becomes thinner from back to front, the insertion plate is fixedly connected with the front side of the connecting plate, the bone grafting groove is formed in the insertion plate, and the front part of the insertion plate is provided with anti-slip teeth.

5. The distractor clamp of claim 4 wherein the actuator arm is angled downwardly between 20 ° and 90 °.

6. The intervertebral bone grafting spreading forceps according to claim 4, wherein the angle between the spreading insertion plate and the right forceps handle and the angle between the spreading insertion plate and the left forceps handle are 20-90 degrees.

7. The intervertebral bone grafting spreading forceps of claim 5 or 6, wherein the bone grafting grooves have a groove width of 5mm to 15mm and a groove length of 5mm to 20 mm.