CN219126563U - Bone fracture plate pressurizing forceps - Google Patents
Bone fracture plate pressurizing forceps Download PDFInfo
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- CN219126563U CN219126563U CN202320009149.0U CN202320009149U CN219126563U CN 219126563 U CN219126563 U CN 219126563U CN 202320009149 U CN202320009149 U CN 202320009149U CN 219126563 U CN219126563 U CN 219126563U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The utility model discloses a bone plate pressurizing clamp, which belongs to the technical field of medical equipment, and comprises a first clamp body and a second clamp body which are connected, wherein the front end of the first clamp body is provided with a positioning connection part for connecting a cortical bone screw which is positioned in a pressurizing hole or a sliding hole at one end of a fracture line of a bone plate but is not locked, and the front end of the second clamp body is provided with an inserting and abutting part for being inserted into a locking hole of the bone plate. The bone plate pressurizing pliers can adjust the pressurizing distance after the bone plate is fixed on the bone, are convenient to operate, do not need to implant a plurality of cortical bone screws on the bone plate, reduce the working strength of medical staff and relieve the pain of patients.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a bone plate pressurizing clamp.
Background
Clinical orthopedic surgery is generally classified into four stages from simple to complex: primary surgery mainly refers to debridement, reduction of limb fracture dislocation surgery, or bone traction surgery; the secondary operation mainly refers to traumatic tendon repair, simple open fracture treatment and simple operation trauma treatment; the three-stage operation mainly refers to complex limb, diaphyseal fracture internal fixation operation, intra-articular fracture operation, complex hand trauma treatment, bone orthopedic operation and large joint focus removal operation; the four-stage operation mainly refers to operations of cervical vertebra parts, such as anterior/posterior operations of cervical vertebra, semi-joint/total joint replacement, revision, scoliosis orthopaedics and the like.
In the fracture incision reduction internal fixation operation, the fracture position is usually exposed through anesthesia and an opening, then the fracture position is temporarily reduced and fixed by using fracture compression fixing forceps, finally the fracture position is fixed by using an internal fixation implant bone fracture plate, and a cortical bone screw is implanted into a compression hole on the bone fracture plate to obtain an ideal compression reduction effect. The prior fracture pressurization fixing forceps are various, as disclosed in patent application CN205433854U, and comprise an upper forceps handle and a lower forceps handle which are connected through a cross hinge, the front ends of the upper forceps handle and the lower forceps handle are forceps beak parts, a locking device for fixing the positions of the upper forceps handle and the lower forceps handle is arranged between the upper forceps handle and the lower forceps handle, and the forceps beak parts are cylindrical forceps beak parts.
According to research, the conventional fracture pressurization fixing clamp is generally only suitable for temporarily resetting and fixing the fracture position before the bone plate is implanted, and when the bone plate is initially fixed on the bone but the pressurization and resetting effect is not ideal (namely the interval between two broken ends of the bone is still large), the conventional fracture pressurization fixing clamp cannot adjust the pressurization distance due to the existence of the bone plate, and the bone plate needs to be taken down and the fracture pressurization fixing clamp is reused for temporarily resetting and fixing the fracture position.
Another solution is to implant a plurality of cortical screws directly on the bone plate to obtain the desired compression reduction effect, however, because of the different fracture reduction conditions, the compression distance of each compression hole on the bone plate is limited, and in the case of an unsatisfactory reduction effect, a plurality of cortical screws may need to be implanted on the bone plate to obtain the desired compression reduction effect, which brings inconvenience to the doctor and increases the pain of the patient.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the bone plate pressurizing forceps which can adjust the pressurizing distance after the bone plate is fixed on bones and is convenient to operate.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model provides a bone plate pressurization pincers, includes the first pincers body and the second pincers body of connection, the front end of the first pincers body is equipped with the location connecting portion that is used for connecting the cortex bone screw that is located the compression hole or the sliding hole of bone plate at fracture line one end but does not lock, the front end of the second pincers body is equipped with the grafting portion of leaning on that is used for inserting in the locking hole of bone plate.
Further, the positioning connecting part is detachably connected to the front end of the first forceps body and is a positioning rod used for inserting a cortical bone screw instrument driving part to position.
Further, the front end of the first clamp body is provided with a plug hole, and the rear end of the positioning rod is provided with a plug post matched with the plug hole.
Further, the front end of the first clamp body is provided with a locking device for locking the plug-in column in the plug-in hole, wherein:
the rear end of the plug-in column is provided with a steel ball groove, a through steel ball hole is formed in the inner side wall of the plug-in hole at a position corresponding to the steel ball groove, the locking device comprises steel balls which are positioned in the steel ball hole and matched with the steel ball groove, and a pressing sleeve which is slidably connected with the front end of the first clamp body and used for driving the steel balls, and a steel ball pushing part and a steel ball avoiding groove are arranged on the inner side wall of the pressing sleeve.
Further, a first step is arranged at the front end of the first clamp body, a second step is arranged on the inner side wall of the rear part of the pressing sleeve, a spring is sleeved in the pressing sleeve at the front end of the first clamp body, the upper end of the spring abuts against the first step, and the lower end of the spring abuts against the second step;
and/or the front end of the first clamp body is provided with a clamping groove in front of the pressing sleeve, and a retainer ring matched with the front end surface of the pressing sleeve is arranged in the clamping groove;
and/or the side wall of the plug hole is provided with a limiting block.
Further, be equipped with on the locating lever be used for with the preceding terminal surface matched with of the first pincers body annular fender platform, wherein:
the rear surface of the annular baffle table is a plane;
and/or the front surface of the annular baffle is a conical surface which gradually decreases from back to front.
Further, the positioning connecting part is a positioning sleeve used for being sleeved into the head of the cortical bone screw to position.
Further, the positioning sleeve is a C-shaped positioning sleeve with an opening facing away from the second clamp body.
Further, the plugging and abutting part is a plugging and abutting rod integrally arranged at the front end of the second clamp body.
Further, the plugging abutting rod is inclined outwards, and the inclination angle is 5-30 degrees;
and/or the outer surface of the plugging abutting rod is provided with a rubber layer.
The utility model has the following beneficial effects:
the bone plate pressurizing forceps comprise a first forceps body and a second forceps body which are connected, wherein the front end of the first forceps body is provided with a positioning connection part used for connecting a cortical bone screw which is positioned in a pressurizing hole or a sliding hole at one end of a fracture line of the bone plate but is not locked, and the front end of the second forceps body is provided with an inserting and abutting part used for being inserted into a locking hole of the bone plate. The bone plate pressurizing pliers can adjust the pressurizing distance after the bone plate is fixed on bones, and are convenient to operate.
Drawings
FIG. 1 is a schematic view of the overall structure of a bone plate compression forceps of the utility model;
FIG. 2 is a partial cross-sectional view of the left hand first clamp body of FIG. 1;
FIG. 3 is a schematic diagram showing the overall structure of the bone plate compression forceps of the utility model;
fig. 4 is a partial cross-sectional view of the left hand first clamp body of fig. 3.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The utility model provides a bone plate pressurizing clamp, which comprises a first clamp body 1 and a second clamp body 2 which are connected (specifically can be hinged by a pin 10), wherein the front end of the first clamp body 1 is provided with a positioning connecting part 11 for connecting a cortical bone screw which is positioned in a pressurizing hole or a sliding hole at one end of a fracture line of a bone plate but is not locked, and the front end of the second clamp body 2 is provided with an inserting abutting part 21 for being inserted into a locking hole of the bone plate.
When the bone plate is initially fixed at the bone, but the pressurizing and resetting effects are not ideal (namely, the distance between two ends of the bone is larger), the locking screw is implanted into the locking hole at one end of the fracture line of the bone plate to temporarily fix the bone plate and the bone, and then the cortical bone screw is implanted into the pressurizing hole or the sliding hole at the other end of the fracture line of the bone plate, but not completely locked, so that the cortical bone screw can slide in the pressurizing hole or the sliding hole of the bone plate, the positioning connecting part 11 at the front end of the first clamp body 1 of the bone plate pressurizing clamp is connected with the cortical bone screw, the inserting abutting part 21 at the front end of the second clamp body 2 is inserted into the periphery of the pressurizing hole or the sliding hole and is far away from the locking hole of the locking screw, and then the first clamp body 1 and the second clamp body 2 are pressed to move the bone plate.
The bone plate pressurizing forceps comprise a first forceps body and a second forceps body which are connected, wherein the front end of the first forceps body is provided with a positioning connection part used for connecting a cortical bone screw which is positioned in a pressurizing hole or a sliding hole at one end of a fracture line of the bone plate but is not locked, and the front end of the second forceps body is provided with an inserting and abutting part used for being inserted into a locking hole of the bone plate. The bone plate pressurizing pliers can adjust the pressurizing distance after the bone plate is fixed on bones, are convenient to operate, and can manually adjust the pressurizing position only by pre-implanting a cortical bone screw so as to obtain an ideal pressurizing effect.
Depending on the structural form of the positioning connection 11, the present utility model can have the following embodiments:
example 1
As shown in fig. 1-2, the positioning connection portion 11 is preferably detachably connected to the front end of the first forceps body 1 and is a positioning rod for inserting the driving portion of the cortical screw device for positioning, the detachably connected positioning rod can be developed in different specifications/types, and can be developed and adapted according to the difference of the driving portion (i.e. the rotating portion) of the head portion of the cortical screw device, and the positioning connection portion 11 in different specifications/types can be replaced in the operation to adapt to the driving portion of the cortical screw device, so that the stability and the firmness are improved. When in use, a locating rod matched with the cortical bone screw instrument driving part is selected and arranged at the front end of the first forceps body 1, and then the locating rod at the front end of the first forceps body 1 is inserted into the instrument driving part (which can be a plum blossom hole, a hexagonal hole and the like) of the cortical bone screw which is positioned in the compression hole or the sliding hole of the bone plate but is not locked.
In order to detachably connect the positioning rod to the front end of the first clamp body 1, the utility model preferably adopts the following structural form:
as shown in fig. 2, the front end of the first clamp body 1 may be provided with a plugging hole 12, and the rear end of the positioning rod is provided with a plugging column 13 matched with the plugging hole 12. When in use, the plug-in post 13 of the positioning rod is inserted into the plug-in hole 12 at the front end of the first clamp body 1, thereby facilitating the quick replacement of the positioning rod. The socket 12 and the socket post 13 may each be D-shaped to prevent the socket post 13 from rotating within the socket 12.
In a modified embodiment, as shown in fig. 3 to 4, in order to facilitate locking the plug post 13 in the plug hole 12 and to enable quick locking and unlocking, the front end of the first clamp body 1 may be provided with a locking device for locking the plug post 13 in the plug hole 12, wherein:
the rear end of the plug-in column 13 is provided with a steel ball groove 131, the inner side wall of the plug-in hole 12 is provided with a steel ball hole penetrating through the steel ball groove 131, the locking device comprises a steel ball 15 which is positioned in the steel ball hole and matched with the steel ball groove 131, and a pressing sleeve 16 which is connected at the front end of the first clamp body 1 in a sliding manner and used for driving the steel ball 15, and the inner side wall of the pressing sleeve 16 is provided with a steel ball pushing part 161 and a steel ball avoiding groove 162.
Further, the front end of the first pliers body 1 may be provided with a first step, the inner side wall of the rear portion of the pressing sleeve 16 is provided with a second step, the front end of the first pliers body 1 is sleeved with a spring 17 in the pressing sleeve 16, the upper end of the spring 17 abuts against the first step, and the lower end abuts against the second step, so that the pressing sleeve 16 is convenient to reset.
At this time, the use process of the locking device in the present utility model is referred to as follows:
when unlocking is needed, the pressing sleeve 16 is driven to slide backwards at the front end of the first clamp body 1, the spring 17 is stressed and compressed, so that the steel ball avoiding groove 162 on the inner side wall of the pressing sleeve 16 slides to the steel ball hole, the steel ball 15 can return to the steel ball avoiding groove 162 and does not protrude out of the inner side wall of the inserting hole 12, and the inserting column 13 can be smoothly inserted into/pulled out; when locking is needed, the pressing sleeve 16 is loosened, the spring 17 is relaxed, the pressing sleeve 16 slides forwards at the front end of the first clamp body 1 under the action of the elastic force of the spring 17, the steel ball pushing part 161 on the inner side wall of the pressing sleeve 16 slides to the steel ball hole, and the steel balls 15 protrude out of the inner side wall of the inserting hole 12 under the extrusion of the steel ball pushing part 161 and are clamped into the steel ball grooves 131 of the inserting column 13, so that the inserting column 13 is locked in the inserting hole 12.
The front end of the first clamp body 1 can be provided with a clamping groove in front of the pressing sleeve 16, and a retainer ring 18 matched with the front end surface of the pressing sleeve 16 is arranged in the clamping groove so as to prevent the pressing sleeve 16 from falling out of the first clamp body 1. The side wall of the plug hole 12 can be provided with a limiting block 19 to limit the plug post 13, and the plug post 13 can only be inserted into the plug hole 12 at a fixed position and angle through the limiting block 19 and cannot rotate after being inserted.
Further, as shown in fig. 2, an annular blocking table 14 for matching with the front end surface of the first clamp body 1 may be provided on the positioning rod, so as to conveniently limit the depth of the inserting post 13 into the inserting hole 12. The rear surface of the annular baffle 14 may be planar so as to be matched with the front end surface of the first clamp body 1; the front surface of the annular abutment 14 may be tapered from rear to front.
Example 2 (not shown)
The positioning connection 11 may be a positioning sleeve for nesting into the head of a cortical screw for positioning. When in use, the positioning sleeve at the front end of the first forceps body 1 is sleeved into the head of the non-locked cortical bone screw which is positioned in the pressurizing hole or the sliding hole of the bone plate.
Further, the positioning sleeve can be a C-shaped positioning sleeve with an opening facing away from the second clamp body, so that the cortical bone screw with different specifications/models can be adapted, repeated replacement is avoided, and the use is more convenient.
In the above embodiment, as shown in fig. 1, the insertion abutment portion 21 may be an insertion abutment lever integrally provided at the front end of the second pincer body 2. Further, the insertion abutment rod may be inclined outward by an angle of 5-30 degrees, e.g., 8 degrees, 12 degrees, 14 degrees, 18 degrees, 20 degrees, etc., to facilitate insertion of the insertion abutment rod into the locking hole of the bone plate, and prevent the insertion abutment rod from being removed from the locking hole of the bone plate during manual adjustment of the compression distance. The outer surface of the plug-in abutment rod may be provided with a rubber layer to avoid damage to the locking hole of the bone plate by the plug-in abutment rod.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. The bone plate pressurizing clamp is characterized by comprising a first clamp body and a second clamp body which are connected, wherein the front end of the first clamp body is provided with a positioning connection part used for connecting a cortical bone screw which is positioned in a pressurizing hole or a sliding hole at one end of a fracture line of a bone plate but is not locked, and the front end of the second clamp body is provided with an inserting and abutting part used for being inserted into a locking hole of the bone plate.
2. The bone plate compression forceps of claim 1 wherein the positioning connection is removably attached to the front end of the first forceps body and is a positioning rod for insertion into a cortical bone screw instrument drive for positioning.
3. The bone plate compression forceps of claim 2 wherein the front end of the first forceps body is provided with a socket and the rear end of the locating rod is provided with a socket post which mates with the socket.
4. The bone plate compression forceps of claim 3, wherein a front end of the first forceps body is provided with a locking device for locking the peg within the peg hole, wherein:
the rear end of the plug-in column is provided with a steel ball groove, a through steel ball hole is formed in the inner side wall of the plug-in hole at a position corresponding to the steel ball groove, the locking device comprises steel balls which are positioned in the steel ball hole and matched with the steel ball groove, and a pressing sleeve which is slidably connected with the front end of the first clamp body and used for driving the steel balls, and a steel ball pushing part and a steel ball avoiding groove are arranged on the inner side wall of the pressing sleeve.
5. The bone plate pressurizing clamp according to claim 4, wherein a first step is arranged at the front end of the first clamp body, a second step is arranged on the inner side wall of the rear part of the pressing sleeve, a spring is sleeved in the pressing sleeve at the front end of the first clamp body, the upper end of the spring abuts against the first step, and the lower end of the spring abuts against the second step;
and/or the front end of the first clamp body is provided with a clamping groove in front of the pressing sleeve, and a retainer ring matched with the front end surface of the pressing sleeve is arranged in the clamping groove;
and/or the side wall of the plug hole is provided with a limiting block.
6. The bone plate compression forceps of claim 3, wherein the positioning rod is provided with an annular abutment for mating with a front face of the first forceps body, wherein:
the rear surface of the annular baffle table is a plane;
and/or the front surface of the annular baffle is a conical surface which gradually decreases from back to front.
7. The bone plate compression forceps of claim 1 wherein the locating connection is a locating sleeve for nesting into the head of a cortical screw for locating.
8. The bone plate compression forceps of claim 7 wherein the locating sleeve is a C-shaped locating sleeve with an opening facing away from the second forceps body.
9. The bone plate compression forceps of claim 1 wherein the socket abutment is a socket abutment rod integrally provided at the front end of the second forceps body.
10. The bone plate compression forceps of claim 9 wherein the peg-on abutment lever is angled outwardly at an angle of 5-30 degrees;
and/or the outer surface of the plugging abutting rod is provided with a rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320009149.0U CN219126563U (en) | 2023-01-04 | 2023-01-04 | Bone fracture plate pressurizing forceps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320009149.0U CN219126563U (en) | 2023-01-04 | 2023-01-04 | Bone fracture plate pressurizing forceps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219126563U true CN219126563U (en) | 2023-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320009149.0U Active CN219126563U (en) | 2023-01-04 | 2023-01-04 | Bone fracture plate pressurizing forceps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219126563U (en) |
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2023
- 2023-01-04 CN CN202320009149.0U patent/CN219126563U/en active Active
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