CN218792463U - Fixing clamp for clamping tibia and bone lamella - Google Patents

Abstract

The utility model discloses a fixing clamp for clamping tibia and bone lamella, which comprises a first clamp body and a second clamp body which are hinged in a crossing way; one end of the first clamp body is provided with a first handheld part, and the other end of the first clamp body is provided with a first clamping arm; one end of the second clamp body is provided with a second handheld part, and the other end of the second clamp body is provided with a second clamping arm; wherein the first hand-held part and the second hand-held part are arranged oppositely to form a hand-held component of the fixed clamp, and the first clamping arm and the second clamping arm are arranged oppositely to form a jaw component of the fixed clamp; one of the first clamping arm and the second clamping arm is matched with the tibia and the head side structure of the bone plate in a profiling way, and the other clamping arm is matched with the tibia and the tail side structure of the bone plate in a profiling way. This fixing clamp, owing to keep silent the subassembly and adopt the imitative design, consequently can guarantee to the fixed firm nature of shin bone and lamella centre gripping, be favorable to making the lamella keep in the position of shin bone central authorities, effectively avoided the displacement of lamella and leaded to the problem of postoperative complication.

Description

Fixing clamp for clamping tibia and bone lamella

Technical Field

The utility model relates to the technical field of medical equipment, more specifically say, relate to a fixed pincers that are used for centre gripping shin bone and hone lamella.

Background

Anterior cruciate ligament disease is the most common cause of dog lameness. In surgery for treating anterior cruciate ligament disease, the most common procedure is Tibial Plateau Leveling Osteotomy (TPLO), in which the proximal tibia is Osteotomy cut and fixed with the TPLO plate after rotation. After the plate is placed in the desired position, it is usually secured with a k-wire through a hole in the plate or with a bone holder and then screws are placed.

The bone plate displacement of different degrees often happens by means of the fixation of the bone holding forceps, so that the placement position of the bone plate displayed by the X-ray film after operation is not ideal enough. The plate position being either cephalad or caudal to the tibia can lead to complications by weakening the screw's grip on the bone.

In conclusion, the problem that how to solve the problem that the bone plate is easy to displace when the fixing clamp is used for assisting and fixing the tibia and the bone plate to cause postoperative complications is a problem to be urgently solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a fixed pincers for centre gripping shin bone and hone lamella to the problem that the hone lamella aversion appears easily and leads to postoperative complication when adopting fixed pincers to supplementary fixed shin bone and hone lamella to solve.

In order to achieve the above object, the utility model provides a following technical scheme:

a fixing clamp for clamping tibia and bone plate comprises a first clamp body and a second clamp body which are hinged in a crossing manner;

one end of the first clamp body is provided with a first handheld part, and the other end of the first clamp body is provided with a first clamping arm;

one end of the second clamp body is provided with a second holding part, and the other end of the second clamp body is provided with a second clamping arm;

wherein the first and second hand-held portions are arranged opposite one another to form a hand-held assembly of a fixed jaw, and the first and second gripping arms are arranged opposite one another to form a jaw assembly of the fixed jaw; one of the first clamping arm and the second clamping arm is in contour fit with the head side structure of the tibia and the bone plate, and the other clamping arm is in contour fit with the tail side structure of the tibia and the bone plate.

Optionally, the surface of the first clamping arm for matching with the head side structure of the tibia and the bone plate and the surface of the second clamping arm for matching with the tail side structure of the tibia and the bone plate are provided with anti-slip lines.

Optionally, the anti-slip texture is a tooth-like structure.

Optionally, the front end of the first clamping arm and the front end of the second clamping arm both bend towards the direction of the hinge axis of the first forceps body and the second forceps body by a preset angle, so that the bone plate is tightly attached to the bone surface of the tibia and an operation space is avoided.

Optionally, the first and second hand-held portions are finger-ring-shaped.

Optionally, a positioning assembly for positioning the opening angle of the jaw assembly is arranged between the first handheld part and the second handheld part.

Optionally, the positioning assembly includes an arc-shaped rack disposed on the second handheld portion and a ratchet disposed on the first handheld portion, the arc-shaped rack is arranged along a swinging arc of the second handheld portion relative to the first handheld portion, positioning latch teeth arranged in sequence are disposed on the arc-shaped rack, a positioning latch tongue engaged with the positioning latch teeth in a one-way manner is disposed on the ratchet, when the second handheld portion and the first handheld portion are drawn close to each other, the ratchet can slide relative to the arc-shaped rack, and when the second handheld portion and the first handheld portion are far away from each other, the positioning latch tongue is engaged with the positioning latch teeth for locking.

Optionally, the locating component includes set up in arc spout on the first handheld portion and set up in the traveller on the second handheld portion, the arc spout is followed the second handheld portion is relative the swing arc of first handheld portion is arranged, the traveller wears to locate perpendicularly the arc spout, the free end of traveller passes through lock nut locking the traveller with the relative position of arc spout.

Optionally, the positioning assembly includes an arc-shaped plate disposed on the first handheld portion and a fixing hole disposed on the second handheld portion, the arc-shaped plate is provided with a plurality of positioning holes sequentially arranged at intervals along a swing arc of the second handheld portion relative to the first handheld portion, and the fixing hole is locked on the positioning hole at a preset position through a positioning pin to realize locking of the first handheld portion and the second handheld portion at the corresponding position.

Optionally, the main body of the first clamp body is provided with a first curved arc corresponding to an outer side surface connected with the first clamping arm; and a second arc is arranged on the main body part of the second clamp body corresponding to the outer side surface connected with the second clamping arm.

Compared with the introduction content of the background technology, the fixing clamp for clamping the tibia and the bone plate comprises a first clamp body and a second clamp body which are hinged in a crossed mode; one end of the first clamp body is provided with a first handheld part, and the other end of the first clamp body is provided with a first clamping arm; one end of the second forceps body is provided with a second holding part, and the other end of the second forceps body is provided with a second clamping arm; the first handheld part and the second handheld part are oppositely arranged to form a handheld component of the fixed clamp, and the first clamping arm and the second clamping arm are oppositely arranged to form a jaw component of the fixed clamp; one of the first clamping arm and the second clamping arm is matched with the head side structure of the tibia and the bone plate in a shape matching mode, and the other clamping arm is matched with the tail side structure of the tibia and the bone plate in a shape matching mode. In the practical application process, one of the first clamping arm and the second clamping arm which form the jaw assembly is matched with the head side structures of the tibia and the bone plate in a profiling mode, and the other of the first clamping arm and the second clamping arm is matched with the tail side structures of the tibia and the bone plate in a profiling mode, so that the fixing reliability of the tibia and the bone plate in clamping and fixing can be guaranteed, the bone plate can be kept in the center of the tibia, and the problem of postoperative complications caused by bone plate displacement is effectively avoided; and the head side and the tail side of the tibia can be clamped at the inner side of the tibia by the fixing clamp, so that a reliable bone holding function is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a fixing clamp according to an embodiment of the present invention;

fig. 2 is a schematic view of a matching structure of a ratchet and an arc-shaped rack according to an embodiment of the present invention;

fig. 3 is a schematic sectional view of a fixing clamp according to an embodiment of the present invention.

Wherein, in fig. 1-3:

the first forceps body 10, the first hand-held part 11, the first arc 12, the first clamping arm 13, the ratchet 14 and the positioning latch 140;

the second forceps body 20, the second hand-held part 21, the second arc 22, the second clamping arm 23, the arc rack 24 and the positioning latch 240;

a hinge shaft 30.

Detailed Description

The core of the utility model is to provide a fixed pincers for centre gripping shin bone and hone lamella to the problem that the hone lamella aversion appears easily and leads to postoperative complication when solving and adopting fixed pincers to assist fixed shin bone and hone lamella.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to fig. 3, fig. 1 is a schematic diagram of an overall structure of a fixing clamp according to an embodiment of the present invention; fig. 2 is a schematic view of a matching structure of the ratchet and the arc-shaped rack provided by the embodiment of the present invention; fig. 3 is a schematic sectional view of a fixing clamp according to an embodiment of the present invention.

The utility model provides a fixing clamp for clamping tibia and bone lamella, which comprises a first clamp body 10 and a second clamp body 20 which are hinged in a crossing way; one end of the first clamp body 10 is provided with a first holding part 11, and the other end is provided with a first clamping arm 13; one end of the second forceps body 20 is provided with a second holding part 21, and the other end is provided with a second clamping arm 23; wherein the first handheld portion 11 is arranged opposite to the second handheld portion 21 to form a handheld component of the fixed clamp, and the first holding arm 13 is arranged opposite to the second holding arm 23 to form a jaw component of the fixed clamp; one of the first and second clamp arms 13, 23 is contoured to fit the tibia and the cephalad structure of the bone plate, and the other is contoured to fit the tibia and the caudal structure of the bone plate.

In the practical application process, one of the first clamping arm 13 and the second clamping arm 23 which form the jaw assembly is matched with the head side structures of the tibia and the bone plate in a copying manner, and the other one of the first clamping arm and the second clamping arm is matched with the tail side structures of the tibia and the bone plate in a copying manner, so that the fixing firmness of the tibia and the bone plate can be ensured, the bone plate is kept at the central position of the tibia, and the problem of postoperative complications caused by bone plate displacement is effectively avoided; and this fixed pincers can block the cephalad and the caudal facet of shin bone at the shin bone inboard, realize reliable bone function of holding.

In some embodiments, the side of the first clamping arm 13 for engaging with the tibia and the cephalad structure of the bone plate and the side of the second clamping arm 23 for engaging with the tibia and the caudal structure of the bone plate may be provided with anti-slip features. The anti-slip texture may be a tooth-like structure, or other protective texture commonly used by those skilled in the art, such as a grid texture. Through the design protection line, the first clamping arm 13 and the second clamping arm 23 clamp the tibia and the bone plate more stably and reliably.

In some more specific embodiments, the front end of the first clamping arm 13 and the front end of the second clamping arm 23 may be designed to bend toward the direction of the hinge axis of the first forceps body 10 and the second forceps body 20 by a preset angle, and by bending the preset angle, the clamping surfaces of the first clamping arm 13 and the second clamping arm 23 may press the bone plate onto the bone surface of the tibia, so that the bone plate is tightly attached to the bone surface of the tibia, and a certain avoiding space may be provided for the surgical operation, which facilitates the operation of drilling, nailing, setting a bone and the like performed by the surgeon until the bone plate is taken out after the surgical operation is completed.

In some more specific embodiments, the first holding portion 11 and the second holding portion 21 can be designed as finger rings, and generally operated by extending the thumb and the index finger into the finger rings. Through the structural style of designing into the finger ring for the stationary tong is difficult to drop from operator's hand. It should be understood that the above-mentioned structure of the finger ring is merely an example of the embodiment of the present invention, and in the practical application, other structure of the hand-held portion may be selected, which is not limited herein.

In some more specific embodiments, a positioning assembly for positioning the opening angle of the jaw assembly can be disposed between the first holding portion 11 and the second holding portion 21. Through designing this locating component, can be more convenient to the location of the subassembly opening degree of keeping silent of the fixed pincers of shin bone lamella, wherein, locate this one end of handheld subassembly with positioner, make things convenient for doctor handheld control more.

In a further embodiment, the positioning assembly may specifically include an arc-shaped rack 24 disposed on the second handheld portion 21 and a ratchet 14 disposed on the first handheld portion 11, the arc-shaped rack 24 is arranged along an arc of the second handheld portion 21 relative to the first handheld portion 11, the arc-shaped rack 24 is provided with positioning latches 240 arranged in sequence, the ratchet 14 is provided with a positioning latch 140 engaged with the positioning latch 240 in a one-way manner, when the second handheld portion 21 and the first handheld portion 11 are close to each other, the ratchet 14 can slide relative to the arc-shaped rack 24, and when the second handheld portion 21 and the first handheld portion 11 are far away from each other, the positioning latch 140 is engaged with the positioning latch 240. Wherein the ratchet 14 can be designed into a swing structure, and the positioning latch 140 of the ratchet 14 has a tendency to move towards the direction of the engagement of the positioning latch teeth 240 through a spring. Through designing the locating component into the structural style of the ratchet bar, the adjusting and controlling of the locating component are more convenient, and the ratchet bar has an automatic locking function.

It should be understood that the above-mentioned structural form of the ratchet bar is only an example of the positioning assembly of the present invention, in an actual application process, it may be further designed that the second handheld portion 21 is provided with an arc-shaped rack 24, the arc-shaped rack 24 is provided with positioning latches 240 sequentially arranged along an extending direction of the arc-shaped rack, the first handheld portion 11 is provided with a positioning latch 140, the positioning latch 140 is engaged and locked with the positioning latch 240, and the engagement and locking relationship between the positioning latch 140 and the positioning latch 240 is disengaged by the axial movement of the hinge shaft of the first handheld portion 11 and the second handheld portion 21 relative to each other, which is relatively complex in operation compared with the manner of the aforementioned ratchet bar, but can achieve the function of adjustment.

In addition, the positioning assembly can also be designed to comprise an arc-shaped sliding groove arranged on the first handheld portion 11 and a sliding column arranged on the second handheld portion 21, the arc-shaped sliding groove is arranged along a swinging arc of the second handheld portion 21 relative to the first handheld portion 11, the sliding column vertically penetrates through the arc-shaped sliding groove, and the free end of the sliding column is locked at the relative position of the sliding column and the arc-shaped sliding groove through a locking nut.

Or, the positioning component is designed to include an arc-shaped plate provided on the first handheld portion 11 and a fixing hole provided on the second handheld portion 21, the arc-shaped plate is provided with a plurality of positioning holes sequentially arranged at intervals along a swing arc of the second handheld portion 21 relative to the first handheld portion 11, and the fixing hole is locked on the positioning hole at a preset position through a positioning pin to realize locking of the relative position of the first handheld portion 11 and the second handheld portion 21. In the practical application process, the corresponding positioning component form may be selected according to the practical arrangement requirement, which is not limited herein in more detail.

In some more specific embodiments, the main body portion of the first forceps body 10 is provided with a first curved arc 12 corresponding to the outer side surface engaged with the first holding arm 13; similarly, the main body of the second clamp body 20 is provided with a second curved arc 22 corresponding to the outer side surface connected with the second clamping arm 23. By designing the first and second curved arcs 12 and 22, the first and second holding arms 13 and 23 can be more conveniently modeled.

In addition, it should be noted that the lengths of the first holding arm 13 and the second holding arm 23 may be designed according to the size of the bone and the specifications of the bone plate to be used. The fixing forceps with the corresponding size can be selected according to bones with different specifications and sizes.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

It should be understood that the use of "system," "apparatus," "unit" and/or "module" herein, if any, is merely one way to distinguish between different components, elements, parts, portions or assemblies of different levels. However, other words may be substituted by other expressions if they accomplish the same purpose.

As used in this application and in the claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to include the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements. An element defined by the phrase "comprising a component of ' 8230 ' \8230; ' does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

Wherein in the description of the embodiments of the present application, "/" indicates an inclusive meaning, for example, a/B may indicate a or B; "and/or" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality" means two or more than two.

In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

If used in this application, the flowcharts are intended to illustrate operations performed by the system according to embodiments of the present application. It should be understood that the preceding or following operations are not necessarily performed in the exact order in which they are performed. Rather, the various steps may be processed in reverse order or simultaneously. Meanwhile, other operations may be added to or removed from these processes.

The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.

Claims (10)

1. Fixing forceps for clamping tibia and bone plate, characterized by comprising a first forceps body (10) and a second forceps body (20) which are hinged in a cross manner;

one end of the first clamp body (10) is provided with a first handheld part (11), and the other end is provided with a first clamping arm (13);

one end of the second clamp body (20) is provided with a second hand-held part (21), and the other end is provided with a second clamping arm (23);

wherein the first and second hand-held portions (11, 21) are arranged opposite to each other to form a hand-held assembly of a fixed jaw, and the first and second gripping arms (13, 23) are arranged opposite to each other to form a jaw assembly of the fixed jaw; one of the first clamping arm (13) and the second clamping arm (23) is adapted to contour to the tibia and the cephalad structure of the bone plate, and the other is adapted to contour to the tibia and the caudal structure of the bone plate.

2. The clamp for clamping a tibia and a bone plate according to claim 1, characterized in that a face of the first clamping arm (13) for engaging with a cephalad structure of the tibia and the bone plate and a face of the second clamping arm (23) for engaging with a caudal structure of the tibia and the bone plate are provided with anti-slip threads.

3. The fixation clamp for holding a tibia and a bone plate as recited in claim 2, wherein the anti-slip pattern is a tooth-like structure.

4. The fixation clamp for clamping tibia and bone plate according to claim 1, wherein the front end of the first clamping arm (13) and the front end of the second clamping arm (23) are both bent at a predetermined angle toward the hinge axis direction of the first clamp body (10) and the second clamp body (20), so that the bone plate is tightly attached to the bone surface of the tibia and the operation space is avoided.

5. Fixing forceps for holding the tibia and the bone plate according to claim 1, characterised in that the first holding portion (11) and the second holding portion (21) are finger collars.

6. Fixing clamp for clamping tibia and bone plates according to claim 1, characterized in that a positioning assembly for positioning the opening angle of the jaw assembly is arranged between the first holding portion (11) and the second holding portion (21).

7. The fixing forceps for clamping tibia and the bone plate as claimed in claim 6, characterized in that the positioning assembly comprises an arc-shaped rack (24) arranged on the second handheld portion (21) and a ratchet tooth (14) arranged on the first handheld portion (11), the arc-shaped rack (24) is arranged along an arc of swing of the second handheld portion (21) relative to the first handheld portion (11), positioning latch teeth (240) are arranged on the arc-shaped rack (24) in sequence, a positioning latch tongue (140) engaged with the positioning latch teeth (240) is arranged on the ratchet tooth (14), the ratchet tooth (14) can slide relative to the arc-shaped rack (24) when the second handheld portion (21) and the first handheld portion (11) are close to each other, and the positioning latch tongue (140) is engaged with the positioning latch teeth (240) and locked when the second handheld portion (21) and the first handheld portion (11) are far away from each other.

8. The fixing forceps for holding a tibia and a bone plate as claimed in claim 6, characterized in that the positioning assembly includes an arc-shaped sliding groove provided on the first holding portion (11) and a sliding column provided on the second holding portion (21), the arc-shaped sliding groove is arranged along an arc of swing of the second holding portion (21) relative to the first holding portion (11), the sliding column is vertically arranged through the arc-shaped sliding groove, and a free end of the sliding column locks a relative position of the sliding column and the arc-shaped sliding groove through a locking nut.

9. The fixing forceps for holding a tibia and a bone plate according to claim 6, wherein the positioning assembly includes an arc-shaped plate provided on the first holding portion (11) and a fixing hole provided on the second holding portion (21), the arc-shaped plate is provided with a plurality of positioning holes which are sequentially arranged at intervals along a swing arc of the second holding portion (21) relative to the first holding portion (11), and the fixing hole is locked on the positioning hole at a predetermined position by a positioning pin, so that the relative positions of the first holding portion (11) and the second holding portion (21) are locked.

10. The fixation forceps for clamping tibia and bone plate according to any one of claims 1-9, characterized in that the main body portion of the first forceps body (10) is provided with a first curved arc (12) corresponding to the outer side surface engaged with the first clamping arm (13); and a second bent arc (22) is arranged on the main body part of the second clamp body (20) corresponding to the outer side surface connected with the second clamping arm (23).

Images