CN219594735U - Special bone piece clamping pliers for jaw bone grafting - Google Patents

Abstract

The utility model discloses a special bone block clamping forceps for jaw bone grafting, and relates to the technical field of medical tools. The utility model comprises two clamping pieces, wherein the two clamping pieces comprise integrally formed clamp handles and clamp heads, the two clamping pieces are connected through a gill-penetrating joint, the clamp handles of the two clamping pieces are positioned on the same side of the gill-penetrating joint, the clamp heads of the two clamping pieces are positioned on the same end of the gill-penetrating joint, clamp beaks are arranged at the top ends of the two clamp heads, the two clamp beaks are arranged oppositely, the opposite surfaces are tooth surfaces, and when the two clamping pieces clamp, the tooth surfaces of the two clamp beaks are in tight contact. The length of the clamping forceps and the size of the forceps beak are reasonably designed, so that an operator can conveniently form a fulcrum with two hands, the clamping area and the clamping friction force of the forceps beak on the bone block are increased, the bone block can be gripped more tightly, and the operation becomes stable and safe.

Description

Special bone piece clamping pliers for jaw bone grafting

Technical Field

The utility model relates to the technical field of medical tools, in particular to a special bone block clamping forceps for jaw bone grafting.

Background

The jawbone defect caused by factors such as development, trauma, inflammation, tumor excision and the like not only affects the beauty, but also affects the chewing function. Along with the improvement of living standard, the requirements of people on beauty and chewing function recovery are higher and higher, the repair of the jawbone defect by using an autologous block bone grafting technology and a double-layer bone slice interlayer technology has remarkable advantages, and the jawbone defect repair method has wider clinical application, but the operation of the jawbone grafting operation is complex and needs special medical equipment for assistance. The autologous bone is usually obtained from the parts of ilium, tibia, rib, cheekbone, chin of mandible, angle of mandible, maxillary tuberosity, etc., and the bone blocks cut by operation are mostly in irregular shape, and can be matched with the shape of the implanted region of bone defect only by morphological trimming. The double-layer bone slice interlayer technology is to cut and trim the bone slice into very thin bone slices, and has extremely high requirements on instruments. In the operation, a doctor is required to hold a grinding or slicing machine forceps handle with the rotating speed exceeding 3000 revolutions per minute, the other hand is required to firmly hold the intercepted bone blocks, and a fulcrum is formed between the two hands, so that the forceps handle is safer. However, at present, no special apparatus is available for reliably clamping the irregular bone blocks, and the clamping by using a common surgical forceps or a needle holder is quite weak, so that the operation is labor-consuming, sometimes the bone blocks accidentally slide down to cause pollution, the bone grafting operation is failed, even the fingers of the operator can be injured by the slipping of the apparatus, or the operator is injured by the fact that the bone blocks are thrown out by a rotating grinding head of a grinding machine.

The research shows that the reasons for the fact that the common forceps or needle holder is not firm in clamping the bone block are four points: firstly, the contact area between the forceps beak and the bone block is small and the forceps beak and the bone block cannot be clamped; secondly, the friction force between the forceps beak and the bone block is small, and the forceps are not firm; thirdly, the rigidity between the forceps head and the forceps handle is insufficient, and the clamping force is insufficient; fourthly, the forceps handles are too long, a fulcrum cannot be formed between two hands of an operator, and stability is insufficient. Therefore, in order to overcome the defects of the prior apparatus, the special bone block clamping forceps for jaw bone grafting are designed and manufactured to solve the problem that the prior apparatus is not firm in clamping bone blocks.

Disclosure of Invention

The utility model aims at: the jaw bone grafting special bone block clamping forceps are provided with the forceps beaks at the top ends of forceps heads of clamping pieces, tooth surfaces are arranged on the forceps beaks, bone blocks are clamped through the tooth surfaces of the forceps beaks, friction force between the forceps beaks and the bone blocks is increased, and the length of the clamping forceps and the size of the forceps beaks are reasonably set so as to solve the problem that the bone blocks are not firmly clamped in the background art.

The technical scheme adopted by the utility model is as follows:

the utility model relates to a special bone block clamping forceps for jaw bone grafting, which comprises two clamping pieces, wherein the two clamping pieces comprise integrally formed forceps handles and forceps heads, the two clamping pieces are connected through a gill-penetrating joint, the forceps handles of the two clamping pieces are positioned on the same side of the gill-penetrating joint, the forceps heads of the two clamping pieces are positioned on the same end of the gill-penetrating joint, forceps beaks are arranged at the top ends of the two forceps heads, the two forceps beaks are opposite, the opposite surfaces are tooth surfaces, and when the two clamping pieces clamp, the tooth surfaces of the two forceps beaks are tightly contacted.

Further, the opposite inner sides of the two clamp handles are respectively provided with a spring piece, the two spring pieces are symmetrically arranged, one ends of the two spring pieces are respectively fixed with the two clamp handles, and the other ends of the two spring pieces are mutually clamped together.

Further, the two jawarms extend to the same side of the binding clip, and the extending direction of the jawarms and the extending direction of the binding clip form an angle of 90 degrees, and the jawarms are cuboid.

Further, the tooth surface of the beak is provided with a transverse groove and a longitudinal groove, grooves of the transverse groove and the longitudinal groove are arranged in a crossing mode, the groove depth and the width of the transverse groove and the longitudinal groove are both 0.6mm, and the groove spacing is 1.0mm.

Further, the total length of the two clamping pieces is 135-145 mm, and the length of the clamp handle is 98-103 mm.

Further, the outer side of the clamp handle is also provided with a shallow groove, and the groove direction of the shallow groove is perpendicular to the extending direction of the clamp handle.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. the utility model relates to a special bone block clamping forceps for jaw bone grafting, which is reasonable in clamping forceps length and forceps handle and forceps head length, is convenient for an operator to form a fulcrum with each other by hands, ensures stable and safe operation, and prevents bone blocks from accidentally sliding down in the bone block trimming and bone block cutting processes.

2. The utility model relates to a special bone block clamping forceps for jaw bone grafting, which forms an angle of 90 degrees with a forceps head and a forceps handle by a forceps beak and an extending part thereof, so that an operator can operate the clamping forceps more smoothly, the quality and the efficiency of the operation are improved, and the clamping forceps are simple in structure and high in practicability.

3. The utility model relates to a jaw bone grafting special bone block clamping forceps, which has larger forceps beak surface, can increase the contact area of the forceps beak tooth surface and a bone block, and the tooth surface which is arranged by intersecting a transverse groove and a longitudinal groove can increase friction force to clamp the bone block more firmly.

Drawings

For a clearer description of the technical solutions of embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered limiting in scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a schematic view of the structure of a clamping jaw;

FIG. 2 is a front view of the clamping pliers in a clamped state;

FIG. 3 is a side view of the clamping jaw;

fig. 4 is a tooth surface view of the beak.

Reference numerals illustrate: 1-clamping piece, 101-clamp handle, 1011-shallow groove, 102-clamp head, 103-clamp beak, 1031-transverse groove, 1032-longitudinal groove, 104-gill-penetrating joint and 2-spring piece.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The features and capabilities of the present utility model are described in further detail below in connection with examples.

Example 1

As shown in fig. 1 to 3, the utility model relates to a bone block clamping forceps special for jaw bone grafting, which comprises two clamping pieces 1, wherein the two clamping pieces 1 respectively comprise a forceps handle 101 and a forceps head 102 which are integrally formed, the two clamping pieces 1 are connected through a gill-penetrating joint 104, the forceps handles 101 of the two clamping pieces 1 are positioned on the same side of the gill-penetrating joint 104, the forceps heads 102 of the two clamping pieces 1 are positioned on the same end of the gill-penetrating joint 104, forceps beaks 103 are arranged at the top ends of the two forceps heads 102, the two forceps beaks 103 are arranged oppositely, the opposite surfaces are tooth surfaces, and when the two clamping pieces 1 are clamped, the tooth surfaces of the two forceps beaks 103 are in close contact.

Preferably, as shown in fig. 3, the two beaks 103 extend to the same side of the binding clip 102, and the extending direction of the beaks 103 forms an angle of 90 degrees with the extending direction of the binding clip 102, and the beaks 103 are rectangular.

Preferably, as shown in fig. 4, the tooth surface of the beak 103 has a transverse groove 1031 and a longitudinal groove 1032, the grooves of the transverse groove 1031 and the longitudinal groove 1032 are arranged in a crossing manner, the groove depth and the width of the transverse groove 1031 and the longitudinal groove 1032 are both 0.6mm, and the groove pitch is 1.0mm.

The clamping pliers comprise a pair of pliers heads 102, a pair of pliers handles 101, gill-penetrating joints 104 and a pair of spring pieces 2, wherein one pliers head 102 and one pliers handle 101 are integrally formed into a clamping piece 1,2 clamping pieces 1 are connected by the gill-penetrating joints 104, the top ends of the pliers heads 102 are provided with a pair of pliers beaks 103, when the pliers handles 101 are downward and the pliers heads 102 are upward, the pliers beaks 103 extend to the right side or the left side of the pliers heads 102 and form an angle of 90 degrees with the pliers heads 102, so that an operator can operate the pliers more smoothly. In this embodiment, the beak 103 is rectangular, 20mm long, 14mm wide and 3mm thick, the opposite faces of the two beaks 103 are tooth faces, the tooth faces are the transverse grooves 1031 and the longitudinal grooves 1032 which are arranged in a crossing manner, in this embodiment, the groove depths and widths of the transverse grooves 1031 and the longitudinal grooves 1032 are 0.6mm, and the groove spacing is 1.0mm. The surfaces of the forceps beaks 103 are larger, the contact area between the tooth surfaces of the forceps beaks 103 and the bone pieces is increased, and the tooth surfaces of the transverse grooves 1031 and the longitudinal grooves 1032 which are arranged in a crossing manner can increase friction force so as to clamp the bone pieces more firmly.

Preferably, the total length of the two clamping members 1 in this embodiment is 140mm, wherein the length of the clamp handle 101 is 100mm, and the length of the clamp head 102 is 40mm. The length of the clamping piece 1 is designed to be close to the length of the handle of the bone block polishing or slicing machine, so that a fulcrum can be formed between the left hand and the right hand, and the operation becomes stable and safe.

Example two

This example is a further illustration of the present utility model.

As shown in fig. 1-2, in this embodiment, in a preferred embodiment of the present utility model, the opposite inner sides of the two handles 101 are provided with spring pieces 2, the two spring pieces 2 are symmetrically arranged, one ends of the two spring pieces 2 are respectively fixed with the two handles 101, and the other ends of the two spring pieces 2 are mutually clamped together.

In this embodiment, the spring piece 2 is disposed between the handles 101 of the two clamping members 1, and the spring piece 2 has elastic force for recovering to the initial state after being deformed under pressure, so that not only has elastic force after the clamping of the clamping pliers, but also the clamping force can be conveniently grasped by an operator.

Example III

This example is a further illustration of the present utility model.

As shown in fig. 1, in this embodiment, in a preferred embodiment of the present utility model, a shallow recess 1011 is further provided on the outer side of the grip 101, and the groove direction of the shallow recess 1011 is perpendicular to the extending direction of the grip 101.

In this embodiment, with the above structure, shallow grooves 1011 are symmetrically formed on the outer surfaces of the two clamp handles 101, so that the friction force for holding the clamp handles 101 is increased, and the operator can hold the clamp more firmly.

In the utility model, an operator loads opposite force on a pair of forceps handles 101, the force is transmitted to a forceps head 102 through a gill-penetrating joint 104, a pair of forceps beaks 103 are tightly meshed together, and a spring piece 2 is pressed and deformed; the force to load the handles 101 is canceled, and the force to return the spring piece 2 to the original state opens the pair of handles 101 and opens the beak 103 which bites together. The clamping forceps special for jaw bone grafting can prevent bone blocks from accidentally sliding off in the process of trimming and slicing the bone blocks; can effectively prevent the injury of the operator during trimming and slicing, improve the quality and efficiency of the operation, and has simple structure and high practicability.

The above description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions that are not creatively contemplated by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims (5)

1. A special bone piece clamping forceps for jaw bone grafting, which is characterized in that: the clamp comprises two clamping pieces (1), wherein the two clamping pieces (1) comprise integrally formed clamp handles (101) and clamp heads (102), the two clamping pieces (1) are connected through a gill-penetrating joint (104), the clamp handles (101) of the two clamping pieces (1) are positioned on the same side of the gill-penetrating joint (104), the clamp heads (102) of the two clamping pieces (1) are positioned at the same end of the gill-penetrating joint (104), clamp beaks (103) are further arranged at the top ends of the two clamp heads (102), the two clamp beaks (103) are opposite, the opposite surfaces are tooth surfaces, and when the two clamping pieces (1) are clamped, the tooth surfaces of the two clamp beaks (103) are in tight contact; the two forceps beaks (103) extend to the same side of the forceps head (102), the extending direction of the forceps beaks (103) and the extending direction of the forceps head (102) form an angle of 90 degrees, and the forceps beaks (103) are cuboid.

2. A jaw bone graft specific bone block clamping jaw as claimed in claim 1, wherein: the inner side surfaces opposite to the two clamp handles (101) are respectively provided with a spring piece (2), the two spring pieces (2) are symmetrically arranged, one ends of the two spring pieces (2) are respectively fixed with the two clamp handles (101), and the other ends of the two spring pieces (2) are mutually clamped together.

3. A jaw bone graft specific bone block clamping jaw as claimed in claim 1, wherein: the tooth surface of the forceps beak (103) is provided with a transverse groove (1031) and a longitudinal groove (1032), the grooves of the transverse groove (1031) and the longitudinal groove (1032) are arranged in a crossing mode, the groove depth and the groove width of the transverse groove (1031) and the groove depth of the longitudinal groove (1032) are both 0.6mm, and the groove spacing is 1.0mm.

4. A jaw bone graft specific bone block clamping jaw as claimed in claim 1, wherein: the outer side of the clamp handle (101) is also provided with a shallow groove (1011), and the groove direction of the shallow groove (1011) is perpendicular to the extending direction of the clamp handle (101).

5. A jaw bone graft specific bone block clamping jaw as claimed in claim 1, wherein: the total length of the two clamping pieces (1) is 135-145 mm, wherein the length of the clamp handle (101) is 98-103 mm.