CN113081340A - Bone grafting instrument set - Google Patents

Bone grafting instrument set Download PDF

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Publication number
CN113081340A
CN113081340A CN202110498894.1A CN202110498894A CN113081340A CN 113081340 A CN113081340 A CN 113081340A CN 202110498894 A CN202110498894 A CN 202110498894A CN 113081340 A CN113081340 A CN 113081340A
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China
Prior art keywords
forceps
bone tissue
bone
handle
head
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CN202110498894.1A
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Chinese (zh)
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CN113081340B (en
Inventor
周建
潘巨利
魏雪竺
王变红
夏登胜
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Beijing Dongbo Dental Handpiece Co ltd
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Beijing Stomatological Hospital
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Publication of CN113081340A publication Critical patent/CN113081340A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0089—Implanting tools or instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/06—Implements for therapeutic treatment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/06—Implements for therapeutic treatment
    • A61C19/063—Medicament applicators for teeth or gums, e.g. treatment with fluorides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00—Dental tools or instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00—Dental tools or instruments
    • A61C3/10—Tooth pincettes or the like

Abstract

The invention discloses a group of bone transplantation instruments, which comprise a bone tissue separator, a bone tissue separator and a bone tissue separator, wherein the bone tissue separator comprises a rod-shaped handle, a connecting rod and a cutter head, the middle part of the cutter head is wide, the two ends of the cutter head are narrow, the front end of the cutter head is an end flat-head cutter edge, the top surface of the cutter head is a cutter edge surface, and the two sides of the; comprises a bone tissue extractor which is in the shape of a clamp, a clamp head is composed of two clamp plates, the top ends of the two clamp plates are respectively provided with a clamping structure with an interlayer, and a water swelling material is arranged in the interlayer. The bone tissue holder is in a forceps shape, and the top ends of the forceps arms are respectively provided with a C-shaped forceps head; the C-shaped opening of the forceps head faces the inner sides of the two forceps arms, and a C-shaped bottom plate is arranged at the opening. The unique structures of the instruments and the mutual matching of the instruments can reduce the technical sensitivity, increase the success rate of the operation, reduce the difficulty of the operation of doctors, reduce the pain of patients and facilitate the prognosis of the operation in the process of separating, taking out and holding the autologous bones of the oral cavity.

Description

Bone grafting instrument set
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a group of bone grafting instruments.
Background
Dental implant restoration is one of the most common methods for restoring intraoral missing teeth, and bone grafting is often required in dental implant surgery due to insufficient bone mass in the missing tooth area. While autogenous bone is the most ideal bone grafting material, bone graft is a common intraoral autogenous bone grafting method.
At present, due to the lack of suitable instruments, some traditional instruments used in oral tooth extraction are often used in autologous bone transplantation, such as a dental elevator used in bone tissue separation, hemostatic forceps used in bone tissue extraction, and common forceps used in bone tissue holding. The instrument greatly increases the technical sensitivity in operation, and is easy to cause pollution and even bone extraction failure. For example, the dental elevator is an appliance for elevating teeth, the working edge is arc-shaped, the hardness of the teeth is far higher than that of bone tissues, and when the bone tissues are separated in autologous bone transplantation, the autologous bone tissues are easily damaged due to stress concentration of the dental elevator, and even the autologous bone tissues are broken. The hemostatic forceps are used for clamping blood vessels, autologous bone tissues are taken out by using the hemostatic forceps, the clamping force is not easy to control, if the clamping force is too large, the edges of the autologous bone are fractured, and the fractured edges can cause local inflammatory reaction in the bone reconstruction process after bone transplantation; if the clamping force is too small, the autogenous bone tissue can slip off, the bone tissue can be polluted, and the operation principle of sterile operation is violated. Ordinary tweezers can be used for clamping instruments and articles for oral operation, but since autologous bone tissues are extremely precious, the forceps can be accidentally dropped into the mouth of a patient or even the ground during operation, and operation failure is caused.
Therefore, the existing instruments for oral cavity autologous bone grafting have higher technical sensitivity, and the instruments are too independent, so that the instruments are only borrowed into the autologous bone grafting operation when needed, are not matched tools designed based on bone grafting, and are easy to fail.
Disclosure of Invention
In order to solve the above problems, the present invention provides a set of bone grafting instruments, which can be used for oral maxillofacial mass bone grafting for separating, removing and holding autologous bone tissue in an oral bone grafting operation. The bone tissue separator has the advantages that when the bone tissue separator is used for separating the bone tissue, the bone tissue is flexibly and accurately cut, the edge fracture is reduced, and the technical sensitivity is reduced; the bone tissue extractor has the advantages that the contact area between the clamping piece part and the bone block is large, the bone tissue extractor is not easy to loosen, the leakage holes can help to discharge excessive blood and other liquid, the metal clamping piece is prevented from slipping, and the friction force can be increased through the leakage holes; when the baffle is arranged outside the clamping piece and the baffle form an interlayer cavity, the filling piece is arranged in the interlayer cavity, the filling piece extruded in water is soft in texture, the bone tissue is protected, meanwhile, the edge of the bone tissue is locally sunk into the extruded filling piece, the clamping is more stable, and the effective components of the hemostatic reagent in the filling piece can also be scattered from the leakage hole to help hemostasis; the bone tissue holder, the inner wall of the C-shaped forceps head and the C-shaped bottom plate not only can form a surrounding area with a support of the baffle plate to better hold the bone tissue, but also can help blood and debris during drilling to be discharged due to the inclined surface of the bottom plate. The unique structure of the instruments and the mutual matching of the instruments can reduce the technical sensitivity in the process of separating, taking out and holding the self bones of the oral cavity, increase the success rate of the operation, reduce the operation difficulty of doctors, reduce the pain of patients and facilitate the prognosis of the operation.
The technical scheme of the invention is as follows:
the bone transplantation instruments comprise bone tissue separators, each bone tissue separator comprises a rod-shaped handle, a connecting rod and a cutter head, the rod-shaped handles and the connecting rods are positioned on the same axis, and two ends of each connecting rod are connected with the front end of each handle and the rear end of each cutter head respectively; the middle part of the cutter head is wide, the two ends of the cutter head are narrow, the front end of the cutter head is an end flat-head cutting edge, the top surface of the cutter head is a cutting edge surface, and two sides of the cutting edge surface are respectively provided with a side cutting edge;
the bone tissue extractor is integrally in a forceps shape and comprises a first forceps body, a second forceps body and a connecting shaft, wherein the first forceps body and the second forceps body are hinged through the connecting shaft to form a forceps handle and a forceps head; the clamp handle drives the clamp head to open and close when opening and closing; the forceps head is composed of two clamping plates, the two clamping plates are bent towards the direction of clamping bone tissues, and the whole body is in an arc shape; clamping pieces are respectively arranged at the top ends of the two clamping plates, and a plurality of leakage holes are formed in the clamping pieces; the two clamping sheets are attached when the forceps handles are folded;
a separation blade is arranged on the outer side of the clamping piece, an interlayer cavity is arranged between the clamping piece and the separation blade, and a filling piece is arranged in the interlayer cavity;
the forceps comprise a forceps handle and two forceps arms, wherein the forceps handles are bent, the two forceps arms extend from two ends of an opening of each forceps handle, and C-shaped forceps heads are respectively arranged at the top ends of the two forceps arms; the C-shaped openings of the forceps heads face the inner sides of the two forceps arms, and a C-shaped bottom plate is arranged at the openings along the inner wall of the bottom ends of the forceps heads; when the two forceps heads are closed, the end parts of the two bottom plates are connected, and the middle parts of the two bottom plates are hollowed out;
the C-shaped bottom plate on the bone tissue holder is an inclined plane, and the bottom end of the inclined plane faces to the center of the forceps head.
Preferably, the interlayer cavity is provided with a cavity opening, and the cavity opening faces the direction of the clamping plate.
Preferably, the filling sheet is one of a cotton wool sheet, a water swelling crosslinked polymer sheet and a silica gel sheet.
Preferably, the filling sheet is adsorbed with a dry hemostatic agent.
Preferably, the bone tissue separator includes a first bone tissue separator, a second bone tissue separator, and a third bone tissue separator;
the tool bit axis of the first bone tissue separator and the handle axis are positioned on the same straight line;
the cutter head of the second bone tissue separator is bent towards one side of the handle;
the cutter head of the third bone tissue separator bends towards the other side of the handle, and the bending direction of the cutter head of the third bone tissue separator is opposite to that of the cutter head of the second bone tissue separator.
Preferably, the included angle formed by the axis of the cutter head of the second bone tissue separator and the axis of the handle is 0-40 degrees;
the axis of the cutter head of the third bone tissue separator and the axis of the handle form an included angle of 0-40 degrees.
Preferably, the insides of two sides of the forceps handle on the bone tissue extractor are respectively provided with a reed, and the two reeds are abutted when the forceps handle is folded; both sides of the forceps handle are in an inward arc shape.
Preferably, the forceps arms on the bone tissue holder are respectively provided with a threaded through hole and a threaded rod, the threaded rod penetrates through the two through holes, and one end of the threaded rod is provided with a limiting block.
The invention has the technical effects that:
1. according to the bone transplantation instrument, the end part of the tool bit of the bone tissue separator is a flat-head cutting edge, the side edge of the tool bit is provided with the side cutting edge, the bone tissue is flexibly and accurately divided when being separated, the fracture of the edge bone is reduced, and the technical sensitivity is reduced; the bone tissue separator is provided with a first bone tissue separator, a second bone tissue separator and a third bone tissue separator respectively according to the requirements of separating bone tissues in bone block transplantation of various conditions of the oral cavity and adjusting the direction of the upper blade surface of the cutter head so as to adapt to the bone tissue separation of the positions of the front tooth area, the left back tooth area and the right back tooth area.
2. The bone tissue extractor of pliers shape, the position is got for pressing from both sides the piece to binding clip top clamp, can clip the bone piece fast and take out, the area of contact of piece position and bone piece is got in the clamp is great, difficult pine takes off, the reed of pincers handle position, can control the dynamics of getting by the clamp, avoid the damage of bone piece or drop, the discharge of liquid such as too much blood can be helped to the small opening simultaneously, metal clip gets the piece and skids when avoiding liquid such as blood to cause the centre gripping, and the small opening itself also can increase frictional force, help stably pressing from both sides, reduce the pollution that drops and cause, the success rate of performing the operation is improved.
3. Bone tissue extractor can also press from both sides and get the piece and set up the baffle outward, press from both sides and get piece and baffle and form an intermediate layer cavity, be provided with the filling piece in the intermediate layer cavity, the filling piece is for meetting the absorbent cotton thin slice that blood or liquid hemostatic can expand, meet one of water swelling type cross-linked polymer thin slice, the silica gel thin slice, the filling piece can dry the sterilization use after soaking in liquid hemostatic medicament, also can directly spout likepowder dry hemostatic medicament, perhaps directly dip in when using and get liquid hemostatic reagent. When getting with bone tissue extractor, dry filling sheet meets the blood inflation, perhaps dip in and get liquid hemostatic reagent, use and take place the inflation behind the distilled water, filling sheet after the inflation is extruded from the small opening of pressing from both sides piece and baffle, press from both sides piece and bone tissue direct contact, press from both sides the filling sheet of squeezing out in getting the piece small opening and not only increase frictional force but also conveniently press from both sides the bone tissue of getting the edge unsmooth, press from both sides the face of getting the piece and be similar and the towel face, the filling sheet material texture of extruding is soft, when protecting bone tissue, bone tissue edge part is absorbed in the filling sheet of extruding, it is more firm to press from both sides to get, further prevent to drop, stop the pollution. The effective components of the hemostatic agent in the filling sheet can also be dispersed from the leakage hole to help hemostasis.
4. Bone tissue holder, can hold bone tissue, punch for the bone piece in the art, place and supply the district, stably hold bone tissue in the operation steps such as fixed, "C" shape tweezers head inner wall and "C" shape bottom plate can not only be formed with the baffle have the support around the interval to hold bone tissue better, also leave the space that the perforating needle passed for steps such as bone piece punching, the operation of being convenient for, and simultaneously, the bottom plate is the inclined plane, the bits of broken glass when can help blood and drilling is discharged, reduce and wash the step, whole bone tissue holder not only conveniently cooperates with bone tissue extractor, and can reduce the operating time, alleviate patient's misery.
5. Bone tissue separator, bone tissue extractor and bone tissue holder are the apparatus of bone grafting specific design, and cooperate good each other, for example after bone tissue separator separates the bone tissue, bone tissue extractor is convenient for insert the clearance of separation and is got the bone tissue, stably shifts to the bone tissue holder simultaneously in, and the steadiness of the centre gripping of bone tissue holder is convenient for go on of operation such as bone tissue drilling.
The bone grafting instrument set solves the problem that the conventional massive bone grafting lacks suitable instruments, reduces the technical sensitivity, increases the success rate of the operation, reduces the difficulty of the operation of doctors, reduces the pain of patients and is favorable for the prognosis of the operation.
Drawings
Fig. 1 is a schematic structural view of a first bone tissue separator according to embodiment 1 or 2 of the present invention.
Fig. 2 is a schematic structural view of a first bone tissue separator according to embodiment 1 or 2 of the present invention.
Fig. 3 is a schematic structural view of a second bone tissue separator according to embodiment 1 or 2 of the present invention.
Fig. 4 is a schematic structural view of a third bone tissue separator according to embodiment 1 or 2 of the present invention.
Fig. 5 is a schematic structural view of a bone tissue separator according to embodiment 1 or 2 of the present invention.
Fig. 6 is a schematic bottom view of a bone tissue extractor in accordance with example 1 of the present invention.
Fig. 7 is a schematic view of a bone tissue extractor according to example 1 of the present invention.
Fig. 8 is an enlarged view of a portion of the bone tissue extractor A of fig. 7.
Fig. 9 is a schematic bottom view of a bone tissue extractor in accordance with embodiment 2 of the present invention.
Fig. 10 is a schematic view showing the structure of the splint end portion of the bone tissue extractor in accordance with example 2 of the present invention.
FIG. 11 is a schematic view showing a structure of a bone tissue extractor in which a filling piece is provided at the end of a splint in accordance with embodiment 2 of the present invention.
Fig. 12 is a schematic structural view of a bone tissue holder according to embodiment 1 of the present invention.
Fig. 13 is an enlarged view of a portion of the bone tissue extractor B of fig. 9.
Fig. 14 is a side view of a bone tissue holder according to embodiment 1 of the present invention.
In the figure, a bone tissue separator 1; a first bone tissue separator 1 a; a second bone tissue separator 1 b; a third bone tissue separator 1 c; a handle 1.1; a connecting rod 1.2; a connecting section 1.2.1; support section 1.2.2; a tool bit 1.3; a flat cutting edge 1.3.1; a blade face 1.3.2; side blade 1.3.3; a bone tissue extractor 2; a first caliper body 2 a; a second caliper body 2 b; 2.1 of a clamp handle; reed 2.1.1; a connecting shaft 2.2; 2.3 of a binding clip; splint 2.3.1; 2.3.2 of clamping piece; 2.3.3 of leakage holes; a baffle plate 2.3.4; 2.3.5 of filling sheets; cavity opening 2.3.6; a bone tissue holder 3; 3.1 of forceps handle; a forceps arm 3.2; a through hole 3.2.1; screw 3.2.2; a limiting block 3.2.3; 3.3 of forceps heads; bottom plate 3.3.1.
Detailed Description
The present invention is further illustrated by the following examples.
Example 1
As shown in fig. 1 to 8, a set of bone grafting instruments includes a bone tissue separator 1, in which after cutting of bone tissue in an operation area is completed, a cortical bone surface is cut, and cancellous bone in a deep inner surface is still connected to separate bone tissue in a supply area, and the bone tissue separator 1 includes a first bone tissue separator 1a, a second bone tissue separator 1b, and a third bone tissue separator 1 c.
The bone tissue separator 1 comprises a rod-shaped handle 1.1, a connecting rod 1.2 and a cutter head 1.3, the total length is about 185mm, namely the first bone tissue separator 1a, the second bone tissue separator 1b and the third bone tissue separator 1c are all 185mm, the rod-shaped handle 1.1 and the connecting rod 1.2 are positioned on the same axis, and two ends of the connecting rod 1.2 are respectively connected with the front end of the handle 1.1 and the rear end of the cutter head 1.3. The section of the handle 1.1 is regular hexagon, which is convenient to hold, the length is 80mm, and the maximum diameter is 30 mm. The connecting rod 1.2 comprises a connecting section 1.2.1 with a diameter of 3mm and a length of 25mm and a circular section and a supporting section 1.2.2 with a diameter gradually reduced from the end part of the connecting section 1.2.1 to the end part of the cutter head 1.3, the length of the supporting section is 60mm, and the connecting section 1.2.1 and the supporting section 1.2.2 are positioned on the same axis. The middle part of the cutter head 1.3 is wide, the two ends are narrow, the front end is a flat-end cutting edge at the end part 1.3.1, the top surface is a cutting edge surface 1.3.2, two sides of the cutting edge surface 1.3.2 are respectively provided with a side cutting edge 1.3.3, the front projection of the cutter head 1.3 is octagonal, the length is 20mm, the width is 8mm, and the central thickness is about 0.5 mm. The axis of the cutter head 1.3 of the first bone tissue separator 1a is positioned on the same straight line with the axis of the handle 1.1; the cutter head 1.3 of the second bone tissue separator 1b is bent towards one side of the handle 1.1; the cutting head 1.3 of the third bone tissue separator 1c is bent towards the other side of the handle 1.1, and the bending direction is opposite to the bending direction of the cutting head 1.3 of the second bone tissue separator 1 b. The axis of the cutter head 1.3 of the second bone tissue separator 1b forms an included angle of 30 degrees with the axis of the handle 1.1; the axis of the cutting head 1.3 of the third bone tissue separator 1c forms an angle of 30 degrees with the axis of the handle 1.1.
The bone transplantation apparatus also comprises a bone tissue extractor 2, after the bone tissue of the operation area is completely separated, the bone block needs to be taken out, and because the mouth is polluted, the bone block is taken out as soon as possible, so that the pollution of saliva is avoided. The diameter of a drill point for separating bone tissue is 1mm, and suitable tools for quickly taking out the bone tissue are lacked at present. The bone tissue extractor 2 is integrally in the shape of a forceps, the total length is 162mm, the width is 52.8mm, and the bone tissue extractor comprises a first forceps body 2a, a second forceps body 2b and a connecting shaft 2.2, wherein the first forceps body 2a and the second forceps body 2b are hinged through the connecting shaft 2.2 to form a forceps handle 2.1 and a forceps head 2.3; the clamp handle 2.1 drives the clamp head 2.3 to open and close when opening and closing. The two sides of the forceps handle 2.1 are internally provided with reeds 2.1.1 respectively, and the two reeds 2.1.1 are abutted when the forceps handle 2.1 is folded; the two sides of the forceps handle 2.1 are both in an inward arc shape. The forceps head 2.3 is composed of two splints 2.3.1, the two splints 2.3.1 are bent towards the direction of clamping bone tissues, and the whole body is in a curved arc shape; two splint 2.3.1 tops are provided with thickness about 1mm respectively and press from both sides and get piece 2.3.2, it is the disk form to press from both sides to get piece 2.3.2, two press from both sides and get piece 2.3.2 and laminate when pincers handle 2.1 draws in, press from both sides and be equipped with a plurality of small openings 2.3.3 on getting piece 2.3.2, when bone tissue takes out, if blood is too much, can discharge from small opening 2.3.3, prevent that the metal clamp from getting the piece and press from both sides and get the time skid, simultaneously, small opening 2.3.3 has also increased to a certain extent and has pressed from both sides the frictional force of getting piece 2.3.2, realize better getting and.
As shown in fig. 12-14, the bone graft device further comprises a bone tissue holder 3, which is used for placing bone tissue into a receiving area after the bone tissue is removed, and strict aseptic operation is required in the process so as to reduce postoperative complications such as infection. The bone tissue holder 3 is integrally in the shape of a forceps and comprises a forceps handle 3.1 in a bent shape and two forceps arms 3.2 extending from two ends of an opening of the forceps handle 3.1. The included angle of the bending part of the forceps handle 3.1 is 15 degrees, the width is 8.5mm, the length is 159mm, and the outer surface of the handheld part is designed into a strip-shaped fingerprint so as to increase the friction coefficient and facilitate holding. The forceps arm 3.2 is gradually narrowed to 5mm in width and 100mm in length. The two forceps arms 3.2 are respectively provided with a through hole 3.2.1 with threads and a screw rod 3.2.2, the screw rod 3.2.2 penetrates through the two through holes 3.2.1, and one end of the screw rod is provided with a limiting block 3.2.3. The top ends of the two forceps arms 3.2 are respectively provided with a C-shaped forceps head 3.3; the C-shaped opening of the forceps head 3.3 faces the inner sides of the two forceps arms 3.2, and a C-shaped bottom plate 3.3.1 is arranged at the opening along the inner wall of the bottom end of the forceps head 3.3, the C-shaped bottom plate 3.3.1 is inclined and has a width of 7mm, and the bottom end of the inclined plane faces the center of the forceps head 3.3; when the two forceps heads 3.3 are closed, the end parts of the two bottom plates 3.3.1 are connected, and the middle parts of the two bottom plates are hollowed out. Bone tissue holder 3 bottom plate 3.3.1 and tweezers head 3.3 inner wall form safe connecing the region greatly, and bone tissue takes out the back, places this connecing the region greatly, handles bone tissue, and the fretwork that forms between bottom plate 3.3.1 is convenient for bone tissue to punch, and the inclined plane of bottom plate 3.3.1 formation, the discharge of disintegrating slag when being convenient for blood and bone tissue punch, reduce to wash the pollution problems such as the bone tissue drops better of operation such as avoiding.
Example 2
As shown in FIGS. 1-5 and 9-14, the structure of example 2 is substantially the same as that of example 1, except that a blocking plate 2.3.4 is provided outside the grasping piece 2.3.2 of the bone tissue extractor, the thicknesses of the grasping piece 2.3.2 and the blocking plate 2.3.4 are less than 1cm, a sandwich cavity is provided between the grasping piece 2.3.2 and the blocking plate 2.3.4, and a filling piece 2.3.5 is provided in the sandwich cavity. The cavity of the interlayer is provided with a cavity opening 2.3.6, the cavity opening 2.3.6 faces the direction of the splint 2.3.1, the filling piece 2.3.5 is convenient to take and place, and the filling piece 2.3.5 cannot fall into the oral cavity. The filling sheet 2.3.5 is one of absorbent cotton sheet, water swelling type cross-linked polymer sheet and silica gel sheet. The filling sheet 2.3.5 is adsorbed with dry hemostatic. The filling tablet 2.3.5 can be used by soaking in liquid hemostatic, air drying, sterilizing, or directly spraying powder dried hemostatic, or not containing hemostatic. When the bone tissue extractor is used for clamping, the dry filling piece 2.3.5 expands when meeting blood, or is dipped with a liquid hemostatic reagent and distilled water for use and expands, the expanded filling piece 2.3.5 is extruded from the clamping piece 2.3.2 and the leakage hole 2.3.3 of the baffle 2.3.4, the clamping piece 2.3.2 is in direct contact with the bone tissue, the filling piece 2.3.5 extruded from the leakage hole 2.3.3.3 of the clamping piece 2.3.2 not only increases friction force but also is convenient to clamp the bone tissue with an unsmooth edge, the clamping surface of the clamping piece 2.3.2 is similar to a towel surface, the extruded filling piece 2.3.5 is soft in material, the bone tissue is protected, the edge of the taken bone tissue is locally sunk into the extruded filling piece 2.3.5, the clamping is more stable, the falling is further prevented, and the pollution is avoided. The effective components of the hemostatic agent in the filling sheet 2.3.5 can also be dispersed from the leakage hole 2.3.3 to help hemostasis.
The water-swellable crosslinked polymer may be a related material known to be medically usable, such as the related crosslinked polymer mentioned in patent No. 2018110127702, which swells, changes volume, and then is extruded from the orifice 2.3.3 when encountering water, blood, or a hemostatic agent. The hemostatic agent can be Yunnan white drug powder or similar hemostatic and liquid drug.
The unique structure of the bone grafting instrument and the mutual matching of the instruments can reduce the technical sensitivity, increase the success rate of the operation, reduce the difficulty of the operation of doctors, reduce the pain of patients and facilitate the prognosis of the operation in the process of separating, taking out and holding the autologous bones of the oral cavity. Besides being used for autologous bone transplantation of oral and maxillofacial regions, the utility model can also be used for bone transplantation operations of other parts of the whole body, and autologous bone transplantation or allogeneic bone transplantation operations of animal experiments such as small pigs and beagles.
The above is, of course, only a specific application example of the present invention, and the scope of the present invention is not limited in any way. In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by using equivalent substitutions or equivalent transformations fall within the scope of the present invention.

Claims (8)

1. A group of bone grafting instruments is characterized by comprising a bone tissue separator (1), wherein the bone tissue separator (1) comprises a rod-shaped handle (1.1), a connecting rod (1.2) and a cutter head (1.3), the rod-shaped handle (1.1) and the connecting rod (1.2) are positioned on the same axis, and two ends of the connecting rod (1.2) are connected with the front end of the handle (1.1) and the rear end of the cutter head (1.3) respectively; the middle of the cutter head (1.3) is wide, the two ends of the cutter head are narrow, the front end of the cutter head is a flat-end cutting edge (1.3.1), the top surface of the cutter head is a cutting edge surface (1.3.2), and two sides of the cutting edge surface (1.3.2) are respectively provided with a lateral cutting edge (1.3.3);
the bone tissue extractor is characterized by comprising a bone tissue extractor (2), wherein the bone tissue extractor (2) is integrally in a forceps shape and comprises a first forceps body (2a), a second forceps body (2b) and a connecting shaft (2.2), and the first forceps body (2a) and the second forceps body (2b) are hinged through the connecting shaft (2.2) to form a forceps handle (2.1) and a forceps head (2.3); the forceps handle (2.1) drives the forceps head (2.3) to open and close when being opened and closed; the forceps head (2.3) is composed of two splints (2.3.1), the two splints (2.3.1) bend towards the direction of clamping bone tissues, and the whole body is in an arc shape; clamping sheets (2.3.2) are respectively arranged at the top ends of the two clamping plates (2.3.1), and a plurality of leakage holes (2.3.3) are formed in the clamping sheets (2.3.2); the two clamping sheets (2.3.2) are jointed when the forceps handle (2.1) is folded;
a blocking piece (2.3.4) is arranged on the outer side of the clamping piece (2.3.2), an interlayer cavity is arranged between the clamping piece (2.3.2) and the blocking piece (2.3.4), and a filling piece (2.3.5) is arranged in the interlayer cavity;
the forceps comprise a forceps handle (3.1) and two forceps arms (3.2) extending from two ends of an opening of the forceps handle (3.1), wherein the forceps handle (3.1) is bent, and C-shaped forceps heads (3.3) are respectively arranged at the top ends of the two forceps arms (3.2); the C-shaped opening of the forceps head (3.3) faces towards the inner sides of the two forceps arms (3.2), and a C-shaped bottom plate (3.3.1) is arranged at the opening along the inner wall of the bottom end of the forceps head (3.3); when the two forceps heads (3.3) are closed, the end parts of the two bottom plates (3.3.1) are connected, and the middle parts of the two bottom plates are hollowed out;
the C-shaped bottom plate (3.3.1) on the bone tissue holder (3) is an inclined plane, and the bottom end of the inclined plane faces to the center of the forceps head (3.3).
2. The set of bone grafting instruments according to claim 1, characterized in that the sandwich cavity is provided with a cavity opening (2.3.6), the cavity opening (2.3.6) being directed towards the splint (2.3.1).
3. The set of bone grafting devices according to claim 1, characterized in that said filling sheet (2.3.5) is one of a sheet of absorbent cotton, a sheet of cross-linked polymer swellable with water, a sheet of silicone.
4. The set of bone grafting devices according to claim 3, characterized in that said filling sheet (2.3.5) has adsorbed thereon a dry hemostatic agent.
5. The set of bone grafting instruments according to any one of claims 1-4, characterized in that the bone tissue separator (1) comprises a first bone tissue separator (1a), a second bone tissue separator (1b) and a third bone tissue separator (1 c);
the axis of the cutter head (1.3) of the first bone tissue separator (1a) and the axis of the handle (1.1) are positioned on the same straight line;
the cutter head (1.3) of the second bone tissue separator (1b) is bent towards one side of the handle (1.1);
the tool bit (1.3) of the third bone tissue separator (1c) is bent towards the other side of the handle (1.1), and the bending direction is opposite to the bending direction of the tool bit (1.3) of the second bone tissue separator (1 b).
6. The set of bone grafting instruments according to claim 5, characterized in that the axis of the cutting head (1.3) of the second bone tissue separator (1b) forms an angle of 0 ° -40 ° with the axis of the handle (1.1);
the axis of the cutter head (1.3) of the third bone tissue separator (1c) and the axis of the handle (1.1) form an included angle of 0-40 degrees.
7. The set of bone grafting instruments according to claim 1, characterized in that, the inside of the two sides of the forceps handle (2.1) of the bone tissue extractor (2) is respectively provided with a spring leaf (2.1.1), and the two spring leaves (2.1.1) are abutted when the forceps handle (2.1) is folded; the two sides of the forceps handle (2.1) are both in an inward arc shape.
8. The set of bone grafting instruments according to claim 1, characterized in that, the forceps arms (3.2) of the bone tissue holder (3) are respectively provided with a threaded through hole (3.2.1) and a threaded rod (3.2.2), the threaded rod (3.2.2) passes through the two through holes (3.2.1), and one end of the threaded rod is provided with a limit block (3.2.3).
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0833649A (en) * 1994-07-25 1996-02-06 Takayuki Ishizawa Dental pincette
CN2659348Y (en) * 2003-12-12 2004-12-01 李燕 Operation surgical forceps
US7824398B2 (en) * 1995-06-07 2010-11-02 Arthrocare Corporation Electrosurgical systems and methods for removing and modifying tissue
CN203122535U (en) * 2013-01-25 2013-08-14 朱东方 Single-blade gemstone separating cutter
CN205041447U (en) * 2015-10-09 2016-02-24 周晓中 Vertebra lesion tissues draws subassembly
CN205359564U (en) * 2015-12-14 2016-07-06 北京大学第三医院 Preparation pincers are surely got to temporalis manadesma
CN110811759A (en) * 2019-11-28 2020-02-21 四川大学华西医院 Cartilage extractor for plastic surgery
CN211049451U (en) * 2019-06-24 2020-07-21 杭州索德医疗设备有限公司 Medical tweezers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0833649A (en) * 1994-07-25 1996-02-06 Takayuki Ishizawa Dental pincette
US7824398B2 (en) * 1995-06-07 2010-11-02 Arthrocare Corporation Electrosurgical systems and methods for removing and modifying tissue
CN2659348Y (en) * 2003-12-12 2004-12-01 李燕 Operation surgical forceps
CN203122535U (en) * 2013-01-25 2013-08-14 朱东方 Single-blade gemstone separating cutter
CN205041447U (en) * 2015-10-09 2016-02-24 周晓中 Vertebra lesion tissues draws subassembly
CN205359564U (en) * 2015-12-14 2016-07-06 北京大学第三医院 Preparation pincers are surely got to temporalis manadesma
CN211049451U (en) * 2019-06-24 2020-07-21 杭州索德医疗设备有限公司 Medical tweezers
CN110811759A (en) * 2019-11-28 2020-02-21 四川大学华西医院 Cartilage extractor for plastic surgery

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Patentee before: BEIJING STOMATOLOGICAL HOSPITAL, CAPITAL MEDICAL University