CN111839704A - Degradable and absorbable magnesium alloy rib fracture fixing plate and fixing instrument system - Google Patents
Degradable and absorbable magnesium alloy rib fracture fixing plate and fixing instrument system Download PDFInfo
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- CN111839704A CN111839704A CN202010802000.9A CN202010802000A CN111839704A CN 111839704 A CN111839704 A CN 111839704A CN 202010802000 A CN202010802000 A CN 202010802000A CN 111839704 A CN111839704 A CN 111839704A
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- 208000027790 Rib fracture Diseases 0.000 title claims abstract description 75
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 53
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- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 208000010392 Bone Fractures Diseases 0.000 description 18
- 206010017076 Fracture Diseases 0.000 description 16
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
- A61B17/8076—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones for the ribs or the sternum
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8085—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with pliable or malleable elements or having a mesh-like structure, e.g. small strips
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/02—Inorganic materials
- A61L31/022—Metals or alloys
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L31/148—Materials at least partially resorbable by the body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00004—(bio)absorbable, (bio)resorbable or resorptive
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Abstract
The invention relates to a degradable and absorbable magnesium alloy rib fracture fixing plate and a fixing instrument system. The degradable and absorbable magnesium alloy rib fracture fixation plate is made of biodegradable Mg-Nd-Zn-Zr magnesium alloy, is of a rectangular sheet structure, is 1.0-2.8mm thick, is provided with at least two rows of fixation holes, is provided with a row of arc-shaped gaps at the upper edge and the lower edge respectively, and is also provided with through holes or strip-shaped grooves. The fixing instrument system comprises a rib threading hook and a fixing plate, wherein the rib threading hook is provided with a handle and a crochet hook, and the crochet hook comprises a crochet hook rod and a U-shaped crochet hook head which is connected with the crochet hook rod at 90 degrees. The rib fracture fixing device of the invention not only can achieve the effects of fixing rib fracture and promoting the healing of rib fracture, but also can maximally preserve the compliance of ribs or chest walls and reduce the discomfort of local foreign matters and tissue reaction, so that the operative injury is reduced, the operation is simple and convenient, the device is more in line with the principle of the current minimally invasive operation, and the required cost is reduced compared with the foreign like products.
Description
Technical Field
The invention relates to a medical surgical implantation instrument, in particular to a degradable and absorbable magnesium alloy rib fracture fixing plate and a fixing instrument system.
Background
Rib fractures are the most common chest trauma, and tens of thousands of rib fracture patients are treated by surgery every year. Products related to the fixation of rib fractures are: 1. import of products: A. absorbable products: is made of polymer materials such as PLA and the like. For example, the two-end sharp shape can be inserted into the two broken ends of the rib to play a role in fixing the intramedullary fixation nail of the rib. There are also absorbable rib fixation plates which are flat, long, plate-like, slightly curved in the longitudinal direction, and have fixation holes along the longitudinal axis thereof, and which are fixed to the fractured rib by drilling holes in the rib and using absorbable screws or sutures to fix the fractured rib (currently, the products have not entered the market in china). B. Non-absorbable products: the shape and the fixing mode of the rib fixing plate made of the strong titanium alloy are basically the same as those of an absorbable rib fixing plate, but are slightly thinner. 2. Domestic products: currently, there is no absorbable non-metallic or metallic rib fracture fixation product. The existing product is a bone fracture plate surrounded by marmem or titanium alloy ribs. The size, shape and using method are basically similar, namely a purpose-made surgical instrument is utilized, and the shapes of the metal plate and the encircling arm are changed to enable the metal plate to encircle the rib so as to achieve the effect of rib fracture fixation.
The absorbable rib intramedullary nail has the defects of difficult installation, poor fixing effect, high cost and the like, and is rarely used clinically. The absorbable rib fixing plate does not enter the Chinese market, has the defects of complex installation procedure, large damage, inadaptation to minimally invasive surgery, high cost and the like as the imported titanium alloy rib fixing plate, has the defects of no absorption, local foreign body sensation, possible allergy and discomfort of a steel plate and the like of a metal product, and is difficult to popularize and apply because the steel plate needs to be taken out after the surgery of part of patients. Although the domestic rib bone-knitting steel plate is easier to mount than the imported steel plate, the separation of the rib and the intercostal muscle is needed to damage the periosteum and the intercostal muscle of the rib, the blood supply and the regeneration of the rib are influenced, so that the healing of rib fracture is influenced, the rib is extruded when the rib is encircled, so that the rib is deformed to cause new injury or fracture, the metal encircling the rib fixer is wider and thick, the metal hardness is higher, so that the compliance of a local chest wall is reduced, the influence on respiration is relatively larger, and the local foreign matters and discomfort are stronger, so that partial patients strongly require to take out the foreign matters again through an operation.
The patent document CN203935263U, published on the japanese reference 2014.11.12, discloses a locking plate system for treating rib fracture, which comprises a rib locking plate and screws, wherein the inner surface of the rib locking plate is formed into a shape imitating the shape of a rib in order to make the locking plate better fit with the rib; the cross section of the rib locking plate is designed to be in a crescent shape with a low notch, and the inner surface of the rib locking plate forms a shape imitating the shape of a rib; n locking holes are uniformly distributed on the rib locking plate in the longitudinal direction; the screw is a round end countersunk head screw with a groove at one end. Has the advantages that: more snugly, effectively reduces the tissue irritation and the subcutaneous foreign body sensation, improves the stability of thoracic cavity fixation, ensures that the screw is easy to penetrate into the body, forms a certain angle between the screw and the plate and effectively avoids the subcostal nerve. Patent document CN203042415U, bulletin No. 2013.07.10, discloses a rib bone plate, which includes a bone plate body, wherein two opposite sides of the bone plate body are provided with encircling arms, one side of each encircling arm is connected with the bone plate body, the other side of each encircling arm is provided with a fixing plate, each encircling arm is made of an elastic material, and one side of each encircling arm corresponding to two ends of the bone plate body is provided with a fixing tooth. Has the advantages that: the structure is simple, the fixing device is made of memory alloy or titanium alloy elastic materials according to the anatomical and mechanical principles of human ribs, the clinical conditions of various rib fractures are considered, and the fixing device has good fixing effect on comminuted fracture, large-span fracture and multiple fractures in a short distance. Patent document CN208552001U, publication No. 2019.03.01, discloses a costal plate for fixing a fracture under an endoscope, which comprises a costal plate body and costal claws arranged at the edge of the costal plate body, wherein the costal plate body is matched with the contour curve of a rib, and the costal claws comprise a first costal claw positioned at the middle position of the costal plate body and a plurality of second costal claws symmetrically arranged at two sides of the first costal claw on the costal plate body; the first rib claw is in an ") type structure, and the second rib claw is in an S type structure; one end of the rib plate body is provided with a convex clamping portion, and the other end of the rib plate body is provided with a clamping groove matched with the clamping portion. Has the advantages that: the rib plates can be combined and spliced, and the requirements of patients with different injuries on rib plates with different sizes can be met. However, the structural features and fixing modes of the rib fracture fixing devices are the same as those of the products on the market.
Generally speaking, a rib fracture fixation device which is simple to mount, conforms to the trend of minimally invasive surgery, has good fixation effect, can promote fracture recovery, has small damage and influence on patients and has low cost is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the degradable and absorbable magnesium alloy rib fracture fixing plate and the fixing instrument system which are simple to install, accord with the trend of minimally invasive surgery, have good fixing effect, can promote fracture recovery, have small damage and influence on patients and have lower cost.
In a first aspect, the invention provides a rib fracture fixation instrument system, which comprises a degradable and absorbable magnesium alloy rib fracture fixation plate and a rib threading hook; the degradable and absorbable magnesium alloy rib fracture fixing plate is made of biodegradable Mg-Nd-Zn-Zr magnesium alloy and is provided with a fixing plate body, the fixing plate body is of a rectangular sheet structure in shape and is provided with at least two rows of fixing holes, and the two rows of fixing holes are respectively arranged close to the upper edge and the lower edge of the fixing plate body; the upper edge and the lower edge of the fixing plate body are respectively provided with a row of arc-shaped notches, and a notch is arranged between adjacent fixing holes in the same row; the rib threading hook is provided with a handle and a crochet hook connected with the handle, the crochet hook comprises a crochet hook rod and a U-shaped crochet hook head, one end of the crochet hook head is connected with the crochet hook rod by 90 degrees, and the other end of the crochet hook head is a free needle point with a threading hole.
As a preferred example of the present invention, the thickness of the fixing plate body is 1.0-2.8 mm.
As another preferred example of the present invention, the fixing plate body is provided with a plurality of through holes.
More preferably, the plurality of through holes are arranged in one to four rows, and the arrangement direction is consistent with the arrangement direction of the fixing holes.
As another preferred example of the present invention, the fixing plate body is provided with a strip-shaped groove on a surface thereof.
More preferably, the length direction of the strip-shaped groove is consistent with the arrangement direction of the fixing holes.
As another preferred example of the present invention, the fixing plate body is curved in an arc shape in a transverse section, or curved in an arc shape in both a longitudinal direction and a transverse section.
In a second aspect, the invention provides a degradable and absorbable magnesium alloy rib fracture fixation plate, which is made of biodegradable Mg-Nd-Zn-Zr magnesium alloy and is provided with a fixation plate body, wherein the fixation plate body is in a rectangular sheet structure in shape and is provided with at least two rows of fixation holes, and the two rows of fixation holes are respectively arranged close to the upper edge and the lower edge of the fixation plate body; the upper edge and the lower edge of the fixing plate body are respectively provided with a row of arc-shaped notches, and a notch is arranged between adjacent fixing holes in the same row; the thickness of the fixing plate body is 1.0-2.8 mm.
As a preferred example of the present invention, the fixing plate body is provided with a plurality of through holes or a plurality of strip-shaped grooves on the surface.
As another preferred example of the present invention, the fixing plate body is curved in an arc shape in a transverse section, or curved in an arc shape in both a longitudinal direction and a transverse section.
Based on abundant clinical experience and careful observation and thinking, the inventor of the application proposes that the degradable magnesium alloy with good mechanical property and biocompatibility and bone promoting function is adopted to replace other PLA degradable high polymer materials and non-degradable metal materials or non-metal materials to manufacture the fixing plate for rib fracture, and invents that the rib threading hook fixes the fixing plate of the invention through a small incision suture, compared with the rib fracture fixing plate in the prior art, the fixing plate has the following advantages:
1. the fixing plate has high strength and good elastoplasticity, so that a light and thin metal sheet can be manufactured, and meanwhile, the rib threading hook threading fixation with the U-shaped hook needle and the hook needle rod connected in a 90-degree manner is adopted, so that a small incision can be made, the surgical wound is smaller, the wound infection risk is reduced, the surgical operation is simple and convenient, and the principle of the current minimally invasive surgery is better met.
2. Because the fixing plate can be made into a light and thin metal sheet with stronger plasticity, the fixing plate is convenient to be better attached and fixed with the rib, is not easy to shift after being fixed, and can obtain the effect of fixing the rib fracture with firmness and elasticity.
3. Because the fixing plate can be made into a thinner metal sheet with stronger plasticity, the compliance of the ribs or the chest wall can be furthest preserved, and the local foreign body discomfort and tissue reaction are relieved.
4. Because the fixed plate possesses good intensity, consequently can further set up through-hole or recess but guarantee that plate body intensity still satisfies the demand on the fixed plate, the design of through-hole or recess can reduce the material that needs the absorption, increase the area that the absorbable material was absorbed to the tissue, improves the plasticity of plate body simultaneously.
5. In order to further improve the plasticity of the plate body, the upper edge and the lower edge of the fixing plate are respectively provided with a notch, and the notches can also be used for fixing a suture, so that the flexibility of the fixing mode of the fixing plate is improved, and a better fixing effect is facilitated to be obtained.
6. Because the fixed plate is made of biodegradable magnesium alloy, the wound healing can be promoted, the antibacterial and bactericidal effects are achieved, and the fracture healing time is shorter (shortened by more than 20%).
7. The cost of the device system consisting of the degradable and absorbable magnesium alloy rib fracture fixing plate and the rib threading hook is lower than that of a foreign degradable and absorbable fixing plate product.
In general, the invention fills the blank that degradable and absorbable magnesium alloy materials are used for rib fracture fixation at home and abroad, provides a complete set of rib fracture fixation instrument system, and has the technical effects of simple installation, accordance with the trend of minimally invasive surgery, good fixation effect, promotion of fracture recovery, small damage and influence on patients and low cost.
Drawings
FIG. 1 is a front view of a degradable and absorbable magnesium alloy rib fracture fixation plate of example 1.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
FIG. 3 is a top view of the degradable magnesium alloy rib fracture fixation plate of example 1.
FIG. 4 is a perspective view of a degradable and absorbable magnesium alloy rib fracture fixation plate according to example 1.
FIG. 5 is a cross-sectional view of a degradable and absorbable magnesium alloy rib fracture fixation plate according to example 2.
FIG. 6 is a perspective view of a degradable and absorbable magnesium alloy rib fracture fixation plate in accordance with example 3 of the present invention.
FIG. 7 is a perspective view of the rib crossing wire hook of embodiment 4.
FIG. 8 is a perspective view of the rib crossing wire hook of the embodiment 5.
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings.
The reference numerals and components referred to in the drawings are as follows:
100. degradable and absorbable magnesium alloy rib fracture fixing plate
1. Fixing plate body 2, fixing hole
3. Through hole 4. gap
5. Strip-shaped groove
200. Rib wire-passing hook
6. Handle 7. crochet hook
71. Hook needle rod 72, hook needle head
721. Threading hole
Example 1 degradable and absorbable magnesium alloy rib fracture fixation plate (I) of the invention
Referring to fig. 1 to 4, fig. 1 is a front view of a degradable and absorbable magnesium alloy rib fracture fixation plate of example 1, fig. 2 is a sectional view taken along the direction a-a of fig. 1, fig. 3 is a top view of the degradable and absorbable magnesium alloy rib fracture fixation plate of example 1, and fig. 4 is a perspective view of the degradable and absorbable magnesium alloy rib fracture fixation plate of example 1. The degradable and absorbable magnesium alloy rib fracture fixing plate is provided with a fixing plate body 1, wherein the fixing plate body 1 is of a rectangular sheet structure in shape, and the longitudinal and cross sections of the fixing plate body are both arc-shaped and bent. Two rows of fixing holes 2 and two rows of through holes 3 are arranged on the fixing plate body 1, and the arrangement directions of the two rows of fixing holes 2 and the two rows of through holes 3 are consistent with the arrangement direction of the transverse axis of the rib. One of the two rows of fixing holes 2 is arranged close to the upper edge of the fixing plate body 1, and the other row of fixing holes 2 is arranged close to the lower edge of the fixing plate body 1. The fixing holes 2 are circular holes penetrating the front and rear surfaces of the fixing plate body 1. Two rows of through holes 3 are positioned between two rows of fixing holes 2. The fixing holes 2 of each row are arranged at equal intervals, and the through holes 3 of each row are also arranged at equal intervals. The upper edge and the lower edge of the fixing plate body 1 are respectively provided with a row of arc-shaped notches 4, and the notches 4 in each row are arranged at equal intervals. A gap 4 is arranged between the adjacent fixing holes 2 in the same row of fixing holes. The surface of the fixing plate body 1 is flat and smooth.
The fixing plate body 1 is made of biodegradable Mg-Nd-Zn-Zr magnesium alloy, and the thickness of the fixing plate body 1 is 1.0-2.8 mm.
Example 2 degradable and absorbable magnesium alloy rib fracture fixation plate (II) of the invention
Referring to fig. 5, fig. 5 is a cross-sectional view of a degradable magnesium alloy rib fracture fixation plate according to example 2. The degradable and absorbable magnesium alloy rib fracture fixation plate of the embodiment is basically the same as the degradable and absorbable magnesium alloy rib fracture fixation plate described in embodiment 1, except that: the fixing plate body 1 is in a rectangular sheet structure, the cross section of the fixing plate body is in arc bending, and the fixing plate body is longitudinally free of arc bending.
Example 3 degradable and absorbable magnesium alloy rib fracture fixation plate (III) of the invention
Referring to fig. 6, fig. 6 is a perspective view of a degradable and absorbable magnesium alloy rib fracture fixation plate according to embodiment 3 of the present invention. The degradable and absorbable magnesium alloy rib fracture fixation plate of the embodiment is basically the same as the degradable and absorbable magnesium alloy rib fracture fixation plate described in embodiment 1, except that: the outer surface of the fixing plate body 1 is respectively provided with a strip-shaped groove 5 at the positions of the two rows of through holes 3, and the length direction of the strip-shaped groove 5 is consistent with that of the fixing plate body 1.
EXAMPLE 4 Rib fracture fixation device System of the present invention
The rib fracture fixation instrument system comprises a degradable and absorbable magnesium alloy rib fracture fixation plate 100 and a rib threading hook 200 according to embodiment 1.
Referring to fig. 7, fig. 7 is a perspective view of the rib crossing hook according to embodiment 4. The rib threading hook 200 is provided with a handle 6 and a crochet hook 7 connected with the handle 6. The crochet needle 7 includes a crochet needle bar 71 and a crochet needle head 72. The hook needle rod 71 is cylindrical, the hook needle head 72 is U-shaped, one end of the hook needle head 72 is connected with the hook needle rod 71 at 90 degrees, the other end is a free needle point, and an oval threading hole 721 is arranged at the needle point. When the operator holds the handle 6 with the crochet hook 7 directed to the front of the operator's body and the opening of the "U" shape of the crochet hook head 72 is directed upward, the crochet hook head 72 is located on the right side of the crochet hook shaft 71 with respect to the crochet hook shaft 71.
EXAMPLE 5 Rib fracture fixation device System of the present invention
The rib fracture fixation instrument system comprises a degradable and absorbable magnesium alloy rib fracture fixation plate 100 and a rib threading hook 200 according to embodiment 1.
Referring to fig. 8, fig. 8 is a perspective view of the rib crossing wire of embodiment 5. The rib threading hook 200 is provided with a handle 6 and a crochet hook 7 connected with the handle 6. The crochet needle 7 includes a crochet needle bar 71 and a crochet needle head 72. The hooking stem 71 is cylindrical and the hooking head 72 is "U" shaped. The axis of the shank 71 is perpendicular to the plane formed by the "U" shape of the shank 72. The free needle point of the hook needle 72 is provided with an oval-shaped threading hole 721. When the operator holds the handle 6 with the crochet hook 7 directed to the front of the operator's body and the opening of the "U" shape of the crochet hook head 72 is directed upward, the crochet hook head 72 is located on the left side of the crochet hook shaft 71 with respect to the crochet hook shaft 71.
For the above examples 1-5, it is noted that:
the method for applying the rib fracture fixation instrument system to perform rib fracture fixation comprises the following steps: the method comprises the steps of making a minimally invasive small incision at the position near the fracture, finding the fracture position of the rib, dissociating the fracture position to the fracture position by using a rib thread passing hook 200, enabling the wire to tightly attach to the upper edge or the lower edge of the rib above or below the fracture position of the rib and pass through the rear part of the rib, taking the wire out of the rear part of the rib, taking a plurality of wires by the same method to be respectively distributed at the upper part, the adjacent part, the lower part, the adjacent part, the fracture position of the rib and other points of the fracture position of the rib, placing the degradable and absorbable magnesium alloy rib fracture fixing plate 100, enabling the wires to pass through the corresponding fixing holes 2 or gaps 4, and tying the degradable and absorbable magnesium alloy rib fracture fixing plate 100.
The degradable and absorbable magnesium alloy rib fracture fixing plate and the instrument system formed by the degradable and absorbable magnesium alloy rib fracture fixing plate and the rib threading hook break through the current situation of the current clinical rib fracture fixing device and are a breakthrough for clinical rib fracture treatment. The magnesium alloy is made of biodegradable Mg-Nd-Zn-Zr magnesium alloy. The Mg-Nd-Zn-Zr magnesium alloy has the characteristics of light material, good tissue compatibility, automatic degradation according to the designed speed, and magnesium ion as a degradation component, magnesium is one of bone components, not only has the function of promoting the healing of injured bone tissues (the fracture healing time is shortened by more than 20%), but also has the functions of inhibiting bacteria and sterilizing by local slightly alkaline environment generated by the degradation of the magnesium material and released Zn and Zr ions, and can reduce the probability of wound infection. In addition, the adopted magnesium alloy also has 80 percent of high strength and certain elastoplasticity (the tensile strength is 300MPa, the yield strength is 200MPa, the elongation is 20 percent) of 316L medical stainless steel, and a rib fracture fixing effect with firmness and elasticity can be obtained by using a lighter and thin metal sheet; reduce foreign body discomfort and tissue reaction in the patient; further, be equipped with through-hole 3 and bar groove 5 at the fixed plate body, also can guarantee still that intensity satisfies clinical demand, through-hole 3 and bar groove 5 have still further increased fixed plate body 1's plasticity moreover, the mode of arranging of this application is preferred to the mode of arranging of through-hole 3 and bar groove 5 for fixed plate body 1's intensity keeps even with the plasticity, and through-hole 3 and bar groove 5 still can reduce the material that needs the absorption, increase the area that the tissue absorbed absorbable material.
The fixing plate body 1 is rectangular and flaky in shape, so that the fixing plate body has certain elasticity and deformability; the fixing plate body 1 is curved in an arc shape at the cross section and is consistent with the physiological shape of the ribs; the fixing plate body 1 can also be provided with a longitudinal small arc which is matched with the arc in the vertical axis direction of the rib; the design makes the fixing plate body 1 and the rib have good fitting performance, and the fixing plate is easy to fix and not easy to shift.
The hook needle head 72 of the rib threading hook 200 adopts a U-shaped design which is convenient to cross over the rib in shape, and is assisted by a hook needle rod 71 which is connected with one end (left end or right end) of a U-shaped plane opening at 90 degrees, the other end is a free end, the free end is in a needle point shape, a threading hole 721 is arranged at the position close to the needle point, and the threading hole can cross over the rib with a thread. The advantages of this design are three: firstly, ribs and intercostal muscles do not need to be separated, so that the injury is reduced, good blood supply of an affected part is reserved, and the repair of the fracture is facilitated; secondly, holes do not need to be drilled on the ribs or the ribs are not excessively embraced or pressed to cause secondary damage to the ribs, so that the advantage of the bone fracture plate on patients with osteoporosis is more obvious; thirdly, the narrow space between the chest wall and the muscle group outside the chest wall can be fully utilized to complete the operation, and the current popular principle of minimally invasive surgery is met; in the four operations, any suture position can be conveniently dissociated from the small incision, the suture can conform to the shape of the rib after being threaded, the suture can be accurately and quickly taken out from the position on the opposite side of the rib, the operation time is obviously shortened, and the operation difficulty is reduced.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and additions can be made without departing from the method of the present invention, and these modifications and additions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A rib fracture fixation instrument system is characterized by comprising a degradable and absorbable magnesium alloy rib fracture fixation plate and a rib threading hook; the degradable and absorbable magnesium alloy rib fracture fixing plate is made of biodegradable Mg-Nd-Zn-Zr magnesium alloy and is provided with a fixing plate body, the fixing plate body is of a rectangular sheet structure in shape and is provided with at least two rows of fixing holes, and the two rows of fixing holes are respectively arranged close to the upper edge and the lower edge of the fixing plate body; the upper edge and the lower edge of the fixing plate body are respectively provided with a row of arc-shaped notches, and a notch is arranged between adjacent fixing holes in the same row; the rib threading hook is provided with a handle and a crochet hook connected with the handle, the crochet hook comprises a crochet hook rod and a U-shaped crochet hook head, one end of the crochet hook head is connected with the crochet hook rod by 90 degrees, and the other end of the crochet hook head is a free needle point with a threading hole.
2. The rib fracture fixation instrument system of claim 1, wherein the thickness of the fixation plate body is 1.0-2.8 mm.
3. The rib fracture fixation instrument system of claim 1, wherein the fixation plate body has a plurality of through holes.
4. The rib fracture fixation instrument system of claim 3, wherein the plurality of through holes are arranged in one to four rows in a direction corresponding to the direction of the fixation holes.
5. The rib fracture fixation instrument system of claim 1, wherein the fixation plate body is provided with a strip-shaped groove on a surface thereof.
6. The rib fracture fixation instrument system of claim 5, wherein the lengthwise direction of the strip-shaped slot is aligned with the direction of the fixation holes.
7. The rib fracture fixation instrument system of claim 1, wherein the fixation plate body is curved in shape that is arcuate in transverse cross-section or arcuate in both longitudinal and transverse cross-sections.
8. A degradable and absorbable magnesium alloy rib fracture fixation plate is characterized by being made of biodegradable Mg-Nd-Zn-Zr magnesium alloy and provided with a fixation plate body, wherein the fixation plate body is of a rectangular sheet structure in shape and is provided with at least two rows of fixation holes, and the two rows of fixation holes are respectively arranged close to the upper edge and the lower edge of the fixation plate body; the upper edge and the lower edge of the fixing plate body are respectively provided with a row of arc-shaped notches, and a notch is arranged between adjacent fixing holes in the same row; the thickness of the fixing plate body is 1.0-2.8 mm.
9. The magnesium alloy rib fracture fixation plate capable of being degraded and absorbed according to claim 8, wherein the fixation plate body is provided with a plurality of through holes or a plurality of strip-shaped grooves on the surface.
10. The degradable magnesium alloy rib fracture fixation plate of claim 8, wherein the fixation plate body is curved in an arc shape in a transverse section or curved in an arc shape in a longitudinal direction and a transverse section.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010802000.9A CN111839704A (en) | 2020-08-11 | 2020-08-11 | Degradable and absorbable magnesium alloy rib fracture fixing plate and fixing instrument system |
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| CN202010802000.9A CN111839704A (en) | 2020-08-11 | 2020-08-11 | Degradable and absorbable magnesium alloy rib fracture fixing plate and fixing instrument system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112617709A (en) * | 2020-11-12 | 2021-04-09 | 华帝股份有限公司 | Dish washer with skirting board structure |
| CN114451983A (en) * | 2021-12-30 | 2022-05-10 | 宁波慈北医疗器械有限公司 | Hand and foot surgery fixing system based on magnesium-based alloy or zinc-based alloy |
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| CN204581475U (en) * | 2015-03-13 | 2015-08-26 | 上海交通大学 | Biodegradable magnesium alloy claw type rib connecting plate |
| CN105011999A (en) * | 2014-04-16 | 2015-11-04 | 上海交通大学医学院附属新华医院 | Fixing plate and wire threading hook |
| WO2020094046A1 (en) * | 2018-11-07 | 2020-05-14 | 广州科荟泽生物科技有限公司 | Surgical suture device |
| CN212661906U (en) * | 2020-08-11 | 2021-03-09 | 李国庆 | Degradable and absorbable magnesium alloy rib fracture fixing plate and fixing instrument system |
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| CN105011999A (en) * | 2014-04-16 | 2015-11-04 | 上海交通大学医学院附属新华医院 | Fixing plate and wire threading hook |
| CN204581475U (en) * | 2015-03-13 | 2015-08-26 | 上海交通大学 | Biodegradable magnesium alloy claw type rib connecting plate |
| WO2020094046A1 (en) * | 2018-11-07 | 2020-05-14 | 广州科荟泽生物科技有限公司 | Surgical suture device |
| CN212661906U (en) * | 2020-08-11 | 2021-03-09 | 李国庆 | Degradable and absorbable magnesium alloy rib fracture fixing plate and fixing instrument system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112617709A (en) * | 2020-11-12 | 2021-04-09 | 华帝股份有限公司 | Dish washer with skirting board structure |
| CN114451983A (en) * | 2021-12-30 | 2022-05-10 | 宁波慈北医疗器械有限公司 | Hand and foot surgery fixing system based on magnesium-based alloy or zinc-based alloy |
| CN114451983B (en) * | 2021-12-30 | 2022-07-29 | 宁波慈北医疗器械有限公司 | Hand and foot surgery fixing system based on magnesium-based alloy or zinc-based alloy |
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