CN108392259B - Antibiotic bone cement spacer mould - Google Patents
Antibiotic bone cement spacer mould Download PDFInfo
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- CN108392259B CN108392259B CN201810004927.0A CN201810004927A CN108392259B CN 108392259 B CN108392259 B CN 108392259B CN 201810004927 A CN201810004927 A CN 201810004927A CN 108392259 B CN108392259 B CN 108392259B
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- China
- Prior art keywords
- pipe groove
- pair
- bone cement
- lantern ring
- groove
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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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8833—Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means
- A61B17/8836—Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means for heating, cooling or curing of bone cement or fluid fillers
Abstract
The invention discloses an antibiotic bone cement spacer die, which comprises: the surface of the base is vertically provided with a pair of baffles which are arranged in parallel relatively; the brackets are arranged on the surface of the base and positioned between the pair of baffles, and clamps are arranged at the upper ends of the brackets; the trench, it is for opening the cylindric structure that has the bar hole on the lateral wall, the trench level sets up, and by the clip centre gripping, the trench both ends offset with the surface of a pair of baffle respectively. The spacer mold can change the length of the spacer mold according to the requirement, and has the advantages of simple structure, convenient use and convenient disinfection.
Description
Technical Field
The present invention relates to the field of medical devices. More specifically, the present invention relates to an antibiotic bone cement spacer mold.
Background
After the operation of fixing the intramedullary pin, if infection occurs, the intramedullary pin needs to be taken out for debridement. Clinical findings suggest that space must be occupied by other objects of the same size, or that soft tissue twinning can occur, affecting secondary surgery. Antibiotic bone cement spacers are widely used because they are able to form localized high concentrations of antibiotic. To prevent infection and ensure sterility, the placeholder needs to be fabricated on site in the operating room. However, some current placeholder molds are disposable, creating significant economic stress for the patient. Some space holders are not disposable, but cannot adjust the length according to the needs, are inconvenient to place cables, have large volume, cannot be directly placed into a sterilizing pot for sterilization, and are still inconvenient to use.
Disclosure of Invention
One object of the present invention is to provide an antibiotic bone cement spacer mold which can adjust the length of the spacer mold as required, and which has a simple structure, is convenient to use, and is convenient to sterilize.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided an antibiotic bone cement spacer mold comprising:
the surface of the base is vertically provided with a pair of baffles which are arranged in parallel relatively;
the brackets are arranged on the surface of the base and positioned between the pair of baffles, and clamps are arranged at the upper ends of the brackets;
the trench, it is for opening the cylindric structure that has the bar hole on the lateral wall, the trench level sets up, and by the clip centre gripping, the trench both ends offset with the surface of a pair of baffle respectively.
Preferably, the antibiotic bone cement spacer die is characterized in that the strip-shaped hole is arranged along the axial direction of the pipe groove and is equal to the length of the pipe groove.
Preferably, the antibiotic bone cement spacer mould, the support with the base can be dismantled and be connected, the baffle with the base can be dismantled and be connected.
Preferably, the antibiotic bone cement spacer mould is provided with scales on the outer wall of the pipe groove.
Preferably, the antibiotic bone cement spacer mould, the clip includes a pair of arc sheetmetal that sets up relatively, the radian of arc sheetmetal with the outer wall of tube seat matches, the outside of a pair of arc sheetmetal all is connected with the one end of a spring, the other end of spring is fixed on the support, the spring is in compression state.
Preferably, the antibiotic bone cement spacer mold further comprises:
the sliding plug comprises an inner circular sheet and an outer lantern ring, the inner circular sheet is located in the pipe groove, the diameter of the inner circular sheet is equal to that of the pipe groove, the outer lantern ring is sleeved outside the pipe groove, the outer lantern ring is fixed on the inner circular sheet at the position of the strip-shaped hole, and the outer lantern ring can slide along the pipe groove outside the pipe groove and can drive the inner circular sheet to move inside the pipe groove;
the pipe groove comprises a plurality of sliding grooves, the sliding grooves are formed in the outer wall of the pipe groove and extend along the axial direction of the pipe groove, a plurality of grooves are formed in the bottom of each sliding groove at intervals and conform to a spherical shape, the centers of the grooves correspond to the positions of scales, an elastic rod is arranged at the position, corresponding to the sliding grooves, of the outer lantern ring, one end, extending into the sliding grooves, of each elastic rod is provided with a ball, and the radius of each ball is equal to that of each groove.
The invention at least comprises the following beneficial effects:
1. the invention has simple structure, convenient cable wire placement, convenient filling of antibiotic bone cement and lower cost.
2. The invention has small volume and easy disassembly, and is convenient to put into a sterilizing pot for sterilization.
3. The length of the die can be adjusted according to the requirement, so that the length of the spacer is adjusted, and the spacer meets various different requirements.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the tube nest of the present invention;
FIG. 3 is a schematic view of the construction of the clip and bracket of the present invention;
FIG. 4 is a schematic view of the sliding closure of the present invention;
fig. 5 is a schematic view showing the structure of the elastic rod and the ball according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1, the present invention provides an antibiotic bone cement spacer mold comprising:
the device comprises a base 1, a pair of baffles 2 and a plurality of connecting rods, wherein the pair of baffles 2 are vertically arranged on the surface of the base 1 and are oppositely and parallelly arranged;
the brackets 4 are arranged on the surface of the base 1 and positioned between the pair of baffles 2, and clamps are arranged at the upper ends of the brackets 4;
the pipe groove 3 is a cylindrical structure with a strip-shaped hole formed in the side wall, the pipe groove 3 is horizontally arranged and clamped by the clamp, and two ends of the pipe groove 3 are respectively abutted to the surfaces of the pair of baffles 2.
In above-mentioned technical scheme, base 1 level sets up, and support 4 sets up on base 1, is equipped with the clip on support 4, clip centre gripping chase 3 for chase 3 is parallel with base 1, and 3 both ends of chase are supported by baffle 2 and are kept off, and 3 lateral walls of chase are equipped with the bar hole. The diameter and length of the canal 3 are the same as those of the intramedullary nail to be replaced. When the antibiotic bone cement spacer is manufactured, firstly, a proper pipe groove 3 is selected according to the length and the diameter of a patient bone marrow needle, the pipe groove 3 is placed into a sterilizing pot for sterilization, then the pipe groove 3 is fixed on a support 4, a cable wire is fixed between two baffles 2, then the antibiotic bone cement is filled into the pipe groove 3 from the strip-shaped hole, the cable wire is buried in the antibiotic bone cement, and the antibiotic bone cement spacer is obtained after the antibiotic bone cement is formed. The cable fixing device is simple in structure, convenient to operate and convenient to fix the cable.
In another technical solution, in the antibiotic bone cement spacer mold, the strip-shaped hole is arranged along the axial direction of the tube groove 3 and has the same length as the tube groove 3, as shown in fig. 2. Here, such an arrangement facilitates uniform filling of the antibiotic bone cement.
In another technical scheme, the antibiotic bone cement spacer mould, the support 4 with the base 1 is dismantled and is connected, the baffle 2 with the base 1 is dismantled and is connected. Here, the detachable connection may be a threaded connection, which facilitates the sterilization of the components after they are detached.
In another technical scheme, the antibiotic bone cement spacer mould is provided with scales on the outer wall of the pipe groove 3. Here, it is convenient to select a desired length of the tube groove 3.
In another technical solution, the antibiotic bone cement spacer mold comprises a pair of arc-shaped metal sheets 41 arranged oppositely, the radian of the arc-shaped metal sheets 41 is matched with the outer wall of the pipe groove 3, the outer sides of the pair of arc-shaped metal sheets 41 are both connected with one end of a spring 42, the other end of the spring 42 is fixed on the bracket 4, and the spring 42 is in a compressed state, as shown in fig. 3. Here, there is provided an implementation of a clip in which the pipe chase 3 is held by a pair of arc-shaped metal pieces 41 and supported by springs 42 outside the arc-shaped metal pieces 41, so that the clip can securely hold the pipe chase 3 of various diameters all the time, resulting in good adaptability of the clip.
In another technical solution, the antibiotic bone cement spacer mold, as shown in fig. 4-5, further comprises:
the sliding plug piece 5 comprises an inner circular piece 51 and an outer lantern ring 52, wherein the inner circular piece 51 is positioned in the pipe groove 3, the diameter of the inner circular piece is equal to that of the pipe groove 3, the outer lantern ring 52 is sleeved outside the pipe groove 3, the outer lantern ring 52 is fixed at the position of the strip-shaped hole in the inner circular piece 51, and the outer lantern ring 52 can slide along the pipe groove 3 outside the pipe groove 3 and can drive the inner circular piece 51 to move inside the pipe groove 3;
the pipe fitting comprises a plurality of sliding grooves, the sliding grooves are formed in the outer wall of the pipe fitting 3 and extend along the axial direction of the pipe fitting 3, a plurality of grooves are formed in the bottoms of the sliding grooves at intervals, the grooves conform to spherical shapes, the centers of the grooves correspond to the positions of a scale, an elastic rod 53 is arranged at the position, corresponding to the sliding grooves, of the outer lantern ring 52, a ball 54 is arranged at one end, extending into the sliding grooves, of the elastic rod 53, the radius of the ball 54 is equal to that of the grooves, and as shown in fig. 5, the number of the elastic rods can be two. Here, a technical solution for adjusting the length of the mold and thus the spacer is provided. An external lantern ring 52 is arranged outside the pipe groove 3 in a sliding mode, the external lantern ring 52 is connected with an internal circular ring 51 located inside the pipe groove 3, the external lantern ring 52 can be located at any position of the scale, the internal circular ring 51 moves along with the external lantern ring 52, the space length of the antibiotic bone cement is made to change, and therefore placeholders with various lengths are obtained. In order to avoid pouring bone cement, 5 squints of slip closure piece, cause the spacer size to deviate, set up the spout in the pipe box 3 outside, the spout bottom sets up the recess, the position that outside lantern ring 52 corresponds sets up elastic rod 53, elastic rod 53's tip sets up ball 54, when outside lantern ring 52 slides along pipe box 3, ball 54 can get into in each recess, can fix a position the position department at the recess place with slip closure piece 5, elastic rod 53 supports tight recess, the positioning effect has been improved. The position of the groove corresponds to the scale, so that the sliding plug piece 5 can be fixed at various positions with required lengths. In use, the sliding closure piece 5 is moved to a desired position, the cable wire is fixed between the inner disc 51 and the other barrier 2, and then bone cement is poured into the space defined by the inner disc 51 and the other barrier 2. Therefore, the technical scheme can adapt to different length requirements.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. The application, modifications and variations to the antibiotic bone cement spacer mold of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (3)
1. An antibiotic bone cement spacer mold, comprising:
the surface of the base is vertically provided with a pair of baffles which are arranged in parallel relatively;
the brackets are arranged on the surface of the base and positioned between the pair of baffles, and clamps are arranged at the upper ends of the brackets;
the pipe groove is of a cylindrical structure with a strip-shaped hole in the side wall, the pipe groove is horizontally arranged and is clamped by the clamp, and two ends of the pipe groove are respectively abutted against the surfaces of the pair of baffles;
the strip-shaped holes are arranged along the axial direction of the pipe groove and have the same length as the pipe groove;
scales are arranged on the outer wall of the pipe groove;
further comprising:
the sliding plug comprises an inner circular sheet and an outer lantern ring, the inner circular sheet is located in the pipe groove, the diameter of the inner circular sheet is equal to that of the pipe groove, the outer lantern ring is sleeved outside the pipe groove, the outer lantern ring is fixed with the inner circular sheet at the position of the strip-shaped hole, and the outer lantern ring can slide along the pipe groove outside the pipe groove and can drive the inner circular sheet to move inside the pipe groove;
the pipe groove comprises a plurality of sliding grooves, the sliding grooves are formed in the outer wall of the pipe groove and extend along the axial direction of the pipe groove, a plurality of grooves are formed in the bottom of each sliding groove at intervals and conform to a spherical shape, the centers of the grooves correspond to the positions of scales, an elastic rod is arranged at the position, corresponding to the sliding grooves, of the outer lantern ring, one end, extending into the sliding grooves, of each elastic rod is provided with a ball, and the radius of each ball is equal to that of each groove.
2. The antibiotic bone cement spacer mold of claim 1 wherein the bracket is removably connected to the base and the baffle is removably connected to the base.
3. The antibiotic bone cement spacer mold as defined in claim 1, wherein said clip comprises a pair of oppositely disposed arcuate metal pieces, the curvature of said arcuate metal pieces matching the outer wall of said tube slot, the outer sides of said pair of arcuate metal pieces each being connected to one end of a spring, the other end of said spring being fixed to said bracket, said spring being in a compressed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810004927.0A CN108392259B (en) | 2018-01-03 | 2018-01-03 | Antibiotic bone cement spacer mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810004927.0A CN108392259B (en) | 2018-01-03 | 2018-01-03 | Antibiotic bone cement spacer mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108392259A CN108392259A (en) | 2018-08-14 |
| CN108392259B true CN108392259B (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810004927.0A Active CN108392259B (en) | 2018-01-03 | 2018-01-03 | Antibiotic bone cement spacer mould |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070222114A1 (en) * | 2006-03-23 | 2007-09-27 | Ziran Bruce H | Method of forming a temporary implant and mold assembly for same |
| CN203001183U (en) * | 2012-11-02 | 2013-06-19 | 北京爱康宜诚医疗器材股份有限公司 | Hip joint placeholder die |
| US20160235537A1 (en) * | 2015-02-16 | 2016-08-18 | Augusto Magagnoli | Containment body for a spacer device and method of making thereof |
| CN106108998A (en) * | 2016-07-25 | 2016-11-16 | 南京医科大学第附属医院 | A kind of braided steel wire inner core antibiotic-loaded bone cement intramedullary pin and preparation method thereof and making mould |
| CN106217612A (en) * | 2016-08-29 | 2016-12-14 | 无锡市锡山区仁景模具厂 | A kind of curb mould of adjustable length |
| CN107361882A (en) * | 2012-12-12 | 2017-11-21 | 拜欧米特制造有限责任公司 | Cement mold component |
-
2018
- 2018-01-03 CN CN201810004927.0A patent/CN108392259B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070222114A1 (en) * | 2006-03-23 | 2007-09-27 | Ziran Bruce H | Method of forming a temporary implant and mold assembly for same |
| CN203001183U (en) * | 2012-11-02 | 2013-06-19 | 北京爱康宜诚医疗器材股份有限公司 | Hip joint placeholder die |
| CN107361882A (en) * | 2012-12-12 | 2017-11-21 | 拜欧米特制造有限责任公司 | Cement mold component |
| US20160235537A1 (en) * | 2015-02-16 | 2016-08-18 | Augusto Magagnoli | Containment body for a spacer device and method of making thereof |
| CN106108998A (en) * | 2016-07-25 | 2016-11-16 | 南京医科大学第附属医院 | A kind of braided steel wire inner core antibiotic-loaded bone cement intramedullary pin and preparation method thereof and making mould |
| CN106217612A (en) * | 2016-08-29 | 2016-12-14 | 无锡市锡山区仁景模具厂 | A kind of curb mould of adjustable length |
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| Publication number | Publication date |
|---|---|
| CN108392259A (en) | 2018-08-14 |
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