CN113545893A - Stapes prosthesis cutting device - Google Patents

Stapes prosthesis cutting device Download PDF

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Publication number
CN113545893A
CN113545893A CN202110957813.XA CN202110957813A CN113545893A CN 113545893 A CN113545893 A CN 113545893A CN 202110957813 A CN202110957813 A CN 202110957813A CN 113545893 A CN113545893 A CN 113545893A
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CN
China
Prior art keywords
hole
sleeve
positioning shaft
stapes prosthesis
cutter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110957813.XA
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Chinese (zh)
Inventor
陶忠
史庆
吴越
王海军
林龑
王昊飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baiwei Wuhan Medical Technology Co ltd
Original Assignee
Baiwei Wuhan Medical Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Baiwei Wuhan Medical Technology Co ltd filed Critical Baiwei Wuhan Medical Technology Co ltd
Priority to CN202110957813.XA priority Critical patent/CN113545893A/en
Publication of CN113545893A publication Critical patent/CN113545893A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/28—Bones
    • A61F2/2875—Skull or cranium
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2/4644—Preparation of bone graft, bone plugs or bone dowels, e.g. grinding or milling bone material

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  • Health & Medical Sciences (AREA)
  • Transplantation (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Cardiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Neurosurgery (AREA)
  • Prostheses (AREA)

Abstract

The invention discloses a stapes prosthesis cutting device, which comprises a sleeve, a positioning shaft, a cutter and a hanging rod, wherein the sleeve is fixedly arranged on the positioning shaft; the hollow cavity in the sleeve is a first through hole and a second through hole which are coaxial, the second through hole is arranged at the upper part of the first through hole, and the diameter of the second through hole is larger than that of the first through hole; the positioning shaft penetrates through the first through hole and is sleeved in the sleeve, and the positioning shaft can move up and down along the first through hole; the top of the positioning shaft is provided with a positioning hole corresponding to the tail part of the stapes prosthesis to be cut; a cutter capable of cutting in the radial direction is arranged at the top end of the positioning shaft; the upper portion of the sleeve wall of the sleeve is radially provided with a hanging rod, and the hanging rod is detachably connected with the sleeve. The device can fix the stapes prosthesis and can conveniently cut; the size of the cut prosthesis can also be accurately determined.

Description

Stapes prosthesis cutting device
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a stapes prosthesis cutting device.
Background
The ossicles of the middle ear are usually susceptible to damage due to disease, trauma or congenital deformity, and consist of three ossicles, also known as the ossicle chain, which in turn are: malleus, incus, stapes, which consists of the stapes arch and the stapes footplate, the latter being in contact with the perilymph fluid of the inner ear, the last structure of the middle ear that transmits vibrations to the inner ear. Sound is transmitted to the inner ear by vibration of the auditory membrane to cause vibration of the ossicular chain, and mechanical waves of the sound waves are converted into electric impulses through the sensible sound of cochlear hair cells to enable the brain to perceive the sound. The activity of the ossicular chain plays a crucial role in the conduction of sound.
The existing stapes prosthesis is mainly composed of a rod part and a hook part, when the stapes prosthesis is implanted, a hole is punched on a residual stapes bone plate, the hook part is hooked on a long anvil stem, and the tail end of the rod part extends into the punched hole. The length of the stapes prosthesis made may not be appropriate and it is necessary to cut the appropriate length. The stapes prosthesis is of very small size, is difficult to intercept with common tools, and may also damage the stapes prosthesis.
Disclosure of Invention
The invention aims to provide a stapes prosthesis cutting device. The device allows the fixation of the stapes prosthesis and allows easy cutting.
In order to solve the technical problems, the invention adopts the following technical scheme:
a stapes prosthesis cutting device, which comprises a sleeve, a positioning shaft, a cutter and a hanging rod;
the hollow cavity in the sleeve is a first through hole and a second through hole which are coaxial, the second through hole is arranged at the upper part of the first through hole, and the diameter of the second through hole is larger than that of the first through hole;
the positioning shaft penetrates through the first through hole and is sleeved in the sleeve, and the positioning shaft can move up and down along the first through hole;
the top of the positioning shaft is provided with a positioning hole corresponding to the tail part of the stapes prosthesis to be cut;
a cutter capable of cutting in the radial direction is arranged at the top end of the positioning shaft;
a hanging rod is radially arranged at the upper part of the sleeve wall of the sleeve; the hanging rod is detachably connected with the sleeve.
As an implementation mode, the hanging rod is provided with a first connecting end, a middle rod and a second connecting end, the diameters of which are sequentially increased, from left to right; the diameter of the intermediate rod corresponds to the diameter of the hook of the stapes prosthesis to be cut; the sleeve wall is provided with a first connecting hole and a second connecting hole; the inner diameter of the first connecting hole is matched with the first connecting end, and the inner diameter of the second connecting hole is matched with the second connecting end.
As an implementation mode, an internal thread is arranged on the inner wall of the first through hole, an external thread is arranged in the middle of the positioning shaft, and the positioning shaft is screwed with the internal thread of the first through hole through the external thread.
As an implementation mode, a fixing threaded hole formed in the radial direction is formed in the side wall of the sleeve, and a fixing bolt is arranged in the fixing threaded hole.
In one embodiment, a scale is arranged on the outer wall of the sleeve corresponding to the second through hole.
In one embodiment, the scale and the sleeve are detachably connected.
As an embodiment, the cutter comprises a cutter seat and a cutter blade; the cutter seat is detachably connected to the top end of the positioning shaft; the cutter seat is a box-shaped structure with an opening on one surface, and the cutter blade can be inserted into the cutter seat through the opening; and a V-shaped notch is formed in the opening of the box body of the cutter seat.
Any range recited herein is intended to include the endpoints and any number between the endpoints and any subrange subsumed therein or defined therein.
The starting materials of the present invention are commercially available, unless otherwise specified, and the equipment used in the present invention may be any equipment conventionally used in the art or may be any equipment known in the art.
Compared with the prior art, the invention has the following beneficial effects:
compared with the prior art, the invention can fix the stapes prosthesis in the cutting process, and can conveniently cut; the cut length of the stapes prosthesis can also be determined accurately.
Drawings
The following detailed description of embodiments of the invention is provided in connection with the accompanying drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the cutting state structure of the present invention;
FIG. 3 is a schematic structural view of the sleeve;
FIG. 4 is a schematic view of the positioning shaft;
FIG. 5 is a schematic view of the hook portion of the stapes prosthesis hanging on a hanger bar;
FIG. 6 is an enlarged view of the mounting detail at the hanger bar;
FIG. 7 is a front view of the cutter;
fig. 8 is a sectional view of the cutter.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below in connection with preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 and 2, the invention relates to a stapes prosthesis cutting device, comprising:
the sleeve 1 is used for arranging the positioning shaft 2 and the hanging rod 4;
the positioning shaft 2 is used for positioning the position of the cutting knife 3, so that the length of the stapes prosthesis to be cut can be accurately determined;
a cutting blade 3 for cutting a stapedial prosthesis 5;
a hanging rod 4; for engaging with the hook 51 of the stapedial prosthesis 5 to be cut, suspending the stapedial prosthesis 5;
referring to fig. 3 and 4, the hollow cavities in the sleeve 1 are a first through hole 11 and a second through hole 12 which are coaxial, the second through hole 12 is arranged at the upper part of the first through hole 11, and the diameter of the second through hole 12 is larger than that of the first through hole; the first through hole 11 is used for the positioning shaft 2 to pass through, and the second through hole 12 is used for accommodating the upper end head of the positioning shaft 2, the cutting knife 3, the stapes prosthesis 5 to be cut and the hanging rod 4;
the positioning shaft 2 penetrates through the first through hole 11 and is sleeved in the sleeve 1; the positioning shaft 2 can move up and down along the first through hole 11;
the top of the positioning shaft 2 is provided with a positioning hole 21 corresponding to the tail 52 of the stapes prosthesis 5 to be cut;
a cutter 3 capable of cutting in the radial direction is arranged at the top end of the positioning shaft 2;
the upper part of the sleeve wall of the sleeve 1 is radially provided with a hanging rod 4; the hanging rod 4 is detachably connected with the sleeve.
In one embodiment, the outer diameter of the hanging rod 4 corresponds to the inner diameter of the hook 51 of the stapes prosthesis 5 to be cut, see fig. 5. It will be understood that by "corresponding" is meant that said suspension rod 4 fills almost the entire hook portion 51, i.e. the outer diameter of the suspension rod 4 is almost the same as or slightly smaller than the inner diameter of the hook portion 51 of the stapes prosthesis 5.
In one embodiment, referring to fig. 6, the hanging rod 4 is provided with a first connecting end 41, a middle rod 42 and a second connecting end 43 with successively increasing diameters from left to right; the diameter of said intermediate rod 42 corresponds to the diameter of the hook 51 of the stapes prosthesis 5 to be cut; a first connecting hole 13 and a second connecting hole 14 are formed in the wall of the sleeve 1; the inner diameter of the first connection hole 13 is matched with the first connection end 41, and the inner diameter of the second connection hole 14 is matched with the second connection end 43. The hanging rod 4 with the structure can firstly enable the first connecting end 41 to penetrate through the second connecting hole 14, then the hook part 51 of the stapes prosthesis 5 is sequentially sleeved into the first connecting end 41 and the middle rod 42, and then the first connecting end 41 is inserted into the first connecting hole 13, so that the situation that the hook part 51 is opened and deformed when the stapes prosthesis 5 is directly hooked on the hanging rod 4 can be avoided.
In one embodiment, an inner thread is arranged on the inner wall of the first through hole 11, an outer thread is arranged in the middle of the positioning shaft 2, and the positioning shaft 2 is screwed with the inner thread of the first through hole 11 through the outer thread. The sleeve 1 and the positioning shaft 2 can realize relative movement through the external thread and the internal thread, so that the movement is more stable than direct pushing, and the movement continuity is better.
In one embodiment, the sidewall of the sleeve 1 is provided with a radially-opened fixing threaded hole, and a fixing bolt 15 is arranged in the fixing threaded hole. The positioning shaft 2 is prevented from moving by screwing the fixing bolt 15 into the fixing threaded hole.
In one embodiment, the outer wall of the sleeve 1 corresponding to the second through hole 12 is provided with a scale 16.
In one embodiment, the scale 16 and the sleeve 1 are removably attached. The scale 16 marks the effective length of the stapes prosthesis 5 after the truncation, the scale 16 can allow the doctor to more accurately intercept the length of the stapes prosthesis 5, and the scale 16 can be detached to conveniently intercept stapes prostheses 5 of different specifications by using the corresponding scale 16.
In one embodiment, as shown in fig. 7 and 8, the cutting knife 3 comprises a knife seat 31 and a cutting blade 32; the cutter seat 31 is detachably connected to the top end of the positioning shaft 2, for example, in a threaded connection, a pin connection or a key connection; the cutter seat 31 is a box-shaped structure with an opening on one surface, and the cutter blade 32 can be inserted into the box body of the cutter seat 31 through the opening; the box body opening of the cutter seat 31 is provided with a V-shaped notch 311.
The use principle of the invention is as follows:
when in use, the hook part 51 of the stapes prosthesis 5 is hung on the hanging rod 4, the positioning shaft 2 is screwed to a proper position, the fixing bolt 15 is screwed down, the positioning shaft 2 does not move any more, the cutting knife 3 is arranged at the top end of the positioning shaft 2, and the cutting knife 3 is operated to cut off the stapes prosthesis 5.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes and modifications which are obvious to the technical scheme of the invention are covered by the protection scope of the invention.

Claims (7)

1. A stapes prosthesis cutting device, characterized by: comprises a sleeve, a positioning shaft, a cutter and a hanging rod;
the hollow cavity in the sleeve is a first through hole and a second through hole which are coaxial, the second through hole is arranged at the upper part of the first through hole, and the diameter of the second through hole is larger than that of the first through hole;
the positioning shaft penetrates through the first through hole and is sleeved in the sleeve, and the positioning shaft can move up and down along the first through hole;
the top of the positioning shaft is provided with a positioning hole corresponding to the tail part of the stapes prosthesis to be cut;
a cutter capable of cutting in the radial direction is arranged at the top end of the positioning shaft;
the upper portion of the sleeve wall of the sleeve is radially provided with a hanging rod, and the hanging rod is detachably connected with the sleeve.
2. The stapes prosthesis cutting device according to claim 1, characterised in that: the hanging rod is provided with a first connecting end, a middle rod and a second connecting end, the diameters of which are sequentially increased, from left to right; the diameter of the intermediate rod corresponds to the diameter of the hook of the stapes prosthesis to be cut; the sleeve wall is provided with a first connecting hole and a second connecting hole; the inner diameter of the first connecting hole is matched with the first connecting end, and the inner diameter of the second connecting hole is matched with the second connecting end.
3. The stapes prosthesis cutting device according to claim 1, characterised in that: establish the internal thread on the inner wall of first through-hole, location axle middle part is equipped with the external screw thread, the location axle closes through the internal thread of external screw thread and first through-hole soon.
4. The stapes prosthesis cutting device according to claim 1, characterised in that: the side wall of the sleeve is provided with a fixing threaded hole which is radially formed, and a fixing bolt is arranged in the fixing threaded hole.
5. The stapes prosthesis cutting device according to claim 1, characterised in that: and a scale is arranged on the outer wall of the sleeve corresponding to the second through hole.
6. The stapedial prosthesis cutting device according to claim 5, wherein: the scale and the sleeve are detachably connected.
7. The stapes prosthesis cutting device according to claim 1, characterised in that: the cutter comprises a cutter seat and a cutter blade; the cutter seat is detachably connected to the top end of the positioning shaft; the cutter seat is a box-shaped structure with an opening on one surface, and the cutter blade can be inserted into the cutter seat through the opening; and a V-shaped notch is formed in the opening of the box body of the cutter seat.
CN202110957813.XA 2021-08-19 2021-08-19 Stapes prosthesis cutting device Pending CN113545893A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110957813.XA CN113545893A (en) 2021-08-19 2021-08-19 Stapes prosthesis cutting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110957813.XA CN113545893A (en) 2021-08-19 2021-08-19 Stapes prosthesis cutting device

Publications (1)

Publication Number Publication Date
CN113545893A true CN113545893A (en) 2021-10-26

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ID=78105825

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110957813.XA Pending CN113545893A (en) 2021-08-19 2021-08-19 Stapes prosthesis cutting device

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CN (1) CN113545893A (en)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2085124T3 (en) * 1992-06-16 1996-05-16 Dev Implants Orthop Et Med STABILIZATION DEVICE FOR A CUTTING MEDIA FOR THE PLACEMENT OF A PROTESIS IN OSEA SURGERY.
US6168625B1 (en) * 1998-12-01 2001-01-02 Anthony D. Prescott Adjustable length prosthesis useful for ossicular replacement and reconstruction
US20090270864A1 (en) * 2008-04-28 2009-10-29 Didier Poncet Cutting guide assembly
US20100262236A1 (en) * 2009-04-10 2010-10-14 Uwe Steinhardt Variable-length ossicular prosthesis
CN105212938A (en) * 2015-08-18 2016-01-06 上海市杨浦区中心医院 Integration tibial prosthesis measuring device and measuring method
CN204954921U (en) * 2015-08-19 2016-01-13 四川大学华西医院 Animal bone cutting device
CN107379080A (en) * 2017-07-20 2017-11-24 王杰 Cartilage thickness of cutting adjusting apparatus and cartilage cutting system
CN109758263A (en) * 2019-03-18 2019-05-17 安徽奥弗智能微创医疗器械有限公司 A kind of length-adjustable incus replacement prosthesis
CN210100078U (en) * 2019-09-29 2020-02-21 海南来者实业有限公司 Multi-functional cutting device of sample false body
CN111035483A (en) * 2019-12-30 2020-04-21 北京爱康宜诚医疗器材有限公司 Surgical tool
CN210758059U (en) * 2019-10-24 2020-06-16 苏州信和隆医疗器械有限公司 Cutting equipment for producing solid massive artificial bone
CN111297525A (en) * 2020-03-27 2020-06-19 上海云茜医疗器械有限公司 Costal cartilage slicer
CN212763613U (en) * 2020-05-09 2021-03-23 中国人民解放军北部战区总医院 Intervertebral bone block preparation device
CN112971910A (en) * 2021-03-29 2021-06-18 北京大学第三医院（北京大学第三临床医学院） Decoration assembly for tibial plateau osteotomy surface
CN215839716U (en) * 2021-08-19 2022-02-18 柏为（武汉）医疗科技股份有限公司 Stapes prosthesis cutting device

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2085124T3 (en) * 1992-06-16 1996-05-16 Dev Implants Orthop Et Med STABILIZATION DEVICE FOR A CUTTING MEDIA FOR THE PLACEMENT OF A PROTESIS IN OSEA SURGERY.
US6168625B1 (en) * 1998-12-01 2001-01-02 Anthony D. Prescott Adjustable length prosthesis useful for ossicular replacement and reconstruction
US20090270864A1 (en) * 2008-04-28 2009-10-29 Didier Poncet Cutting guide assembly
US20100262236A1 (en) * 2009-04-10 2010-10-14 Uwe Steinhardt Variable-length ossicular prosthesis
CN105212938A (en) * 2015-08-18 2016-01-06 上海市杨浦区中心医院 Integration tibial prosthesis measuring device and measuring method
CN204954921U (en) * 2015-08-19 2016-01-13 四川大学华西医院 Animal bone cutting device
CN107379080A (en) * 2017-07-20 2017-11-24 王杰 Cartilage thickness of cutting adjusting apparatus and cartilage cutting system
CN109758263A (en) * 2019-03-18 2019-05-17 安徽奥弗智能微创医疗器械有限公司 A kind of length-adjustable incus replacement prosthesis
CN210100078U (en) * 2019-09-29 2020-02-21 海南来者实业有限公司 Multi-functional cutting device of sample false body
CN210758059U (en) * 2019-10-24 2020-06-16 苏州信和隆医疗器械有限公司 Cutting equipment for producing solid massive artificial bone
CN111035483A (en) * 2019-12-30 2020-04-21 北京爱康宜诚医疗器材有限公司 Surgical tool
CN111297525A (en) * 2020-03-27 2020-06-19 上海云茜医疗器械有限公司 Costal cartilage slicer
CN212763613U (en) * 2020-05-09 2021-03-23 中国人民解放军北部战区总医院 Intervertebral bone block preparation device
CN112971910A (en) * 2021-03-29 2021-06-18 北京大学第三医院（北京大学第三临床医学院） Decoration assembly for tibial plateau osteotomy surface
CN215839716U (en) * 2021-08-19 2022-02-18 柏为（武汉）医疗科技股份有限公司 Stapes prosthesis cutting device

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