CN102613993A - Negative pressure skin biopsy trephine - Google Patents
Negative pressure skin biopsy trephine Download PDFInfo
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- CN102613993A CN102613993A CN2011100323377A CN201110032337A CN102613993A CN 102613993 A CN102613993 A CN 102613993A CN 2011100323377 A CN2011100323377 A CN 2011100323377A CN 201110032337 A CN201110032337 A CN 201110032337A CN 102613993 A CN102613993 A CN 102613993A
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- trephine
- negative pressure
- skin biopsy
- rear end
- pull bar
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Abstract
The invention provides a gathering tool of skin tissue pathological samples, in particular relates to a negative pressure skin biopsy trephine, and belongs to the technical field of medical instruments. The negative pressure skin biopsy trephine comprises a cylinder-shaped trephine body with two ends opened, and a ring-shaped ringing knife is arranged at the front end of the trephine body. The negative pressure skin biopsy trephine is characterized in that an annular rubber plug is arranged in the trephine body and is perpendicular to the inner wall of the trephine body; the front end of a metal pull rod is hinged with the rubber plug, and the rear end extends out of the rear end of the trephine body. The edges of the samples gathered by the ringing knife are tidy and are standard column-shaped, so that the phenomenon is avoided that since the samples are extruded by tweezers, the tissues are damaged, and the quality of samples is improved; the operation stability is increased due to a reasonable structural design; and meanwhile, the surgical time is shortened, the pain of a patient is reduced, and the operation process is simple, easy and convenient.
Description
Technical field
The invention provides a kind of skin histopathology collection of specimens instrument, particularly relate to a kind of negative pressure trephine for skin biopsy, belong to technical field of medical instruments.
Background technology
Along with the raising of China's economic development and living standards of the people, people are increasingly high to the health requirements of self skin.There is important value in skin histopathology to dermopathic diagnosis, simultaneously to the generation of understanding disease, develop, lapse to, body general body state and all significant to the selection of Therapeutic Method.Seek out the high pathology picture of value regular BIAO and BEN must be arranged.The method of collection of specimens at present has three kinds: operation cuts method, trepan method and cuts method.Wherein, it all is directly the skin of morbidity to be cut down and directly obtains BIAO and BEN with scalpel with the method that cuts that operation cuts method, because of big, hemorrhage many, the operative scar of wound than in clinical practice, being restricted greatly.The trepan method generally adopts at various big hospital at present, is adapted to less early stage skin lesion especially or is confined to show shallow place or operation cuts difficult person; Corneal trephine is that department of dermatologry is got one of the most frequently used instrument of Pathologic specimen, and this trepan front end has circular cutter, after trepan is got into patient's subcutaneous tissue, takes off trepan, clamps BIAO and BEN with tweezers, cuts BIAO and BEN with knife or scissors at fat deposit; Complicated operation in this course; Easy squeeze and destroy BIAO and BEN or blocked up, excessive because of BIAO and BEN, ring cutting causes the BIAO and BEN incisxal edge not sharp keen neat repeatedly, and the tangent plane shape is owed drawbacks such as regular; Influence the pathological observation result; Cause acatalepsia or difficult diagnosis, operating time while is longer, and patient's stress is also just bigger.
Summary of the invention
The technical problem that the present invention will solve is; A kind of technical scheme of negative pressure trephine for skin biopsy is provided to the deficiency of prior art, and this scheme can make skin histopathology's collection of specimens convenient, and the BIAO and BEN qualification rate that collects is high; Reduce the operating time, reduce patient's misery.
The present invention realizes like this; The negative pressure trephine for skin biopsy, it comprises the cylindrical shape trepan body of both ends open, trepan body front end is the Ring-shape cutter of annular; It is characterized in that; In the trepan body, be provided with the round rubber plug, rubber stopper is perpendicular to trepan body inwall, and metal pull bar front end and rubber stopper are hinged, trepan body rear end is stretched out in the metal pull bar rear end.
Said metal pull bar is any one of triangular type or four rib types.
Said metal pull bar rear end is circular handle.
The barrel outside of said trepan body rear end is symmetrically arranged with the hand-held retaining of two selenodonts head.
Said Ring-shape cutter lateral surface is perpendicular to the plane at blade place, and the angle between medial surface and the lateral surface is 2～3 degree.
The invention has the beneficial effects as follows, adopt the Ring-shape cutter of technical scheme of the present invention, the BIAO and BEN neat in edge of getting, and be the standard cylindricality, avoid BIAO and BEN to receive the tweezers extruding to cause tissue damaged, improve specimen quality; Reasonable in design has increased the stability of operation; Shorten operating time simultaneously, reduce patient's misery; Operating process is simple and direct, easy, convenient.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a vertical view of the present invention.
Wherein, 1-handle, 2-metal pull bar, the hand-held retaining of 3-head, 4-trepan body, 5-rubber stopper, 6-Ring-shape cutter.
The specific embodiment
Below in conjunction with accompanying drawing concrete structure of the present invention and principle are further specified.
As shown in the figure; Negative pressure trephine for skin biopsy of the present invention, it comprises the cylindrical shape trepan body 4 of both ends open, trepan 4 body front ends are the Ring-shape cutter 6 of annular; It is characterized in that; In trepan 4 bodies, be provided with round rubber plug 5, rubber stopper 5 is perpendicular to trepan body 4 inwalls, and metal pull bar 2 front ends and rubber stopper 5 are hinged, trepan body 4 rear ends are stretched out in metal pull bar 2 rear ends; Said metal pull bar 2 is any one of triangular type or four rib types; Said metal pull bar 2 rear ends are circular handle 1; The barrel of the said trepan body 4 rear ends outside is symmetrically distributed with the hand-held retaining of two selenodonts 3; Said Ring-shape cutter 6 lateral surface are perpendicular to the plane at blade place, and the angle between medial surface and the lateral surface is 2～3 degree.
When using negative pressure trephine for skin biopsy of the present invention; Pull metal pull bar 2 makes to certain position between the blade of rubber stopper 5 and Ring-shape cutter 6 has a segment distance to be enough to fill the skin biopsy tissue; Hand-held trepan body 4; Make directly contact patient skins of Ring-shape cutter 6, Ring-shape cutter 6 perpendicular to patient typical case skin lesion place and be drilled into subcutaneous tissue rapidly, is firmly grasped trepan body 4 through hand-held retaining 3 behind the ring cutting on the other hand; An other portable lashing wire belongs to the handle 1 on the pull bar 2, and metal pull bar 2 drives rubber stopper 5 risings and in trepan body 4, forms stronger negative-pressure sucking with the BIAO and BEN sucking-off.
The present invention's metal pull bar 2 is designed to the stability that triangular type or four rib types have kept mechanics in use, and apostle's hand operated is more stable; Ring-shape cutter 6 lateral surface of the present invention are perpendicular to the plane at blade place, and the angle between medial surface and the lateral surface is 2～3 degree, and such design can prevent that skin sample cutting-out back from causing the defective of leaking gas and can not inhale because of contraction; BIAO and BEN is a contact ring cutter 6 in gatherer process, is unlikely to receive outside contamination, makes BIAO and BEN for pathological diagnosis provides high-quality.The BIAO and BEN neat in edge that adopts the present invention to get, and be the standard cylindricality, avoid BIAO and BEN to receive the tweezers extruding to cause tissue damaged, shorten operating time simultaneously, reduce patient's misery; Operating process is simple and direct, easy, convenient, and clinical use is economical and practical.Metal pull bar 2 front ends of the present invention and rubber stopper 5 are hinged, and can make metal pull bar 2 that competent move place is arranged, and carry out the collection of biopsy specimen and be suitable for the human body different parts.When adopting collect specimen of the present invention, the damage wound surface is little, and the patient heals easily, is easy to extensive patients and accepts, and the whole operation process is simple and direct, easy, convenient, is suitable for clinical application.
Claims (5)
1. negative pressure trephine for skin biopsy; It comprises the cylindrical shape trepan body of both ends open; Trepan body front end is the Ring-shape cutter of annular, it is characterized in that, in the trepan body, is provided with the round rubber plug; Rubber stopper is perpendicular to trepan body inwall, and metal pull bar front end and rubber stopper are hinged, trepan body rear end is stretched out in the metal pull bar rear end.
2. negative pressure trephine for skin biopsy according to claim 1 is characterized in that, said metal pull bar is any one of triangular type or four rib types.
3. negative pressure trephine for skin biopsy according to claim 1 and 2 is characterized in that, said metal pull bar rear end is circular handle.
4. negative pressure trephine for skin biopsy according to claim 1 and 2 is characterized in that, the barrel outside of said trepan body rear end is symmetrically arranged with the hand-held retaining of two selenodonts head.
5. negative pressure trephine for skin biopsy according to claim 1 and 2 is characterized in that, said Ring-shape cutter lateral surface is perpendicular to the plane at blade place, and the angle between medial surface and the lateral surface is 2～3 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100323377A CN102613993A (en) | 2011-01-26 | 2011-01-26 | Negative pressure skin biopsy trephine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100323377A CN102613993A (en) | 2011-01-26 | 2011-01-26 | Negative pressure skin biopsy trephine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102613993A true CN102613993A (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100323377A Pending CN102613993A (en) | 2011-01-26 | 2011-01-26 | Negative pressure skin biopsy trephine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102613993A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109806022A (en) * | 2019-02-26 | 2019-05-28 | 北京交通大学 | A kind of preparation method and its pick-off unit of vertebral compression test specimen |
-
2011
- 2011-01-26 CN CN2011100323377A patent/CN102613993A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109806022A (en) * | 2019-02-26 | 2019-05-28 | 北京交通大学 | A kind of preparation method and its pick-off unit of vertebral compression test specimen |
| CN109806022B (en) * | 2019-02-26 | 2020-07-28 | 北京交通大学 | Preparation method of vertebral compression test piece and piece taking device thereof |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120801 |