CN201939391U - Negative pressure trepan for skin biopsy - Google Patents
Negative pressure trepan for skin biopsy Download PDFInfo
- Publication number
- CN201939391U CN201939391U CN2011200323071U CN201120032307U CN201939391U CN 201939391 U CN201939391 U CN 201939391U CN 2011200323071 U CN2011200323071 U CN 2011200323071U CN 201120032307 U CN201120032307 U CN 201120032307U CN 201939391 U CN201939391 U CN 201939391U
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- trepan
- negative pressure
- skin biopsy
- metal pull
- trepan body
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Abstract
The utility model provides a skin tissue pathological specimen collection tool, and particularly relates to a negative pressure trepan for skin biopsy, which belongs to the technical field of medical instruments and comprises a tubular trepan body with two open ends. A circular cutter is arranged at the front end of the trepan body. The negative pressure trepan is characterized in that a round rubber plug is arranged in the trepan body and perpendicular to the inner wall of the trepan body, the front end of a metal pull rod is hinged with the rubber plug, and the rear end of the metal pull rod extends out of the rear end of the trepan body. Edges of specimens obtained by the aid of the circular cutter of the negative pressure trepan are neat while the specimens are standard cylinders, tissue damage caused when the specimens are compressed by tweezers can be avoided, specimen quality is improved, the negative pressure trepan is reasonable in structural design, operation stability is improved, surgical time is shortened, pain of patients is relieved, and the negative pressure trepan is simple, easy and convenient in operation.
Description
Technical field
This utility model provides a kind of skin histopathology collection of specimens instrument, particularly relates to a kind of negative pressure trephine for skin biopsy, belongs 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 more and more higher 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 specimen must be arranged.The method of collection of specimens at present has three kinds: operation cuts method, trepan method and cuts method.Wherein, operation cuts method and the method that cuts all is directly the skin of morbidity to be cut down and directly obtains specimen with scalpel, 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 specimen with tweezers, cuts specimen with knife or scissors at fat deposit; Complicated operation in this course, easily the squeeze and destroy specimen or because of specimen blocked up, excessive, ring cutting causes the specimen incisxal edge not sharp keen neat repeatedly, the tangent plane shape is owed every shortcoming 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 problems to be solved in the utility model is, a kind of technical scheme of negative pressure trephine for skin biopsy is provided at the deficiencies in the prior art, and this scheme can make skin histopathology's collection of specimens convenient, the specimen qualification rate height that collects, reduce the operating time, reduce patient's misery.
This utility model is to realize 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, be provided with the round rubber plug in the trepan body, 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.
Described metal pull bar is any one of rhizoma sparganic type or four rib types.
Described metal pull bar rear end is circular handle.
The barrel outside of described trepan body rear end is symmetrically arranged with the hand-held retaining of two selenodonts head.
Described 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 beneficial effects of the utility model are, adopt the Ring-shape cutter of technical solutions of the utility model, the specimen neat in edge of getting, and be the standard cylindricality, avoid specimen to be subjected to the tweezers extruding to cause tissue damaged, the raising 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 utility model;
Fig. 2 is a vertical view of the present utility model.
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 utility model and principle are described further.
As shown in the figure, negative pressure trephine for skin biopsy of the present utility model, 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, be provided with round rubber plug 5 in trepan 4 bodies, 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; Described metal pull bar 2 is any one of rhizoma sparganic type or four rib types; Described metal pull bar 2 rear ends are circular handle 1; The barrel of the described trepan body 4 rear ends outside is symmetrically distributed with the hand-held retaining of two selenodonts 3; Described 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 utility model, 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 skin of Ring-shape cutter 6, Ring-shape cutter 6 also is drilled into subcutaneous tissue rapidly perpendicular to patient typical case skin lesion place, on the other hand firmly clamp trepan body 4 behind the ring cutting by hand-held retaining 3, 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 forms stronger negative-pressure sucking with the specimen sucking-off in trepan body 4.
The metal pull bar 2 of this utility model is designed to the stability that rhizoma sparganic 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 utility model 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; Specimen is a contact ring cutter 6 in gatherer process, is unlikely to be subjected to outside contamination, makes specimen for pathological diagnosis provides high-quality.The specimen neat in edge that adopts this utility model to get, and be the standard cylindricality, avoid specimen to be subjected to 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 utility model 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 this utility model collect specimen, 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, 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.
2. negative pressure trephine for skin biopsy according to claim 1 is characterized in that, described metal pull bar is any one of rhizoma sparganic type or four rib types.
3. negative pressure trephine for skin biopsy according to claim 1 and 2 is characterized in that, described 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 described 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, described 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 |
|---|---|---|---|
| CN2011200323071U CN201939391U (en) | 2011-01-26 | 2011-01-26 | Negative pressure trepan for skin biopsy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200323071U CN201939391U (en) | 2011-01-26 | 2011-01-26 | Negative pressure trepan for skin biopsy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201939391U true CN201939391U (en) | 2011-08-24 |
Family
ID=44466748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200323071U Expired - Fee Related CN201939391U (en) | 2011-01-26 | 2011-01-26 | Negative pressure trepan for skin biopsy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201939391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102743195A (en) * | 2012-07-17 | 2012-10-24 | 李国英 | Skin biopsy trepan |
| CN102846429A (en) * | 2012-08-31 | 2013-01-02 | 北京大学第三医院 | Corneal trephine |
-
2011
- 2011-01-26 CN CN2011200323071U patent/CN201939391U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102743195A (en) * | 2012-07-17 | 2012-10-24 | 李国英 | Skin biopsy trepan |
| CN102743195B (en) * | 2012-07-17 | 2014-07-23 | 李国英 | Skin biopsy trepan |
| CN102846429A (en) * | 2012-08-31 | 2013-01-02 | 北京大学第三医院 | Corneal trephine |
| CN102846429B (en) * | 2012-08-31 | 2014-10-15 | 北京大学第三医院 | Fixed intelligent corneal trephine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20130126 |