CN102743195B - Skin biopsy trepan - Google Patents
Skin biopsy trepan Download PDFInfo
- Publication number
- CN102743195B CN102743195B CN201210258822.0A CN201210258822A CN102743195B CN 102743195 B CN102743195 B CN 102743195B CN 201210258822 A CN201210258822 A CN 201210258822A CN 102743195 B CN102743195 B CN 102743195B
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- China
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- main body
- push
- handle
- orifice plate
- drill main
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Abstract
The invention discloses a skin biopsy trepan, belonging to a medical instrument. The skin biopsy trepan comprises a drill rod, a drill bit and a handle, wherein a piston and a push-pull rod are arranged in the drill rod; the handle is vertically arranged on one side of the upper end of the drill rod; a sliding pin is arranged in the handle and is provided with a wedged head for positioning the push-pull rod; the drill bit comprises a drill bit main body, a circular cutter and a slide bushing; the slide bushing is positioned outside the drill bit main body; a return spring is arranged below the slide bushing; the circular cutter is arranged outside the slide bushing; the lower end of the drill bit main body is provided with a perforated plate; and the lower end of the perforated plate is provided with a rubber pad. The skin biopsy trepan has the advantages of rational structure, convenience in operation and capabilities of greatly improving the sampling efficiency of pathological specimens and reliving the pain of a patient.
Description
Technical field
The present invention relates to technical field of medical instruments, relate in particular to a kind of instrument for dermal tissue harvesting Pathologic specimen.
Background technology
Along with the deterioration of environment, and it is more and more in life, work, to touch electronic product radiation, causes in recent years dermopathic disease to send out rate higher.In dermopathic diagnosis and therapeutic process, skin histopathology's diagnosis has important value, the method of Pathologic specimen collection at present mainly contains operation harvesting, trepan method and cuts method, wherein, trepan method application is comparatively general, is specially adapted to less early stage skin lesion or is confined to show shallow place or operation cuts difficult person.Corneal trephine is the implementation tool of trepan method, and its front end has circular cutter, trepan is got into after patient's subcutaneous tissue, takes off trepan, clamps specimen with tweezers, cuts specimen with knife or scissors at fat deposit, finally completes pathology sampling; This operating process is comparatively complicated, easily squeeze and destroy specimen or blocked up, excessive because of specimen, and ring cutting causes specimen incisxal edge not sharp keen neat repeatedly, and tangent plane shape is owed every shortcoming such as regular, affects pathological observation result.
Publication number 201939391U discloses a kind of negative pressure trepan for skin biopsy, it comprises the cylindrical shape trepan body of both ends open, the Ring-shape cutter that trepan body front end is annular, it is characterized in that, in trepan body, be provided with 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 metal pull bar rear end.This trepan in use, by the negative pressure of trepan body inside, Pathologic specimen is adsorbed in theory, but in actual mechanical process, because skin is comparatively soft, the inner negative pressure producing of trepan body is difficult to put on uniformly on skin, finally cause turning on part, thereby destroy trepan body internal negative pressure, cause dermal pathology to take out unsuccessfully, in addition, be subject to trepan structural limitations, use operation also very inconvenient.
Summary of the invention
The object of the present invention is to provide a kind of design science, easy to operate, there is ring cutting, take out histopathology function, reduce the trephine for skin biopsy of dermal pathology sampling difficulty.
For realizing above-mentioned technical purpose, the present invention realizes by the following technical solutions: a kind of trephine for skin biopsy, and it comprises:
Drilling rod, its in a tubular form, the push-pull bar that inside is provided with piston and is connected with piston, push-pull bar one side has profile of tooth breach; Drilling rod lower end is provided with the external screw thread for connecting drill bit;
Handle, is vertically set on a side of drilling rod upper end; Handle is provided with slotted eye along its length in drilling rod one end, is provided with sliding pin in slotted eye, and sliding pin is provided with in nearly push-pull bar one end the sphenocephaly coordinating with profile of tooth breach, and the other end is provided with the second back-moving spring; Handle is provided with the slide key that drives sliding pin to move;
Drill bit, comprises drill main body, circular cutter, sliding sleeve; Drill main body upper end is provided with the female thread for jointed rod; Sliding sleeve is positioned at drill main body outside, can move along drill main body axial reciprocating within the specific limits, and sliding sleeve downside is provided with the first back-moving spring; Sliding sleeve is provided with the circular cutter of its circumferential movement relatively outward; Drill main body lower end is provided with orifice plate, and orifice plate is provided with equally distributed sucker, and orifice plate lower end edge edge is provided with a circle rubber cushion.
Its operation principle is: while carrying out pathology sampling, drill bit orifice plate is supported on skin, with the downward driving ring cutting knife of hands, due to the existence of sliding sleeve, circular cutter moves down with sliding sleeve, when after contact skin, rotating ring cutting knife continues to allow circular cutter move down on one side on one side, until pierce after the suitable degree of depth trip ring cutting knife, it resets under the effect of the first back-moving spring, leaves skin; Now upwards pull push-pull bar, in the time that skin is produced to enough suction, unclamp push-pull bar, it positions by sphenocephaly, and orifice plate is provided with multiple suckers, can produce suction to skin uniformly, and the rubber cushion of orifice plate surrounding is equivalent to a sucker, further ensure the combination dynamics of drill bit and skin, finally, by handle, upwards pulled drilling rod dermal pathology specimen can be taken off by body surface.
The present invention has following beneficial effect: because drill bit bottom is provided with orifice plate, orifice plate is provided with sucker, and periphery is provided with rubber cushion, has ensured that drilling rod produces after negative pressure even to the suction of skin, and can avoid local skin distortion and destroy drilling rod internal negative pressure; Circular cutter on drill bit can with respect to drill main body axially, circumferential movement, and be provided with resetting means, reduced the operation easier of ring cutting step; Its reasonable in design, operation is very easy, greatly improved the sampling efficiency of Pathologic specimen, brings convenience to medical work, reduced misery to patient, has significant practicality and novelty.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the profile of bit part along central shaft.
Fig. 3 is that bit part is cut perspective view open.
In figure, 1, drill bit, 2, piston, 3, push-pull bar, 4, sphenocephaly, 5, push-pull handle, 6, profile of tooth breach, 7, slide key, 8, the second back-moving spring, 9, handle, 10, sliding pin, 11, drilling rod, 12, drill main body, 13, sliding sleeve, 14, ball, 15, circular cutter, 16, the first back-moving spring, 17, rubber cushion, 18, orifice plate, 19, sucker, 20, female thread.
Detailed description of the invention
Shown in accompanying drawing 1, drilling rod 11 in a tubular form, the push-pull bar 3 that inside is provided with piston 2 and is connected with piston 2, push-pull bar 3 one sides have profile of tooth breach 6; Drilling rod 11 lower ends have been threaded connection drill bit 1; Handle 9 is vertically set on a side of drilling rod 11 upper ends, one end that handle 9 is connected with drilling rod 11 is provided with slotted eye along its length, in slotted eye, be provided with sliding pin 10, sliding pin 10 outer ends are provided with sphenocephaly 4, and the other end is provided with the second back-moving spring 8, under the thrust of the second back-moving spring 8, sphenocephaly 4 remains the trend of outside movement, itself and profile of tooth breach 6 are supported cooperation, can position push-pull bar 3 positions, and handle 9 is provided with the slide key 7 that drives sliding pin 10 to move.
Convenience while operation for improving, push-pull bar 3 upper ends can add push-pull handle 5.
Shown in accompanying drawing 2,3, drill bit 1 comprises drill main body 12, circular cutter 15, sliding sleeve 13; Drill main body 12 upper ends are provided with the female thread 20 for jointed rod 11; Sliding sleeve 13 is positioned at drill main body 12 outsides, can move along drill main body 12 axial reciprocatings within the specific limits, and sliding sleeve 13 downsides are provided with the first back-moving spring 16; The outer circular cutter 15 of its circumferential movement relatively that is provided with of sliding sleeve 13; Drill main body 12 lower ends are provided with orifice plate 18, and orifice plate 18 is provided with equally distributed sucker 19, and orifice plate 18 lower end edge edges are provided with a circle rubber cushion 17.
Described sliding sleeve 13 can move along drill main body 12 axial reciprocatings within the specific limits, must ensure that it is at drill main body 12 bottom time, and circular cutter 15 lower ends are positioned at orifice plate below 18; After the first back-moving spring 16 drives it to reset, circular cutter 15 lower ends are positioned at orifice plate more than 18.
Its operation principle is: while carrying out pathology sampling, the orifice plate of drill bit 1 18 is supported on skin, with the downward driving ring cutting knife 15 of hands, due to the existence of sliding sleeve 13, circular cutter 15 moves down with sliding sleeve 13, when after contact skin, rotating ring cutting knife 15 continues to allow circular cutter 15 move down on one side on one side, until pierce after the suitable degree of depth, trip ring cutting knife 15 resets and leaves skin under the effect of the first back-moving spring 16; Now will on push-pull bar 3, draw, in the time that skin is produced to enough suction, unclamp push-pull bar 3, it positions by sphenocephaly 4, and orifice plate 18 is provided with multiple suckers 19, can produce suction to skin uniformly, and the rubber cushion 17 of orifice plate 18 surroundings is equivalent to a sucker, further ensure the combination dynamics of drill bit 1 with skin, finally, by handle 9, upwards pulled drilling rod 11 dermal pathology specimen can be taken off by body surface.
Claims (2)
1. a trephine for skin biopsy, is characterized in that, it comprises:
Drilling rod, its in a tubular form, the push-pull bar that inside is provided with piston and is connected with piston, push-pull bar one side has profile of tooth breach; Drilling rod lower end is provided with the external screw thread for connecting drill bit;
Handle, is vertically set on a side of drilling rod upper end; Handle is provided with slotted eye along its length in drilling rod one end, is provided with sliding pin in slotted eye, and sliding pin is provided with in nearly push-pull bar one end the sphenocephaly coordinating with profile of tooth breach, and the other end is provided with the second back-moving spring; Handle is provided with the slide key that drives sliding pin to move;
Drill bit, comprises drill main body, circular cutter, sliding sleeve; Drill main body upper end is provided with the female thread for jointed rod; Sliding sleeve is positioned at drill main body outside, can move along drill main body axial reciprocating within the specific limits, and sliding sleeve downside is provided with the first back-moving spring; Sliding sleeve is provided with the circular cutter of its circumferential movement relatively outward; Drill main body lower end is provided with orifice plate, and orifice plate is provided with equally distributed sucker, and orifice plate lower end edge edge is provided with a circle rubber cushion; Described sliding sleeve (13) can move along drill main body (12) axial reciprocating within the specific limits, must ensure that it is at drill main body (12) bottom time, circular cutter (15) lower end is positioned at below orifice plate (18); After the first back-moving spring (16) drives it to reset, more than circular cutter (15) lower end is positioned at orifice plate (18).
2. a kind of trephine for skin biopsy as claimed in claim 1, is characterized in that: push-pull bar upper end adds push-pull handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210258822.0A CN102743195B (en) | 2012-07-17 | 2012-07-17 | Skin biopsy trepan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210258822.0A CN102743195B (en) | 2012-07-17 | 2012-07-17 | Skin biopsy trepan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102743195A CN102743195A (en) | 2012-10-24 |
| CN102743195B true CN102743195B (en) | 2014-07-23 |
Family
ID=47023948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210258822.0A Expired - Fee Related CN102743195B (en) | 2012-07-17 | 2012-07-17 | Skin biopsy trepan |
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| Country | Link |
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| CN (1) | CN102743195B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103976819A (en) * | 2014-04-23 | 2014-08-13 | 王超庆 | Cornea transplanting drill stand |
| CN105212990A (en) * | 2014-07-01 | 2016-01-06 | 李正萍 | A kind of ring cutting utensil for the treatment of skin minute lesion |
| CN107217553A (en) * | 2017-06-01 | 2017-09-29 | 芜湖中铁科吉富轨道有限公司 | One kind suspention tongue flat-nose pliers |
| CN107174295B (en) * | 2017-06-08 | 2024-02-02 | 上海长海医院 | Bone tumor biopsy system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201564506U (en) * | 2009-12-14 | 2010-09-01 | 上海市第六人民医院 | Biopsy extractor for bone disease |
| CN201939391U (en) * | 2011-01-26 | 2011-08-24 | 魏义花 | Negative pressure trepan for skin biopsy |
| CN202044292U (en) * | 2011-04-14 | 2011-11-23 | 贵州省动物疫病预防控制中心 | Animal tissue sampler |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB198688A (en) * | 1922-06-01 | 1923-07-23 | Maurice Kowler | Improvements in instruments for removing growths and bony obstructions in the nose |
| US5423330A (en) * | 1993-03-10 | 1995-06-13 | The University Of Miami | Capsule suction punch instrument and method of use |
| CN2259860Y (en) * | 1996-11-27 | 1997-08-20 | 赵东滨 | Skin cell sample taking device for biopsy |
| US20020111563A1 (en) * | 2001-02-13 | 2002-08-15 | Stanley Hall | Vacuum skin sample collection apparatus |
-
2012
- 2012-07-17 CN CN201210258822.0A patent/CN102743195B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201564506U (en) * | 2009-12-14 | 2010-09-01 | 上海市第六人民医院 | Biopsy extractor for bone disease |
| CN201939391U (en) * | 2011-01-26 | 2011-08-24 | 魏义花 | Negative pressure trepan for skin biopsy |
| CN202044292U (en) * | 2011-04-14 | 2011-11-23 | 贵州省动物疫病预防控制中心 | Animal tissue sampler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102743195A (en) | 2012-10-24 |
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Granted publication date: 20140723 Termination date: 20170717 |
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| CF01 | Termination of patent right due to non-payment of annual fee |