CN206372073U - A kind of multi-functional continuous biopsy forceps - Google Patents
A kind of multi-functional continuous biopsy forceps Download PDFInfo
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- CN206372073U CN206372073U CN201621053690.8U CN201621053690U CN206372073U CN 206372073 U CN206372073 U CN 206372073U CN 201621053690 U CN201621053690 U CN 201621053690U CN 206372073 U CN206372073 U CN 206372073U
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Abstract
The utility model is related to a kind of multi-functional continuous biopsy forceps, including handle casing, inner tube, outer tube, the first impeller；Described inner tube is inserted in outer tube, promotes the first impeller of inner and outer tubes relative movement to be arranged on handle casing；The tail end of said inner tube is provided with many valve binding clips, and described binding clip includes the jaw and elastic caliper that inward slant is set, and one end of elastic caliper and the end of inner tube are connected, and the other end of elastic caliper is connected with jaw；As inner tube is exposed or retraction outer tube, elastic caliper opens or closed.Biopsy forceps also includes recovery tube, negative pressure device；The head end of inner tube is inserted in the inside of recovery tube one end, and the other end of recovery tube is connected on negative pressure device, is provided with block piece in recovery tube, the gas channel that described inner tube, recovery tube formation are communicated.The utility model is simple in construction, biopsy tissue block is more convenient easy, belongs to the technical field of medicine equipment.
Description
Technical field
The utility model is related to the technical field of medicine equipment, more particularly to a kind of multi-functional continuous biopsy forceps.
Background technology
, there is following defect and deficiency in the conventional bioptome used in current scope clinical position：
1st, scope the most frequently used in world wide, its biopsy channel diameter is 2.8mm；To be suitable for this, biopsy forceps is commonly used
The diameter of binding clip closed mode be usually 2.2~2.5mm, the width that binding clip opens usually 6.0mm, maximum is no more than
8.0mm.Because being limited by biopsy channel diameter, biopsy forceps head and jaw can not be made to more greatly, and the tissue block of biopsy is usual
It is smaller, often because biopsy is insufficient, do not get mucous membrane holostrome need endoscopy again and Re-biopsy.
2nd, a biopsy, which can only be clamped, takes 1 piece of tissue；If moreover, occur more serious bleeding after biopsy procedure,
High-frequency electrical haemostatic clamp (also referred to as hot biopsy forceps) or other hemostatic devices need to be used instead.Operation sequence is as follows：By in biopsy forceps insertion
Mirror biopsy channel, opens biopsy clamp headend, and approaching needs biopsy site and clamp tissue, Rapid lifting biopsy forceps vice body " pincers are torn " group
Knit, biopsy forceps is extracted from endoscopic biopsy channel, biopsy clamp headend is opened, remove tissue block and be put into preservation liquid；Again will
Biopsy forceps inserts endoscopic biopsy channel, repeats aforesaid operations；The like, until the tissue number of blocks of biopsy reaches the number of needs
Amount.It is longer because that disposably biopsy can not go out the tissue number of blocks of needs, therefore operate to take, patient safety is even influenceed sometimes.
3rd, it is limited by the structure design of conventional bioptome, the tissue block of its biopsy is under " being torn " afterwards by " clamp ",
There is extruding to tissue block, add generally smaller etc. the factor of tissue block of biopsy, be difficult positioning to a small number of biopsies, it is difficult to obtain
High-quality histopathologic slide.
Utility model content
For technical problem present in prior art, the purpose of this utility model is：A kind of simple in construction, pincers are provided to take
Polylith tissue is more convenient the continuous biopsy forceps of much easier function.
In order to achieve the above object, the utility model is adopted the following technical scheme that：
A kind of multi-functional continuous biopsy forceps, including handle casing, inner tube, outer tube, the first impeller；Described inner tube is inserted in
In outer tube, the first impeller of inner and outer tubes relative movement is promoted to be arranged on handle casing；The tail end of said inner tube is provided with
Many valve binding clips, described binding clip includes the slope inwardly jaw set and elastic caliper, one end of elastic caliper and the end of inner tube
Portion is connected, and the other end of elastic caliper is connected with jaw；As inner tube is exposed or retraction outer tube, elastic caliper opens or closed.
By the opening and closing of binding clip come biopsy tissue block, using the structure of concentric tube, the length that can be stretched out by inner tube is adjusted
The size that binding clip opens, so as to realize the range size and depth of biopsy tissue block, can adjust according to conditions of patients, safely may be used
Lean on；Using the structure of concentric tube, compared to the biopsy forceps provided with steel wire, biopsy wrench structure of the present utility model is more simple, more pacifies
Complete reliable, cost is lower.
It is further：Handle casing is exposed in the upper end of first impeller, and the lower end of the first impeller is fixedly connected
On inner pipe, outer tube is mutually fixed with handle casing；
Or, handle casing is exposed in the upper end of first impeller, and the lower end of the first impeller is fixedly connected on outer tube
On, inner tube is relatively fixed with handle casing.The opening and closing of binding clip are realized, and the relative biopsy forceps provided with steel wire of structure is simple
It is many, and manufacturing cost is low, easy to utilize.
It is further：Biopsy forceps also includes recovery tube, negative pressure device；The head end of inner tube is inserted in the interior of recovery tube one end
Portion, the other end of recovery tube is connected on negative pressure device, is provided with block piece in recovery tube, described inner tube, recovery tube formation phase
Logical gas channel.When negative pressure device works, tissue block is inhaled into recovery tube from inner tube, and block piece can stop that tissue block is inhaled
Enter in negative pressure device, while block piece can allow air-flow to pass through.
It is further：Biopsy forceps also includes reclaiming piston, and the recovery piston stretched into recovery tube passes through block piece.Stop
Part can prevent tissue block from being inhaled into negative pressure cavity, while tissue block can be released by reclaiming piston.
It is further：Cotton body is provided with described recovery tube, cotton body is located between block piece and negative pressure device
In recovery tube.Cotton body can prevent liquid from flowing into negative pressure cavity, while may filter that degerming, play protective action.
It is further：Described negative pressure device is included outside vavuum pump and the battery for being powered to vavuum pump, handle
The outside of shell is provided with the power switch for being used for starting vavuum pump.Turn on the power switch, vavuum pump can be started, make inner tube, recovery tube
Gas channel formation negative pressure, so as to by tissue block suck recovery tube in.
It is further：Described negative pressure device includes the negative pressure piston that vacuum cavity and negative relative cavity are moved, institute
The negative pressure piston and vacuum cavity stated surround negative pressure cavity, and vacuum cavity is provided with check valve；Biopsy forceps also includes connecting tube, second
Impeller, seal；Described recovery tube is connected on negative pressure device by connecting tube, and connecting tube is communicated with negative pressure cavity, described
The second impeller stretch into connecting tube, seal is arranged on the end of the second impeller, and the second impeller passes through seal
Control the connected state between connecting tube and negative pressure cavity.When negative pressure cavity is negative pressure state, the second impeller, inner tube, recovery are pressed
Pipe, connecting tube, negative pressure cavity connection, so as to aspirates tissue block.
It is further：Spring is provided with described connecting tube, spring housing is on the second impeller, described seal
In negative pressure cavity, described connecting tube and negative pressure cavity formation connected entrance, the area of seal end face are more than the area of connected entrance.
By the second impeller, the connection between connecting tube and negative pressure cavity can be controlled with not connecting；Simultaneously because the reset of spring is made
With connected entrance can be made not connected with negative pressure cavity in normally off, i.e. connecting tube.
It is further：Biopsy forceps also includes the 3rd impeller for being used to control negative pressure piston to move.
It is further：Biopsy forceps also includes the high frequency electrical socket that is electrically connected with inner tube, described inner tube and binding clip by
Electric conductor is made, and the inwall of the outer tube, the outer wall of inner tube, the outer wall of binding clip are equipped with insulating barrier.Electricity can be carried out to tissue block
Solidifying hemostasis.
Generally speaking, the utility model has the following advantages that：
1st, the utility model uses the structure of concentric tube, can adjust the size, scope and depth of biopsy tissue block, safely may be used
Lean on, simple in construction, cost it is low.
2nd, the utility model is provided with negative pressure device and recovery tube, and insertion biopsy forceps once, can continuous biopsy polylith live body group
Knit (in theory can up to tens of pieces).
3rd, recovery tube of the present utility model is disposable, and the tissue block of polylith biopsy can be disposably reclaimed after dismounting,
Meet national sterilizing endoscope technical specification.
4th, negative pressure device of the present utility model is detachable, and reusable, and can be using suitable electronic or manual
Negative pressure device.
5th, the utility model is taken out after negative pressure device and recovery tube, flushable and soaking disinfection.
6th, binding clip of the present utility model is three valve structures, it is easier to which pincers, which are obtained, arrives required tissue block, is particularly easier to
Fetch bit is clamped in the tissue of side.
Brief description of the drawings
Fig. 1 is a kind of structural representation schematic diagram of mode of the utility model, and wherein binding clip only depicts two valves.
Fig. 2 is the structural representation schematic diagram of another mode of the utility model, and wherein binding clip only depicts two valves.
Fig. 3 is the structural representation schematic diagram that the utility model binding clip opens, and air-vent is arranged on jaw.
Fig. 4 is the structural representation schematic diagram of the utility model binding clip closure, and air-vent is arranged on jaw.
Fig. 5 is the schematic diagram that the utility model is integrated on a handle casing.
Fig. 6 is the principle schematic of electric coagulation hemostasis.
Fig. 7 is the structural representation schematic diagram that the utility model binding clip opens, and air-vent is arranged on jaw and elastic caliper
Intersection.
Fig. 8 is the structural representation schematic diagram of the utility model binding clip closure, and air-vent is arranged on jaw and elastic caliper
Intersection.
Fig. 9 is the structural representation schematic diagram that the utility model binding clip opens, and all jaws surround an air-vent.
Figure 10 is the structural representation schematic diagram of the utility model binding clip closure, and all jaws surround an air-vent.
Wherein, 1 is the first impeller, and 2 be the second impeller, and 3 be the 3rd impeller, and 4 be socket pipe, and 5 be outer tube, and 6 are
Inner tube, 7 be recovery tube, and 8 be connecting tube, and 9 be the elastic caliper of binding clip, and 10 be the jaw of binding clip, and 11 be block piece, and 12 be recovery
Piston, 13 be spring, and 14 be seal, and 15 be the vacuum cavity of negative pressure device, and 16 be negative pressure cavity, and 17 be the negative pressure of negative pressure device
Piston, 18 be check valve, and 19 be cotton body, and 20 be high frequency electrical socket, and 21 be thumb ring, and 22 be connected entrance, and 23 open for power supply
Close, 24 be handle casing, and 25 be vavuum pump, and 26 be battery, and 27 be air-vent, and 28 be transparency window, and 29 be radio-frequency generator, 30
It is active electrode for cable, 31,32 be neutral electrode.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Hereafter up and down direction of the described direction up and down with Fig. 1 in itself is consistent.
For sake of convenience, hereafter the direction up and down of described direction up and down with Fig. 1 in itself is consistent, hereafter described
Inward-outward direction refer to that the center line that inner tubal wall points to inner tube be interior, and the center line of inner tube sensing inner tubal wall is outer.
With reference to shown in Fig. 1 to Fig. 4, a kind of multi-functional continuous biopsy forceps, including handle casing, inner tube, outer tube, the first promotion
Part；Described inner tube is inserted in outer tube, i.e., inner tube is located in outer tube, and inner and outer tubes use the structure of concentric tube, and inner tube can be with
Move up and down (outer tube is fixed), or outer tube can be moved up and down (inner tube is fixed), promote the of inner and outer tubes relative movement
One impeller is arranged on handle casing.The tail end (i.e. the lower end of inner tube) of said inner tube is provided with many valve binding clips, many valve binding clip edges
The circumferencial direction for inner tube is uniformly distributed, in the utility model, and binding clip is 3 valves, and according to actual needs, the quantity of binding clip can be set
Count into other.Described binding clip includes the slope inwardly jaw set and elasticity caliper, and jaw and elastic caliper are in certain angle
Degree (generally 135 °), the incline direction of jaw is to be tilted by the direction of interior lower section top outward, and the inclined degree of jaw is whole
Individual biopsy forceps is just secured after being produced in factory.One end (upper end of elastic caliper) of elastic caliper and the end of inner tube
(lower end of inner tube) is connected, and the other end (lower end of elastic caliper) of elastic caliper is connected with jaw；Inner tube, elastic caliper, pincers
What mouth can be integrally formed, as inner tube is exposed or retraction outer tube, elastic caliper opens or closed, outside inner tube is slowly exposed
During pipe, it is flared out within elastic caliper centered on the center line of pipe, during inner tube slowly retraction outer tube, bullet
Property caliper is inwardly closed centered on the center line of inner tube, and elastic caliper has certain elasticity, there is outward trend.Pincers
During head closure, from the end face of inner tube, all jaws can seal up inner tube, it is a kind of preferably, all jaws
A circle is surrounded, the circular diameter is equal to the diameter of outer wall of inner tube, and each jaw is in sector.Flowed into for ease of air-flow interior
In pipe, described binding clip is provided with air-vent, and air-vent (as shown in Figure 3 and Figure 4) can be provided with each jaw, can also
Be provided with air-vent (as shown in Figure 7 and Figure 8) in the joint of jaw and elastic caliper, can also all jaws surround one thoroughly
Stomata (as shown in Figure 9 and Figure 10)；Jaw is zigzag, can be anti-skidding, and convenient pincers take harder tissue, and jaw is in sector and is provided with
Air-vent can prevent Tissue approximation and and clamp the tissue taken using vacuum suction.Kept inside binding clip airtight, smooth.This programme
In, different from the current valve structure of conventional bioptome two, binding clip uses the structure type of 3 valves, and three pincers valves are connected with inner tube respectively,
Without articulating joint, compared to the structure type that binding clip uses 2 valves, the structure type of 3 valves can make the clamping tissue that binding clip is more prone to
Block；Pincers fetch bit is particularly easier in the tissue of side.The structure type of 2 valves, if tissue block is not in opening that 2 valve jaws open
On mouth, then it is not easy gripping and arrives tissue block.
Locations of structures relation between first impeller, inner tube, outer tube, handle casing has various ways：The first is：The
Handle casing is exposed in the upper end of one impeller, and the end of the first impeller is provided with thumb ring, convenient use person's operation, such as Fig. 1
Shown, the lower end of the first impeller is fixedly connected on inner pipe, and outer tube is mutually fixed with handle casing, when provided with negative pressure device and return
During closed tube (being mentioned below), the top of inner tube should be located at the inside of handle casing, and the top of outer tube can be located at the interior of handle casing
Portion, the top of outer tube can also be connected on handle casing.It is for second：Expose handle casing, first in the upper end of first impeller
The end of impeller is provided with thumb ring, convenient use person's operation, as shown in Fig. 2 the lower end of the first impeller is fixedly connected on
On outer tube, inner tube is relatively fixed with handle casing, when provided with negative pressure device and during recovery tube (being mentioned below), outer tube and inner tube
Top should be located at the inside of handle casing, and the top of inner tube is inserted in recovery tube, and inner tube can be fixed on recovery tube, inner tube
It can also be fixed on handle casing.First impeller is in rhabodoid.Between first impeller, inner tube, outer tube, handle casing
Locations of structures relation, can realize opening and closing for binding clip, and structure is simple more compared with the prior art, and manufacturing cost
It is low, it is easy to utilize.
Biopsy forceps also includes recovery tube, negative pressure device；The head end (upper end of inner tube) of inner tube is inserted in the interior of recovery tube one end
Portion, the other end of recovery tube is connected on negative pressure device, is provided with block piece in recovery tube, described inner tube, recovery tube formation phase
Logical gas channel.Inner tube, recovery tube, the junction of negative pressure device should ensure that air-tightness is good, prevent gas from leaking.Negative pressure is filled
When putting work, tissue block is inhaled into recovery tube from inner tube, and block piece can stop that tissue block is inhaled into negative pressure device, is hindered simultaneously
Block piece can allow air-flow to pass through, and block piece can be designed to band network structure.
Biopsy forceps also includes reclaiming piston, and the recovery piston stretched into recovery tube passes through block piece.Piston is reclaimed with reclaiming
The intersection of pipe should keep sealing, prevent air circulation.In recovery tube during suction tissue block, piston is moved down, then is organized
Block is skidded off out of recovery tube.After provided with piston is reclaimed, block piece can also make recovery piston have individual upper extreme position.
Cotton body is provided with described recovery tube, cotton body is located in the recovery tube between block piece and negative pressure device.I.e.
In block piece toward on the direction of negative pressure device, cotton body is filled with recovery tube.Cotton body can prevent some liquid from flowing into
In negative pressure device, play a part of that splashproof is anti-pollution and filtration sterilization, cotton body can be cellucotton, non-woven fabrics or cotton etc..
With reference to shown in Fig. 1, the species of negative pressure device is a lot, and the structure of the first negative pressure device is：Negative pressure device includes true
Empty pump and the battery for being powered to vavuum pump, the outside of handle casing are provided with the power switch for being used for starting vavuum pump.Beat
Switch power supply is switched, and can start vavuum pump, makes inner tube, the gas channel formation negative pressure of recovery tube, so as to which tissue block is sucked back
In closed tube.Electric negative pressure device can select Miniature direct current diaphragm vavuum pump, Wiper blade type vavuum pump etc..
Under the structure using the first negative pressure device, following structure can be increased：In in handle casing, promotion inner tube
Vavuum pump starting switch of first impeller provided with linkage, inner tube stretches out outer tube and opens vavuum pump when reaching at utmost,
So as to so that the tissue that pincers take passes through in vacuum suction to recovery tube.Or it is on the contrary, outer in handle casing, promotion
Vavuum pump starting switch of first impeller of pipe provided with linkage, outer tube retraction stretches out inner tube and opened when reaching at utmost
Vavuum pump is opened, so as to so that the tissue that pincers take passes through in vacuum suction to recovery tube.
With reference to shown in Fig. 2, the structure of second of negative pressure device is：Negative pressure device includes vacuum cavity and negative relative chamber
The negative pressure piston of body movement, described negative pressure piston and vacuum cavity surrounds negative pressure cavity, and vacuum cavity is provided with check valve；Open
Check valve, negative pressure cavity and air are communicated；Check valve is closed, negative pressure cavity is not connected with air；Check valve can use unidirectional barrier film.It is living
Inspection pincers also include connecting tube, the second impeller, seal；Described recovery tube is connected on negative pressure device by connecting tube, i.e.,
One end of recovery tube connects with inner tube, and the other end of recovery tube connects with connecting tube, and connecting tube is communicated with negative pressure cavity, and described is interior
The gas channel that pipe, recovery tube, connecting tube, the negative pressure cavity formation of negative pressure device are communicated；The second described impeller stretches into connection
In pipe, seal is arranged on the end of the second impeller, the second impeller by seal control connecting tube and negative pressure cavity it
Between connected state；When negative pressure cavity is negative pressure state, the second impeller is pressed, inner tube, recovery tube, connecting tube, negative pressure cavity are connected,
So as to aspirates tissue block.The negative pressure device of this structure, which is equipped with connecting tube, the second impeller, seal, can also inhale tissue block
Enter in recovery tube, structure is somewhat more complex, but negative pressure state can be manually form, it is not necessary to expend electric energy.
Under the structure using the second negative pressure device, following structure can be increased：Spring, spring are provided with described connecting tube
It is sleeved on the second impeller, described seal is located in negative pressure cavity, and seal is arranged on the lower end of the second impeller, even
Adapter and negative pressure cavity form connected entrance in place of connecting, the area of seal end face is more than the area of connected entrance.Press the second promotion
During part, when the second impeller is moved downward, connected entrance is opened, and connecting tube and negative pressure cavity are communicated；When unclamping the second control piece, due to
The reset response of spring, the second impeller is moved upwards, and connected entrance is enclosed, and connecting tube and negative pressure cavity are not communicated with.Can control company
Connected state between adapter and negative pressure cavity.Biopsy forceps also includes the 3rd impeller for being used to control negative pressure piston to move, the 3rd
Impeller is arranged on negative pressure device, and moving up and down for negative pressure piston can be controlled by moving up and down for the 3rd impeller.Press
The collar on lower 3rd impeller, the negative pressure piston of negative pressure device is moved downward, and negative pressure state is formed in negative pressure cavity (at check valve
In closed mode), the negative pressure device is manual negative pressure device, and the movement of negative pressure piston is directly controlled by the 3rd impeller.
The end of second impeller and the 3rd impeller is provided with thumb ring, and convenient use person's operation, the second impeller and the 3rd is promoted
The upper end of part should expose outside handle casing.
With reference to shown in Fig. 5, recovery tube, the first impeller, negative pressure device etc. are integrated in a handle casing, outside handle
Shell is provided with openable transparency window, by transparency window it is observed that whether tissue block is by vacuum suction to recovery tube
Situation；Transparency window is opened, negative pressure device can be dismantled.
Biopsy forceps also includes the high frequency electrical socket electrically connected with inner tube, and high frequency electrical socket is connected by electric wire with inner tube, high
Frequency electrical socket can be arranged on handle casing, can also be arranged on the bottom of handle casing.It is arranged on the bottom of handle casing
When, in this way one socket pipe can be set in the outside of outer tube again, socket pipe is cylindrical, and the upper end of socket pipe is fixed
It is connected on handle casing, high frequency electrical socket is arranged on socket pipe, and then high frequency electrical socket is connected by electric wire with inner tube again.
Described inner tube and binding clip is made by electric conductor, and the inwall of the outer tube, the outer wall of inner tube, the outer wall of binding clip are equipped with insulation
Layer.High frequency electrical socket coordinates other relevant devices (being described below text) again, you can the tissue block taken to clamping stops blooding.
The physics principle that high-frequency electrocoagulation stops blooding is briefly described below：
Three kinds of effects can be produced when electric current is by tissue：Electrolytic effect, Faraday effect and fuel factor.It is therein
Fuel factor is：When more than 300kHz high frequency electric flows through tissue, electric current produces fuel factor.Thermal effect should have following three kinds
Application mode：TURP (equivalent to scalpel), coagulation (equivalent to haemostatic clamp) and fulguration.
With reference to shown in Fig. 6, the equipment required for producing coagulation effect has radio-frequency generator, cable, active electrode and neutrality
Electrode.The larger neutral electrode of bond area on patient body, neutral electrode is taken place frequently by cable connection to radio-frequency generator, height
Raw device passes through cable connection active electrode.The electric current for flowing through active electrode and neutral electrode is equal, but the contact of the two electrodes
Area is entirely different, and neutral electrode contact area is big, and current density is low, thus will not injured patient skin；On the contrary, making electricity consumption
The contact area of pole is small, and current density is big, by the combination of high current density and tissue electrical impedance, and active electrode can just be produced
Raw required local heat effect, so as to play the effect of electric coagulation hemostasis.In the utility model, radio-frequency generator is connected by cable
High frequency electrical socket is connected to, and high frequency electrical socket is connected by electrical wiring to inner tube, inner tube is in contact with binding clip, therefore the utility model
Binding clip equivalent to active electrode.
When drawing first piece of tissue block using the utility model, the utility model is inserted in endoscope movable detecting hole, started negative
Pressure device, makes inner tube and recovery tube be in negative pressure state, binding clip is in open configuration, the tissue block needed for reaching, then
Binding clip is in closure state, required tissue block is taken so as to clamp, binding clip is unclamped tissue block, negative pressure device is at once by group
Knit in block suction recovery tube, reclaim piston and block piece stops that tissue block is inhaled into negative pressure device.Repeat, you can pincers take the
Two pieces of tissue blocks, and biopsy forceps need not take out from endoscope movable detecting hole, until biopsy obtains the tissue block of requirement.In work
After the completion of inspection, hemostasis is such as needed, makes radio-frequency generator in running order, the tissue block for making jaw pincers take needs to stop blooding slightly is lifted
Binding clip, you can electric coagulation hemostasis.After the completion of biopsy, recovery tube is disassembled, the tissue block that takes will be clamped and be put into has tissue and fixes
In the biopsy bottle of liquid.
When being not provided with negative pressure device in the utility model or when negative pressure device fails, can do conventional bioptome makes
With.The process of biopsy tissue block is as follows：The utility model is inserted in endoscope movable detecting hole, binding clip is in open configuration,
Tissue block needed for reaching, then binding clip is in closure state, required tissue block is taken so as to clamp, then again biopsy forceps is taken out
Human body, the tissue block that pincers are taken is put into biopsy bottle.Then repeat, pincers take minor microstructure block.
Recovery tube is disposable, i.e. discarded after the completion of biopsy, removes negative pressure device and recovery tube, is rinsed in binding clip
Portion, and biopsy forceps is put into soaking disinfection in thimerosal.Negative pressure device can be used for multiple times.
Above-described embodiment is the utility model preferably embodiment, but embodiment of the present utility model is not by above-mentioned
The limitation of embodiment, it is other it is any without departing from Spirit Essence of the present utility model with made under principle change, modify, replace
Generation, combination, simplification, should be equivalent substitute mode, are included within protection domain of the present utility model.
Claims (10)
1. a kind of multi-functional continuous biopsy forceps, it is characterised in that：Including handle casing, inner tube, outer tube, the first impeller；It is described
Inner tube be inserted in outer tube, promote inner and outer tubes relative movement the first impeller be arranged on handle casing；Said inner tube
Tail end be provided with many valve binding clips, described binding clip includes sloping inwardly the jaw and elastic caliper set, one end of elastic caliper
It is connected with the end of inner tube, the other end of elastic caliper is connected with jaw；As inner tube is exposed or retraction outer tube, elastic caliper
Open or close.
2. according to a kind of multi-functional continuous biopsy forceps described in claim 1, it is characterised in that：The upper end of first impeller
Expose handle casing, the lower end of the first impeller is fixedly connected on inner pipe, and outer tube is mutually fixed with handle casing；
Or, handle casing is exposed in the upper end of first impeller, and the lower end of the first impeller is fixedly connected on outer tube, interior
Pipe is relatively fixed with handle casing.
3. according to a kind of multi-functional continuous biopsy forceps described in claim 1, it is characterised in that：Biopsy forceps also include recovery tube,
Negative pressure device；The head end of inner tube is inserted in the inside of recovery tube one end, and the other end of recovery tube is connected on negative pressure device, recovery tube
It is interior to be provided with block piece, the gas channel that described inner tube, recovery tube formation are communicated.
4. according to a kind of multi-functional continuous biopsy forceps described in claim 3, it is characterised in that：Biopsy forceps also includes reclaiming living
Plug, the recovery piston stretched into recovery tube passes through block piece.
5. according to a kind of multi-functional continuous biopsy forceps described in claim 3, it is characterised in that：Cotton is provided with described recovery tube
Plastid, cotton body is located in the recovery tube between block piece and negative pressure device.
6. according to a kind of multi-functional continuous biopsy forceps described in claim 3, it is characterised in that：Described negative pressure device includes true
Empty pump and the battery for being powered to vavuum pump, the outside of handle casing are provided with the power switch for being used for starting vavuum pump.
7. according to a kind of multi-functional continuous biopsy forceps described in claim 3, it is characterised in that：Described negative pressure device includes negative
The negative pressure piston of cavity and the movement of negative relative cavity is pressed, described negative pressure piston and vacuum cavity surrounds negative pressure cavity, negative pressure cavity
Body is provided with check valve；Biopsy forceps also includes connecting tube, the second impeller, seal；Described recovery tube is connected by connecting tube
It is connected on negative pressure device, connecting tube is communicated with negative pressure cavity, the second described impeller is stretched into connecting tube, seal is arranged on
On the end of two impellers, the second impeller controls the connected state between connecting tube and negative pressure cavity by seal.
8. according to a kind of multi-functional continuous biopsy forceps described in claim 7, it is characterised in that：Bullet is provided with described connecting tube
Spring, spring housing is on the second impeller, and described seal is located in negative pressure cavity, and described connecting tube and negative pressure cavity formation connect
Port, the area of seal end face is more than the area of connected entrance.
9. according to a kind of multi-functional continuous biopsy forceps described in claim 7, it is characterised in that：Biopsy forceps also includes being used to control
3rd impeller of negative pressure piston movement.
10. according to a kind of multi-functional continuous biopsy forceps described in claim 1, it is characterised in that：Biopsy forceps also includes and inner tube
The high frequency electrical socket of electrical connection, described inner tube and binding clip is made by electric conductor, the inwall of the outer tube, the outer wall of inner tube,
The outer wall of binding clip is equipped with insulating barrier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621053690.8U CN206372073U (en) | 2016-09-13 | 2016-09-13 | A kind of multi-functional continuous biopsy forceps |
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| CN201621053690.8U CN206372073U (en) | 2016-09-13 | 2016-09-13 | A kind of multi-functional continuous biopsy forceps |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107582108A (en) * | 2016-09-13 | 2018-01-16 | 张卫民 | A kind of biopsy forceps and binding clip |
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2016
- 2016-09-13 CN CN201621053690.8U patent/CN206372073U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107582108A (en) * | 2016-09-13 | 2018-01-16 | 张卫民 | A kind of biopsy forceps and binding clip |
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