CN205234625U - Radio frequency array needle - Google Patents
Radio frequency array needle Download PDFInfo
- Publication number
- CN205234625U CN205234625U CN201520886974.4U CN201520886974U CN205234625U CN 205234625 U CN205234625 U CN 205234625U CN 201520886974 U CN201520886974 U CN 201520886974U CN 205234625 U CN205234625 U CN 205234625U
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- China
- Prior art keywords
- needle
- needle handle
- ablation
- radio frequency
- movable block
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Abstract
The utility model discloses a radio frequency array needle, include the needle handle, fix the outer needle pipe on the needle handle to and set up four of outer needle pipe end portion be two lines and two arrange melt the needle, still including melting needle protection mechanism, melt needle protection mechanism and include: protective sheath, cover establish on four melt the needle and with respectively melt needle sliding fit, the driving medium, one end is fixed with the protective sheath, and the other end extends to on the needle handle, control mechanism sets up on the needle handle for the part that stretches into the needle handle with the driving medium cooperates. The utility model discloses a plurality ofly needle design is melted, the scope of melting can be increaseed for the time of melting is shorter, thereby reduces the operation risk, can effectively protect and melt the needle through setting up the protective sheath, can prevent to melt the syringe needle and stab the human organ, it is contaminated to prevent to melt the syringe needle again, through setting up driving medium and control mechanism, the protective sheath can light switching under two types.
Description
Technical field
The utility model relates to medicine equipment, is specifically related to radio frequency array pin.
Background technology
Resection operation remains one of main radical treatment means of liver tumour at present, but in art or postoperative hemorrhage be operation on liver the most common, be also one of the most unmanageable complication. Data show approximately have 20%～60% patient to lose blood and have to accept blood transfusion because of operation, a large amount of lose blood and transfuse blood and be to affect the key factor that liver cancer recurs more afterwards. How Bleeding control is the emphasis of operation on liver technology always. The hemorrhage control mode of conventional liver has the technology such as low pressure anesthesia, part or full hepatic vascular exclusion, but these methods may increase hepatic disorder or liver failure; If waste time and energy with large vessel forceps processing is hemorrhage, and still likely occur the situation of massive haemorrhage. Radio-frequency ablation technique is widely applied in the treatment of above-mentioned disease because of the haemostatic effect that well melts that it has, but on market, existing radio-frequency ablation electrode adopts single needle more, ablation range is little, need repeatedly melt, operating time is elongated, increase patient's misery, increased the danger of complication, reduced result for the treatment of; And existing radio frequency ablation needle discharging efficiency is lower on market, together with ablation needle working position is easily sticky in human organ, impact is used.
Utility model content
The utility model, for the problems referred to above, overcomes at least one deficiency, has solved prior art because ablation needle ablation range is little, causes the time of melting longer, increases the problem of operation risk.
The technical scheme that the utility model is taked is as follows:
A kind of radio frequency array pin, comprises needle handle, is fixed on the outer needle tubing on needle handle and is arranged at least three ablation needles of outer syringe tip, each ablation needle is uniformly distributed along outer needle tubing axis direction.
Multiple ablation needle designs, can strengthen ablation range, make the time of melting shorter, thereby reduce operation risk.
Further, also comprise ablation needle protection mechanism, described ablation needle protection mechanism comprises:
Protective sleeve, is set on each ablation needle and with each ablation needle and is slidably matched;
Driving member, one end and described protective sleeve are fixed, and the other end extends on described needle handle;
Controlling organization, is arranged on described needle handle, coordinates for the part that stretches into needle handle with driving member.
Further, described driving member is metallic rod, wire, push rod or elastoplast bar.
Ablation needle protection mechanism has two states, and one is duty, and under this state, protective sleeve covers ablation needle syringe needle; Another kind is released state, under the effect of controlling organization, and driving member motion, thus make protective sleeve to the direction motion near needle handle, now melt syringe needle and expose, can melt work; Can effectively protect ablation needle by protective sleeve is set, can prevent that melting syringe needle stabs human organ, can prevent again melting syringe needle contaminated; By driving member and controlling organization are set, protective sleeve can easily switch under two states.
Further, described driving member is bracing wire, and described ablation needle protection mechanism also comprises:
Back-moving spring, two ends respectively with protective sleeve and outer syringe tip against, back-moving spring is for driving described protective sleeve to the direction motion away from outer needle tubing.
Because bracing wire is flexible, by being set, can realize by back-moving spring the switching of two kinds of duties of protection mechanism. Under duty, bracing wire discharges, and protective sleeve moves under the pressure of back-moving spring, and ablation needle syringe needle is covered; Under released state, under the effect of controlling organization, bracing wire is pulled, thereby makes protective sleeve to the direction motion near needle handle, now melts syringe needle and exposes, and can melt work.
Further, described controlling organization comprises:
Trigger, is slidably arranged on needle handle;
Trigger reduction torsion spring, for driving trigger to reset;
Movable block, is slidably arranged on described needle handle, and it is relative with movable block fixing that described driving member stretches into one end of needle handle;
Drive link, two ends are separately positioned on trigger and movable block, in the time that trigger moves, drive movable block to move.
Can drive movable block to move by the cooperation of trigger and drive link, can in the time that trigger does not stress, automatically reset by trigger reduction torsion spring, make ablation needle protection mechanism in running order.
Further, described controlling organization also comprises with described movable block and coordinating, the limited block of moving-limiting piece stroke; Movable block, between outer needle tubing and limited block, has an adjustment hole and some locating slots on described needle handle, described limited block comprises:
Moving part, is slidably arranged on needle handle;
Press section, upper end passes described adjustment hole, and lower end has the projection coordinating with described locating slot;
The elastic joint part of L-type, two ends are fixed with described moving part and press section respectively.
When work, exerted pressure in press section, projection departs from from locating slot, and moving part can move, and moves to after correspondence position, discharges press section, and under the effect of elastic joint part, press section resets, and protruding with corresponding locating slot coordinates, and limited block is locked. This structure can conveniently regulate the position of limited block, thereby can control as required the stroke of movable block, controls the distance that driving member is pulled.
Further, described movable block has a draw-in groove, and described controlling organization also comprises:
Fixed fastener, comprises and the relatively-stationary fixed part of needle handle, and for the dop portion of described draw-in groove engagement limits movable block motion and be connected described fixed part and the elastic portion of dop portion, described dop portion has arc groove;
Unlock piece, is fixed on trigger, and unlock piece has for coordinating with described arc groove, makes elastic portion distortion, and dop portion moves the projection departing from draw-in groove.
In the time that trigger resets under the effect of trigger reduction torsion spring, unlock piece moves with trigger, and projection coordinates with arc groove, make elastic portion distortion, in the time that dop portion is positioned at arc groove region, under the effect of elastic portion, dop portion resets, and coordinates, by movable block limited post with arc groove; In the time of cocking, unlock piece drives projection motion, and projection coordinates with arc groove, makes elastic portion distortion, and dop portion moves with draw-in groove and departs from, and movable block can slide under the effect of drive link.
Further, on described needle handle, there is the press button for controlling ablation needle.
Further, described ablation needle is coated with titanium nitride.
Can effectively improve the discharging efficiency of ablation needle by being coated with titanium nitride, and titanium nitride is smooth, is difficult for human organ sticky glutinous.
The beneficial effects of the utility model are: multiple ablation needle designs, can strengthen ablation range, and make the time of melting shorter, thereby reduce operation risk; Can effectively protect ablation needle by protective sleeve is set, can prevent that melting syringe needle stabs human organ, can prevent again melting syringe needle contaminated.
Brief description of the drawings:
Fig. 1 is the structural representation of the utility model radio frequency array pin;
Fig. 2 is the internal structure schematic diagram of needle handle under released state;
Fig. 3 is the internal structure schematic diagram of needle handle under lock-out state;
Fig. 4 is the structural representation of movable block;
Fig. 5 is the structural representation of fixed fastener;
Fig. 6 is the structural representation of trigger;
Fig. 7 is the structural representation of limited block;
Fig. 8 is the partial schematic diagram of embodiment 2 ablation needles.
In figure, each Reference numeral is:
1, protective sleeve, 2, driving member, 3, ablation needle, 4, outer needle tubing, 5, needle handle; 6, adjustment hole, 7, fixed fastener, 8, projection, 9, unlock piece, 10, limited block; 11, movable block, 12, locating slot, 13, press button, 14, trigger, 15, projection; 16, press section, 17, elastic joint part, 18, moving part, 19, drive link; 20, trigger reduction torsion spring, 21, draw-in groove, 22, dop portion, 23, arc groove; 24, elastic portion, 25, fixed part, 26, bracing wire, 27, back-moving spring.
Detailed description of the invention:
Below in conjunction with each accompanying drawing, the utility model is described in detail.
Embodiment 1
As shown in Figure 1,2 and 3, a kind of radio frequency array pin, comprises needle handle 5, is fixed on the outer needle tubing 4 on needle handle and is arranged at least three ablation needles of outer syringe tip, each ablation needle is uniformly distributed along outer needle tubing axis direction. In the present embodiment, be that 3, four ablation needles 3 of four ablation needles are two row and two row are arranged.
Radio frequency array pin also comprises ablation needle protection mechanism, and ablation needle protection mechanism comprises:
Protective sleeve 1, is set on four ablation needles 3 and with each ablation needle and is slidably matched;
Driving member 2, one end and protective sleeve 1 are fixing, and the other end extends on needle handle 5;
Controlling organization, is arranged on needle handle, coordinates for the part that stretches into needle handle with driving member.
In the present embodiment, driving member 2 is metallic rod, wire, push rod or elastoplast bar.
As shown in Figures 2 and 3, controlling organization comprises:
Trigger 14, is slidably arranged on needle handle;
Trigger reduction torsion spring 20, for driving trigger 14 to reset;
Movable block 11, is slidably arranged on needle handle, and it is relative with movable block fixing that driving member stretches into one end of needle handle;
Drive link 19, two ends are separately positioned on trigger 14 and movable block 11, in the time that trigger moves, drive movable block to move.
Can drive movable block to move by the cooperation of trigger and drive link, can in the time that trigger does not stress, automatically reset by trigger reduction torsion spring, make ablation needle protection mechanism in running order.
When practice; driving member is not only confined to metallic rod, wire, push rod or elastoplast bar; there is no particular limitation for the material of driving member and shape; as long as driving member has certain rigidity, meets medical science safety requirements; and can drive protective sleeve to move back and forth along the length direction of ablation needle, typically the shape of drive link is preferably selected shaft-like or thread.
As shown in Fig. 1,2,3 and 7, in the present embodiment, controlling organization also comprises with movable block and coordinating, the limited block 10 of moving-limiting piece stroke; Movable block, between outer needle tubing and limited block, has an adjustment hole 6 and some locating slots 12 on needle handle, limited block 10 comprises:
Moving part 18, is slidably arranged on needle handle;
Press section 16, upper end passes adjustment hole, and lower end has the projection 15 coordinating with locating slot;
The elastic joint part 17 of L-type, two ends are fixed with moving part and press section respectively.
When work, exerted pressure in press section, projection departs from from locating slot, and moving part can move, and moves to after correspondence position, discharges press section, and under the effect of elastic joint part, press section resets, and protruding with corresponding locating slot coordinates, and limited block is locked. This structure can conveniently regulate the position of limited block, thereby can control as required the stroke of movable block, controls the distance that driving member is pulled.
As shown in Fig. 2,3,4,5 and 6, in the present embodiment, movable block has a draw-in groove 21, and controlling organization also comprises:
Fixed fastener 7, comprises and the relatively-stationary fixed part 25 of needle handle, and for the dop portion 22 of draw-in groove engagement limits movable block motion and be connected and fixed portion and the elastic portion of dop portion 24, dop portion has arc groove 23;
Unlock piece 9, is fixed on trigger 14, and unlock piece 9 has for coordinating with arc groove, makes elastic portion distortion, and dop portion moves the projection 8 departing from draw-in groove.
In the time that trigger resets under the effect of trigger reduction torsion spring, unlock piece moves with trigger, and projection coordinates with arc groove, make elastic portion distortion, in the time that dop portion is positioned at arc groove region, under the effect of elastic portion, dop portion resets, and coordinates, by movable block limited post with arc groove; In the time of cocking, unlock piece drives projection motion, and projection coordinates with arc groove, makes elastic portion distortion, and dop portion moves with draw-in groove and departs from, and movable block can slide under the effect of drive link.
As shown in Figures 2 and 3, on needle handle, there is the press button 13 for controlling ablation needle.
In the present embodiment, ablation needle is coated with titanium nitride. Can effectively improve the discharging efficiency of ablation needle by being coated with titanium nitride, and titanium nitride is smooth, is difficult for human organ sticky glutinous.
The radio frequency array pin of the present embodiment, four are the ablation needle design that two row and two row are arranged, and can strengthen ablation range, make the time of melting shorter, thereby reduce operation risk. Ablation needle protection mechanism has two states, and one is duty, and under this state, protective sleeve covers ablation needle syringe needle; Another kind is released state, under the effect of controlling organization, and driving member motion, thus make protective sleeve to the direction motion near needle handle, now melt syringe needle and expose, can melt work; Can effectively protect ablation needle by protective sleeve is set, can prevent that melting syringe needle stabs human organ, can prevent again melting syringe needle contaminated; By driving member and controlling organization are set, protective sleeve can easily switch under two states.
Embodiment 2
As shown in Figure 8, the difference of the present embodiment and embodiment 1 is, driving member is bracing wire 26, and ablation needle protection mechanism also comprises:
Back-moving spring 27, two ends respectively with protective sleeve 1 and outer needle tubing 4 ends against, back-moving spring is for driving protective sleeve to the direction motion away from outer needle tubing.
In the present embodiment, because bracing wire is flexible, by being set, can realize by back-moving spring the switching of two kinds of duties of protection mechanism. Under duty, bracing wire discharges, and protective sleeve moves under the pressure of back-moving spring, and ablation needle syringe needle is covered; Under released state, under the effect of controlling organization, bracing wire is pulled, thereby makes protective sleeve to the direction motion near needle handle, now melts syringe needle and exposes, and can melt work.
The foregoing is only preferred embodiment of the present utility model; not thereby limit scope of patent protection of the present utility model; the equivalent structure transformation that every utilization the utility model description and accompanying drawing content are done; directly or indirectly be used in other relevant technical fields, be all in like manner included in protection domain of the present utility model.
Claims (8)
1. a radio frequency array pin; it is characterized in that, comprise needle handle, be fixed on the outer needle tubing on needle handle and be arranged at least three ablation needles of outer syringe tip, each ablation needle is uniformly distributed along outer needle tubing axis direction; also comprise ablation needle protection mechanism, described ablation needle protection mechanism comprises:
Protective sleeve, is set on each ablation needle and with each ablation needle and is slidably matched;
Driving member, one end and described protective sleeve are fixed, and the other end extends on described needle handle;
Controlling organization, is arranged on described needle handle, coordinates for the part that stretches into needle handle with driving member.
2. radio frequency array pin as claimed in claim 1, is characterized in that, described driving member is metallic rod, wire, push rod or elastoplast bar.
3. radio frequency array pin as claimed in claim 1, is characterized in that, described driving member is bracing wire, and described ablation needle protection mechanism also comprises:
Back-moving spring, two ends respectively with protective sleeve and outer syringe tip against, back-moving spring is for driving described protective sleeve to the direction motion away from outer needle tubing.
4. radio frequency array pin as claimed in claim 1, is characterized in that, described controlling organization comprises:
Trigger, is slidably arranged on needle handle;
Trigger reduction torsion spring, for driving trigger to reset;
Movable block, is slidably arranged on described needle handle, and it is relative with movable block fixing that described driving member stretches into one end of needle handle;
Drive link, two ends are separately positioned on trigger and movable block, in the time that trigger moves, drive movable block to move.
5. radio frequency array pin as claimed in claim 4, is characterized in that, described controlling organization also comprises with described movable block and coordinating, the limited block of moving-limiting piece stroke; Movable block, between outer needle tubing and limited block, has an adjustment hole and some locating slots on described needle handle, described limited block comprises:
Moving part, is slidably arranged on needle handle;
Press section, upper end passes described adjustment hole, and lower end has the projection coordinating with described locating slot;
The elastic joint part of L-type, two ends are fixed with described moving part and press section respectively.
6. radio frequency array pin as claimed in claim 4, is characterized in that, described movable block has a draw-in groove, and described controlling organization also comprises:
Fixed fastener, comprises and the relatively-stationary fixed part of needle handle, and for the dop portion of described draw-in groove engagement limits movable block motion and be connected described fixed part and the elastic portion of dop portion, described dop portion has arc groove;
Unlock piece, is fixed on trigger, and unlock piece has for coordinating with described arc groove, makes elastic portion distortion, and dop portion moves the projection departing from draw-in groove.
7. radio frequency array pin as claimed in claim 1, is characterized in that, has the press button for controlling ablation needle on described needle handle.
8. radio frequency array pin as claimed in claim 1, is characterized in that, described ablation needle is coated with titanium nitride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520886974.4U CN205234625U (en) | 2015-11-09 | 2015-11-09 | Radio frequency array needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520886974.4U CN205234625U (en) | 2015-11-09 | 2015-11-09 | Radio frequency array needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205234625U true CN205234625U (en) | 2016-05-18 |
Family
ID=55933714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520886974.4U Active CN205234625U (en) | 2015-11-09 | 2015-11-09 | Radio frequency array needle |
Country Status (1)
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|---|---|
| CN (1) | CN205234625U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110051430A (en) * | 2019-05-27 | 2019-07-26 | 海南省妇幼保健院 | A kind of microwave melt needle with water circulation |
| CN114146253A (en) * | 2020-09-08 | 2022-03-08 | 上海移宇科技股份有限公司 | Infusion needle structure of medicine infusion device |
-
2015
- 2015-11-09 CN CN201520886974.4U patent/CN205234625U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110051430A (en) * | 2019-05-27 | 2019-07-26 | 海南省妇幼保健院 | A kind of microwave melt needle with water circulation |
| CN114146253A (en) * | 2020-09-08 | 2022-03-08 | 上海移宇科技股份有限公司 | Infusion needle structure of medicine infusion device |
| CN114146253B (en) * | 2020-09-08 | 2024-01-09 | 上海移宇科技股份有限公司 | Infusion needle structure of medicine infusion device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |