CN101045007A - Double-hook type device for taking stone out of cavity - Google Patents
Double-hook type device for taking stone out of cavity Download PDFInfo
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- CN101045007A CN101045007A CN 200610025402 CN200610025402A CN101045007A CN 101045007 A CN101045007 A CN 101045007A CN 200610025402 CN200610025402 CN 200610025402 CN 200610025402 A CN200610025402 A CN 200610025402A CN 101045007 A CN101045007 A CN 101045007A
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- steel wire
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Abstract
A dual-hook intracavity calculus taking-out device is composed of a handle, a tube with one end connected to said handle, two steel wires in said tube and with respective hooks on their exposed ends, a jointer able to be pushed back and forth in said handle and connected with said steel wires and spring in handle, and a control rod on said jointer. It has high efficiency and safety.
Description
Technical field
The invention belongs to medical instruments field, particularly a kind of a kind of double-hook type device for taking stone out of cavity that is used for the Urology Surgery intracavity operation.
Background technology
Existing urology department device for taking stone out of cavity tool has two kinds: lithotomy forceps and calculus catching net-like means.The front end working position of lithotomy forceps is made up of two joints of cultrating, and the near-end joint must be stretched out sheath fully and just can be opened outward, relies on the folding of distal joint to vise calculus, get stone in (shown in figure five).Its major defect is unfavorable for when getting stone observing for (1) clamp peristome and separated by a distance can the opening of object lens palpus; (2) pincers end opening portion lacks flexibility, and fractures easily when exerting oneself clamp; (3) generally be used to clamp and get the calculus about less than 5mm of diameter behind the rubble, big slightly calculus is difficult to the pincers jail or takes out.The structure of calculus catching net-like means is the open twine basket of olive shape automatically by the top and realizes overlapping stone, and basket opens the back and to calculus extruding or spinning calculus is inserted in the basket, and then gets stone (shown in figure six).The shortcoming of calculus catching net-like means needs certain space for (1) when calculus catching net-like means opens, bigger calculus is difficult for being inserted in; (2) cover stone process often must be carried out repeatedly; (3) run into big resistance when getting the stone process, must withdraw from calculus catching net-like means when avoiding damaging ureter, have bigger operation easier.(4) the calculus catching net-like means twine is very thin, and easy fracture damages.And cost an arm and a leg.
Summary of the invention
The objective of the invention is the defective that exists at above-mentioned two kinds of urology department device for taking stone out of cavity tools of the prior art, and design a kind of observation simple to operate, easy, security performance good, can take out a kind of urology department double-hook type device for taking stone out of cavity of diameter 10mm or big slightly calculus.
A kind of double-hook type device for taking stone out of cavity of the present invention mainly comprises handle 7, steel wire 2 and steel wire channel 3; It is characterized in that two bar steel wires 2 place in the steel wire channel 3, the front end that exposes the steel wire 2 outside two steel wire channel 3 one ends is made as arc shaped hook 1, the other end of steel wire channel 3 is connecting handle 7, in handle 7, be provided with the adapter 6 that promotes before and after the energy, one end of adapter 6 with place that two steel wires 2 in steel wire channel 3 handles are connected, the other end is connected with spring 5 on withstanding on the interior bonnet of handle, the top of adapter 6 is connected with a control stick 4, control stick 4 passes handle 7, and handle 7 is provided with the groove 8 that a confession promotes back and forth in control stick 4 front and back.
The present invention compared with prior art has following advantage: (1) is improved and to be got stone efficient: after diameter 10mm or big slightly calculus are hooked, by passive expansion ureter and the urethra of washing by water, reach complete target of getting stone.(2) simplify the operation: this instrument tip arrives at the calculus side, and calculus is pressed to offside, after stretching out double hook and hooking calculus, and traction downwards.(3) easily observe: can adjust the distance of top and object lens with the visual field, keep getting a clear view.(4) have more safety: by regulating the length that double hook stretches out, to avoid injury of ureter.(5) improve ruggedness: double hook has certain elasticity, thereby reduces the possibility that apparatus damages in the operation.(6) distinctive feature: to ureter corner, the calculus that can not expose is fully used this apparatus and can be reached and better get the stone effect.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further details.
Fig. 1 is that the steel wire 2 of double-hook type device for taking stone out of cavity of the present invention stretches out the structural representation outside steel wire channel 3.
Fig. 2 is that steel wire 2 retractions of double-hook type device for taking stone out of cavity of the present invention place the structural representation in the steel wire channel 3 fully.
Fig. 3 is the generalized section along Figure 1A-A direction.
Fig. 4 is the generalized section along Figure 1B-B direction.
Fig. 5 is the structural representation of lithotomy forceps of the prior art.
Fig. 6 is the structural representation of calculus catching net-like means of the prior art.
1. arc shaped hooks, 2. steel wires, 3. steel wire channels, 4. control sticks, 5. springs, 6. adapters, 7. handles, 8. lids, 9. grooves, 10. angles among the figure
The specific embodiment
The steel wire 2 that is illustrated in figure 1 as double-hook type device for taking stone out of cavity of the present invention stretches out the structural representation outside steel wire channel 3 fully, and this state diagram is the common state of this double-hook type device for taking stone out of cavity.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of double-hook type device for taking stone out of cavity of the present invention mainly comprises handle 7, steel wire 2 and steel wire channel 3; It is characterized in that two bar steel wires 2 place in the steel wire channel 3, the front end that exposes the steel wire 2 outside two steel wire channel 3 one ends is made as arc shaped hook 1, the other end of steel wire channel 3 is connecting handle 7, in handle 7, be provided with the adapter 6 that promotes before and after the energy, one end of adapter 6 with place that two steel wires 2 in steel wire channel 3 handles are connected, the other end is connected with spring 5 on withstanding on the interior bonnet of handle, the top of adapter 6 is connected with a control stick 4, control stick 4 passes handle 7, and handle 7 is provided with the groove 8 that a confession promotes back and forth in control stick 4 front and back.
Described a kind of double-hook type device for taking stone out of cavity is characterized in that the arc double hook 1 two planar angles 10 that form are about 30 ° of 15 ° of ∽, and when stretching out fully, the length that exposes arc shaped hook 1 is about 10 ∽ 15mm.
Described a kind of double-hook type device for taking stone out of cavity is characterized in that steel wire 2 can be designed to three steel wires, and corresponding arc shaped hook 1 also is three hook-shaped attitudes, helps in the PCN operation in the renal pelvis microlith and gets stone.
Described a kind of double-hook type device for taking stone out of cavity, the end that it is characterized in that handle 7 be with the sealing of spiral cover 8 formulas, and two parts are separable to be torn open imperially, is beneficial to maintenance, replacing.
Described a kind of double-hook type device for taking stone out of cavity is characterized in that steel wire 2 materials will possess certain elasticity and transmutability, and radian has certain elasticity when stretching out, and can be straightened during retraction places in the passage of steel wire channel.
Described a kind of double-hook type device for taking stone out of cavity is characterized in that steel wire 2 in the slightly overstriking of connecting portion front end, helps the steel wire propelling and stretches out.
The operational approach of double-hook type device for taking stone out of cavity of the present invention is as follows: before preparing to get stone, at first with control stick 4 post-tensionings, the front end arc shaped hook 1 of steel wire 2 is straightened and is retracted in the logical first pipe 3 of steel wire (as shown in Figure 2), then this dislodger is inserted the service aisle of ureteroscope, in dislodger front end inclined-plane arrives ureter during the calculus side, calculus is pressed to offside, and will push away before the control stick 4 this moment, and the arc double hook 1 of steel wire 2 stretches out and hooks calculus, traction downwards, takes out calculus.
Claims (5)
1, a kind of double-hook type device for taking stone out of cavity mainly comprises handle 7, steel wire 2 and steel wire channel 3; It is characterized in that two bar steel wires 2 place in the steel wire channel 3, the front end that exposes the steel wire 2 outside two steel wire channel 3 one ends is made as arc shaped hook 1, the other end of steel wire channel 3 is connecting handle 7, in handle 7, be provided with the adapter 6 that promotes before and after the energy, one end of adapter 6 with place that two steel wires 2 in steel wire channel 3 handles are connected, the other end is connected with spring 5 on withstanding on the interior bonnet of handle, the top of adapter 6 is connected with a control stick 4, control stick 4 passes handle 7, and handle 7 is provided with the groove 8 that a confession promotes back and forth in control stick 4 front and back.
2, according to the described a kind of double-hook type device for taking stone out of cavity of claim 1, it is characterized in that arc double hook 1 to form two planar angles 10 be 30 ° of 15 ° of ∽, when stretching out fully, the length that exposes arc shaped hook 1 is 10 ∽ 15mm.
3, according to the described a kind of double-hook type device for taking stone out of cavity of claim 2, it is characterized in that steel wire 2 can be designed to three steel wires, corresponding arc shaped hook 1 also is three hook-shaped attitudes.
4,, it is characterized in that steel wire 2 materials will possess certain elasticity and transmutability according to claim 1,2 described a kind of double-hook type device for taking stone out of cavity.
5,, it is characterized in that steel wire 2 materials will possess certain elasticity and transmutability according to the described a kind of double-hook type device for taking stone out of cavity of claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610025402 CN101045007A (en) | 2006-03-30 | 2006-03-30 | Double-hook type device for taking stone out of cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610025402 CN101045007A (en) | 2006-03-30 | 2006-03-30 | Double-hook type device for taking stone out of cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101045007A true CN101045007A (en) | 2007-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610025402 Pending CN101045007A (en) | 2006-03-30 | 2006-03-30 | Double-hook type device for taking stone out of cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101045007A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354329A (en) * | 2018-04-11 | 2019-10-22 | 孔祥营 | A kind of anorectum department Wound cleansing apparatus |
-
2006
- 2006-03-30 CN CN 200610025402 patent/CN101045007A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354329A (en) * | 2018-04-11 | 2019-10-22 | 孔祥营 | A kind of anorectum department Wound cleansing apparatus |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |