CN202505447U - Novel paracentesis knife provided with catheter in knife body - Google Patents
Novel paracentesis knife provided with catheter in knife body Download PDFInfo
- Publication number
- CN202505447U CN202505447U CN2012200274258U CN201220027425U CN202505447U CN 202505447 U CN202505447 U CN 202505447U CN 2012200274258 U CN2012200274258 U CN 2012200274258U CN 201220027425 U CN201220027425 U CN 201220027425U CN 202505447 U CN202505447 U CN 202505447U
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- CN
- China
- Prior art keywords
- knife
- catheter
- cutter hub
- paracentesis
- surgical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a novel paracentesis knife provided with a catheter in a knife body, which belongs to the technical field of medical appliances. The novel paracentesis knife is characterized in that a catheter (2) is arranged in a knife body (1); a knife point (3) is provided with a catheter opening (4); the back part of the catheter opening (4) is provided with a suture accommodating groove (5); and the tail part of the knife body (1) is provided with an injector nipple connecting casing (6). According to the novel paracentesis knife, suture or other thread substances can be carried and a certain type of fluid can be sucked and injected during penetrating or retreating from tissues along an original path, so that the problem of single function of the conventional paracentesis knife is solved, great convenience can be particularly brought to operation of surgery doctors during completion of certain specific tasks, surgical injuries and surgical risk are lowered, surgical efficiency is increased, and surgical effect is improved.
Description
Technical field
This utility model belongs to technical field of medical instruments; Relate to and a kind ofly can easily pass various more tough and tensile tissues; Like cornea, sclera, ligament, tendon, cartilage even part os osseum, can be with suture or other threads and certain fluidic novel stab knife of suction injection again simultaneously.
Background technology
Mostly the stab knife that is widely used at present surgical operation, especially eye surgery clinically is lance type cutter (V-Lance Knife); Though it has sharpness; But only possess the puncture function, inconvenience is accomplished such as being with operations such as suture or other threads and certain fluid of suction injection simultaneously.
Summary of the invention
For fully receiving existing stab knife to have the advantage of sharpness; Can overcome again existing stab knife function singleness, inconvenience accomplish such as with the problem of suture or operations such as other threads and certain fluid of suction injection simultaneously, we on the basis of existing stab knife, design establish in the cutter hub conduit, point of a knife be provided with catheter opening be characteristic novel stab knife.Novel stab knife comprises establishes conduit (2), point of a knife (3), nose part catheter opening (4), appearance wire casing (5), cutter hub afterbody silica gel tube connection nipple or syringe nipple joint sleeve (6), handle or syringe (7) in cutter hub (1), the cutter hub.Cutter hub with cylindrical be good, also can be made into ellipse post or other shapes.Point of a knife is good with lance shape or spade, also can be made into sword shape, bayonet-type or other is sharp streamlined.Catheter opening is good with half elliptic or obtuse triangle, also can be made into semicircle or parabola shaped etc.Holding wire casing is good with the obtuse angle rectangle, also can be made into semicircle, parabola shaped, obtuse triangle, obtuse angle square etc.; Hold wire casing and be preferably disposed on the cutter hub two sides, also can only simultaneously establish groove at cutter hub.It is characterized in that: establish in the cutter hub (1) conduit (2), point of a knife (3) be provided with catheter opening (4), catheter opening (4) rear portion be provided with hold wire casing (5), cutter hub (1) afterbody is provided with silica gel tube and connects nipple or syringe nipple joint sleeve (6).The beneficial effect of this utility model is to pass or former road was with suture or other threads and certain fluid of suction injection when withdrawing from an organization; Solve the problem of traditional stab knife function singleness, especially when accomplishing some particular task, can greatly make things convenient for operation, minimizing surgical injury and operation risk, raising operation efficient and the surgical effect of operative doctor.
Description of drawings
Fig. 1 is this utility model I type---the cutter hub afterbody is provided with syringe nipple adapter sleeve cast structural representation
Fig. 2 is this utility model II type---the cutter hub afterbody is provided with silica gel tube and connects nipple type structural representation
(1) cutter hub among the figure is established conduit in (2) cutter hub, (3) point of a knife, and (4) nose part catheter opening, (5) hold wire casing, and (6) cutter hub afterbody syringe nipple joint sleeve or silica gel tube connect nipple, (7) handle.
The specific embodiment:
Do further explain below in conjunction with accompanying drawing with regard to ophthalmology novel (lance shape) stab knife specific embodiments: will have 23G ophthalmology angle/sclera lance type stab knife (V-Lance Knife) cutter hub (1) now and be designed to hollow---be to establish conduit (2), catheter diameter 0.2mm in the central authorities.Apart from point of a knife (3) peak 2.0mm
±It is consistent with cutter hub to do major axis, semi-major axis (sagitta) 0.20mm
±, the half elliptic catheter opening (4) that minor axis 0.16mm two sides is penetrating.Catheter opening (4) rear portion is provided with wide 0.16mm, dark 0.07mm, the appearance wire casing (5) of long 5mm～8mm, catheter opening and the corner passivation of appearance wire casing.The 27mm from the top back of point of a knife (3)
±The place is perpendicular to the bending of point of a knife plane, knuckle 25o
±(can take the circumstances into consideration to adjust knuckle or take the circumstances into consideration bending temporarily in 0o～45o scope during use), 7mm behind the knuckle ± locate to be provided with syringe nipple joint sleeve (6); Or with knuckle be extended to 70o ±, 6mm behind knuckle ± locate to be provided with silica gel tube connects nipple (6), and is provided with separately at the knuckle place and connects handle (7).
Claims (1)
1. establish the novel stab knife of conduit in the cutter hub; Comprise establish conduit (2), point of a knife (3), nose part catheter opening (4) in cutter hub (1), the cutter hub, hold wire casing (5), cutter hub afterbody silica gel tube connects nipple or syringe nipple joint sleeve (6), handle or syringe (7), it is characterized in that: establish in the cutter hub (1) conduit (2), point of a knife (3) be provided with catheter opening (4), catheter opening (4) rear portion be provided with hold wire casing (5), cutter hub (1) afterbody is provided with silica gel tube and connects nipple or syringe nipple joint sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200274258U CN202505447U (en) | 2012-01-21 | 2012-01-21 | Novel paracentesis knife provided with catheter in knife body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200274258U CN202505447U (en) | 2012-01-21 | 2012-01-21 | Novel paracentesis knife provided with catheter in knife body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202505447U true CN202505447U (en) | 2012-10-31 |
Family
ID=47057962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200274258U Expired - Fee Related CN202505447U (en) | 2012-01-21 | 2012-01-21 | Novel paracentesis knife provided with catheter in knife body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202505447U (en) |
-
2012
- 2012-01-21 CN CN2012200274258U patent/CN202505447U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20140121 |