CN101099687A - Disposable anastomat with automatic fuse device - Google Patents

Abstract

The present invention relates to a disposable anastomat with automatic safety device, belonging to the field of medical instruments. It includes the following several portions: front conical top cap; anastomotic port, said anostomotic port and said front conical top cap can be formed into anastomosing gap; rear portion of port is vessel cover, the vessel cover center is equipped with a connecting core; the place connected with said connecting core is equipped with a guide screw; movable handle, fixed handle and regulating nut positioned in its rear portion; the described rear movable handle is a automatic safety handle, it can be mounted on the fixed handle by means of pin, and said pin is connected with a reset spring. Said invention also provides the concrete application method of said disposable anastomat.

Description

Disposable anastomat with automatic safety

Technical field

The invention belongs to medical instruments field, specially refer to the disposable anastomat that uses in the medical surgery operation with automatic safety.

Background technology

In medical science applied surgical operation, anastomat as medical apparatus and instruments, a kind of medical apparatus and instruments is absolutely necessary, the interrelated data report, " high-quality anastomosis; be one of decision surgical operation key of success ", and anastomosis success or not, again with employed anastomat whether safety, safe closely-related the contact arranged.The employed tube type anastomat in present domestic and international market, its safety mostly are manual components, when the surgeon undergos surgery, carelessness are arranged slightly, for example, the part of coincideing at needs is when identical gap is not yet in place, in case when having opened by mistake the insurance of coinciding machine accidentally and carrying out anastomosis operation, will from apparatus, hit anastomosis staple when pressing flexible handle, cause operative failure, for malpractice so, people also try hard to improve and propose new scheme.For example; Chinese patent communique Granted publication in 2003 number has disclosed the patent content that is entitled as " anastomat automatic safety " for CN2549911Y; this patent is structurally reformed for the safety problem that solves anastomat; be provided with a protection piece; be installed on the flexible handle by pivot pin, be inserted on the fixed handle with fashionable dress.Learn after test,, feel that in use its structure is wordy though this structure is more progressive to some extent than traditional anastomat safety.Its safety block top is provided with groove, and the bottom is provided with two lower limbs, and the middle part also has convex shoulder, and still will lean on the doctor to stir just and can put in place with hands, uses a period of time, when size is worn and torn to some extent, just can't play safety effect smoothly.For this reason, the safety of whole anastomat still can not get ensureing.In order thoroughly to change the potential safety hazard that anastomat occurs, we through repeatedly experiment, study, grope, the proposition of innovation security performance secure, mechanism simply has the anastomat of automatic safety, and, identical with the necessity of a series of disposable medical instruments such as the disposable needle tubing that is adopted in recent years, disposable pollutant discharge tube, in order to increase strick precaution, to reduce disease intersection propagation infection, improve whole health level, be necessary anastomat is also manufactured disposable anastomat simple for structure, with low cost.

Summary of the invention

The technical issues that need to address of the present invention are, in prior art, anastomat does not often have safe safety, and is careless slightly, just may be when identical state still possess, and accident such as mistake be pressed handle, causing the failure that coincide, and operation is unsuccessful.In order to overcome these weak points, just a kind of new structural design need be proposed again, satisfy operating needs, purpose of the present invention is to provide a kind of disposable anastomat with automatic safety.Above-mentioned purpose of the present invention, realize by the following technical solutions, a kind of disposable anastomat with automatic safety, the taper top medicated cap that comprises front end, identical port with the identical gap of its formation, the port rear portion is a pipe box, the pipe box center is provided with connection-core, and want to connect the place with this connection-core and be screw mandrel, and the flexible handle that is positioned at the rear portion, fixed handle, adjusting nut, it is characterized in that, the flexible handle at described rear portion is the voluntary insurance handle, and it is installed on the fixed handle by pivot pin, this pivot pin is connected with back-moving spring, and this back-moving spring is connected in the front end of a pointer drag hook again; The compression spring that is enclosed within the screw mandrel periphery is pressing closer the bending end of pointer drag hook back segment, and the afterbody of screw mandrel is connected with the butterfly adjusting nut.

Described pointer drag hook, it is narrow before comprising, the wide two parts area in back, and the long-pending front portion of leptoprosopy is one hook-shaped, and there are a circular hole and bending in wide area rear end perpendicular to former wide face portion.

Described voluntary insurance handle, its underpart have two supporting legs that are connected as a single entity with handle, and its middle part is provided with pivot pin, and this voluntary insurance handle is connecting the position, hole of described fixed handle two sides by pivot pin.

When not in place,, this handle can not be pressed down in identical gap, just can not miss that also anastomosis staple is hit because the supporting leg on the voluntary insurance handle is withstood on the wide plane of pointer drag hook; And adjust to the state that can coincide in the gap, be that regulating block on the screw mandrel drives the pointer drag hook and moves backward, make its wide planar axial location throw off the voluntary insurance handle, it no longer is obstructed, thereby removed the voluntary insurance effect, handle can press down, with the anastomosis staple percussion has been reached the purpose of coincideing.

The pipe box at described identical port rear portion comprises the plastic pipe sleeve section of forward part, the metal pipe box section at middle part and comprise the butterfly adjusting nut in interior rear plastic pipe box section.

Beneficial effect of the present invention is, this disposable anastomat with automatic safety is simple in structure, safe and reliable, need not the manual safety device, and cheap, is fit to disposable use.

Description of drawings:

Fig. 1 is the disposable anastomat population structure sketch map with automatic safety

Fig. 2 locates each parts annexation sketch map for axle center in the described anastomat

Fig. 3 is a pointer drag hook shape sketch map in the described anastomat

Fig. 4 is anastomosis staple and the identical part annexation generalized section of quilt

Fig. 5 is anastomat automatic safety sketch map under non-identical state

Fig. 6 is anastomat automatic safety sketch map under the state of coincideing

The specific embodiment

With reference to Fig. 1, represent the disposable anastomat general illustration with automatic safety of the present invention, be positioned at the taper top medicated cap 1 of anastomat front end among the figure, it be with human body on the end that contacted by the anastomotic part branch, any surface finish is level and smooth, place the identical port 2 in the identical gap of its rear portion and its formation, the distance of it and taper top medicated cap relies on the butterfly adjusting nut 14 that is located at the anastomat tail end to control, identical port is connecting the pipe box 4 of stapler main body part, pipe box inside center place is provided with connection-core 3, connection-core is connecting a rhizoid bar 7 with extending, peripheral pipe box part, by the pipe box 4 of metal material, extend to the pipe box 5 of plastic material, the outside of pipe box 5 tilts is connecting voluntary insurance handle 11, this handle downside is provided with the supporting leg that is connected as a single entity with it, the handle middle part is provided with pivot pin 10, makes voluntary insurance handle 11 be connected to the fixed handle 12 at pipe box rear portion by pivot pin, and these fixed handle two sides have the position, hole.Pivot pin 10 is connected with back-moving spring 6, and this back-moving spring is connected the front end of a pointer drag hook 13 again.Be sleeved on the compression spring 9 of screw mandrel 7 peripheries, tightly lean the rear end of pointer drag hook 13, the rear end of this drag hook is pressed over the back of the regulating block 8 that places on the screw mandrel 7 into a bent shape.Anastomat when work, non-when identical because the effect of back-moving spring and compression spring the voluntary insurance handle is lifted, and the compression spring withstands the pointer drag hook, make the voluntary insurance handle withstand on the wide one side of pointer drag hook all the time; And under the anastomosis operation state, regulating block on the screw mandrel drives the pointer drag hook, make thereafter and move, the voluntary insurance handle is then thrown off the wide one side of pointer drag hook (being positioned at narrow one side top), thereby safety handle is opened automatically, this device no longer needs manually to open or close, and can in use reach the purpose of safety, insurance, and doctors no longer worry the unfavorable anastomosis staple of pulling the trigger out of false touch handle.With reference to Fig. 2, represent that described anastomat axle center locates each parts annexation sketch map, screw mandrel 7 is subjected to the control of the butterfly adjusting nut of anastomat tail end among the figure, when being rotated counterclockwise adjusting nut, compression spring on the screw mandrel withstands the reach of pointer drag hook, and the clearance distance between taper top medicated cap 1 and the identical port 2 is increased; When turning clockwise adjusting nut, the regulating block on the screw mandrel moves after driving the pointer drag hook, makes the wide plane of pointer drag hook throw off the voluntary insurance handle, removes the voluntary insurance effect.Represent the structural representation of pointer drag hook parts 13 with reference to Fig. 3, the front portion is a narrow plane, and there is crotch at the front end place, and the rear portion is wide plane, and rear end has bending part, and has circular hole.With reference to Fig. 4, anastomosis staple and the identical part annexation generalized section of quilt in the expression operation, the anastomosis staple that 15 representatives are hit among the figure, a1 and a2 are represented respectively by two parts of coincideing, and little figure representative is driven into the part of anastomosis staple amplification.The safety of representing anastomat respectively with reference to Fig. 5 and Fig. 6 are under non-identical state and identical state, and each component locations concerns sketch map, and the expression gap that coincide increases among Fig. 5, and voluntary insurance handle 11 is obstructed at broadside, and handle can't press down; The identical gap of expression dwindles among Fig. 6, makes voluntary insurance handle 11 be in top, narrow limit, and handle can press down, and hits anastomosis staple.

Claims (4)

1, a kind of disposable anastomat with automatic safety, the taper item medicated cap that comprises front end, identical port with the identical gap of its formation, the port rear portion is a pipe box, the pipe box center is provided with connection-core, want to connect the place with this connection-core and be screw mandrel, and the flexible handle, fixed handle, the adjusting nut that are positioned at the rear portion, it is characterized in that, the flexible handle at described rear portion is the voluntary insurance handle, and it is installed on the fixed handle by pivot pin, this pivot pin is connected with back-moving spring, and this back-moving spring is connected in the front end of a pointer drag hook again; The compression spring that is enclosed within the screw mandrel periphery is pressing closer the bending end of pointer drag hook back segment, and the afterbody of screw mandrel is connected with the butterfly adjusting nut.

2, the disposable anastomat with automatic safety according to claim 1, it is characterized in that described pointer drag hook, narrow before it comprises, the wide two parts area in back, the long-pending front portion of leptoprosopy is one hook-shaped, and there are a circular hole and bending in wide area rear end perpendicular to former wide face portion.

3, the disposable anastomat with automatic safety according to claim 1, it is characterized in that, described voluntary insurance handle, there are two supporting legs that are connected as a single entity with handle its underpart, its middle part is provided with pivot pin, and this voluntary insurance handle is connecting the position, hole of described fixed handle two sides by pivot pin.

4, the disposable anastomat with automatic safety according to claim 1, it is characterized in that, the pipe box at described identical port rear portion comprises the plastic pipe sleeve section of forward part, the metal pipe box section at middle part and comprise the butterfly adjusting nut in interior rear plastic pipe box section.

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