CN100522075C

CN100522075C - Arc type nail for surgical binding instrument

Info

Publication number: CN100522075C
Application number: CNB2006100980185A
Authority: CN
Inventors: 陈望东; 汤川武仁; 范心宇; 孙敏; 周婧
Original assignee: Suzhou Tianchen International Medical Technology Co Ltd
Current assignee: Suzhou Tianchen International Medical Technology Co Ltd
Priority date: 2006-11-27
Filing date: 2006-11-27
Publication date: 2009-08-05
Anticipated expiration: 2026-11-27
Also published as: CN101190139A

Abstract

The invention provides an arc-shaped nail which is used for a surgical binding instrument, including a nail crown and a nail foot, at least one part of the nail crown part or the nail foot part takes a shape of arc; the plane which is perpendicular to the direction of the nail foot is a reference plane, the included angle of the plane on the nail crown where the arc shape is arranged and the reference plane is 0 degree to 180 degrees; the radian of the arc shape on the nail crown is one sixth of Pi to Pi; and two or more arc shapes on the nail crown are connected to form a curve. When in specific surgical application, the arc-shaped nail is stored in a nail slot of a nail chamber of the binding instrument, when the tissues to be inoculated are in place, the firing is implemented by a firing mechanism of the binding instrument, the arc-shaped nails which are pre-stored in various nail slots of the interior of the nail chamber are divergent to the outside along the axial direction, so as to be matched with a nail forming slot to carry out the anastomosis of two tissues. The diameter of an anastomosis ring which is formed by the arc-shaped nail of the invention is bigger than that of the anastomosis ring which is formed by the linear nail, which is not only easy to remove the apparatus after the operation, but is more in line with the physiological shapes of tissues; furthermore, the invention can be conductive to postoperative healing and can improve surgical effect greatly.

Description

The cuved nail that surgical binding instrument uses

Technical field

The present invention relates to a kind of operating suturing nail that is used for, relate in particular to the cuved nail that a kind of surgical binding instrument uses, belong to technical field of medical instruments.

Background technology

When being carried out the surgical stapling operation, physiological tissues such as esophagus, stomach, intestinal often use a kind of medical apparatus and instruments---surgical binding instrument, its methods of anastomosis has end to end anastomosis, end-to-side anastomosis, side to side anastomosis etc., the time that the birth of this quasi-instrument makes the surgeon lie prostrate on operating-table significantly reduces, improve doctor's work efficiency, also further guaranteed the success rate of operation.

Surgical binding instrument adopts the principle of stapler, binding into the nail bin in the nail-head component, the tissue that needs are coincide is placed between nail-anvil assembly and the nail-head component, distance between adjustment nail-anvil assembly and the nail-head component is to suitable distance, pull the trigger handle assembly then, nail is pushed out nail-head component, penetrates tissue to be coincide, nail brake forming under the effect of nail anvil will be organized firmly and order together.Ideal effect will just can be reached by closely cooperating of each parts, and wherein Ding effect is very crucial.

The shape of nail, the length of nail, the quantity of nail, the material of nail, the factors such as arrangement of nail all can have influence on final surgical effect.The nail great majority that now use are followed closely as straight line, such as present widespread usage tubular type binding instrument, some little straight line ailings are become a circle, form an approximate circle, in order to prevent the organising content thing from the gap seepage between two nails, two circles that nail will be staggered usually constitute an anastomosis ring.Such arrangement can guarantee substantially that the organising content thing is non-leakage, but such structure is not perfect structure, at first in order to adapt to the physiology and appearance of tubular tissue, form the relatively anastomosis ring of approximate circle, the length of nail is very little, and this just needs to arrange a large amount of little straight lines and follows closely the anastomosis ring that forms an approximate circle, each little straight line nail all wants corresponding the setting independently to follow closely hole and nail forming tank, so not only Jia Gong difficulty is bigger, also is unfavorable for saving material, and cost is higher.The operation price of Binding Instrument can't be widely accepted for common patient now, should use the patient of Binding Instrument not have ability to use, and has restricted the popularization and the development of Binding Instrument.

In addition, adopt after the existing suturing nail bookbinding, circular nail anvil will withdraw from also from the anastomosis ring of sub-circular and be not easy, be easy to when withdrawing from anastomosis ring is torn or the partly molding damage of nail,, will bleed profusely in case damaged anastomosis ring, cause fistula of operative incision, the difficulty that the doctor remedies operation increases greatly, causes operative failure, brings life danger to patient when serious.

Summary of the invention

The objective of the invention is to overcome the defective of prior art, the cuved nail that provides a kind of surgical binding instrument to use makes its advantage that has prior art concurrently, improves surgical effect better.

Purpose of the present invention is achieved through the following technical solutions:

The cuved nail that surgical binding instrument uses comprises nail hat and nail foot, it is characterized in that: described nail bizet position or nail foot position have the curved shape in a place at least.

Further, the cuved nail that above-mentioned surgical binding instrument uses, the plane perpendicular with nail foot direction is reference plane, the plane at arc place labeled by nail and the angle of reference plane is 0 °～180 °; It is π/6～π that described nail is labeled arcual radian.

Further, the cuved nail that above-mentioned surgical binding instrument uses, described nail have labeled that arc is connected to form shaped form more than two sections or two sections.

Again further, the cuved nail that above-mentioned surgical binding instrument uses has on the described nail foot that arc is connected to form waveform or spiral type more than two sections or two sections.

The invention provides the cuved nail that a kind of surgical binding instrument uses, compare with various suturing nails in the prior art, the length of each nail of increase that not only can be suitable, make with follow closely cooperate nail bin, pushing slice of nail, the processing cost of nail anvil and nail itself reduces, can also reduce the quantity of nail, economical with materials, reduce the price of Binding Instrument, increase utilization rate, diameter that the more important thing is the anastomosis ring that cuved nail forms is bigger than the diameter of the anastomosis ring of straight line nail formation, because what straight line nail restriction nail anvil withdrawed from is the mid point of each straight line nail, rather than the two-end-point of straight line nail, and cuved nail restriction nail anvil is the two-end-point of nail, and the anastomosis ring center is greater than the distance of center to straight line nail mid point to the distance of cuved nail two-end-point, so the diameter of the anastomosis ring that cuved nail forms is bigger than the diameter of the anastomosis ring of straight line nail formation; Make nail anvil can easily withdraw from anastomosis ring, and can not damage anastomosis ring; Because the anastomosis ring that cuved nail forms more meets the physiology and appearance of human body,, improved surgical effect greatly, for the doctor has alleviated pressure, for patient has brought Gospel so relatively help organizing the postoperative healing.

Description of drawings

Below in conjunction with accompanying drawing technical solution of the present invention is described further:

Fig. 1～Fig. 9: the cuved nail of nine kinds of forms of the present invention;

Figure 10～Figure 13: Binding Instrument is implemented the operation process sketch map of anastomosis operation;

Figure 14: effect sketch map after the present invention performs the operation;

Figure 15: the distribution sketch map behind the background technology linear type tack operation;

Figure 16 and Figure 17: the postoperative distribution sketch map of cuved nail of the present invention.

The implication of Reference numeral is: 1 cuved nail, 101 nail feet, 102 nail hats, 103 arcs, 2a, 2b tissue, 3 cutting knifes, 4 cutter anvils, 5 nail-head components, 6 nail-anvil assemblies, 7 anastomosis ring.

The specific embodiment

As the cuved nail of nine kinds of forms of Fig. 1～Fig. 9, comprise nail hat 102 and nail foot 101, nail bizet position or nail foot position have a place curved 103 at least; The plane perpendicular with nail foot direction is reference plane, and the plane at arc 103 places labeled by nail and the angle of reference plane is 0 °～180 °; The radian that nail is labeled arc 103 is π/6～π; Nail is labeled can that arc is connected to form irregular curve shape more than two sections or two sections; Nail also can have that arc is connected to form waveform or spiral type more than two sections or two sections on the foot; The material of cuved nail adopts rustless steel or titanium or tantalum or Biodegradable material.

It should be noted that the cuved nail of Fig. 1～eight kinds of forms shown in Figure 8 is applicable to the Binding Instrument that axially coincide, and cuved nail shown in Figure 9 is applicable to the inwardly identical Binding Instrument in footpath.

Fig. 1 of the present invention～cuved nail 1 shown in Figure 8 is deposited in the nail bin hole of nail-head component nail bin, arrange in the form of a ring in the nail bin hole, the passage in each nail bin hole is axial emitting shape and stretches out, thereby being parallel to 2 axial emission rings of formation on the direction of central shaft, staggers and arranges in the nail bin hole site of adjacent transmission ring.

Cuved nail shown in Figure 9 is when being applied to directly inwardly coincide Binding Instrument, cuved nail is deposited in the nail groove too, the nail groove is arranged in the form of a ring, and the passage of each nail groove is the radial emission shape and stretches out, thereby forming 2 radial emission rings on perpendicular to the direction of central shaft, also staggers and arranges in the nail bin hole site of adjacent transmission ring.

Figure 10～Figure 13 has illustrated to adopt cuved nail of the present invention to be applied in the process that Binding Instrument undergos surgery, and surgical effect as shown in figure 14.The detailed process of surgical stapling is:

(1) nail-anvil assembly 6 and nail-head component 5 are in separated position, and the tissue that needs are coincide is placed between nail-anvil assembly 6 and the nail-head component 5, and Binding Instrument is complied with the proper flow direction of organising content thing, and the upstream tissue as 2a, is played pockets in nail-anvil assembly 6 peripheries; The downstream tissue is wrapped in nail-head component 5 peripheries as 2b, can play pocket and also can not play pocket, decides according to the type of surgical stapling; See Figure 10;

(2) governor motion by Binding Instrument is adjusted the distance suitable distance extremely between nail-anvil assembly 6 and the nail-head component 5, comes

compressed tissue

2a, 2b, makes to be coincide to organize 2a, 2b in place; The cuved nail in the middle of each nail bin hole is left in firing lock percussion by Binding Instrument in advance in, cuved nail is outwards dispersed vertically, cooperate organizing 2a and 2b to coincide with nail forming tank on the nail-anvil assembly, nail brake forming under the effect of nail anvil will be organized and order firmly together; Simultaneously, cutting knife 3 enters cutter anvil 4 inside until part, thereby excess tissue is excised to cutter anvil 4 direction fast moving, sees Figure 11;

(3) governor motion by Binding Instrument body position makes nail-anvil assembly 6 and nail-head component 5 separately, sees Figure 12;

(4) anastomosis procedures finishes, removal equipment.Cut unnecessary organizing also together taken out in company with apparatus, sees Figure 13.

Distribution sketch map, Figure 16 and the postoperative distribution sketch map of cuved nail of the present invention shown in Figure 17 behind the background technology linear type tack operation shown in Figure 15, can obviously show, the diameter of the anastomosis ring that cuved nail forms is bigger than the diameter of the anastomosis ring that the straight line nail forms, because what straight line nail restriction nail anvil withdrawed from is the mid point of each straight line nail, rather than the two-end-point of straight line nail; What cuved nail restriction nail anvil withdrawed from is the two-end-point of following closely, and the anastomosis ring center is greater than the distance of anastomosis ring center to straight line nail mid point to the distance of cuved nail two-end-point, so the diameter of the anastomosis ring that cuved nail forms is bigger than the diameter of the anastomosis ring of straight line nail formation; After bookbinding finishes,, make nail anvil be easy to withdraw from, and can not damage anastomosis ring,, organize the postoperative healing, improved surgical effect greatly so relatively be beneficial to because the anastomosis ring that cuved nail forms is more suitable for the physiology and appearance of tissue because the diameter of anastomosis ring increases.

Certainly, more than only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within the rights protection scope of the present invention.

Claims

1. the cuved nail that uses of surgical binding instrument, comprise nail hat and nail foot, it is characterized in that: described nail bizet position or nail foot position have the curved shape in a place at least, the plane perpendicular with nail foot direction is reference plane, and the plane at arc place labeled by nail and the angle of reference plane is 0 ° or 180 °.2. the cuved nail that surgical binding instrument according to claim 1 uses, it is characterized in that: it is π/6～π that described nail is labeled arcual radian.

3. the cuved nail that uses according to claim 1 or 2 or 3 described surgical binding instruments is characterized in that: described nail has labeled that arc is connected to form shaped form more than two sections or two sections.