RU20014U1 - NEEDLE HOLDER FOR FABRIC SEWING - Google Patents

Abstract

1. A device for suturing tissues with a needle with a thread in the form of a needle holder with sliding jaws, a movable needle and with variable locking tabs for the needle on the branches, characterized in that the needle holder on the working part of the tool has two spaced devices for fixed connection and independent movement of the ends of one thread, made on different and independently movable components or parts of the needle holder, one of which is made on a movable needle and in the form of a connection fixing the end of the thread is located in tion separate sliding grip, where the needle is represented by a pointed sterzhnem.2. The device according to claim 1, characterized in that the needle holder is made with the reciprocating movement of the working jaws having extended and spaced from the support leg of the distal jaw at an angle from 60 to 180 transverse protrusions forming spaced pairs of working jaws and oblique grippers, in the projection of which are located , in conjunction with two independently movable needles, the ends of one thread in the form of a mobile double-locking device. 3. The device according to claim 1, characterized in that the needle holder is made with axially extending lateral jaws and a support leg in the form of an internal bilateral clamping jaw, forming separate sliding grips, in the projection of which two independently movable movable needles are fixed, fixed to the ends of one thread.

Description

A 61 B 17/06 Needle holder for suturing tissues with a needle and thread

A useful model for medical equipment, in particular for surgical tools for suturing and suturing tissues with a needle on a thread.

Known needle holder, the working jaws of which are equipped with clamps for alternating inclusion for fixing the movable needle with thread (1). The disadvantage of this device is the lack of fixation of the second end of the thread, which limits the choice of seams and complicates the formation and tightening of nodes.

The objective of the utility model is to create a more advanced needle holder equipped with a mobile device for double fixing an open loop of a single thread, which simplifies the operation of applying a manual seam, forming and tightening nodes.

The problem, in contrast to the prototype, is solved by the fact that the needle holder with sliding jaws, a movable needle between the jaws, with a device for alternately fixing the movable needle in the form of locking clamps on the jaws and with a switch on the drive, has two spaced thread locking devices on the distal working part for a fixed connection with the ends of one thread, made on different and independently movable components or parts of the needle holder, one of which is made on a movable projection of a separate azdvizhnogo needle gripping end of the locking thread compound. Moreover, the needle holder can be made in the embodiment

1. e, o. ". 3

.

devices with one mobile needle and two mobile needles

needles made in the projection of individual sliding grips. In the second case, the needle holder can be made with the reciprocating movement of the working jaws or with lateral working jaws sliding along the axis.

Figure 1 shows the needle holder with one movable needle and with a double thread locking device, front view. Figure 2 shows the working part of the needle holder with one movable needle and with a separate movable device for fixing the thread on the jaw, front view. In Fig. 3, a variant of a mobile device for double thread fixing, a front view, is separately shown. Figure 4 presents the working part of the device with a reciprocating movement of the branches and with two movable needles, General view. Figure 5 presents the working part of the needle holder with axially extending lateral branches and with two movable needles, front view. 6,7,8 shows the principle of operation of the device with one mobile needle and the mechanism for tightening nodes, General view. In Fig.9,10 shows the principle of operation of the needle holder with two mobile needles, a General view.

The device (Figs. 1, 2, 4, 5) is a needle holder 1 with sliding branches 2 and 3, with one or two needles 4 and 5, mobile in the projection of the branch, and with one thread 6, the ends of which 7 are fixed on moving parts or elements needle holder 1, equipped with locking sockets 8 for moving the needles, an alternating needle fixing device in the form of retaining clips 9 on the branches,

the body 10 of which is brought to the drive 11. The device is implemented in various versions, the common feature of which is (Fig. H) a mobile device for double fixing 12 of one open loop of thread 6, the ends of which 7 are fixed in two spaced and movable points of the needle holder, which are a device for fixing the thread or the formation of one of the options for connecting with the thread, one of which 13 is made on a movable needle 4 to form a fixed or detachable connection with a thread 14, and the second 15 is made on the other independently about the movable part of the needle holder, for example (FIG. 2), on an additional movable device for fixing the thread 16 and is also intended to form a connection 14 fixed or detachable with the thread. In embodiments of the device (FIG. 4,5) with two independently movable movable needles 4 and 5, the second end of the thread is fixed to the movable part of the device, which is a second movable needle 5.

In the first embodiment (Fig. 1), the needle holder 1 is made with axially extending jaws 2 and 3 on one of which, in the fixing socket 8 of the jaw there is a mobile needle 4, which is connected to one end 7 of the thread 6 by one of the known variants of a rigidly fixed or detachable fixed connection 14, for which the needle is equipped with the corresponding locking thread, elements 13 in the form of, for example, the eyelet, channel, sliding grooves, etc. The best option is a rigid connection in the form of a pressed end 7 of the thread 6 into the blind channel 13 at the end of the needle. Mobile needle 4, with pre

the fixed one end 7 of the thread 6, is initially located on one of the branches 2 and 3 in the projection of the sliding groove or grip 17 formed by them, intended for gripping and fixing the tissue. In contrast to the analogue, this device has a second, fixing the other end of the thread, element 15 of the device 12, which is made on one of the independently movable parts of the needle holder, for example {Fig. 1) on a jaw 2 or 3 or a separate movable device for fixing the thread 16. Fixing thread 6 element 15, as well as the device for fixing the thread 13 on the needle 4 and 5, can be represented by a sliding eye, a channel, a clip, a sliding groove, etc., and can form various variants of known constant, fixed with the end part 7 of the thread 6 movable or removable x connections 14. Given the limited movement of branches 2 and 3 in this embodiment, the second device for fixing the thread 15 is better to perform (figure 2) on a separate movable device 16 for fixing the thread, which is a longitudinal elastic body moving along the axis of the branch at the end of which is made the fixing element 15, and the groove 18 on the branching thread. Thus, the presence of two fixed elements for fixing the threads 13 and 15 on different independently movable parts of the device allows not only to hold both ends of one thread 6, but also atyagivat formed assemblies when moving these movable parts. The optimal constituent elements of the double fixation device of the thread 12 for the first embodiment (Fig. 3) is the fixing thread element 13 in the form of a blind channel with compliant walls at the end of the needle 4, where one end 7 of the needle 6 is riveted in the form of a rigid fixed connection 14 and located on a separate a movable device 16 or a branch, the second thread-fixing element 15 in the form of an extensible eye-type slit for removable connection 14 to the other end 7 of the thread 6. Moreover, a separate mobile device 16 may have a drive separate from the branch movement (tension, relaxation) niti.6 fixed end. The thread in this case is a free open one loop, one or both ends of which can be initially or during operation be fixed to devices 13 and 15.

In the second embodiment, the needle holder 1 (figure 4) is performed with the reciprocating movement of one or two working branches 2 and 3 along the longitudinal axis 19 of the distal working part of the tool, the branches of which are spaced from the support leg 20 of the distal branch at an angle of 60 to 180 degrees . transverse protrusions in the form of T- or G-shaped jaws forming sliding along the axis 19 or legs 20 and spaced, on a relatively limited transverse section or transverse plane of the working part of the tool, open side grooves 17 or one groove, but with spaced outlets at an angle from 60 to 180 degrees, relative to the support leg 20, which serve as spaced grips and in the projection of which are independently movable movable needles 4 and 5 with fixed ends 7 of the thread 6. In this case, the groove may be a skew a systematic way. Alternatively, the device may have one distal L-shaped jaw, but configured to rotate along the axis of the support leg and located under

100 0/66 angle clamping surface. In the third variant (Fig. 5), the needle holder 1 is made with axially extending lateral branches of the same type 2, and between the side branches 2 the device has a supporting longitudinal leg 20, on the distal end of which there are clamping surfaces on both sides of the needle fixing sockets 8, in connection with which the support leg 20 carries the function of an internal additional jaw 3 and forms separate, sliding, unidirectional grooves 17 with lateral branches 2 on both sides of the support leg, the planes of which can be deployed up to 180 degrees along the axis of the support n the brackets 20 and in the projection of which the movable needles 4 and 5 are independently movable from each other with the fixed ends 7 of the thread 6. In these embodiments, the movable double-fixation device 12 is represented by two independently movable and located in the projections of different grips thread fixation devices 13 and 15 on independently movable movable needles 4 and 5, which fix the end parts 7 of one loop of the thread 6 in the form of fixed variants of the connection 14, made in the projection of different grippers 17. Moreover, the ends 7 of the thread 10 can be iksirovany against the front ends of the non-tapered movable needle 4 and 5 as a rigid permanent connection 14, either in the form of one of fixed connections to the middle portion of the needle with two edges. These device options are intended for the isolated capture and retention of tissue in two places or points of the transverse segment of the working part of the tool and the possibility of isolated flashing with two movable needles at two points with one thread, but with the formation of one seam and knot, Drive 11 needle holder 1 (figure 1) It has

handles 21 for reciprocating movement of one or both branches 2 and 3 relative to each other in the variant of axial movement or reciprocating movement, with the possibility of independent movement of the branch and movement of the movable needles by directly connecting the handles and branch with each other or, in endoscopic version with an intermediate tube, the connection of one of the sliding working branches with a handle or the separate connection of both branches with handles for movement can be carried out through those passing into the tube truncated connecting rods or rods. In the endoscopic needle holder 1, for convenience, the switch 10 of the locking clips 9 on the branches is output to the drive 11. In the embodiment with axially extending branches, the drive is carried out immediately on two side branches, which can have each separate or one common drive in the form of a movable rod. The movable needles 4 and 5 are made in the form of rigid, pointed at one or two ends, rods of different sections (the round section is optimal), can be straight along the entire length, curved in the middle part, but with longitudinal straight end parts, different in diameter of the section and sharpening features. Alternatively, the needles can be double-edged, with the ends of one thread fixed in the middle part, which does not fundamentally differ from the use of needles in the form of pointed rods. In this case, the needles may have transverse grooves 22 for retaining clips. The used thread b can be different, and its length can be correlated with the distance 7 of the maximum dilution of the fixed ends of the thread between

jaws for the effect of tightening the node. The locking sockets 8 on the jaws 2 and 3 are designed to enter the end protruding part of the needle into it after passing it through the fabric and fixing it on the jaw with a stopper 9. The sockets 8 can be in the form of grooves and channels with an extension to preserve the relatively correct orientation of the longitudinal needle in the projection fixing sockets. When using magnetic locking clamps or clamp-type clamps, the locking sockets can be directly used by locking clamps 9. The alternate needle fixing device in the form of locking clamps 9 on the branches and with a switch 10 on the actuator 11 is designed to fix the needle on one of the branches during their separation, which makes it possible to move the needle from one branch to another. When sewing fabric, the needles move together with the ends of the thread through the fabric from one branch to another branch and thereby carry out the stitching function with a convenient needle interception mechanism. The locking clamps can be in the form of known elements such as collets, magnetic clamps, longitudinal elastic tape clamps or a longitudinal rotating rod with transverse protrusions and can carry out the function of capturing the needle by compressing the needle with clamping elements, magnet fixation, moving the elastic longitudinal clamp or transverse protrusions of the rotary clamp in transverse groove on the needle, etc. The work of the locking clips 9 on the branches can be separate, synchronous, but with opposite functions on opposite

8 branches and carried out by one or several displayed on

drive, switches 10.

The principle of operation of a variant of the device 1 with a rigid fixed connection of the needle with the thread and detachable connection on other movable elements of the needle holder is shown in Fig.6-8. A needle 4 is inserted into the socket 8 of the jaw holder 2 or 3 of the needle holder (or two other needles at the same time), in the thread fixing device 13 of which one end 7 of the thread 6 is fixed or a needle with a fixed end of the thread is used and then the movable needle 4 is fixed with a stopper 9 on a branch. The second end 7 of the thread 6 is fixed on the device for fixing the thread 15, made, for example, on a separate movable device 16. The stitching of the fabric 23 (Fig.6) is carried out either by compression of the jaw, or by grabbing the fabric with a needle. In this case (Fig. 7), the needle is fixed on another branch and, after breeding, the branch passes through the fabric 23 together with the end 7 of the thread. Thus, the fabric is flashed with a needle and thread. Due to the alternate movement of the needle between the jaws, a node 24 is formed (Fig. 8), which is easily tightened either by diluting the jaw or pulling the ends of the thread, on one side of the jaw with a needle fixed on it and on the other hand, by a separate movable device 16 on the other jaw, due to its movement and tension of this end of the thread. To increase the amplitude of the tension, the thread 6 can be thrown through a separate groove 18 on the branch. Similarly, additional nodes are formed and tightened, if necessary.

9 The operation of the needle holder with two movable needles is shown in

Figures 9,10. The needle holder 1 with fixed (as an option, multidirectional) on the jaws 2 and 3 with movable needles (Fig. 9) is brought to the stitched organ and then both branches 2 are closed by the action of the handles, while grabbing the fabric between the jaws 2 at the same time or sequentially with separate grippers 17 and 3 on both sides. Closing the jaws, the needle holder sews the fabric in two places with two needles, the end parts of which enter the corresponding sockets 8 on the opposite jaws and, by turning the switch 10, are fixed with locking clips 9 on these jaws. In this case, the opposite end parts of the needles are simultaneously freed from capture. When breeding the branch, the needles with ends 7 of the thread 6 pass through the punctures in the organ 23, forming a stitch of the seam (figure 10), while remaining fixed in the branches of the tool. After the formation of the node 24, the latter is tightened by diluting the jaw, moving the fixed needles with the ends of the thread in different directions. A possible method of tightening the node and the pressure of the distal jaw directly on the node24. Thus, a needle holder with a movable needle and a double thread fixing device makes the operation of sewing fabrics and tightening the knot easier and faster, since both ends of the thread are fixed and stretched, and in the variant with two mobile needles, the device allows the fabric to be sewn with a continuous cross-stitch. This device can be widely used in endoscopic surgery.

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Claims (3)

1. A device for suturing tissues with a needle with a thread in the form of a needle holder with sliding jaws, a movable needle and with variable locking tabs for the needle on the branches, characterized in that the needle holder on the working part of the tool has two spaced devices for fixed connection and independent movement of the ends of one thread, made on different and independently movable components or parts of the needle holder, one of which is made on a movable needle and in the form of a connection fixing the end of the thread is located in tion separate sliding grip, where the needle is represented by a pointed rod. 2. The device according to p. 1, characterized in that the needle holder is made with the reciprocating movement of the working jaws having transverse protrusions extended and spaced from the support leg of the distal jaw at an angle of 60 to 180 ^° , forming spaced pairs of working jaws and oblique grippers, in the projection of which are located, in connection with two independently movable needles, the ends of one thread in the form of a mobile device of double fixation. 3. The device according to claim 1, characterized in that the needle holder is made with axially extending lateral jaws and a supporting leg in the form of an internal bilateral clamping jaw, forming separate sliding grips, in the projection of which two independently movable movable needles are fixed, fixed to the ends of one threads.