Bendable crochet needle for child operation

Abstract

The utility model provides a bendable crochet needle for child surgery, which comprises an outer tube and a needle core slidably arranged in the outer tube in a penetrating manner, a movable sheath is movably arranged at one end of the outer tube, one end of the needle core penetrates through the movable sheath, hook teeth are arranged at one end, close to the movable sheath, of the needle core, and a push handle is arranged at the other end of the needle core; a plurality of traction steel wires are arranged between the movable sheath and the outer tube in an array mode, one end of each traction steel wire is connected with the side of the movable sheath, the other end of each traction steel wire is connected with the side of the outer tube, and a plurality of containing grooves used for containing deformation of the traction steel wires are formed in the side of the outer tube. According to the bendable crochet needle for the child operation, the traction steel wire is pressed to drive the movable sheath to swing, so that the needle core is bent, the needle core is pushed through the push handle to enable the hook teeth to stretch out to hook a suture, bending of the crochet needle and fixing of the suture are achieved, the operation is convenient and fast, and the operation efficiency is improved. The situation that the crochet hook swings at a large angle to affect the operation effect is avoided, and the operation efficiency and reliability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, specifically is a kind of bendable hook needle for children operation. BACKGROUND

[0002] With the promotion and application of minimally invasive medical equipment, minimally invasive surgical technique of urology is more and more mature, and more and more patients begin to choose minimally invasive technique with small trauma and fast recovery to treat diseases, which also becomes mainstream technique in urology field, especially in pediatric surgery of urology. At present, the main means for treating pediatric transverse hydrocele and indirect inguinal hernia is to take laparoscopic surgery, and hook needle is needed to cooperate during operation. The existing children's medical hook needle is a vertical metal device, which is composed of an outer sheath and an inner core. The outer sheath is used for puncture and completion of annular ligation, and the inner core is used for hooking the suture line in the deep part of the patient to ligate the internal ring of the inguinal canal. However, since the hook teeth at the end of the hook needle are in the deep part of the affected area, the doctor needs to swing the angle of the entire hook needle to make the hook teeth enter the deep part of the affected area and complete the suture action. The large-angle swinging of the hook needle by the operator not only makes the operation inconvenient, but also easily damages the spermatic cord when the vertical hook needle separates the peritoneum from the extraperitoneal spermatic cord, which affects the surgical effect.

[0003] The existing hook needle is inconvenient to operate when hooking the line, which affects the efficiency and reliability of the operation. The present scheme solves the above technical problems. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the utility model provides a bendable hook needle for children operation, one end of an outer tube movably provided with a movable sheath, the movable sheath is swung by pressing and pulling a steel wire, so as to realize the bending of the needle core, the hook teeth are stretched out to hook the suture line by pushing the handle to push the needle core, the bending of the hook needle and the fixation of the suture line are realized, the entire hook needle does not need to be swung during operation, the operation is convenient and fast, the large-angle swinging of the hook needle is avoided to affect the surgical effect, and the efficiency and reliability of the operation are improved.

[0005] To achieve the above object, the utility model takes the technical scheme that a bendable hook needle for children operation includes an outer tube and a needle core slidingly penetrating in the outer tube, one end of the outer tube movably provided with a movable sheath, one end of the needle core penetrating the movable sheath, the end of the needle core close to the movable sheath is provided with hook teeth, and the other end of the needle core is provided with a push handle.

[0006] A plurality of traction steel wires are arranged between the movable sheath and the outer tube, one end of the traction steel wire is connected with the side of the movable sheath, the other end of the traction steel wire is connected with the side of the outer tube, and the side of the outer tube is provided with a plurality of accommodation grooves for accommodating the deformation of the traction steel wire.

[0007] One end of the outer tube is provided with a contraction opening, the movable sheath comprises a sheath barrel sleeved outside the needle core, a check ring arranged on the side of the sheath barrel, and a limiting ball head arranged at one end of the sheath barrel, the limiting ball head and the check ring are movably arranged on the two sides of the contraction opening, a spring is sleeved outside the needle core, one end of the spring is connected with the side of the needle core, and the other end of the spring is in abutment with the limiting ball head.

[0008] The outer side of the outer tube is sleeved with a silica gel sleeve for protecting the traction steel wire, one end of the silica gel sleeve is connected with the outer side of the sheath barrel, and the other end of the silica gel sleeve is connected with the side of the outer tube.

[0009] The outer side of the silica gel sleeve is provided with anti-skid particles at the corresponding positions of the accommodating grooves.

[0010] One end of the outer tube is provided with a support ring close to the contraction opening, and the traction steel wire is in sliding contact with the support ring.

[0011] One end of the outer tube close to the push handle is provided with a flange.

[0012] The end of the sheath barrel and the end of the hook tooth are all chamfered.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) one end of the outer tube is movably provided with a movable sheath, the movable sheath is swung by pressing the traction steel wire, so that the bending of the needle core is realized, the hook tooth is pushed out to hook the suture by pushing the needle core to make the hook tooth, the bending of the hook needle and the fixation of the suture are realized, the whole hook needle need not be swung during the operation, the operation is convenient and fast, the effect of the operation is avoided by swinging the hook needle at a large angle, and the efficiency and reliability of the operation are improved.

[0015] (2) the silica gel sleeve for protecting the traction steel wire is sleeved outside the outer tube, the internal structure of the hook needle is separated from the affected part, the reliability of the operation is improved, the anti-skid particles are arranged outside the silica gel sleeve, the traction steel wire is pressed more conveniently and fast, and then the efficiency of the operation is improved.

[0016] (3) the end of the sheath barrel is arranged as a chamfered surface, the hook needle is more convenient and fast to enter the affected part, the end of the hook tooth is arranged as a chamfered surface, the suture slides into the hook tooth along the chamfered surface, and the hook tooth is more convenient and fast to pull the suture. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Is the sectional view structure schematic diagram of the utility model;

[0018] Figure 2 Is the utility modelFigure 1 is a partial enlarged structural schematic view of part A of the utility model;

[0019] Figure 3 is a structural schematic view of the limiting ball head of the utility model;

[0020] Figure 4 is a partial enlarged structural schematic view of part B of the utility model; Figure 1

[0021] Figure 5 is an application schematic view of the utility model.

[0022] Among them, in the drawing: 1, outer tube; 11, containing groove; 12, contraction mouth; 13, flange; 2, needle core; 21, hook tooth; 22, push handle; 3, movable sheath; 31, sheath barrel; 32, check ring; 33, limiting ball head; 4, traction steel wire; 5, spring; 6, silica gel sleeve; 61, anti-skid particle; 7, support ring. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the technical features of the present scheme, the present scheme will be described below through specific embodiments.

[0024] Referring to Figures 1-5 , a bendable hook needle for children surgery, comprising an outer tube 1 and a needle core 2 slidingly penetratingly arranged in the outer tube 1, the outer tube 1 movably provided with a movable sheath 3 at one end, the needle core 2 penetratingly arranged through the movable sheath 3 at one end, the needle core 2 provided with a hook tooth 21 at the end close to the movable sheath 3, the other end of the needle core 2 provided with a push handle 22;

[0025] A plurality of traction steel wires 4 are arranged between the movable sheath 3 and the outer tube 1, one end of the traction steel wire 4 connected with the side of the movable sheath 3, the other end of the traction steel wire 4 connected with the side of the outer tube 1, the side of the outer tube 1 provided with a plurality of containing grooves 11 for accommodating the deformation of the traction steel wire 4.

[0026] One end of the outer tube 1 is provided with a contraction mouth 12, the movable sheath 3 comprising a sheath barrel 31 sleeved on the outer side of the needle core 2, a check ring 32 arranged on the side of the sheath barrel 31, and a limiting ball head 33 arranged at one end of the sheath barrel 31, the limiting ball head 33 and the check ring 32 movably arranged on the inner and outer sides of the contraction mouth 12, the outer side of the needle core 2 sleeved with a spring 5, one end of the spring 5 connected with the side of the needle core 2, the other end of the spring 5 abutting against the limiting ball head 33.

[0027] The outer side of the outer tube 1 is sleeved with a silica gel sleeve 6 for protecting the traction steel wire 4, one end of the silica gel sleeve 6 connected with the outer side of the sheath barrel 31, the other end of the silica gel sleeve 6 connected with the side of the outer tube 1.

[0028] The outer side of the silica gel sleeve 6 is provided with anti-skid particles 61 at the corresponding positions of the containing grooves 11. ​

[0029] The end side of the outer tube 1 is provided with a support ring 7 near the contraction opening 12, and the traction steel wire 4 is in sliding contact with the support ring 7.

[0030] The outer tube 1 is provided with a flange 13 near one end of the push handle 22.

[0031] The end of the sheath 31 and the end of the hook tooth 21 are both chamfered.

[0032] The specific working process and working principle of the utility model are as follows:

[0033] Firstly, referring to Figure 1 , Figure 4 , the hook tooth 21 is inside the movable sheath 3, the hook needle is stretched into the deep part of the patient, referring to Figure 5 It is the application schematic diagram of the utility model, and the anti-skid particles 61 on one side of the middle silica gel sleeve 6 are bent to make the traction steel wire 4 in the corresponding position enter the containing groove 11, so that the side of the movable sheath 3 is stressed under the traction of the traction steel wire 4, and the limiting ball head 33 swings at the contraction opening 12 of the outer tube 1, so that the movable sheath 3 drives the needle core 2 inside to produce bending deformation;

[0034] At this time, the other hand holds the flange 13 of the appearance, and the thumb pushes the push handle 22, so that the needle core 2 slides along the movable sheath 3 against the elastic force of the spring 5, when the hook tooth 21 of the needle core 2 slides to the outside of the movable sheath 3, the suture in the deep part of the patient is hooked under the cooperation of the laparoscope, then the push handle 22 is released, and under the action of the spring 5, the hook tooth 21 carries the suture into the inside of the movable sheath 3, the suture is firmly fixed, finally the anti-skid particles 61 on the silica gel sleeve 6 are released, the whole hook needle is taken out, then the handle is pushed again, the hook tooth 21 releases the suture, and finally the annular ligation operation is completed through the suture.

[0035] One end of the outer tube 1 movably provides the movable sheath 3, the movable sheath 3 is swung by pressing the traction steel wire 4, so that the bending of the needle core 2 is realized, the hook tooth 21 is stretched out to hook the suture by pushing the needle core 2 through the push handle 22, the bending of the hook needle and the fixation of the suture are realized, the whole hook needle does not need to be swung during the operation, the operation is convenient and fast, the influence of the hook needle on the operation effect is avoided when swinging at a large angle, and the efficiency and reliability of the operation are improved;

[0036] The silica gel sleeve 6 for protecting the traction steel wire 4 is arranged on the outside of the outer tube 1, so that the internal structure of the hook needle is separated from the affected part, the reliability of the operation is improved, the anti-skid particles 61 are arranged on the outside of the silica gel sleeve 6, so that the pressing operation of the traction steel wire 4 is more convenient and fast, and the efficiency of the operation is improved;

[0037] By setting the end of the sheath 31 as a bevel, the hook needle is more convenient and fast to enter the affected area, and by setting the end of the hook tooth 21 as a bevel, the suture is more convenient and fast to slide into the hook tooth 21, so that the hook tooth 21 is more convenient and fast to hold the suture.

[0038] The technical features not described in the utility model can be realized by or using the prior art, and will not be described here again, of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples, the changes, modifications, additions or replacements made by the ordinary skilled in the art within the essential scope of the utility model should also belong to the protection scope of the utility model.

Claims

1. A flexible hook for pediatric surgery, comprising an outer tube (1) and a needle core (2) slidably disposed within the outer tube (1), characterized in that, One end of the outer tube (1) is movably provided with a movable sheath (3), one end of the needle core (2) is provided through the movable sheath (3), the end of the needle core (2) near the movable sheath (3) is provided with a hook tooth (21), and the other end of the needle core (2) is provided with a push handle (22). A plurality of traction steel wires (4) are arranged in an array between the movable sheath (3) and the outer tube (1). One end of the traction steel wire (4) is connected to the side of the movable sheath (3), and the other end of the traction steel wire (4) is connected to the side of the outer tube (1). A plurality of receiving grooves (11) for accommodating the deformation of the traction steel wire (4) are provided on the side of the outer tube (1).

2. The flexible hook for pediatric surgery according to claim 1, characterized in that, One end of the outer tube (1) is provided with a contraction port (12). The movable sheath (3) includes a sheath tube (31) sleeved on the outside of the needle core (2), a retaining ring (32) provided on the side of the sheath tube (31), and a limiting ball head (33) provided on one end of the sheath tube (31). The limiting ball head (33) and the retaining ring (32) are movably disposed on the inside and outside of the contraction port (12). A spring (5) is sleeved on the outside of the needle core (2). One end of the spring (5) is connected to the side of the needle core (2), and the other end of the spring (5) abuts against the limiting ball head (33).

3. The flexible hook for pediatric surgery according to claim 2, characterized in that, The outer tube (1) is fitted with a silicone sleeve (6) for protecting the traction wire (4). One end of the silicone sleeve (6) is connected to the outside of the sheath (31), and the other end of the silicone sleeve (6) is connected to the side of the outer tube (1).

4. The flexible hook for pediatric surgery according to claim 3, characterized in that, Anti-slip particles (61) are provided on the outer side of the silicone sleeve (6) at the corresponding position of the receiving groove (11).

5. The flexible hook for pediatric surgery according to claim 2, characterized in that, A support ring (7) is provided on one side of the outer tube (1) near the contraction port (12), and the traction wire (4) slides in contact with the support ring (7).

6. The flexible hook for pediatric surgery according to claim 5, characterized in that, The outer tube (1) has a flange (13) at one end near the push handle (22).

7. The flexible hook for pediatric surgery according to claim 2, characterized in that, The ends of the sheath (31) and the hook teeth (21) are both oblique cut surfaces.

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