Surgical stitching instrument capable of preventing mistaken stabbing

Abstract

The surgical stitching instrument comprises a first hollow pipe and a second hollow pipe, a flexible push rod which is in sliding fit with the first hollow pipe is arranged in the middle of the first hollow pipe in a penetrating mode, a needle outlet is formed in one end of the first hollow pipe, a needle inlet is formed in one end of the second hollow pipe, and the needle outlet and the needle inlet are oppositely arranged. The other end of the second hollow pipe is rotationally connected with the first hollow pipe through a rotating shaft; the suture needle and the suture line are connected, and the suture needle is in sliding fit with the first hollow pipe and the second hollow pipe. According to the operation stitching instrument capable of preventing mistaken stabbing, when a patient is subjected to stitching treatment, an operator can be effectively prevented from being stabbed by the stitching needle, and operation is safer.

Description

TECHNICAL FIELD

[0001] The utility model relates to surgical operation tool field especially relates to a kind of surgical suturing device of preventing mistake puncture. BACKGROUND

[0002] Surgical suture needle is indispensable medical instrument in clinical practice, and it is used in the work by almost every doctor. However, the existing suture needle has the risk of injuring the operator. Needle injury not only causes body damage, but also can cause the spread of infectious diseases, posing a serious threat to the health and safety of medical staff. In addition, when performing suture treatment on patients with infectious diseases, the operator often bears great psychological pressure. This pressure not only can weaken the accuracy and efficiency of suture operation, but also can increase the risk of operation failure, thereby causing accidental injury to the operator. Therefore, it is extremely important to effectively avoid needle injury.

[0003] The common strategies that can be used to reduce needle injury at present include: 1. blunt suture needle, which has reduced ability to pierce the operator's gloves and skin, helping to reduce the risk, but cannot absolutely avoid needle injury; 2. disposable skin suture device (skin pin), but it can only suture the skin and cannot handle deep tissues or organs; 3. surgical glue, which is relatively simple to use, but the high cost and the potential risks in suture of important tissues such as heart and large blood vessels make it not an ideal alternative. Therefore, the existing methods have not been able to well solve the problem of needle injury, and a safer and more effective measure is urgently needed. SUMMARY

[0004] The utility model aims at providing a kind of surgical suturing device of preventing mistake puncture, when suture treatment is carried out to patient, operator can be effectively avoided by suture needle puncture, operation is safer.

[0005] To achieve the above-mentioned purpose, the utility model provides a kind of surgical suturing device of preventing mistake puncture, including first hollow tube and second hollow tube, the middle part of first hollow tube is provided with flexible push rod that is slidably connected with it, one end of first hollow tube is provided with needle outlet, one end of second hollow tube is provided with needle inlet, needle outlet and needle inlet are oppositely arranged, the other end of second hollow tube is rotatably connected with first hollow tube by pivot;It also includes suture needle and suture line connected, suture needle is slidably connected with first hollow tube and second hollow tube.

[0006] As a further improvement of the utility model, the first hollow tube includes a straight line segment and a first circular arc segment connected in sequence, the second hollow tube includes a second circular arc segment, the radii of the first circular arc segment, the second circular arc segment and the suture needle are the same;The needle outlet is arranged at the end of the first circular arc segment, and the needle inlet is arranged at the end of the second circular arc segment.

[0007] As a further improvement of the utility model, the flexible push rod is inserted from one end of the linear segment of the first hollow pipe, and one end of the flexible push rod is located in the first circular segment; the other end of the flexible push rod is located outside the first hollow pipe and is connected with an operating part; the operating part is connected with one end of the linear segment through a reset spring.

[0008] As a further improvement of the utility model, a rotation limiting structure is arranged between the first hollow pipe and the second hollow pipe; the rotation limiting structure comprises a rotation limiting top block arranged on at least one of the first hollow pipe and the second hollow pipe.

[0009] As a further improvement of the utility model, one end of the suture is connected to the tail of the suture needle.

[0010] As a further improvement of the utility model, a first limiting structure for limiting the position of the suture needle is arranged on the first hollow pipe.

[0011] As a further improvement of the utility model, the first limiting structure comprises a first protrusion arranged on the inner wall of the first hollow pipe; a limiting groove is arranged on the side wall of the suture needle, and the first protrusion is in clamping cooperation with the limiting groove.

[0012] As a further improvement of the utility model, a second limiting structure is arranged in the second hollow pipe, and the second limiting structure comprises a second protrusion arranged on the inner wall of the second hollow pipe and in clamping cooperation with the limiting groove of the suture needle.

[0013] Advantages

[0014] Compared with the prior art, the surgical suture device for preventing accidental injury has the following advantages:

[0015] 1. Since the suture needle is located in the first hollow pipe or the second hollow pipe in the preparation stage, the suture stage and the completion stage, the suture needle is not exposed throughout the process, so there is no risk of accidentally injuring the operator, the puncture ability of the suture needle is retained, and the operator is not injured, and the use is safer. After puncture is completed, the suture line can be knotted by hand.

[0016] 2. The radii of the first circular segment, the second circular segment and the suture needle are the same, so that the suture needle can smoothly reach the second hollow pipe from the first hollow pipe, and the problem of jamming is not prone to occur. The first circular segment and the second circular segment are respectively arranged on the first hollow pipe and the second hollow pipe, which is beneficial to reducing the size of the suture device and ensuring that the flexible push rod can slide in the middle of the first circular segment and the second circular segment, thereby completing the action of pushing the suture needle.

[0017] 3. The operating part of the flexible push rod is convenient for hand holding and operation, and cooperates with the reset spring to enable the flexible push rod to quickly reset.

[0018] 4. Since the part of the patient's body that needs to be sutured is sandwiched between the needle outlet and the needle inlet of the hollow tube, a certain distance needs to be left between the needle outlet and the needle inlet. At the same time, it is also necessary to ensure that the centers of the first arc segment and the second arc segment of the hollow tube are basically coincident. This is to ensure that the suture needle can smoothly enter the second hollow tube through the needle inlet after passing through the needle outlet of the first hollow tube. At this time, the actual position of the limiting block can be used to determine whether the centers of the first arc segment and the second arc segment have coincided.

[0019] 5. The suture needle can be limited by the cooperation of the protrusion and the limiting groove, which prevents the suture needle from accidentally falling off when the flexible push rod is not acting on the suture needle.

[0020] 6. An anti-deviation limiting structure is provided between the opposite ends of the two rotating limiting blocks. The anti-deviation limiting structure includes a matching limiting slot and a limiting protrusion. The limiting slot and the limiting protrusion are respectively set on the two rotating limiting blocks. By setting the anti-deviation limiting structure, the problem of lateral displacement when the two rotating limiting blocks come into contact with each other is prevented.

[0021] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 One of the front sectional views of a surgical suture device designed to prevent accidental puncture injuries;

[0024] Figure 2 Second front sectional view of a surgical suture device designed to prevent accidental punctures;

[0025] Figure 3 A cross-sectional view of a surgical suture device in use to prevent accidental puncture injuries;

[0026] Figure 4 This is an enlarged view of the structure where the suture needle is located within the first arc segment;

[0027] Figure 5 This is a magnified view of the suture needle;

[0028] Figure 6 Enlarged view of the anti-deviation limiting structure;

[0029] Figure 7The schematic view of the two ends of the same suture line being connected with the suture needle. DETAILED DESCRIPTION

[0030] Embodiments of the present application will now be described with reference to the accompanying drawings.

[0031] Embodiments

[0032] As shown in the specific embodiment of the present application, Figures 1 to 6 The surgical suturing device for preventing accidental puncture injury comprises a first hollow tube 1 and a second hollow tube 2, a flexible push rod 4 is arranged in the middle of the first hollow tube 1 in sliding cooperation with the first hollow tube 1, one end of the first hollow tube 1 is provided with a needle outlet 14, one end of the second hollow tube 2 is provided with a needle inlet 20, the needle outlet 14 and the needle inlet 20 are arranged opposite to each other, and the other end of the second hollow tube 2 is rotationally connected with the first hollow tube 1 through a rotating shaft 3. The surgical suturing device further comprises a suture needle 5 and a suture line 7 connected with each other, and the suture needle 5 is in sliding cooperation with the first hollow tube 1 and the second hollow tube 2. One end of the suture line 7 is connected to the tail of the suture needle 5.

[0033] The first hollow tube 1 comprises a straight line segment 12 and a first circular arc segment 11 connected in sequence, and the second hollow tube 2 comprises a second circular arc segment, and the part of the second hollow tube 2 close to the rotating shaft 3 is in the shape of a straight rod. The center line radius of the first circular arc segment 11, the second circular arc segment and the suture needle 5 is the same. The needle outlet 14 is arranged at the end of the first circular arc segment 11, and the needle inlet 20 is arranged at the end of the second circular arc segment. The length of the straight line segment 12 is greater than that of the first circular arc segment 11, so as to ensure that the straight line segment 12 can be held by a hand. The length of the straight line segment 12 is close to the length of a signing pen, and the size of the circle formed by the first circular arc segment 11 and the second circular arc segment is similar to the size of a key ring. In order to ensure the easy operation of the flexible push rod 4, the flexible push rod 4 is made of a material with certain hardness and elasticity, for example, a stainless steel wire with certain elastic deformation capacity.

[0034] The flexible push rod 4 is arranged in the straight line segment 12 of the first hollow tube 1 from one end, and one end of the flexible push rod 4 is located in the first circular arc segment 11. The other end of the flexible push rod 4 is located outside the first hollow tube 1 and is connected with an operating part 10. A return spring 9 is connected between the operating part 10 and one end of the straight line segment 12.

[0035] The first hollow tube 1 and the second hollow tube 2 are provided with a rotation limiting structure. The rotation limiting structure comprises rotation limiting top blocks 8 arranged on at least one of the first hollow tube 1 and the second hollow tube 2. In the embodiment, the number of the rotation limiting top blocks 8 is two, and the rotation limiting top blocks 8 are arranged on the first circular arc segment 11 of the first hollow tube 1 and the second circular arc segment of the second hollow tube 2 respectively. The two rotation limiting top blocks 8 are symmetrically arranged, and when the ends of the two rotation limiting top blocks 8 contact each other, the centers of the first circular arc segment 11 of the first hollow tube 1 and the second circular arc segment of the second hollow tube 2 coincide, and at this time, a certain gap (the size of the gap is not more than 1 / 3 of the length of the suture needle 5) is left between the needle outlet 14 and the needle inlet 20, which is used for clamping the human tissue to be sutured in the middle.

[0036] The two rotation limiting top blocks 8 are arranged on the first hollow tube 1 and the second hollow tube 2 respectively, and a deviation limiting structure is arranged between the opposite ends of the two rotation limiting top blocks 8. The deviation limiting structure comprises a limiting slot 151 and a limiting protrusion 152 which are matched with each other, and the limiting slot 151 and the limiting protrusion 152 are arranged on the two rotation limiting top blocks 8 respectively. When the ends of the two rotation limiting top blocks 8 contact each other, the limiting protrusion 152 extends into the inside of the limiting slot 151, so as to ensure that the needle outlet 14 and the needle inlet 20 can be aligned with each other.

[0037] In addition, the number of the rotation limiting top blocks 8 can also be one, for example, the rotation limiting top block 8 is arranged on the first hollow tube 1, and when the end of the rotation limiting top block 8 just abuts against the outer wall of the second hollow tube 2, the centers of the first circular arc segment 11 of the first hollow tube 1 and the second circular arc segment of the second hollow tube 2 coincide, and at this time, a certain gap is left between the needle outlet 14 and the needle inlet 20.

[0038] The first hollow tube 1 is provided with a first limiting structure for limiting the position of the suture needle 5. In the embodiment, the first limiting structure comprises a plurality of first protrusions 13 arranged on the inner wall of the first hollow tube 1. The side wall of the suture needle 5 is provided with two limiting grooves 51, and each limiting groove 51 is arranged around the axis of the suture needle 5. The first protrusions 13 and the limiting grooves 51 are in clamping connection. The first protrusions 13 are in hemispherical shape, and at least two first protrusions 13 correspond to one limiting groove 51. When the suture needle 5 is located in the first hollow tube 1, the suture thread 7 connected to the tail end of the suture needle 5 bypasses the first protrusions 13 and passes through the gap between the suture needle 5 and the first hollow tube 1, and the other end of the suture thread 7 extends out of the first hollow tube 1.

[0039] The second hollow tube 2 is also provided with a second limiting structure, and the second limiting structure comprises a second protrusion 21 arranged on the inner wall of the second hollow tube 2 and in clamping connection with the limiting grooves 51 of the suture needle 5.

[0040] Before use, the suture needle 5 is located in the first hollow tube 1, the first protrusion 13 of the first hollow tube 1 is in clamping fit with the limiting groove 51 of the suture needle 5, and the suture thread 7 passes through the gap between the suture needle 5 and the inner wall of the first hollow tube 1 and is out of the needle outlet 14. The operator opens the first hollow tube 1 and the second hollow tube 2, pinches the tissue 16 to be sutured on the patient with forceps, rotates the first hollow tube 1 and the second hollow tube 2, and clamps the tissue 16 to be sutured with one end of the two hollow tubes. The operator holds the first hollow tube 1 and the second hollow tube 2 in the middle with one hand and applies pressure until the top of the two rotating limiting blocks 8 is in contact. The operator holds the operation part 10 with the other hand, pushes the flexible push rod 4 to slide in the first hollow tube 1, and pushes the suture needle 5 out of the needle outlet 14. The suture needle 5 pulls the suture thread 7 to pass through the tissue 16 to be sutured and enters the second hollow tube 2 from the needle inlet 20 until the limiting groove 51 of the suture needle 5 is in clamping fit with the second protrusion 21 of the second hollow tube 2. Then the flexible push rod 4 is reset under the action of the reset spring, and the first hollow tube 1 and the second hollow tube 2 are reopened. Finally, the operator cuts off the suture thread 7 at the tail of the suture needle 5, knots the suture thread 7 passing through the tissue 16 to be sutured, and completes the suture.

[0041] The above device or operation is only suitable for single suture. In the case of twice suture of the tissue 16 to be sutured (such as suture of deep tissue), the two anti-injury surgical sutures are symmetrically arranged (one of the two surgical sutures is horizontally rotated by 180°, so that the first hollow tube 1 of one surgical suture is arranged adjacent to the second hollow tube 2 of the other surgical suture), and are combined together as a whole, as shown in the figure, so that both ends of the same suture thread 7 are connected with the suture needle 5, the suture needle 5 at both ends of the suture thread 7 is located in the two surgical sutures respectively, and the flexible push rod 4 of the two surgical sutures is operated respectively to perform puncture of the suture needle 5, so that one device can be used for twice suture and the same suture thread 7 is shared. Figure 7

[0042] The above describes the utility model in combination with the best embodiment, but the utility model is not limited to the above disclosed embodiments, and should cover various modifications, equivalent combinations according to the essence of the utility model.​

Claims

1. A surgical stapler that prevents accidental needle sticks, characterized by, The utility model provides a kind of suture needle, including first hollow tube (1) and second hollow tube (2), the middle part of first hollow tube (1) is provided with flexible push rod (4) with sliding fit, one end of first hollow tube (1) is equipped with needle outlet (14), one end of second hollow tube (2) is equipped with needle inlet (20), needle outlet (14) is arranged opposite with needle inlet (20), the other end of second hollow tube (2) is rotatably connected with first hollow tube (1) by rotating shaft (3);It further includes connected suture needle (5) and suture line (7), suture needle (5) is slidably fitted with first hollow tube (1), second hollow tube (2).

2. The surgical stapler of claim 1, wherein: The first hollow tube (1) includes a straight segment (12) and a first circular arc segment (11) in sequence, the second hollow tube (2) includes a second circular arc segment, the radii of the first circular arc segment (11), the second circular arc segment and the suture needle (5) are the same; the needle outlet (14) is arranged at the end of the first circular arc segment (11), and the needle inlet (20) is arranged at the end of the second circular arc segment.

3. The surgical stapler of claim 2, wherein: The flexible push rod (4) penetrates from one end of the straight segment (12) of the first hollow tube (1), one end of the flexible push rod (4) is located in the first circular arc segment (11), and the other end of the flexible push rod (4) is located outside the first hollow tube (1) and is connected with an operating part (10); a return spring (9) is connected between the operating part (10) and one end of the straight segment (12).

4. The surgical stapler of claim 1, wherein: The first hollow tube (1) and the second hollow tube (2) are provided with a rotation limiting structure; the rotation limiting structure includes a rotation limiting top block (8), and the rotation limiting top block (8) is arranged on at least one of the first hollow tube (1) and the second hollow tube (2).

5. The surgical stapler of claim 1, wherein: One end of the suture line (7) is connected to the tail of the suture needle (5).

6. The surgical stapler of claim 1, wherein: The first hollow tube (1) is provided with a first limiting structure for limiting the position of the suture needle (5).

7. The surgical stapler of claim 6, wherein: The first limiting structure includes a first protrusion (13), and the first protrusion (13) is arranged on the inner wall of the first hollow tube (1); a limiting groove (51) is arranged on the side wall of the suture needle (5), and the first protrusion (13) is in clamping connection with the limiting groove (51).

8. The surgical stapler of claim 7, wherein: The second hollow tube (2) is provided with a second limiting structure, and the second limiting structure includes a second protrusion (21), which is arranged on the inner wall of the second hollow tube (2) and in clamping connection with the limiting groove (51) of the suture needle (5).

9. The safety needle assembly of claim 4, wherein: The rotation limiting top block (8) is two and is arranged on the first hollow tube (1) and the second hollow tube (2) respectively, and a deviation preventing limiting structure is arranged between the opposite ends of the two rotation limiting top blocks (8), and the deviation preventing limiting structure includes a limiting slot (151) and a limiting protrusion (152) in cooperation, and the limiting slot (151) and the limiting protrusion (152) are arranged on the two rotation limiting top blocks (8) respectively.

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