Double-joint needle forceps for assisting suture

Abstract

The pair of double-joint needle forceps comprises a left forceps part rod and a right forceps part rod, needle forceps length adjusting assemblies are arranged in the left forceps part rod and the right forceps part rod, a forceps part movable mounting assembly is arranged on one side of each needle forceps length adjusting assembly, an elastic auxiliary clamping assembly is arranged on one side of each forceps part movable mounting assembly, and the elastic auxiliary clamping assembly is arranged on the other side of each forceps part movable mounting assembly. According to the needle holder for the laparoscope, the prior art is improved, and in actual use, through the needle holder length adjusting assembly, the problems that an existing needle holder for the laparoscope is simple in design, small in freedom degree, poor in flexibility and incapable of meeting the surgical suture requirement of fine operation of the modern laparoscope are solved; and the problems that the needle holder is generally fixed, the length of the needle holder cannot be adjusted according to the mind of a user, and the needle holder needs to be improved are solved.

Description

Technical Field

[0001] The utility model relates to the field of double-joint needle holders, and specifically to a double-joint needle holder for assisting suture. Background Art

[0002] A needle holder with double joints is a precision surgical instrument used in medical surgeries, mainly for clamping and operating suture needles. Laparoscopic minimally invasive surgery is a surgical procedure performed inside a closed pelvic or abdominal cavity for examination or treatment. A laparoscope with a cold light source illumination is inserted into the abdominal cavity through a small incision in the abdominal wall, and the doctor performs the surgery outside the abdominal cavity through the image returned by the endoscope system using minimally invasive surgical instruments. Due to advantages such as small wound, less pain, and fast postoperative recovery, laparoscopic minimally invasive surgery has been widely applied. A needle holder is an essential medical device for suture during laparoscopic surgery.

[0003] Currently, the design of needle holders for laparoscopes is relatively simple, with fewer degrees of freedom, so the flexibility is poor and it cannot meet the requirements of surgical sutures for fine operations in modern laparoscopes. The needle holder is generally fixedly set and cannot be adjusted according to the user's will for the length of the needle holder, and there is a need for improvement. Summary of the Utility Model

[0004] Aiming at the problems in the related technologies, the utility model provides a double-joint needle holder for assisting suture to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] For this purpose, the specific technical solution adopted by the utility model is as follows:

[0006] A double-joint needle holder for assisting suture includes a left clamp rod and a right clamp rod. A needle holder length adjustment component is arranged inside the left clamp rod and the right clamp rod. A clamp part movable mounting component is arranged on one side of the needle holder length adjustment component, and an elastic auxiliary clamping component is arranged on one side of the clamp part movable mounting component;

[0007] To achieve the function of adjusting the length of the needle holder, the needle holder length adjustment component includes an adjustment mounting groove which is respectively installed inside the left clamp rod and the right clamp rod. The inner wall of the adjustment mounting groove is connected with a friction layer. A friction block is arranged inside the adjustment mounting groove. The middle of the friction block is connected with a sliding rod. A sliding limit head is arranged on one side of the adjustment mounting groove. A sliding limit groove is opened inside the sliding limit head. The sliding rod and the sliding limit groove are slidably and sealingly matched through a sealing ring.

[0008] Furthermore, air vents are opened inside the left clamp rod and the right clamp rod.

[0009] Furthermore, in order to achieve the function of the movable installation of the clamping part, the clamping part movable installation component includes a left clamping head and a right clamping head. The left clamping head and the right clamping head are respectively connected to a left clamping part rod and a right clamping part rod. An activity connection groove is formed inside the right clamping head, and an activity rotating shaft is installed inside the activity connection groove.

[0010] Furthermore, holding needles teeth are respectively installed on one side of the left clamping head and the right clamping head. Holding handles are respectively connected to one side of the left clamping part rod and the right clamping part rod. A rubber sleeve is sleeved on the periphery of the holding handle.

[0011] Furthermore, in order to achieve the function of elastic assistance, the elastic assistance clamping component includes a tension spring. The two ends of the tension spring are respectively connected to the left clamping part rod and the right clamping part rod. An anti-opening connection piece is connected to one side of the left clamping part rod and the right clamping part rod. A clamping bevel gear is arranged on one side of the anti-opening connection piece.

[0012] The beneficial effects of the present utility model are as follows:

[0013] (1) The present utility model makes improvements to the prior art. In actual use, through the needle holder length adjustment component, not only the problems that the current laparoscopic needle holder has a relatively simple design, fewer degrees of freedom, so poor flexibility and cannot meet the surgical suture requirements of modern laparoscopic fine operations are solved, but also the situation that the needle holder is generally fixedly arranged and cannot be adjusted according to the user's wishes and needs to be improved is solved.

[0014] (2) In actual use, by setting the tension spring, the tension spring can generate a pulling force between the left clamping part rod and the right clamping part rod, so as to achieve the function of facilitating the auxiliary clamping of the suture needle. The anti-opening connection piece and the clamping bevel gear play the role of fixing the left clamping part rod and the right clamping part rod when the needle holder is not in use or when clamping the suture needle. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 is the main structural schematic diagram of a double-joint needle holder for auxiliary suture according to an embodiment of the present utility model;

[0017] Figure 2 is the three-dimensional view of a double-joint needle holder for auxiliary suture according to an embodiment of the present utility model.

[0018] Figure 3It is a schematic structural diagram of a double-joint needle holder for assisting suture according to an embodiment of the present invention;

[0019] Figure 4 It is a schematic structural diagram of a double-joint needle holder for assisting suture according to an embodiment of the present invention.

[0020] In the figure:

[0021] 1. Left pliers part rod; 2. Right pliers part rod; 3. Needle holder length adjustment component; 301. Adjustment installation groove; 302. Friction layer; 303. Friction block; 304. Sliding rod; 305. Sliding limit head; 306. Sliding limit groove; 307. Sealing ring; 4. Pliers part movable installation component; 401. Left pliers head; 402. Right pliers head; 403. Movable connection groove; 404. Movable rotating shaft; 5. Elastic auxiliary clamping component; 501. Tensile spring; 502. Anti-opening connecting piece; 503. Engaging bevel gear; 6. Ventilation groove; 7. Needle holding teeth; 8. Grasping handle; 9. Rubber sleeve. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] According to an embodiment of the present invention, a double-joint needle holder for assisting suture is provided, including a left pliers part rod 1 and a right pliers part rod 2. A needle holder length adjustment component 3 is provided inside the left pliers part rod 1 and the right pliers part rod 2. A pliers part movable installation component 4 is provided on one side of the needle holder length adjustment component 3, and an elastic auxiliary clamping component 5 is provided on one side of the pliers part movable installation component 4.

[0024] As Figures 1-4 shown, for the double-joint needle holder for assisting suture according to an embodiment of the present invention, the needle holder length adjustment component 3 includes an adjustment installation groove 301. The adjustment installation groove 301 is respectively installed inside the left pliers part rod 1 and the right pliers part rod 2. The inner wall of the adjustment installation groove 301 is connected with a friction layer 302. A friction block 303 is provided inside the adjustment installation groove 301. A sliding rod 304 is connected to the middle of the friction block 303. A sliding limit head 305 is provided on one side of the adjustment installation groove 301. A sliding limit groove 306 is opened inside the sliding limit head 305. The sliding rod 304 and the sliding limit groove 306 are slidably and sealingly matched through a sealing ring 307. Ventilation grooves 6 are opened inside the left pliers part rod 1 and the right pliers part rod 2.

[0025] Through the above technical solution, when it is necessary to adjust the length of the needle holder, the movable mounting component 4 of the pliers part is pushed. At this time, the movable mounting component 4 of the pliers part can drive the sliding rod 304 to move. When the sliding rod 304 moves, it can drive the sliding limit head 305 to move along the friction layer 302 in the adjustment mounting groove 301. At the same time, the friction layer 302 has a damping effect on the sliding limit head 305, so that after the length is adjusted, the sliding rod 304 is not easy to move. At the same time, the sliding limit groove 306 and the sealing ring 307 in the sliding limit head 305 play a role in sealing and limiting the sliding rod 304. By setting the ventilation groove 6, the function of facilitating the movement and ventilation of the friction block 303 is achieved.

[0026] As Figures 1-4 shown, for the double-joint needle holder for auxiliary suture according to the embodiment of the present invention, the movable mounting component 4 of the pliers part includes a left pliers head 401 and a right pliers head 402. The left pliers head 401 and the right pliers head 402 are respectively connected to the left pliers part rod 1 and the right pliers part rod 2. An activity connection groove 403 is opened inside the right pliers head 402, and an activity rotating shaft 404 is installed inside the activity connection groove 403. Holding needles teeth 7 are respectively installed on one side of the left pliers head 401 and the right pliers head 402. Holding handles 8 are respectively connected to one side of the left pliers part rod 1 and the right pliers part rod 2. A rubber sleeve 9 is sleeved on the periphery of the holding handle 8.

[0027] Through the above technical solution, by setting the left pliers head 401 and the right pliers head 402, when the user drives the left pliers part rod 1 and the right pliers part rod 2 to move through the holding handle 8, the left pliers head 401 and the right pliers head 402 are driven to move with the activity rotating shaft 404 in the activity connection groove 403 as the fulcrum. After that, the left pliers head 401 and the right pliers head 402 can clamp the suture needle through the holding needles teeth 7. By setting the rubber sleeve 9, the function of facilitating the user to hold the holding handle 8 is achieved.

[0028] As Figures 1-4 shown, for the double-joint needle holder for auxiliary suture according to the embodiment of the present invention, the elastic auxiliary clamping component 5 includes a tension spring 501. The two ends of the tension spring 501 are respectively connected to the left pliers part rod 1 and the right pliers part rod 2. An anti-opening connection piece 502 is connected to one side of the left pliers part rod 1 and the right pliers part rod 2. A clamping bevel gear 503 is arranged on one side of the anti-opening connection piece 502.

[0029] Through the above technical solution, by setting the tension spring 501, the tension spring 501 can generate a pulling force between the left pliers part rod 1 and the right pliers part rod 2, so as to achieve the function of facilitating the auxiliary clamping of the suture needle. The anti-opening connection piece 502 and the clamping bevel gear 503 play the role of fixing the left pliers part rod 1 and the right pliers part rod 2 when the needle holder is not in use or when clamping the suture needle.

[0030] To facilitate the understanding of the above technical solution of the present utility model, the working principle or operation mode of the present utility model in the actual process will be described in detail below.

[0031] In summary, by means of the above technical solution of the present utility model, when it is necessary to adjust the length of the needle holder, the jaw portion movable mounting assembly 4 is pushed. At this time, the jaw portion movable mounting assembly 4 can drive the sliding rod 304 to move. When the sliding rod 304 moves, it can drive the sliding limit head 305 to move along the friction layer 302 in the adjustment mounting groove 301. At the same time, the friction layer 302 has a damping effect on the sliding limit head 305, so that after the length is adjusted, the sliding rod 304 is not easy to move. At the same time, the sliding limit groove 306 and the sealing ring 307 in the sliding limit head 305 are used to seal and limit the sliding rod 304. By providing the ventilation groove 6, the function of facilitating the movement and ventilation of the friction block 303 is achieved.

[0032] By providing the left jaw head 401 and the right jaw head 402, when the user drives the left jaw portion rod 1 and the right jaw portion rod 2 to move by holding the handle 8, the left jaw head 401 and the right jaw head 402 can be driven to move with the movable rotating shaft 404 in the movable connection groove 403 as the fulcrum. After that, the left jaw head 401 and the right jaw head 402 can clamp the suture needle through the needle holding teeth 7. By providing the rubber sleeve 9, the function of facilitating the user to hold the handle 8 is achieved.

[0033] By providing the tension spring 501, the tension spring 501 can generate a tension between the left jaw portion rod 1 and the right jaw portion rod 2, so as to achieve the function of facilitating the auxiliary clamping of the suture needle. The anti-opening connecting piece 502 and the engaging bevel gear 503 are used to fix the left jaw portion rod 1 and the right jaw portion rod 2 when the needle holder is not in use or when clamping the suture needle.

[0034] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A double-jointed needle holding forceps for assisting suturing, characterized in that: The invention comprises a left jaw rod (1) and a right jaw rod (2), wherein a needle holding forceps length adjustment component (3) is provided inside the left jaw rod (1) and the right jaw rod (2), a jaw movable mounting component (4) is provided on one side of the needle holding forceps length adjustment component (3), and an elastic auxiliary clamping component (5) is provided on one side of the jaw movable mounting component (4); The needle holding forceps length adjustment assembly (3) comprises an adjustment installation groove (301), wherein the left jaw rod (1) and the right jaw rod (2) are respectively installed inside the adjustment installation groove (301), the inner wall of the adjustment installation groove (301) is connected with a friction layer (302), a friction block (303) is arranged inside the adjustment installation groove (301), a sliding rod (304) is connected to the middle of the friction block (303), a sliding limit head (305) is arranged on one side of the adjustment installation groove (301), a sliding limit groove (306) is opened inside the sliding limit head (305), and the sliding rod (304) and the sliding limit groove (306) are slidably sealed and matched via a sealing ring (307).

2. A double-jointed needle holding forceps for auxiliary suturing according to claim 1, characterized in that: The left jaw rod (1) and the right jaw rod (2) are provided with ventilation grooves (6) inside.

3. A double-jointed needle holding forceps for auxiliary suturing according to claim 2, characterized in that: The movable jaw assembly (4) comprises a left jaw head (401) and a right jaw head (402), wherein the left jaw head (401) and the right jaw head (402) are respectively connected to a left jaw rod (1) and a right jaw rod (2), and a movable connecting groove (403) is provided inside the right jaw head (402), and a movable rotating shaft (404) is installed inside the movable connecting groove (403).

4. A double-jointed needle holding forceps for auxiliary suturing according to claim 3, characterized in that: One side of the left clamp head (401) and the right clamp head (402) is respectively provided with needle holding teeth (7).

5. The double-jointed needle holding forceps for auxiliary suturing according to claim 3, characterized in that: One side of the left jaw rod (1) and the right jaw rod (2) is respectively connected to a holding handle (8).

6. A double-jointed needle holding forceps for auxiliary suturing according to claim 5, characterized in that: The outer periphery of the handle (8) is covered with a rubber sleeve (9).

7. A double-jointed needle holding forceps for auxiliary suturing according to claim 6, characterized in that: The elastic auxiliary clamping assembly (5) comprises a tension spring (501), the two ends of which are respectively connected to the left jaw rod (1) and the right jaw rod (2), one side of the left jaw rod (1) and the right jaw rod (2) are connected to an anti-opening connecting piece (502), and one side of the anti-opening connecting piece (502) is provided with a locking bevel tooth (503).

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