Head bending type hemostatic clip applier

Abstract

The utility model discloses a hemostatic clip applier with a bent head, and belongs to the technical field of medical instruments. The defects that in the prior art, due to the fact that a traditional reed type handle structure is poor in holding hand feeling, the hand of an operator is easily clamped by mistake, great inconvenience is caused to clinical surgery operation, and medical risks are increased are overcome. The main body structure of the device comprises a tong head assembly, a push rod assembly, an outer pipe, a rotating wheel, a rotating mechanism, a spring, a rotating screw, a fixed handle and a movable handle hinged to the fixed handle, the tong head assembly is connected with the push rod assembly through a pin shaft, the tong head assembly is further connected with the outer pipe through a pin shaft, and the rotating wheel is connected with the outer pipe through a connecting sleeve. The rotating mechanism is connected with the fixed handle through welding, the end of the push rod assembly is connected with the rotating screw through threads, the push rod assembly is sleeved with the spring, and the shoulder of the movable handle abuts against the rotating screw. The utility model is mainly used for blocking tissues or blood vessels in the endoscopic surgery process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, concretely relates to a head curved type hemostasis clip applier. BACKGROUND

[0002] The prior art clip applier comprises a clip applier body and a titanium clip, and its use method is as follows: the clip applier head is inserted into the groove of the titanium clip box, the titanium clip is loaded into the head, and then the clip applier is withdrawn; when used, the clip applier is inserted into the trocar of a laparoscopic surgery, the blood vessel or tissue to be ligated is confirmed, the titanium clip is wrapped around the target tissue, the handle is pressed to close the titanium clip, and then the handle is loosened and withdrawn from the body. The titanium clip applier is mainly used for ligating blood vessels or tissues in surgeries and is widely used in laparoscopic surgeries, thoracoscopic surgeries and pelvic mirror surgeries.

[0003] The head end of the prior art clip applier and the titanium clip are designed in a straight type, which is not easy to operate when the blood vessel is blocked and the position is deviated, and the handle position angle needs to be adjusted greatly. The clip applier is easy to cause damage to the tissue or blood vessel when clamping, and is also easy to cause incomplete blood vessel blocking due to improper placement of the titanium clip. The handle part is designed with a spring sheet, the holding feeling is not good, the operator's hand is easy to be clamped by mistake due to operation errors, which causes great inconvenience to clinical operation and increases the occurrence of medical risks. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problems of the prior art and provides a head curved type hemostasis clip applier.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A head curved type hemostasis clip applier, comprising a head assembly, a push rod assembly, an outer tube, a rotating wheel, a rotating mechanism, a spring, a rotating screw, a fixed handle and a movable handle hingedly connected with the fixed handle, the head assembly is connected with the push rod assembly through a pin shaft, the head assembly is also connected with the outer tube through a pin shaft, the rotating wheel is connected with the outer tube through a connecting sleeve, the rotating mechanism is connected with the fixed handle through welding, the end of the push rod assembly is connected with the rotating screw through threads, the spring is sleeved on the push rod assembly, and the shoulder of the movable handle is in abutment with the rotating screw.

[0007] Preferably, a flushing connector is threadedly connected to one end of the rotating wheel, and the inner cavity of the flushing connector is in communication with the inner cavity of the outer tube.

[0008] Preferably, a sealing cap is mounted on the flushing connector, one end of the sealing cap is fixedly connected with the flushing connector, and the other end is connected with the flushing connector through plastic deformation buckling.

[0009] Preferably, a sealing ring is arranged between the rotating mechanism and the fixed handle to prevent air leakage.

[0010] Preferably, the fixed handle is hingedly connected with the movable handle through a gill shaft screw.

[0011] Preferably, the spring and the rotating screw are both mounted inside the fixed handle.

[0012] Preferably, the connecting sleeve is fixedly connected with the outer tube through welding.

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

[0014] 1. The threaded connection between the jaw assembly and the push rod assembly, and the pin shaft connection between the jaw assembly and the outer tube make the utility model flexible for bending operation, so as to adapt to the needs of different surgical sites, thereby improving the operation convenience and flexibility during the operation.

[0015] 2. The connection of the rotating mechanism and the fixed handle, and the hinge between the movable handle and the fixed handle enable the surgeon to accurately control the action of the jaw assembly through simple hand movements, thereby improving the precision of tissue handling during the operation.

[0016] 3. The spring design enables the instrument to automatically reset after the handle is released, thereby reducing the operation steps of the doctor and improving the work efficiency.

[0017] 4. The design of the irrigation connector allows irrigation during use, which helps to remove blood and other substances from the surgical area, keeps the field of view clear, and is conducive to smooth operation.

[0018] 5. The sealing ring helps to improve the overall sealing performance of the instrument, reduces the leakage of gas or liquid during the operation, and ensures the cleanliness and safety of the surgical environment.

[0019] In summary, the utility model cancels the traditional reed handle structure and changes it to a spring structure, which makes the operation more comfortable and does not misclip the operator's hand. At the same time, the clipper head and the titanium clip are changed to a curved structure, which is easier to find the appropriate angle for operation under the condition of a laparoscope, so that the bent titanium clip is clamped in the appropriate part of the tissue, which does not easily cause damage to the soft tissue in the patient's body, and makes the doctor's operation safer. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the utility model;

[0021] Figure 2 is a structural schematic view of the titanium clip installed and used in the utility model;

[0022] Figure 3 is another angle structure schematic view of the titanium clamp in the utility model.

[0023] In the figure: 1, jaw assembly; 2, push rod assembly; 3, outer tube; 4, pin shaft; 5, sealing cap; 6, flushing joint; 7, rotating wheel; 8, connecting sleeve; 9, rotating mechanism; 10, sealing ring; 11, spring; 12, rotating screw; 13, gill shaft screw; 14, fixed handle; 15, movable handle; 16, titanium clamp; 17, shoulder. DETAILED DESCRIPTION

[0024] The utility model will be further described below by specific embodiments and in conjunction with the drawings.

[0025] Example 1:

[0026] As Figure 1 shown, a head bending type hemostatic clip applier includes jaw assembly 1, push rod assembly 2, outer tube 3, rotating wheel 7, rotating mechanism 9, spring 11, rotating screw 12, fixed handle 14 and movable handle 15 hinged to fixed handle 14, jaw assembly 1 is connected with push rod assembly 2 through pin shaft 4, jaw assembly 1 is also connected with outer tube 3 through pin shaft 4, rotating wheel 7 is connected with outer tube 3 through connecting sleeve 8, rotating mechanism 9 is connected with fixed handle 14 through welding, the end of push rod assembly 2 is connected with rotating screw 12 through thread, spring 11 is sleeved on push rod assembly 2, and the shoulder 17 of movable handle 15 is in abutment with rotating screw 12.Specifically, fixed handle 14 is hinged to movable handle 15 through gill shaft screw 13, spring 11 and rotating screw 12 are all installed in the inside of fixed handle 14, connecting sleeve 8 is fixedly connected with outer tube 3 through welding; at the same time, rotating wheel 7 can rotate freely within 360 °, and positioning is reliable.

[0027] In use, since connecting sleeve 8 is fixedly connected with outer tube 3 through welding, the stability of the whole instrument structure is ensured, and problems such as loosening in use are avoided, so that the reliability and durability of the instrument are ensured.In use, in the state that the clip applier is not stressed, the jaw is aligned with titanium clamp 16 in the titanium clamp box, titanium clamp 16 is taken out, the clip applier is inserted into the trocar of laparoscopic surgery, then the tissue part or blood vessel to be acted on is found, the direction of the jaw can be adjusted through rotating wheel 7, the movable handle 15 is pushed to make rotating screw 12 move forward, push rod assembly 2 moves forward to make jaw assembly 1 close, so that titanium clamp 16 is clamped tightly; the opening of the jaw relies on spring 11 to exert reverse force on movable handle 15, so that rotating screw 12 pushes movable handle 15 to move backward, push rod assembly 2 moves backward to make jaw assembly 1 open.

[0028] Example 2:

[0029] A head bending type hemostatic clip applier, which is different from the embodiment 1 in that a flushing joint 6 is threadedly connected to one end of the rotating wheel 7, the inner cavity of the flushing joint 6 is communicated with the inner cavity of the outer tube 3, and a sealing cap 5 is installed on the flushing joint 6, one end of the sealing cap 5 is fixedly connected with the flushing joint 6, and the other end is connected with the flushing joint 6 through a plastic deformation buckle. When the push rod assembly 2 in the outer tube 3 needs to be flushed, the plastic deformation buckle of the sealing cap 5 is opened, and the push rod assembly 2 is flushed through water in the inner cavity of the flushing joint 6.

[0030] Further, a sealing ring 10 for preventing air leakage is arranged between the rotating mechanism 9 and the fixed handle 14. The sealing ring 10 is used to seal the rotating mechanism 9 to prevent air leakage. The rotating mechanism 9 is a conventional structure in the prior art, which will not be described here.

[0031] As shown in Figures 2-3 , the titanium clip 16 is a curved structure, and the clip applier head and the titanium clip 16 are both changed to a curved structure, which is easier to find a suitable angle for operation under the condition of a laparoscope, so that the curved titanium clip 16 is clamped at a suitable position of the tissue, and the damage to the soft tissue in the patient's body is reduced, so that the operation of the doctor is safer.

[0032] The working principle of the utility model is:

[0033] When the surgeon squeezes the movable handle 15, the force is transmitted to the fixed handle 14 through the hinge point, i.e. the gill shaft screw 13. Since the rotating screw 12 is threadedly connected with the end of the push rod assembly 2, and the shoulder 17 of the movable handle 15 abuts against the rotating screw 12, the movement of the movable handle 15 will drive the rotating screw 12 to move axially, and the axial movement of the rotating screw 12 will further drive the push rod assembly 2 to move axially. The axial movement of the push rod assembly 2 is further transmitted to the clamp head assembly 1 connected with the pin shaft 4, so that the clamp head assembly 1 closes and clamps the titanium clip 16. Since the clamp head assembly 1 is connected with the outer tube 3 through the pin shaft 4, when the rotating wheel 7 connected with the outer tube 3 is rotated, the clamp head assembly 1 rotates with the rotating wheel 7, so that it can realize the rotating and closing actions to clamp the titanium clip 16 on the target tissue, and achieve the purpose of hemostasis.

[0034] In this process, the spring 11 is sleeved on the push rod assembly 2 and located in the fixed handle 14. When the movable handle 15 is released, the elastic force of the spring 11 will make the push rod assembly 2 return to the original position, and the clamp head assembly 1 will no longer be stressed to return to the initial position, so that it can realize the opening action to release the titanium clip 16 clamped on the tissue.

[0035] In addition, if a flushing operation is required, a flushing liquid can be injected through the flushing joint 6 that is threadedly connected to one end of the rotating wheel 7. The inner cavity of the flushing joint 6 is in communication with the inner cavity of the outer tube 3, so that the flushing liquid can enter the inner part of the outer tube 3, thereby helping to remove the blood or other substances inside the instrument, and making the inside of the instrument clean and reducing the residue of harmful substances.

[0036] In order to ensure the sealing of the instrument during use, a sealing ring 10 is arranged between the rotating mechanism 9 and the fixed handle 14 to prevent gas or liquid leakage. At the same time, a sealing cap 5 can also be installed on the flushing joint 6 to further enhance the sealing effect.

Claims

1. A head-angled curved hemostatic clip applier, characterized by: The utility model relates to a kind of medical forceps, including jaw assembly (1), push rod assembly (2), outer tube (3), rotating wheel (7), rotating mechanism (9), spring (11), rotating screw (12), fixed handle (14) and articulated connection with fixed handle (14) movable handle (15), the jaw assembly (1) is connected with push rod assembly (2) by pin shaft (4), jaw assembly (1) is also connected with outer tube (3) by pin shaft (4), rotating wheel (7) is connected with outer tube (3) by connecting sleeve (8), rotating mechanism (9) is connected with fixed handle (14), the end of push rod assembly (2) is connected with rotating screw (12) by thread, spring (11) is sleeved on push rod assembly (2), and the shoulder (17) of movable handle (15) is in contact with rotating screw (12).

2. The head-angled, curved hemostatic clip applier of claim 1, wherein: One end of the rotating wheel (7) is threadedly connected with a flushing connector (6), and the inner cavity of the flushing connector (6) is in communication with the inner cavity of the outer tube (3).

3. The head-angled, curved hemostatic clip applier of claim 2, wherein: The flushing connector (6) is provided with a sealing cap (5).

4. The head-angled curved hemostatic clip applier of any of claims 1-3, wherein: A sealing ring (10) is arranged between the rotating mechanism (9) and the fixed handle (14) to prevent air leakage.

5. The head-angled curved hemostatic clip applier of any of claims 1-3, wherein: The fixed handle (14) is articulatedly connected with the movable handle (15) by a gill shaft screw (13).

6. The head-angled curved hemostatic clip applier of any of claims 1-3, wherein: The spring (11) and the rotating screw (12) are both installed inside the fixed handle (14).

7. The head-angled curved hemostatic clip applier of any of claims 1-3, wherein: The connecting sleeve (8) is fixedly connected with the outer tube (3) by welding.

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