Operating forceps for minimally invasive gynecological tumor surgery

Abstract

The invention belongs to the field of operating forceps, and particularly relates to operating forceps for minimally invasive gynecological tumor surgery. The tissue forceps comprise a tissue forceps body, the tissue forceps body is composed of a forceps head, a connecting rod, a forceps handle and a locking piece, the forceps head is composed of a first connecting block and a plurality of second connecting blocks, the first connecting block is located on the tops of the second connecting blocks, and an adjusting assembly is arranged on the clamping face of the second connecting block on one side. Through the arrangement of the adjusting assembly, medical workers with different technologies can conveniently and well use the device, so that the operation efficiency is higher, and the working pressure of the medical workers is reduced; and through the detachable connection arrangement of the first connecting block and the second connecting block, whether the second connecting block with the adjusting assembly is added or not can be conveniently selected according to different abilities of users and different use scenes, so that the adaptability is improved, meanwhile, independent replacement can be conducted according to the abrasion condition, the service life is prolonged, and the use cost is reduced.

Description

Technical Field

[0001] The invention belongs to the field of surgical forceps, and in particular relates to a surgical forceps used for minimally invasive gynecological tumor surgery. Background Art

[0002] Tissue forceps is an important surgical instrument used in gynecological tumor surgery. It is mainly used to clamp, fix and remove tumor tissue, as well as handle other soft tissues during the operation. During the use of tissue forceps, if the operation is improper, the clamping force is too large, the clamping time is too long or the clamping position is inaccurate, it may cause mechanical damage such as tearing or bleeding to the surrounding tissues. This damage will not only increase the patient's pain, but also may affect the surgical effect and postoperative recovery. During the operation, if the doctor does not accurately position the tissue forceps, it may accidentally clamp non-target tissues and cause unnecessary damage. This requires the doctor to have a high degree of concentration and precise operating skills during the operation, which makes it slow for new doctors to get started, and to a certain extent further increases the work pressure of experienced medical staff. Summary of the invention

[0003] The purpose of the present invention is to provide a surgical forceps for minimally invasive gynecological tumor surgery, which is convenient for avoiding mechanical damage to tissues caused by inaccurate clamping positions.

[0004] The surgical forceps for minimally invasive gynecological tumor surgery include a tissue forceps body, which is composed of a forceps head, a connecting rod, a forceps handle and a locking piece. The forceps head is composed of a first connecting block and a plurality of second connecting blocks. The first connecting block is located on the top of the second connecting block and is detachably connected thereto, and the clamping surface of the second connecting block on one side is provided with an adjustment component for determining the clamping position.

[0005] Furthermore, the adjustment component includes a clamping plate, a groove is provided on the clamping surface of the second connecting block, a fixing plate is horizontally fixed in the groove, at least two first through holes are provided on the fixing plate, guide rods are independently installed in the first through holes, the outer ends of the guide rods are fixed to the bottom of the clamping plate, the movable end of the guide rod is provided with a limiting plate for preventing it from falling off from the first through hole, and a first spring is mounted on the guide rod between the fixing plate and the clamping plate, and when the limiting plate is tightly fitted with the bottom of the groove, the clamping surface of the clamping plate is flush with the clamping surface of the second connecting block.

[0006] Furthermore, a slot for inserting a limiting plate is provided at the bottom of the groove.

[0007] Furthermore, the first connecting block is in an "L"-shaped structure as a whole, and the clamping surfaces of the first connecting block and the second connecting block are both provided with tooth grooves for fixing tissues.

[0008] Furthermore, the locking member includes a fixed block, which has an overall arc-shaped structure and a tooth groove on the top of the fixed block. A through groove is provided on the clamp handle for the fixed block to pass through, a gear meshing with the top of the fixed block is provided in the through groove, and a locking assembly for controlling the one-way rotation of the gear is provided on the outside of the clamp handle.

[0009] Furthermore, the locking assembly includes a circular ring, on which are arranged three ratchets that swing up and down, a ratchet that rotates unidirectionally with the ratchet is arranged inside the ratchet, and the outer diameter of the ratchet is smaller than the inner diameter of the circular ring, a connecting rod is fixed at the center of the ratchet, a second through hole for the connecting rod to pass through is opened on the pliers handle, and the connecting rod and the second through hole are connected by a micro bearing so as to rotate freely, the movable end of the connecting rod passes through the second through hole and is connected to the gear, and a control assembly for disengaging the ratchet from the ratchet is arranged on the circular ring.

[0010] Furthermore, the control component includes a fixed rod, a third through hole is formed on the ratchet for the fixed rod to pass through, a fourth through hole is formed on the circular ring for the fixed rod to pass through, the movable end of the fixed rod passes through the fourth through hole and is fixed to the wall of the clamp handle, a block is provided on the fixed rod located outside the third through hole for preventing it from falling off the fixed rod, a second spring is mounted on the fixed rod between the block and the ratchet, and a sleeve is provided on the circular ring for driving the circular ring to move back and forth.

[0011] Furthermore, the control component includes a fixed rod, a third through hole is formed on the ratchet for the fixed rod to pass through, a channel is formed on the ring for the ratchet to pass through, a fourth through hole is formed on the ring for the fixed rod to pass through, the movable end of the fixed rod passes through the fourth through hole and is fixed to the wall of the clamp handle, a block is provided on the fixed rod located outside the third through hole to prevent it from falling off the fixed rod, a second spring is mounted on the fixed rod between the block and the ratchet, a sleeve is provided on the ring for driving the ring to move back and forth, a limiting groove is formed on the outer wall of the clamp handle in an interference fit with the ring, and the thickness of the ratchet is equal to or less than the depth of the limiting groove.

[0012] Furthermore, the sleeve is threadedly matched with the circular ring, and the outer side wall of the movable end of the sleeve is provided with a curling edge for easy handholding.

[0013] Furthermore, the upper and lower ends of the outer side wall of the clamping plate are both arc-shaped structures.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention facilitates the use of the device by medical personnel with different skills through the setting of the adjustment component, thereby improving the surgical efficiency and reducing the work pressure of the medical personnel. At the same time, it can also effectively reduce the probability of mechanical damage to the patient's tissue during the operation. The detachable connection setting of the first connecting block and the second connecting block facilitates the selection of whether to add the second connecting block with the adjustment component according to the different abilities of the users and the different usage scenarios, thereby improving the applicability. At the same time, it can also be replaced separately according to the wear conditions, thereby increasing the service life and reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0019] Figure 4 for Figure 1 Front view;

[0020] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0021] Figure 6 It is a schematic diagram of the locking assembly structure;

[0022] Figure 7 for Figure 6 Enlarged view of point D in the middle;

[0023] The names of the components in the figure are: 1. tissue forceps body; 2. first connecting block; 3. second connecting block; 4. fixing block; 5. clamp; 6. first spring; 7. fixing plate; 8. guide rod; 9. gear; 10. sleeve; 11. ring; 12. ratchet; 13. ratchet; 14. connecting rod; 15. miniature bearing; 16. stopper; 17. second spring; 18. fixing rod. DETAILED DESCRIPTION

[0024] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0025] Example 1

[0026] The surgical forceps for minimally invasive gynecological tumor surgery described in this embodiment are as follows: Figure 1As shown, the tissue forceps body 1 is composed of a forceps head, a connecting rod, a forceps handle and a locking piece. The forceps head is composed of a first connecting block 2 and a plurality of second connecting blocks 3. The first connecting block 2 is located on the top of the second connecting block 3 and is detachably connected thereto. The clamping surface of the second connecting block 3 on one side is provided with an adjustment component for determining the clamping position, so that it is convenient to choose whether to add the second connecting block 3 according to different users and scenes, thereby improving the applicability, so that medical staff with different skills can use it better, making the operation more efficient, and reducing the probability of causing harm to the patient during the operation;

[0027] The second connecting block 3 is in a cylindrical structure as a whole, and a screw is fixed at one end thereof, and a threaded hole threadedly matched with the screw is opened at the other end, so as to facilitate splicing and replacement;

[0028] The second connecting blocks 3 are provided in a plurality of pieces, so that different numbers of the second connecting blocks 3 can be selected according to the use requirements, thereby facilitating the improvement of the application range. The number of the second connecting blocks 3 with the adjustment components can also be adjusted according to the size of the clamped tissue to improve the clamping effect.

[0029] The second connecting block 3 can be a cylindrical structure or a truncated cone structure, and the contact end diameters of the first connecting block 2 and the second connecting block 3 are the same, which is convenient for increasing the length and reducing the thickness, thereby further improving the applicability and clamping effect.

[0030] like Figure 2 As shown, the adjustment component includes a clamping plate 5, a groove is provided on the clamping surface of the second connecting block 3, a fixing plate 7 is horizontally fixed in the groove, at least two first through holes are provided on the fixing plate 7, and guide rods 8 are independently installed in the first through holes. The outer ends of the guide rods 8 are fixed to the bottom of the clamping plate 5, and the movable ends of the guide rods 8 are provided with limit plates for preventing them from falling off from the first through holes. A first spring 6 is sleeved on the guide rods 8 between the fixing plate 7 and the clamping plate 5, so as to facilitate clamping after the clamping position is determined by the clamping plate 5, thereby reducing the error rate of the operation and thus reducing the damage to the tissue, making the operation more efficient and reducing the work pressure of medical staff.

[0031] When the limit plate is tightly fitted with the bottom of the groove, the clamping surface of the clamping plate 5 is flush with the clamping surface of the second connecting block 3, which is convenient for determining the clamping position while maintaining consistency when the clamping is completed, thereby reducing the difficulty of operation, improving efficiency and ensuring the quality of operation;

[0032] The adjusting component may further include a clamping plate, a mounting groove is provided on the side wall of the second connecting block 3, at least two blind holes are provided in the mounting groove, a connecting rod is independently installed in the blind hole, the top end of the connecting rod is fixed to the bottom of the clamping plate, and a third spring is mounted on the connecting rod between the bottom of the mounting groove and the clamping plate, one end of the third spring is fixed to the bottom of the clamping plate, and the other end is fixed to the bottom of the mounting groove. When the third spring is compressed to a tight fit, the outer wall of the clamping plate is flush with the outer wall of the second connecting block 3, so that the clamping position is determined by the clamping plate before clamping, thereby reducing the error rate of operation and thus reducing damage to tissues, making the operation more efficient and reducing the work pressure of medical staff.

[0033] The bottom of the groove is provided with a slot for inserting the limit plate, so as to reduce the shaking amplitude of the splint 5 during the contraction process when clamping the tissue, thereby increasing the stability of the splint 5, improving the clamping effect and reducing the probability of operating errors;

[0034] The limiting plate and the corresponding slots are both rectangular structures, which further improves stability.

[0035] The first connecting block 2 is in an "L"-shaped structure as a whole, and the clamping surfaces of the first connecting block 2 and the second connecting block 3 are both provided with tooth grooves for fixing tissues, so as to increase the stability of clamping;

[0036] In actual use, the first connecting block 2 can be replaced by manufacturing different shapes to make it more applicable.

[0037] The locking member includes a fixing block 4, which has an overall arc-shaped structure and a tooth groove on the top of the fixing block 4. A through groove is provided on the clamp handle for the fixing block 4 to pass through, and a gear 9 meshing with the top of the fixing block 4 is provided in the through groove. A locking assembly for controlling the unidirectional rotation of the gear 9 is provided on the outer side of the clamp handle, so that the clamp handle can be locked while clamping the tissue through the clamp head, thereby improving the clamping effect and preventing the clamp handle from falling off due to excessive gap between the clamp head and the tissue during the locking process.

[0038] like Figure 5 good Figure 6As shown, the locking assembly includes a ring 11, on which three ratchet teeth 12 are arranged to swing up and down, a ratchet wheel 13 is arranged inside the ratchet teeth 12 and rotates unidirectionally with the ratchet wheels 12, and the outer diameter of the ratchet wheel 13 is smaller than the inner diameter of the ring 11, a connecting rod 14 is fixed to the center of the ratchet wheel 13, a second through hole for the connecting rod 14 to pass through is opened on the pliers handle, and the connecting rod 14 and the second through hole are connected to each other through a miniature bearing 15 to rotate freely, the movable end of the connecting rod 14 passes through the second through hole and is connected to the gear 9, and a connecting rod 14 is arranged on the ring 11 for making The control component that disengages the ratchet 12 from the ratchet 13 makes it easy for the fixed block 4 to drive the gear 9 to rotate when the forceps handle is closed. The gear 9 drives the ratchet 13 to rotate in the ratchet 12 through the connecting rod 14. After clamping the tissue, the fixed block 4 stops moving. After the fixed block 4 stops moving, it will drive the ratchet 13 to rotate slightly in the reverse direction in the ratchet 12, so that the position of the ratchet 13 is stuck through the ratchet 12, and then the position of the fixed block 4 is fixed to complete the clamping and fixation of the tissue, so that the locking is completed while the tissue clamping is completed, which makes the efficiency higher.

[0039] like Figure 6 and Figure 7 As shown, the control assembly includes a fixed rod 18, a third through hole for the fixed rod 18 to pass through is formed on the ratchet 12, a fourth through hole for the fixed rod 18 to pass through is formed on the ring 11, a movable end of the fixed rod 18 passes through the fourth through hole and is fixed to the wall of the pliers handle, a stopper 16 for preventing the fixed rod 18 from falling off is provided on the fixed rod 18 located outside the third through hole, a second spring 17 is sleeved on the fixed rod 18 between the stopper 16 and the ratchet 12, a sleeve 10 for driving the ring 11 to move forward and backward is provided on the ring 11, so that the ring 11 and the ratchet 12 arranged above it can be driven to move forward and backward by moving the sleeve 10, thereby completing the conversion of the locking of the free opening and closing of the pliers handle by changing the connection state of the ratchet 12 and the ratchet wheel 13;

[0040] Working principle: when clamping the tissue, first pull the sleeve 10, and the sleeve 10 drives the ring 11 and the ratchet 12 on the ring 11 to move outward, so that the ratchet 13 is disengaged from the ratchet 12. At this time, the gear 9 and the ratchet 13 can rotate freely, so that the clamp handle can be opened and closed freely. When the clamping is completed, release the sleeve 10, and the ring 11 is reset and fits the clamp handle under the drive of the second spring 17, and the ratchet 13 is inserted into the ratchet 12. The ratchet 12 restricts the ratchet 13, so that the gear 9 cannot rotate in the opposite direction, so that the position of the fixing block 4 is fixed by the gear 9, so that the clamp head completes the clamping and fixing of the tissue. When it needs to be loosened, pull the sleeve 10 again to disengage the ratchet 12 and the ratchet 13.

[0041] The sleeve 10 is threadedly matched with the ring 11, and the outer side wall of the movable end of the sleeve 10 is provided with a curling edge for easy holding, so as to facilitate replacement and cleaning. The setting of the curling edge makes it easy for medical staff to pull the sleeve 10 to avoid hand slipping during operation.

[0042] The upper and lower ends of the outer side wall of the clamping plate 5 are both in arc-shaped structures, so as to avoid damage to the tissue during clamping;

[0043] A film is provided at the gap between the clamping plate 5 and the groove to seal the gap, and the film is made of elastic material.

[0044] Example 2

[0045] The present embodiment further illustrates the technology, wherein the control assembly comprises a fixed rod 18, a third through hole for the fixed rod 18 to pass through is provided on the ratchet 12, a passage for the ratchet 13 to pass through is provided on the ring 11, a fourth through hole for the fixed rod 18 to pass through is provided on the ring 11, a movable end of the fixed rod 18 passes through the fourth through hole and is fixed to the wall of the pliers handle, a stopper 16 for preventing the fixed rod 18 from falling off is provided on the fixed rod 18 located outside the third through hole, a second spring 17 is sleeved on the fixed rod 18 between the stopper 16 and the ratchet 12, a sleeve 10 for driving the ring 11 to move forward and backward is provided on the ring 11, a limiting groove which is interference fit with the ring 11 is provided on the outer wall of the pliers handle, and the thickness of the ratchet 13 is equal to or less than the depth of the limiting groove, so that the ring 11 and the ratchet 12 arranged above it can be driven to move forward and backward by the movable sleeve 10, thereby completing the locking conversion of the free opening and closing of the pliers handle by changing the connection state of the ratchet 12 and the ratchet 13;

[0046] Working principle: when clamping the tissue, first press the ring 11 to get it into the limiting groove, so that the ratchet 13 is disengaged from the ratchet teeth 12. At this time, the gear 9 and the ratchet 13 can rotate freely, so that the clamp handle can be opened and closed freely. When the clamping is completed, pull the sleeve 10 to make the ring 11 disengage from the limiting groove, and under the drive of the second spring 17, the ratchet 13 is inserted into the ratchet teeth 12 for cooperation. The ratchet teeth 12 limit the ratchet 13, so that the gear 9 cannot rotate in the opposite direction, so that the position of the fixing block 4 is fixed by the gear 9, so that the clamp head completes the clamping and fixing of the tissue. When it needs to be loosened, press the sleeve 10 again to make the ring 11 fit into the limiting groove.

Claims

1. A surgical forceps for minimally invasive gynecological tumor surgery, comprising a tissue forceps body (1), the tissue forceps body (1) consisting of a forceps head, a connecting rod, a forceps handle and a locking member, characterized in that: The pliers head is composed of a first connecting block (2) and a plurality of second connecting blocks (3); the first connecting block (2) is located on top of the second connecting block (3) and is detachably connected thereto; a clamping surface of the second connecting block (3) on one side is provided with an adjustment component for determining a clamping position.

2. The surgical forceps for minimally invasive gynecological tumor surgery according to claim 1, characterized in that: The adjustment component comprises a clamping plate (5), a clamping surface of the second connecting block (3) is provided with a groove, a fixing plate (7) is horizontally fixed in the groove, at least two first through holes are provided on the fixing plate (7), and guide rods (8) are independently installed in the first through holes, the outer ends of the guide rods (8) are fixed to the bottom of the clamping plate (5), and the movable ends of the guide rods (8) are provided with a limiting plate for preventing the guide rods (8) from falling out of the first through holes, and a first spring (6) is sleeved on the guide rods (8) between the fixing plate (7) and the clamping plate (5), and when the limiting plate is tightly fitted with the bottom of the groove, the clamping surface of the clamping plate (5) is flush with the clamping surface of the second connecting block (3).

3. The surgical forceps for minimally invasive gynecological tumor surgery according to claim 2, characterized in that: A slot for inserting the limiting plate is provided at the bottom of the groove.

4. The surgical forceps for minimally invasive gynecological tumor surgery according to claim 2, characterized in that: The first connecting block (2) is in an "L"-shaped structure as a whole, and the clamping surfaces of the first connecting block (2) and the second connecting block (3) are both provided with tooth grooves for fixing tissues.

5. The surgical forceps for minimally invasive gynecological tumor surgery according to claim 1, characterized in that: The locking member comprises a fixed block (4), the fixed block (4) having an overall arc-shaped structure, a tooth groove being provided on the top of the fixed block (4), a through groove being provided on the clamp handle for the fixed block (4) to pass through, a gear (9) being provided in the through groove and meshing with the top of the fixed block (4), and a locking assembly for controlling the one-way rotation of the gear (9) being provided on the outer side of the clamp handle.

6. The surgical forceps for minimally invasive gynecological tumor surgery according to claim 5, characterized in that: The locking assembly comprises a circular ring (11), on which three ratchets (12) are arranged to swing up and down, a ratchet (13) is arranged inside the ratchet (12) and rotates unidirectionally with the ratchet, and the outer diameter of the ratchet (13) is smaller than the inner diameter of the circular ring (11), a connecting rod (14) is fixed at the center of the ratchet (13), a second through hole for the connecting rod (14) to pass through is opened on the clamp handle, and the connecting rod (14) and the second through hole are connected to rotate freely via a micro bearing (15), the movable end of the connecting rod (14) passes through the second through hole and is connected to the gear (9), and a control assembly for disengaging the ratchet (12) from the ratchet (13) is arranged on the circular ring (11).

7. The surgical forceps for minimally invasive gynecological tumor surgery according to claim 6, characterized in that: The control assembly comprises a fixed rod (18), a third through hole for the fixed rod (18) to pass through is formed on the ratchet (12), a fourth through hole for the fixed rod (18) to pass through is formed on the circular ring (11), a movable end of the fixed rod (18) passes through the fourth through hole and is fixed to the wall of the clamp handle, a stopper (16) for preventing the fixed rod (18) from falling off is provided on the fixed rod (18) located outside the third through hole, a second spring (17) is sleeved on the fixed rod (18) between the stopper (16) and the ratchet (12), and a sleeve (10) for driving the circular ring (11) to move forward and backward is provided on the circular ring (11).

8. The surgical forceps for minimally invasive gynecological tumor surgery according to claim 6, characterized in that: The control assembly comprises a fixed rod (18), a third through hole for the fixed rod (18) to pass through is formed on the ratchet (12), a passage for the ratchet (13) to pass through is formed on the circular ring (11), a fourth through hole for the fixed rod (18) to pass through is formed on the circular ring (11), a movable end of the fixed rod (18) passes through the fourth through hole and is fixed to the wall of the clamp handle, a stopper (16) for preventing the fixed rod (18) from falling off is formed on the fixed rod (18) located outside the third through hole, a second spring (17) is sleeved on the fixed rod (18) between the stopper (16) and the ratchet (12), a sleeve (10) for driving the circular ring (11) to move forward and backward is formed on the circular ring (11), a limiting groove which is interference fit with the circular ring (11) is formed on the outer wall of the clamp handle, and the thickness of the ratchet (13) is equal to or less than the depth of the limiting groove.

9. The surgical forceps for minimally invasive gynecological tumor surgery according to claim 7, characterized in that: The sleeve (10) and the ring (11) are threadedly matched, and the outer side wall of the movable end of the sleeve (10) is provided with a curling edge for easy handholding.

10. The surgical forceps for minimally invasive gynecological tumor surgery according to claim 2, characterized in that: The upper and lower ends of the outer side wall of the clamping plate (5) are both in arc-shaped structures.

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