CN211460395U

CN211460395U - Operating forceps

Info

Publication number: CN211460395U
Application number: CN201921901326.6U
Authority: CN
Inventors: 车璇; 朱巍立; 金小英; 林益琴; 方珊
Original assignee: Jiaxing Maternity and Child Health Care Hospital
Current assignee: Jiaxing Maternity and Child Health Care Hospital
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-09-11
Anticipated expiration: 2029-11-06

Abstract

The utility model belongs to the technical field of medical appliances, and discloses an operating clamp, which comprises a fixed handle, a movable handle, an outer clamping rod, an inner clamping rod, a fixed jaw and a movable jaw, wherein the movable handle is rotationally connected with the fixed handle, the inner clamping rod is sleeved in the outer clamping rod, one end of the inner clamping rod is circumferentially and rotationally connected with the movable handle, the other end of the inner clamping rod is connected with the movable jaw, one end of the outer clamping rod is circumferentially and rotationally connected with the fixed handle, the other end of the outer clamping rod is connected with the fixed jaw, and the movable jaw is hinged with the fixed jaw; the operating pliers further comprise an adjusting handle connected to the fixed handle in a rotating mode and a transmission assembly arranged in the fixed handle, the input end of the transmission assembly is connected with the adjusting handle, the output end of the transmission assembly is connected with the outer pliers rod, and the outer pliers rod rotates in the circumferential direction when the adjusting handle swings. The forceps head of the operation forceps can realize circumferential swinging at a certain angle, and the operability of the operation is improved.

Description

Operating forceps

Technical Field

The utility model relates to the technical field of medical appliances, especially, relate to an operating forceps.

Background

The minimally invasive surgery technology is a surgical operation technology for performing an operation in a human body by utilizing endoscopes such as a laparoscope, a thoracoscope and the like and other matched tools. The minimally invasive surgery has the advantages of small wound, less bleeding, light pain, quick recovery and the like. With the development of surgical techniques, minimally invasive surgery has been advanced into various fields of surgical operations, such as abdominal cavity, thoracic cavity, spinal surgery, orthopedics, joint surgery, and the like. The skin is reached to the focus part through a plurality of skin channels or tiny incisions, the surgical operation is performed under the direct vision by utilizing the optical fiber imaging technology, and the surgical channels are narrow, the incisions are only 0.5cm to 1cm, and higher requirements are provided for the design and the manufacture of surgical instruments.

In laparoscopic surgery, the bipolar coagulation forceps are commonly used operation forceps, and the bipolar coagulation forceps consist of a forceps head, a forceps rod, a forceps handle and a high-frequency cable, and are connected with a high-frequency generator by the high-frequency cable. When in use, the forceps head clamps the tissue of a patient, and the specific waveform and the specific load power sent by the high-frequency generator act on the surface of the tissue of the patient by virtue of the electrocoagulation forceps, so as to cauterize blood vessels and play a role in electrocoagulation hemostasis. The acting force is applied to the clamp handle, the torque is transmitted to the clamp head through the connection of the clamp handle and the clamp rod, and the movable head rotates along the axial direction of the push rod due to the connection of the push rod and the motion structure of the movable head, so that the clamping action is formed.

However, since the instrument acts deep into the abdominal cavity, the motion structure and the torque transmission mode of the instrument only act on the focus position in the axial direction of the operation channel, and the focus acting on the side position of the operation channel is difficult. The use of this type of surgical instrument places extremely high demands on the accuracy of establishing the surgical channel, increasing the difficulty and risk of the surgery.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an operating forceps, the binding clip can realize the rotation of certain angle, improves the maneuverability of operation.

To achieve the purpose, the utility model adopts the following technical proposal: an operating clamp comprises a fixed handle, a movable handle, an outer clamp rod, an inner clamp rod, a fixed clamp claw and a movable clamp claw, wherein the movable handle is rotatably connected to the fixed handle; the operating pliers further comprise an adjusting handle rotationally connected with the fixed handle and a transmission assembly arranged in the fixed handle, the input end of the transmission assembly is connected with the adjusting handle, the output end of the transmission assembly is connected with the outer pliers rod, and the outer pliers rod rotates in the circumferential direction when the adjusting handle swings.

Preferably, the transmission assembly comprises a first bevel gear, a rotating shaft and a second bevel gear, the first bevel gear is connected to the outside of the external clamp lever, the rotating shaft is rotatably connected to the fixed handle, one end of the rotating shaft is connected to the adjusting handle, the other end of the rotating shaft is connected to the second bevel gear, and the first bevel gear and the second bevel gear are in meshing transmission.

Preferably, a bearing is arranged between the outer clamping rod and the fixed handle, an outer ring of the bearing is connected to the fixed handle, and the outer clamping rod is connected to an inner ring of the bearing.

Preferably, the operating forceps further comprise an elastic piece, one end of the elastic piece is connected with the fixed handle, and the other end of the elastic piece is connected with the adjusting handle.

Preferably, the elastic member is a spring.

Preferably, the operating forceps further comprise a locking assembly connected between the fixed handle and the adjustment handle, the locking assembly being configured to lock the angle of the adjustment handle relative to the fixed handle.

Preferably, the locking component comprises a threaded rod and a nut, the threaded rod is connected to the fixed handle facing one side of the adjusting handle, the adjusting handle is provided with a strip-shaped hole, and the threaded rod penetrates through the strip-shaped hole and then is connected with the nut.

Preferably, the inner wall of the outer clamping bar is provided with a clamping groove along the axial direction, the periphery of the inner clamping bar is provided with a strip-shaped protrusion matched with the clamping groove along the axial direction, and the strip-shaped protrusion can slide along the length direction of the clamping groove.

Preferably, a steering connecting piece is arranged between the inner clamp rod and the movable handle, one end of the steering connecting piece is hinged to the movable handle, and the inner clamp rod is circumferentially and rotatably connected to the other end of the steering connecting piece.

Preferably, the end of the inner clamp rod is provided with a clamping block, the end of the steering connecting piece is provided with a clamping portion, and the clamping block is installed in the clamping portion and can rotate in the clamping portion.

The utility model has the advantages that: the utility model provides an operating clamp, this operating clamp is provided with to rotate and connects in fixed handle's adjustment handle and set up the transmission assembly in fixed handle, adjustment handle is connected to transmission assembly's input, outer tong bar is connected to transmission assembly's output, outer tong bar circumferential direction when the adjustment handle swings, when using, through stirring adjustment handle, can drive outer tong bar and rotate certain angle along circumference after the transmission of transmission assembly, because movable tong claw is articulated with fixed tong claw, when outer tong bar circumferential direction, fixed tong claw rotates along with outer tong bar, it rotates to drive movable tong claw simultaneously, movable tong claw drives movable tong bar and rotates. Therefore, when the adjusting handle is pulled, the outer clamp rod and the inner clamp rod can synchronously rotate, so that the angle of the clamp head is changed. When the operation forceps are used, the angle of the forceps head can be adaptively adjusted according to the focus on the side surface of the operation channel, the forceps head can circumferentially swing at a certain angle, and the operability of the operation is improved.

Drawings

Fig. 1 is a front view of an operating forceps provided by the present invention;

fig. 2 is a sectional view of the operating forceps provided by the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

FIG. 4 is a cross-sectional view of section A-A of FIG. 1;

fig. 5 is a front view of the operating forceps provided with the locking assembly according to the present invention.

In the figure: 1. fixing a handle; 2. a movable handle; 3. an outer nipper bar; 4. an inner nipper bar; 41. a clamping block; 5. fixing the clamp claws; 6. a movable jaw; 7. an adjusting handle; 8. a transmission assembly; 81. a first bevel gear; 82. a second bevel gear; 83. a rotating shaft; 9. a bearing; 10. an elastic member; 20. a locking assembly; 201. a threaded rod; 202. a nut; 30. a steering linkage; 301. a clamping part.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The embodiment provides an operating clamp, as shown in fig. 1-3, the operating clamp includes a fixed handle 1, a movable handle 2, an outer clamping bar 3, an inner clamping bar 4, a fixed jaw 5 and a movable jaw 6, the movable handle 2 is rotatably connected to the fixed handle 1, the inner clamping bar 4 is sleeved in the outer clamping bar 3, one end of the inner clamping bar 4 is circumferentially and rotatably connected to the movable handle 2, the other end of the inner clamping bar is connected to the movable jaw 6, one end of the outer clamping bar 3 is circumferentially and rotatably connected to the fixed handle 1, the other end of the outer clamping bar is connected to the fixed jaw 5, and the movable jaw 6 is hinged to the fixed jaw 5; the operation pincers are still including rotating the adjustment handle 7 of connecting in fixed handle 1 and set up the transmission assembly 8 in fixed handle 1, and adjustment handle 7 is connected to the input of transmission assembly 8, and outer nipper rod 3 is connected to the output of

transmission assembly

8, and 3 circumferential direction of outer nipper rod when adjustment handle 7 swings.

When the movable pliers are used, the thumb is used for controlling the movable pliers jaw 6, the forefinger is used for controlling the fixed pliers jaw 5, the movable pliers jaw 6 is driven to swing relative to the fixed pliers jaw 5, the movable pliers jaw 6 can drive the inner pliers rod 4 to stretch and retract along the outer pliers rod 3 when swinging, and therefore the movable pliers jaw 6 is driven to swing relative to the fixed pliers jaw 5, and the pliers head is opened and closed. When the operating pliers are used, the middle finger is used for shifting the adjusting handle 7, the outer plier rod 3 can be driven to rotate by a certain angle along the circumferential direction after transmission of the transmission assembly 8, and as the movable plier claw 6 is hinged with the fixed plier claw 5, when the outer plier rod 3 rotates in the circumferential direction, the fixed plier claw 5 rotates along with the outer plier rod 3, and meanwhile, the movable plier claw 6 drives the movable plier rod to rotate, and the movable plier claw 6 drives the movable plier rod to rotate. Therefore, when the adjusting handle 7 is pulled, the outer tong rod 3 and the inner tong rod 4 can synchronously rotate, so that the angle of the tong head is changed. When the operation forceps are used, the angle of the forceps head can be adaptively adjusted according to the focus on the side surface of the operation channel, the forceps head can circumferentially swing at a certain angle, and the operability of the operation is improved.

As shown in fig. 3 and 4, the transmission assembly 8 includes a first bevel gear 81, a rotating shaft 83 and a second bevel gear 82, the first bevel gear 81 is connected to the outside of the outer clamp lever 3, the rotating shaft 83 is rotatably connected to the fixed handle 1, one end of the rotating shaft 83 is connected to the adjusting handle 7, the other end is connected to the second bevel gear 82, and the first bevel gear 81 and the second bevel gear 82 are in mesh transmission. When the adjustment handle 7 swings relative to the fixed handle 1, the rotating shaft 83 rotates to drive the second bevel gear 82 to rotate, and the second bevel gear 82 is in meshing transmission with the first bevel gear 81 to convert the swing of the adjustment handle 7 into the rotation of the outer nipper rods 3.

In order to facilitate the rotation of the outer clamping rod 3, a bearing 9 is arranged between the outer clamping rod 3 and the fixed handle 1, the outer ring of the bearing 9 is connected to the fixed handle 1, and the outer clamping rod 3 is connected to the inner ring of the bearing 9. By arranging the bearing 9, the outer clamp rod 3 can rotate more smoothly, and the angle of the clamp head can be adjusted more conveniently.

In order to realize synchronous drive for the outer clamping rod 3 and the inner clamping rod 4, the inner wall of the outer clamping rod 3 is provided with a clamping groove along the axial direction, the periphery of the inner clamping rod 4 is provided with a bar-shaped bulge matched with the clamping groove along the axial direction, and the bar-shaped bulge can slide along the length direction of the clamping groove. Therefore, when the opening and closing of the binding clip are required to be realized, the inner binding clip 4 can slide in the outer binding clip 3, and at the moment, the strip-shaped protrusions slide along the length direction of the clamping grooves; when the binding clip rotates, the outer binding clip 3 is driven to rotate, and meanwhile, the clamping groove of the outer binding clip 3 is matched with the strip-shaped protrusion, so that the inner binding clip 4 and the outer binding clip 3 cannot rotate relatively, and therefore, the outer binding clip 3 can drive the inner binding clip 4 to rotate synchronously when rotating, and the rotation of the binding clip is realized. Through setting up draw-in groove and bar arch, can restrict the relative rotation of interior tong level 4 and outer tong level 3, nevertheless do not restrict relative slip between the two, be favorable to realizing synchronous drive between the two, stability when improving binding clip angular adjustment does not influence opening and shutting of binding clip simultaneously again.

A steering connecting piece 30 is arranged between the inner clamp rod 4 and the movable handle 2, one end of the steering connecting piece 30 is hinged to the movable handle 2, and the inner clamp rod 4 is circumferentially and rotatably connected to the other end of the steering connecting piece 30. When the movable handle 2 swings relative to the fixed handle 1, the inner clamp rod 4 can be driven to extend and retract through the transmission of the steering connecting piece 30. The tip of interior tong pole 4 is provided with joint piece 41, turns to the tip of connecting piece 30 and has seted up joint portion 301, and joint piece 41 is installed in joint portion 301 and can rotate in joint portion 301 for interior tong pole 4 has circumferential direction's degree of freedom.

The operating forceps further comprise an elastic piece 10, one end of the elastic piece 10 is connected with the fixed handle 1, and the other end of the elastic piece 10 is connected with the adjusting handle 7. By providing the elastic member 10, the elastic member 10 is compressed when a driving force is applied to the adjustment handle 7; when the driving force is not applied to the adjustment handle 7, the adjustment handle 7 returns to the initial position by the restoring force of the elastic member 10, thereby enabling the manipulation of the adjustment handle 7 to be facilitated. When the adjusting handle 7 is driven by the middle finger to be in a required position in use, one side of the adjusting handle 7 is pressed by the middle finger, and the other side of the adjusting handle 7 is elastically supported by the elastic piece 10, so that the adjusting handle 7 is conveniently kept in the required position. The elastic member 10 may be a spring.

As shown in fig. 5, the forceps further include a locking assembly 20, the locking assembly 20 being connected between the fixed handle 1 and the adjustment handle 7, the locking assembly 20 being configured to lock the angle of the adjustment handle 7 relative to the fixed handle 1. In normal use, the adjusting handle 7 is controlled to be at a required position only through the middle finger, the position of the adjusting handle 7 is kept through the balance between the middle finger and the elastic piece 10, and if the adjusting handle 7 needs to be kept at one position for a long time, the position of the adjusting handle 7 can be locked through the locking assembly 20. Specifically, locking Assembly 20 includes threaded rod 201 and nut 202, and threaded rod 201 is connected in the one side of fixed handle 1 towards adjustment handle 7, and adjustment handle 7 has seted up rectangular hole, and threaded rod 201 is connected with nut 202 after passing through rectangular hole. The position of the adjustment handle 7 can be restricted by adjusting the position of the nut 202 on the threaded rod 201, and the adjustment handle 7 can be held at the restricted position by the nut 202 on one side and the elastic support force of the elastic member 10 on the other side. When the elastic member 10 is a spring, the spring may be sleeved on the threaded rod 201.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The operating forceps are characterized by comprising a fixed handle (1), a movable handle (2), an outer forceps rod (3), an inner forceps rod (4), a fixed forceps jaw (5) and a movable forceps jaw (6), wherein the movable handle (2) is rotationally connected to the fixed handle (1), the inner forceps rod (4) is sleeved in the outer forceps rod (3), one end of the inner forceps rod (4) is circumferentially and rotatably connected with the movable handle (2), the other end of the inner forceps rod is connected with the movable forceps jaw (6), one end of the outer forceps rod (3) is circumferentially and rotatably connected with the fixed handle (1), the other end of the outer forceps rod is connected with the fixed forceps jaw (5), and the movable forceps jaw (6) is hinged to the fixed forceps jaw (5); the operating pliers further comprise an adjusting handle (7) rotatably connected to the fixed handle (1) and a transmission assembly (8) arranged in the fixed handle (1), the input end of the transmission assembly (8) is connected with the adjusting handle (7), the output end of the transmission assembly (8) is connected with the outer pliers rod (3), and the outer pliers rod (3) rotates in the circumferential direction when the adjusting handle (7) swings.

2. The operating forceps according to claim 1, wherein the transmission assembly (8) comprises a first bevel gear (81), a rotating shaft (83) and a second bevel gear (82), the first bevel gear (81) is connected to the outside of the outer forceps rod (3), the rotating shaft (83) is rotatably connected to the fixed handle (1), one end of the rotating shaft (83) is connected to the adjusting handle (7), the other end of the rotating shaft is connected to the second bevel gear (82), and the first bevel gear (81) and the second bevel gear (82) are in meshing transmission.

3. Operating forceps according to claim 1, characterized in that a bearing (9) is arranged between the outer forceps rod (3) and the stationary handle (1), the outer ring of the bearing (9) being connected to the stationary handle (1), and the outer forceps rod (3) being connected to the inner ring of the bearing (9).

4. Operating forceps according to claim 1, characterized in that the operating forceps further comprise an elastic element (10), one end of the elastic element (10) being connected to the fixed handle (1) and the other end of the elastic element (10) being connected to the adjusting handle (7).

5. Operating pliers according to claim 4, characterized in that the elastic element (10) is a spring.

6. Operating forceps according to claim 4, characterized in that the operating forceps further comprise a locking assembly (20), which locking assembly (20) is connected between the fixed handle (1) and the adjusting handle (7), which locking assembly (20) is configured to lock the angle of the adjusting handle (7) relative to the fixed handle (1).

7. The operating forceps according to claim 6, characterized in that the locking assembly (20) comprises a threaded rod (201) and a nut (202), the threaded rod (201) is connected to one side of the fixed handle (1) facing the adjusting handle (7), the adjusting handle (7) is provided with a strip-shaped hole, and the threaded rod (201) is connected with the nut (202) after passing through the strip-shaped hole.

8. The operating forceps according to claim 1, wherein the inner wall of the outer forceps rod (3) is provided with a clamping groove along the axial direction, the outer periphery of the inner forceps rod (4) is provided with a strip-shaped protrusion matched with the clamping groove along the axial direction, and the strip-shaped protrusion can slide along the length direction of the clamping groove.

9. Operating forceps according to claim 1, characterized in that a steering connecting piece (30) is arranged between the inner forceps rod (4) and the movable handle (2), one end of the steering connecting piece (30) is hinged to the movable handle (2), and the inner forceps rod (4) is connected to the other end of the steering connecting piece (30) in a circumferential direction in a rotatable manner.

10. The operating forceps according to claim 9, wherein the end of the inner forceps rod (4) is provided with a clamping block (41), the end of the steering connecting piece (30) is provided with a clamping portion (301), and the clamping block (41) is mounted in the clamping portion (301) and can rotate in the clamping portion (301).