WO2019242763A1

WO2019242763A1 - Continuous delivery clip applier and feeding device of continuous delivery clip applier

Info

Publication number: WO2019242763A1
Application number: PCT/CN2019/092377
Authority: WO
Inventors: 黄荣泉
Original assignee: 黄荣泉
Priority date: 2018-06-21
Filing date: 2019-06-21
Publication date: 2019-12-26
Also published as: CN112672700B; CN112672700A

Abstract

A continuous delivery clip applier and a feeding device thereof, the continuous delivery clip applier comprising a push handle (10), a tube rod (20), a clamp head (30) mounted at a front end of the tube rod (20), a push rod (12) driven by the push handle (10), a feeding device (40) and a storage compartment (50); the storage compartment (50) has a front end and rear end that are movably connected to the clamp head (30), and an end of the push rod (12) is connected to the push handle (10), while the other end is connected to the rear end of the storage compartment (50) and acts on the storage compartment (50) such that the clamp head (30) is opened or closed; the feeding device (40) comprises a transmission member (41) and a driving member (42) used for driving the transmission member (41), the storage compartment (50) is internally provided with a plurality of clips used for clamping blood vessels, and the transmission member (41) extends into the storage compartment (50) so as to push clips into the clamp head (30). Thus, multiple delivery or continuous delivery hemostatic clips may be simultaneously fed and clamped.

Description

Burst clamp and feeding device of burst clamp

Technical field

The invention relates to the technical field of medical instruments, and in particular to a continuous hair clip applier and a feeding device thereof.

Background technique

Clip clamp is a commonly used medical device. It is usually used in the operation of needle-hold suture to clamp blood vessels and play a hemostatic role, so it is sometimes called a hemostat. In medical surgery, especially in the case of minimally invasive techniques, when a patient is bleeding, after taking a hemostatic drug, the aorta of the blood vessel is clamped with clamps to prevent blood from flowing out. The principle of applying a clamp is the same as that of a clip, but it is disinfected. The clamps are divided into large, small, toothed, toothless, straight and curved. Choose different types of clamps according to different operating parts.

Because the clamp is used during the surgical operation, for example, to the potential bleeding site or the bleeding point that has been seen, first clamp. Therefore, it is required to be accurate in clamping the bleeding point, and it is best to succeed at one time, and not to bring too much into healthy tissue. Due to the narrow and complicated operation space of such minimally invasive surgery, the use of instruments is small and the accuracy is high. Therefore, the traditional technology is biased to improve the operation convenience, accuracy, and structure of the clamp.

For example, Chinese Patent Application No. 201711310132.4 discloses a minimally invasive hemostatic forceps that includes a fixed handle, a movable handle, a fixed forceps, and a movable forceps. The movable handle is connected to one end of a wire rope extending into the fixed handle through a driving connection piece. Drive connection. The other end of the wire rope is drive-connected with a moving tong which is rotationally connected to the fixed tong. The steel wire rope is connected with the sliding wire rope connecting rod located in the fixed handle. A tie rod pin at one end of the transmission connecting piece is locked on the steel rope connecting rod. The other end of the transmission connecting piece is rotatably connected with the moving handle, and the driving connecting piece is disposed between the moving connecting piece and the moving handle. There are torsion springs that make the tie rod pin clamp the wire rope connecting rod. In this patent application, it is pointed out that the hemostatic forceps are easy to disassemble and clean, easy to operate, and not cumbersome. The hemostatic forceps can be equipped with different types of jaws on a handle to meet the use of medical staff, and achieve a multi-purpose function Disassembly can also make the cleaning of the instrument more thorough, at the same time can also make it easier for medical staff to use, reliable and accurate clamping force adjustment, flexible control, thereby improving the efficiency of minimally invasive surgery.

However, whether it is the improved structure in the above patent application or the traditional hemostatic forceps structure, it is inevitable to encounter a realistic problem. That is, during the surgical operation, generally, not only one blood vessel needs to be clamped to stop bleeding, but there are two or three vessels, and even more blood vessels need to be clamped. However, the existing hemostats can only carry one plastic clip, and the clips are disposable. As in the structure disclosed in the aforementioned patent application, the clamp has a longer connecting rod. Therefore, it is obviously extremely unfavorable to extend into the patient's body with such a long clip when each operation is used to stop bleeding.

Although the traditional single operation clamp has many improvements in structure, but because it is a single operation, the following disadvantages are unavoidable: On the one hand, when multiple blood vessels need to be stopped at the same time, it needs to be operated multiple times, which must be extended. Surgery time, you must know that the operation time is a matter of seconds. At present, medical equipment is to save doctors' operation time as the first priority. Because the longer the time, the more fatigue the doctor has, and the greater the impact on the patient's body. On the other hand, frequent entry and exit of clamps will greatly increase the risk of surgery and increase the probability of infection. In addition, during surgery, the problem that doctors often encounter during hemostasis is that many blood vessels are bleeding. Usually when the clamp is placed for the second time, the original blood vessels are blurred due to bleeding, which is difficult to find. Sometimes Need to clean again to find the blood vessels that need to stop bleeding. This will take more time. Patients will also need to bleed too much, and their physique is too overdrawn, which affects the progress of health recovery.

technical problem

In view of this, it is necessary to provide a hair clip applicator and its feeding device capable of simultaneously stopping hemorrhage of multiple blood vessels, simple operation and high accuracy.

Technical solutions

A bursting clamp includes a push handle, a pipe rod, a clamp head mounted on the front end of the pipe rod, a push-pull rod driven by the push handle, a feeding device, and a storage compartment. The storage compartment has a movable connection with the clamp head. The front end and the rear end opposite to the front end, one end of the push-pull rod is connected to the push handle, and the other end is connected to the rear end of the storage compartment and acts on the storage compartment to open or clamp the pliers head. The device includes a transmission member and a driving member for driving the movement of the transmission member. The storage compartment is built with a plurality of clips for clamping blood vessels. The transmission member extends into the storage compartment to push the clip into the jaw head.

In a preferred embodiment, the storage compartment includes a front compartment and a rear compartment. The rear compartment has a front end near the tong head and a rear end far from the tong head. The front compartment is provided on the inner wall of the front end of the rear compartment and The front end of the rear compartment extends to the opening of the jaw head, and the transmission member extends into the front compartment.

In a preferred embodiment, an upper lip and a lower lip which are parallel to each other and spaced up and down extend forward from the front end of the rear cabin, and a convex shaft extends from the upper lip and the lower lip facing each other, and the pliers The end of the head near the storage tank has a diagonal groove, and the convex shaft is inserted into the diagonal groove. The end of the pliers head is sandwiched between the outer wall of the front cabin and the inner wall of the rear cabin, and moves in the diagonal groove through the convex shaft. To drive the pliers head to open or clamp.

In a preferred embodiment, an upper mounting piece and a lower mounting piece are provided at the front end of the pipe rod, and two mounting pieces are each provided with a rotating shaft. The pliers head includes a pair of pliers arms, and the rear end of the pair of pliers arms and the tube The shaft is connected with a shaft hole at the rear end to install a rotating shaft, so that the pliers head rotates around the rotating shaft, and the pair of caliper arms is clamped and released under the pull of the rear cabin.

In a preferred embodiment, the front cabin has a front hatch and a rear hatch close to the tong head, and side grooves are respectively formed on the two sides of the rear end of the rear cabin, and each side groove is from the rear of the rear cabin. The hatch at the end extends to the rear hatch of the front cabin, and the transmission member has a hollow cavity accommodating the push-pull rod, and two sides of the front end of the hollow cavity of the transmission member are axially extended with side bars, two sides The side bars are correspondingly inserted into the two side grooves of the rear cabin, and the push-pull rod further extends between the side bars and is connected to the rear end of the rear cabin.

In a preferred embodiment, the transmission member further has a ejector rod, the ejector rod is connected to the front end of the side strip and extends axially into the front compartment, and the front compartment is used to store a blood vessel clip, and The lever acts on the clamps in the front compartment and sends the clamps to the opening of the jaw head.

In a preferred embodiment, the driving member includes a gear assembly, a rear end of the transmission member has a toothed stripe, and the gear assembly has a gear meshing with the toothed stripe, and the geared member is driven to move by rotating the gear.

In a preferred embodiment, a mounting tube is connected to the end of the pipe rod near the push handle, the mounting tube is sleeved on the toothed end of the transmission member, and the mounting tube is opened corresponding to the position of the toothed stripe. There are rack grooves, and the tooth patterns of the gears penetrate into the rack grooves and mesh with the tooth stripes.

In a preferred embodiment, the mounting tube is mounted on a push handle, the mounting tube is provided with fixing members on both sides of the rack groove, and the gear is clamped between the two fixing members through a shaft, A wheel handle extends from an end of the gear far from the tooth pattern, and the gear drives a transmission member by moving the wheel handle. The rear end of the push-pull rod away from the storage compartment has an engagement larger than the main part of the push-pull rod. The top of the push handle is provided with a clamping slot, and the engaging portion is snapped into the clamping slot.

In a preferred embodiment, the pliers head includes a pair of caliper arms, and the opposite inner sides of the two caliper arms are respectively provided with axially extending guide grooves, the guide grooves communicate with the storage compartment, so that the clamps are in transmission. The two pieces of the guide grooves penetrate from the front end to the rear end of the jaw under the push of the piece.

In a preferred embodiment, the jaw head includes a first jaw arm and a second jaw arm that are crossed, each jaw arm includes a mounting portion and a jaw portion, and each jaw portion has a front end and a rear end. The mounting part of the tong arm is connected to the rear end of the tong part, each of the tong arm has a shaft hole and is fixed by inserting a rotating shaft, and the two tong arms respectively rotate relative to the rotating shaft to perform a clamping action, two The opposite inner sides of the forceps arm are respectively provided with guide grooves along the length direction of the forceps arm, and the two guide grooves are located on the same horizontal plane for receiving the clip.

In a preferred embodiment, two mounting portions of the caliper arms are provided with diagonal grooves at positions far from the pliers portion, the two diagonal grooves intersect from the outside to the inside, and the shaft holes of the mounting portions are located in the pliers portion and Between the oblique grooves, two said oblique grooves are respectively installed at the front end of a storage compartment, said storage compartment is used for storing clips, the front end of the storage compartment extends forward with upper lip parallel to each other and spaced up and down A convex shaft extends from the lower lip, the upper lip and the lower lip face each other, and the convex shaft is inserted into the oblique groove.

In a preferred embodiment, each jaw arm has two groove walls defining a guide groove, and the two groove walls of each jaw arm are respectively recessed near the front end, and the front end of the clamp has a guide post, and The notch is used for accommodating the guide post, and an inner groove is also provided at the bottom of each guide groove. A step edge is formed between the groove wall of the inner groove and the two groove walls of the guide groove. The front edge of the step edge is connected with the notch, the groove width of the inner groove is consistent with the thickness of the clip, and the groove width of the guide groove is consistent with the height of the guide post of the clip.

In a preferred embodiment, the step edge gradually rises from the middle of the jaw head to the jaw, and the front end of the step edge of the inner groove is provided with an inner groove notch, two inner groove notches and two The notches have the same shape and corresponding position. The inner groove notches are lower than the notches. The guide groove of each jaw arm can be divided into a front groove near the jaw and a rear groove near the mounting portion. The depth is greater than the depth of the front section groove, so that a height difference is formed at the junction of the front section groove and the rear section groove.

Preferably, the front compartment is long box-shaped, the rear compartment is tubular, the front compartment and the rear compartment are coaxial, the interior space of the front compartment is square, and the rear part of the rear compartment is lateral The side groove is divided into an upper wall and a lower wall, and the interior space of the rear compartment is defined by two side bars of the transmission member and the upper and lower walls of the rear compartment.

In another aspect of the embodiments of the present invention, there is also provided a feeding device for a bursting clamp, the bursting clamp having a pipe rod and a clamp head mounted on the front end of the pipe rod, and the feeding device is used for clamping The clip of the blood vessel is sent to the opening of the forceps head. The feeding device includes a storage compartment, a transmission part and a driving part for driving the movement of the transmission part. The storage compartment is in communication with the opening of the forceps head. A plurality of clips are installed, and the transmission member extends into the storage compartment to push the clips into the opening of the clamp head.

Preferably, the pipe rod is provided with a lock nut, and the lock nut is provided with a screw penetrating in a direction perpendicular to the axial direction of the pipe rod, and the screw is tightened when the transmission member sends the clamp to the opening of the jaw head. The screw is tightly pressed against the outer surface of the transmission member to fix the transmission rod and prevent the transmission rod from loosening.

Preferably, the storage compartment includes a front compartment and a rear compartment. The rear compartment has a front end near the tong head and a rear end far from the tong head. The front compartment is provided on the inner wall of the front end of the rear compartment and is formed by the front end of the rear compartment. Extending to the opening of the pliers head, the transmission member extends into the front compartment, the front compartment has an upper inner wall and a lower inner wall, and the upper and lower inner walls are respectively provided with axially extending slip bars, and the top The upper and lower surfaces of the rod slide against the two sliding ribs. The front compartment is provided with a lead-out notch near the side edge of the opening of the jaw head, which is used to slide out through the lead-out notches on both sides when the clip comes out of the front compartment. The front end of the ejector rod is provided with a corrugated groove, and the corrugated groove is pressed against the clip.

Beneficial effect

The above-mentioned bursting clamp includes a feeding device and a storage compartment. Several clips that prevent blood vessels can be stored in the storage compartment in advance, and then the feeding and clamping are performed step by step in cooperation with the feeding device. First, the clips stored in the storage compartment are pushed into the pliers head by the transmission member, and the clips are transported into place. Then, the push-pull rod acts on the front end of the storage compartment, and the front end is connected with the forceps head to clamp the forceps head, so that the clamp sent to the forceps head clamps the blood vessel. After clamping the blood vessel, the forceps head needs to be loosened, and then the forceps head is opened by the push-pull effect of the push-pull rod, and then the clamp action of the next blood vessel is turned. Therefore, the above-mentioned continuous clip applicator can simultaneously feed and clamp multiple or continuous hemostatic clips, and does not need to be replaced. It is not necessary to remove the clip appliers to reinstall clips outside the body, which can accurately and quickly stop bleeding in multiple blood vessels. The whole process is simple and easy to operate, which greatly saves the operation time, improves the operation efficiency, improves the quality of the operation, reduces the risk of the operation, greatly reduces the pain of the patient, recovers quickly after operation, and can maintain high accuracy.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic perspective view of a three-dimensional clip applying clip according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of a three-dimensional clip applying clip according to an embodiment of the present invention.

FIG. 3 is a schematic exploded perspective view of a hemostatic clip installed in the burst hair clip forceps according to the embodiment of the present invention.

FIG. 4 is a schematic cross-sectional structure view of a hemostatic clip installed in a hair clip applier according to an embodiment of the present invention.

FIG. 5 is an enlarged schematic view of a front end position structure of the hair clip applier in FIG. 4. FIG.

FIG. 6 is an enlarged schematic view of a position structure of a lock nut of the hair clip applier of FIG. 4.

FIG. 7 is a schematic structural diagram of a front end portion of a burst hair clip applier after removing a pipe rod according to an embodiment of the present invention.

FIG. 8 is a schematic perspective view showing the three-dimensional structure of the feeding device of the continuous hair clip applier according to the embodiment of the present invention.

FIG. 9 is another schematic perspective exploded view of a burst hair clip applier assembled by a feeding device according to an embodiment of the present invention.

FIG. 10 is an exploded schematic view of a clip head of a burst hair clip pliers according to an embodiment of the present invention.

FIG. 11 is an exploded structure diagram of the clip-on force applying clip of the embodiment of the present invention when the pliers head is fixed. The figure also shows a closed clip and a pliers head fixing structure.

FIG. 12 is a schematic cross-sectional structural diagram of the installation of a clamp head, a storage tank, and a pipe rod of a continuous hair clip applying clamp according to an embodiment of the present invention. A clamp is provided in the clamp head.

Embodiments of the invention

The present invention will be described in detail below with reference to specific embodiments and drawings.

Please refer to FIG. 1, FIG. 2, FIG. 8, and FIG. 9, which show a hair clip applier 100 according to an embodiment of the present invention, including a push handle 10, a pipe rod 20, and a forceps head 30 mounted on the front end of the pipe rod 20. A push-pull rod 12 driven by a push handle 10, a feeding device 40, and a storage compartment 50. The storage compartment 50 has a front end movably connected to the clamp head 30 and a rear end opposite to the front end. One end of the push-pull rod 12 Connected to the push handle 10, the other end is connected to the rear end of the storage compartment 50 and acts on the storage compartment 50 to open or clamp the clamp head 30. The feeding device 40 includes a transmission member 41 and a driving member 41 is a driving member 42 for moving. The storage compartment 50 has a plurality of clips for clamping blood vessels. The transmission part 41 extends into the storage compartment 50 to push the clips into the forceps head 30.

As shown in the figure, the storage compartment 50 also serves as a component of the feeding device 40. The storage compartment 50 communicates with the pliers head 30, and a plurality of clips 60 are installed therein. The transmission member 41 extends into the storage compartment. 50 is used to push the clip 60 into the opening of the forceps head 30.

Preferably, the storage compartment 50 includes a front compartment 51 and a rear compartment 55. The rear compartment 55 has a front end near the jaw head 30 and a rear end far from the jaw head 30. The front compartment 51 is provided in the rear compartment 55. The inner wall of the front end extends from the front end of the rear compartment 55 to the opening of the pliers head 30, and the transmission member 41 extends into the front compartment 51.

As shown in FIG. 2, the front end of the rear compartment 55 extends forwardly with an upper lip 56 and a lower lip 57 that are parallel to each other and spaced up and down. A convex shaft 561 extends from the upper lip 56 and the lower lip 57 facing each other. And 562. As shown in FIGS. 2 and 3, the end of the forceps head 30 near the storage tank 50 has an inclined groove 35, and the convex shafts 561 and 562 are inserted into the inclined groove 35. The end of the forceps 30 is clamped between Between the outer wall of the front cabin 51 and the inner wall of the rear cabin 55, the convex shafts 561 and 562 move in the diagonal groove 35 to drive the pliers head 30 to open or clamp. Therefore, the convex shafts 561 and 562 are inserted into the oblique groove 35, and the two pliers arms 31 and 32 are pivoted by the convex shafts 561 and 562. In this way, the rotating shaft 23 is used as a fulcrum to pull the convex shafts 561 and 571 of the storage compartment 50, and the two jaw arms 31 and 32 perform a clamping action. At the same time, the storage compartment 50 is pulled backward. Therefore, the front compartment 51 is now Retracting is equivalent to avoiding the clip 60. In this way, before the jaws are clamped, the end of the clamp 60 can still stay a part in the front of the front compartment 51. When pulled back, the front cabin 51 retracts and completely releases the clamp 60, which facilitates the two jaws 31, 32 for pliers. Clip action.

As shown in FIGS. 2 and 3, the front end of the pipe rod 20 is provided with an upper mounting piece 21 and a lower mounting piece 22, the two mounting pieces 21, 22 are each equipped with a rotating shaft 23, and the forceps head 30 includes a pair of forceps arms, As shown in the figure, the first jaw arm 31 and the second jaw arm 32 are connected to each other. The rear ends of the pair of jaw arms 31 and 32 are connected to the pipe rod 20 and are provided with a shaft hole 36 for the rotation shaft 23 at the rear end. The jaw head 30 rotates around the rotation shaft 23, and the pair of jaw arms 31 and 32 performs a clamping and releasing action under the pull of the rear compartment 55. The two rotating shafts 23 are not connected, and the length is substantially the same as the shaft hole 36. Therefore, by using the two upper and lower rotating shafts 23, the two pliers arms 31 and 32 are respectively fixed up and down.

Referring to FIG. 10, each of the caliper arms 31 and 32 includes a mounting portion 33 and a caliper portion 34. Each of the caliper portions 34 has a front end and a rear end (the front end is close to the jaw). The mounting portion 33 is connected to the rear end of the jaw portion 34. Each of the jaw arms 31 and 32 has a shaft hole 36 and is fixed by inserting a rotation shaft 23. The two jaw arms 31 and 32 are relatively rotated around the rotation shaft 23 to For the clamping action, guide grooves 311 and 321 are respectively provided on the inner sides of the two clamp arms 31 and 32 along the length direction of the clamp arms 31 and 32, and the two guide grooves 311 and 321 are located on the same horizontal plane for receiving. Clip 60.

Please refer to FIG. 11 in conjunction with FIG. 1 and FIG. 2, the pliers head 30 is installed at the front end of the bursting clamp when applied, the rotating shaft 23 is installed at the front end of a pipe rod 20, and the feeding device 40 is mounted on the installation tube 25. There is a gap between the two mounting portions 33 to conveniently store the storage compartment.

Preferably, the inclined grooves 35 are provided on the mounting portions 33 of the two pliers arms 31 and 32 away from the pliers portions 34. The two inclined grooves 35 intersect from the outside to the inside, and the two inclined grooves 35 run toward the two The opening shapes of the two tong arms 31 and 32 are the same. The shaft hole 36 of the mounting portion 33 is located between the tong portion 34 and the oblique groove 35.

Referring to FIG. 7 in conjunction with FIG. 7, further, the two inclined grooves 35 are respectively installed at the front ends of one push-pull element, and this embodiment is a storage tank 50. The two inclined grooves 35 are installed at the front end of the storage compartment 50. The clip 60 is pushed by the transmission member 41 of the feeding device 40 to push the clip 60 in the storage compartment 50 into the forceps head 30. The feeding device 40 uses a gear and a rack cooperation to push materials. The back end of the storage compartment 50 is connected with a push-pull rod 12 for pushing and pulling the storage compartment 50, pulling the diagonal groove 35, and causing the two jaw arms 31, 32 to perform a clamping action.

As shown in FIG. 7 and FIG. 11, in order to allow the front end of the storage compartment 50 to remain between the two jaw arms 31 and 32 during clamping, the two guide grooves 311 and 321 are at a section close to the mounting portion 33. The groove depth (the depth parallel to the direction of movement of the jaws) is greater than the groove depth near the jaws, so that there is room for the front end of the storage tank 50. Therefore, the guide grooves 311 and 321 of each jaw arm 31 and 32 can be divided into a front groove near the jaw and a rear groove near the mounting portion. The depth of the rear groove is greater than the depth of the front groove. Steps are formed at the joints of section grooves.

Further, the mounting portions 33 of the two caliper arms 31 and 32 are spaced up and down by a predetermined gap, and the axial depth of the gap along the rotating shaft 23 is consistent with the groove width of the guide grooves 311 and 321 in the axial direction of the rotating shaft 23. The gap is common to the two guide grooves 311 and 321 to penetrate into the front compartment 51 of the storage compartment 50. The pair of tong arms 31 and 32 are clamped and released by the front compartment 51 of the storage compartment 50.

Preferably, the two guide grooves 311 and 321 penetrate from the front end to the rear end of the jaw portion 34. Further, each of the forceps arms 31 and 32 has two groove walls defining guide grooves 311 and 321, and the two groove walls of each of the forceps arms 31 and 32 are respectively provided with notches 312 and 322 near the front end. As shown in FIGS. 10 and 11, the front end of the clip 60 has an upright guide post 61, and the notches 312 and 322 are configured to receive the guide posts 312 and 322. When the clip 60 is sent to the jaw, the guide posts 312, 322 automatically slide into the notches 312, 322, thereby automatically positioning and clamping the jaw head 30, so that the clamp 60 will not come out when the jaw moves, and provides a powerful Support for stable and accurate clamping operation.

Further, each guide groove 311, 321 includes an upper groove wall and a lower groove wall in the groove width direction, and an inner groove 315 is also formed at the groove bottom of each guide groove 311, 321. The groove wall and the guide groove of the inner groove 315 A step edge 316 is formed between the upper groove wall and the lower groove wall of 311 and 321, that is, the groove edge 316 of the inner groove 315, that is, the groove edge 316 is lower than the upper groove wall and the lower groove wall. The front edge of the inner groove 315 is connected to the notches 312 and 322 along the front end of the inner groove 315. The width of the inner groove 315 is consistent with the thickness of the clip 60, so that when the clip 60 is pushed forward, the side of the clip 60 is at least partially along the inner groove 315. Forward, and the groove width of the guide grooves 311 and 321 matches the height of the guide pillars 312 and 322, that is, the guide pillars 312 and 322 advance along the groove of the inner groove 315 and along the 316. Therefore, each of the guide grooves 311 and 321 is configured as a channel for the clip 60 to move smoothly, so that the clip 60 can be accurately conveyed in place and clamped firmly.

Further, in addition to the upper groove wall and the lower groove wall, the notches 312 and 322 are respectively dug near the front end, and the inner edge of the groove 315 of the inner groove 315 is also provided with an inner groove notch, two inner groove notches and two concaves. The mouths 312 and 322 have the same shape, but the inner groove notches are lower than the notches 312 and 322. The inner groove notches and the notches 312 and 322 are provided so that the guide posts 312 and 322 of the clip 60 can smoothly slide into the inner groove notches. Position of the openings and notches 312, 322.

In this way, the inner sides of the forceps arms 31 and 32 have guide grooves 311 and 321. Generally, the hemostatic closing clip 60 has two clamp arms. The two clamp arms are placed in the guide grooves 311 and 321 and are tightly connected by the two guide grooves 311 and 321. With the two clamping arms of the clamp, the clamp clamps the blood vessel by the clamping action of the clamp arms 31, 32. The guide grooves 311 and 321 run through the entire length of the tong arms 31 and 32 and communicate with the storage tank 50, which facilitates conveying the multiple clips 60 stored in the storage tank 50 to the guide grooves 311 and 321, and the guide grooves 311 and 321, respectively. It is tightly combined with the clip, and has a precise structure. It can accurately and quickly achieve vascular hemostasis during hemostasis operation, with higher precision and accuracy.

In the above-mentioned bursting forceps forceps pliers head 30, the inner sides of the forceps arms 31 and 32 are provided with guide grooves 311 and 321. Generally, the hemostatic closing clip 60 has two clamp arms, and the two clamp arms are placed in the guide grooves 311 and 321. The two guide grooves 311 and 321 are closely matched with the two clamp arms of the clamp, and the clamp clamps the blood vessel by the clamp action of the clamp arms 31 and 32. The guide grooves 311 and 321 run through the entire length of the tong arms 31 and 32 and communicate with the storage tank 50, which facilitates conveying the multiple clips 60 stored in the storage tank 50 to the guide grooves 311 and 321, and the guide grooves 311 and 321, respectively. It is tightly combined with the clip, and has a precise structure. It can accurately and quickly achieve vascular hemostasis during hemostasis operation, with higher precision and accuracy.

Preferably, the front compartment 51 has a front hatch 510 and a rear hatch 519 close to the tong head 30, and side grooves 58 are respectively formed on the two sides of the rear end of the rear compartment 55, and each side groove 58 is from the rear The hatch at the rear end of the cabin 55 extends to the rear hatch 519 of the front cabin 51. The transmission member 41 has a hollow cavity accommodating the push-pull rod 12, and the two sides of the front end of the hollow cavity of the transmission member 41 axially extend respectively. There are side bars 48, two side bars 48 are correspondingly inserted into two side grooves 58 of the rear compartment 55, and the push-pull rod 12 further extends between the side bars 48 and the rear end of the rear compartment 55 connection.

As shown in FIGS. 2 and 3, further, an inner wall of a rear end of the rear compartment 55 is dug with a mounting groove 59. The burst clamp includes a push-pull rod 12, and one end of the push-pull rod 12 is tightly coupled to the The mounting groove 59 is driven by the push-pull rods 12 to drive the clamp head 30 to perform clamping and loosening operations. The front end of the push-pull rod 12 may be installed in the mounting groove 59 through an interference fit, so that the push-pull rod 12 is tightly coupled to the rear end of the rear compartment 55, and both move synchronously.

The front compartment 51 has a long box shape, the rear compartment 55 is tubular, the front compartment 51 and the rear compartment 55 are coaxial, the interior space of the front compartment 51 is square, and the rear end of the rear compartment 55 Partly divided into upper and lower walls by side grooves 58, the interior space of the rear compartment 55 is defined by the two side bars 48 of the transmission member 41 and the upper and lower walls of the rear compartment 55.

The storage compartment 50 and the transmission member 41 are preferably tubular. The side grooves 58 are preferably formed by cutting the sides of the rear compartment 55. The two side grooves 58 are axially symmetrical and communicate with the space in the cabin. The side bars 48 may be It is formed by cutting out the upper and lower parts of the tube, and the side strip 48 is equivalent to the complementary part of the tubular structure of the side groove 58, that is, the storage compartment 50 and the transmission member 41 are both tubular and have the same diameter. 48 is inserted into the side groove 58 and merged into a tube, which makes the structure more compact and improves the accuracy of the instrument. In addition, during the pushing process of the transmission lever 41, the side bars 48 move forward along the side grooves 58. Therefore, the side bars 48 do not fill the entire side grooves 58 from the beginning. The side bars 48 are closely matched with the side grooves 58. When the side bars 48 are moved forward, the side grooves 58 are used as guide grooves. The lengths of the side bars 48 and the side grooves 58 are basically the same.

As shown in FIGS. 2, 3 and 4, the transmission member 41 further has a push rod 43 and is located at the front end of the transmission member 41. The ejector rod 43 is connected to the front end of the side bar 48 and extends axially into the front compartment 51. The front compartment 51 is used to store the blood vessel clip 60. The ejector rod 43 acts on the clip 60 in the forward compartment 51, and The clip 60 is sent to the opening of the forceps head 30. As shown in FIG. 4, the front compartment 51 has four clips 60. The clip 60 is flattened when inside the front compartment 51. When leaving the front compartment 51 and entering between a pair of tong arms 31 and 32, the clip 60 is naturally expanded. The open shape is a naturally open clip 60 'shown in FIG.

As shown in FIG. 3, the end of the side strip 48 of the transmission member 41 near the rear compartment 55 has a first fastening member, and a second fastening member is provided at the rear end of the ejector rod 43, and the second fastening member It is fastened with the first fastener, so that the ejector rod 43 serves as an axial extension of the transmission rod. The ejector rod 43 acts on the clip 60 in the front compartment 51 and sends the clip 60 to the opening of the clamp. Specifically, in the embodiment shown in the figure, the second fastener and the first fastener are concave and convex, the second fastener is I-shaped at the rear end of the ejector rod 43, and the first fastener is The pieces are concave. Of course, in other embodiments, the second fastening member and the first fastening member are axially inserted fastening structures, or are toothed, and may also be threaded connections. These connection structures mainly connect the ejector rod 43 and the transmission member 41 into one body, which can be connected together and are convenient for disassembly and assembly. For example, in the illustrated structure, the second buckle and the first buckle are inseparable in the axial direction, and can be easily disassembled perpendicularly to the axial direction. The ejector rod 43 is preferably sheet-shaped, and its length is substantially equivalent to that of the front compartment 51.

As shown in FIGS. 2, 3 and 4, preferably, the driving member 42 includes a gear assembly. The rear end of the transmission member 41 has a toothed stripe 45. The gear assembly has a gear 46 meshing with the toothed stripe 45. The rotation drives the transmission member 41 to move. Specifically, as shown in FIG. 3, a gear 46 is mounted on a shaft 47, and a wheel handle 48 extends from an end of the gear 46 far from the tooth pattern. By pushing the wheel handle 48, the gear 46 drives the rack. mobile.

As shown in FIGS. 3 and 4, specifically, the pipe rod 20 is connected to an end near the push handle 10 with a mounting pipe 26, and the mounting pipe 25 is sleeved on the toothed stripe 45 end of the transmission member 41. The mounting pipe 25 is provided with a rack groove 26 at a position corresponding to the tooth stripe 45, and the tooth pattern of the gear 46 projects into the rack groove 26 to mesh with the tooth stripe 45.

As shown in FIGS. 3 and 4, preferably, the mounting pipe 25 is mounted on the push handle 10, the mounting pipe 25 is provided with fixing members 49 on both sides of the rack groove 26, and the gear 46 passes through a shaft 47 is sandwiched between two fixing members 49. The rear end of the push-pull rod 12 away from the storage compartment 50 has an engaging portion 13 having a diameter larger than that of the main portion of the push-pull rod 12. A locking slot 14 is provided on the top of the pushing handle 10, and the engaging portion 13 is locked into the locking slot 13. . A clamping groove 13 is dug down from the top surface of the top of the push handle 10, and a cylindrical groove is dug downward. The clamping groove 13 faces a mounting pipe 25 and has a slot. The width of the slot is the same as the diameter of the main body of the push-pull rod 12, but smaller than the engaging portion 13. The diameter of the cylindrical groove 13 is the same as the diameter of the engaging portion 13. As a result, the engaging portion 13 of the push-pull rod 12 is pushed into the engaging groove 13 by the top surface of the push handle 10, and the axial release of the engaging portion 13 is restricted, and it can only be taken out from the top surface.

As shown in Fig. 4-6, the mounting tube 25 has a lock nut 27. The lock nut 27 can also be said to be mounted on the pipe rod 20 to connect the mounting tube 25 and the pipe rod 20 together. The lock nut 27 is provided with a screw 28 penetrating in the direction perpendicular to the axial direction of the mounting tube 25. When the transmission member 41 sends the clip 60 to the openings of the clamps 31 and 32, the screw 28 is tightened to tighten the screw 28. The transmission rod 41 is fixed on the outer surface of the transmission member to prevent the transmission rod 41 from loosening. The screw 28 penetrates the pipe rod 20. The screw 28 is sleeved with a locking pull rod 281 for locking the screw 28. As shown in FIG. 4, the pipe rod 20 is mounted on a handle 10. Specifically, the pipe rod 20 can be mounted on the handle 10 through a lock nut 27 and a mounting tube 25.

As shown in FIGS. 4 and 6, the mounting tube 25 is provided with an external thread near the front end of the lock nut 27, and the external thread is sleeved with an external nut 24. The mounting pipe 25 is dug with a step 251 at the inner wall corresponding to the position of the external thread. The pipe rod 20 shrinks near the rear end of the lock nut 27 and has a connecting pipe section with a smaller pipe diameter. The end of the connecting pipe section abuts against the step 251. The outer sleeve of the connecting pipe section is provided with a sleeve 29. The sleeve 29 has a convex ring on the outer wall. The convex ring is pressed by the outer nut 24 and the outer nut 24 is caught. When disassembling and disassembling, first loosen the screw 28 and remove the lock nut 27, the pipe rod 20 can be pulled out, and the feeding device 40 and the storage compartment 50 can be cleaned. The disassembly and assembly are convenient, and the cleaning is convenient and quick. Then, by loosening the outer nut 24, the mounting tube 25 can be disassembled, the feeding device 40 and the storage compartment 50 can be separated, and the push-pull rod 12 can be taken out for replacement or cleaning, which is also convenient and easy to operate.

As shown in FIG. 7, the front cabin 51 has an upper inner wall and a lower inner wall. The upper and lower inner walls are respectively provided with axially extending sliding ribs 512. The upper and lower surfaces of the ejector rod 43 abut two The sliding rib 512 is used for sliding, and the front compartment 51 is provided with a lead-out notch 513 at the side edge of the hatch near the opening of the clamps 31 and 32, and is used to slide out through the lead-out notches 513 on both sides when the clip 60 comes out of the front compartment 51. . As shown in FIG. 3, the front end of the ejector rod 43 is provided with a corrugated groove 431 or a concave-convex structure, and the corrugated groove 431 presses against the clip 60. The rear end of the clip 60 has a corrugated structure, and the corrugated groove 431 cooperates with the corrugated structure so that the ejector rod 43 is tightly engaged with the clip 60 when the front compartment 51 is moved forward, and the force transmission is smoother and labor-saving.

The opposite inner sides of the two tong arms 31 and 32 are respectively provided with axially extending guide grooves 311 and 321, and the guide grooves 311 and 321 communicate with the storage compartment 50, so that the clip 60 enters the guide groove under the push of the transmission member 41 311, 321. Specifically, the guide grooves 311 and 321 communicate with the front compartment 50 in the axial direction, that is, the guide grooves 311 and 321 serve as an extension of the inner space of the front compartment 50, and the front end of the front compartment 50 extends into the jaw head 30 near the jaw. When the front compartment 51 is retracted to the rear end, the space in the jaw head 30 can be used to place the clip 60, and the front compartment 51 is retracted to make room for the clip. In this way, after the clip 60 is pulled out of the front compartment 51, the two clip arms of the clip 60 smoothly enter the guide grooves 311 and 321. When the blood vessel is hemostatic, the two forceps arms 31 and 32 are driven by the action of the push-pull rod 12 to clamp the The clip 60 clamps the blood vessel to stop bleeding.

In the continuous hair clip applicator feeding device, the closing clip 60 that clamps the closed blood vessel is stored through the storage compartment 50, and multiple closing clips 60 can be stored at the same time, and the transmission member 41 is used to push the clip 60 to the opening of the forceps head 30. The storage compartment 50 and the transmission member 41 are both inside the pipe rod 20. This structure makes full use of the space in the pipe of the clamp, which can store multiple clips 60 and push the clip 60 through the transmission member 41. The structure is precise, compact and reasonable. . In addition, the closed clip 60 is stored in the storage compartment 50 and sent out at the front end of the storage compartment 50, which serves as both storage and front end of the feeding, so that the feeding is more accurate and in place. The clip 60 can be transported by driving the transmission 41 The operation of the entire feeding process is simple and fast, which saves a lot of time for medical treatment and improves the quality and efficiency of medical surgery.

It can be known from the above that the above-mentioned continuous hair clip applier 100 includes a feeding device 40 and a storage compartment 50. In the storage compartment 50, a plurality of clips 60 for blocking blood vessels can be stored in advance. Step by step. First, the clip 60 stored in the storage compartment 50 is pushed into the jaw head 30 by the transmission member 41, and the clip 60 is conveyed into place. Next, the push-pull rod 12 acts on the front end of the storage compartment 50, and the front end is movably connected with the forceps head 30 to clamp the forceps head 30, and the clamp 60 sent to the forceps head 30 clamps the blood vessel. After clamping the blood vessel, the forceps head 30 needs to be loosened, and then the forceps head 30 is opened through the front end of the storage tank 50 through the push-pull action of the push-pull rod 12, and then the clamp 60 is clamped by the next blood vessel. Therefore, the above-mentioned continuous clip applicator can simultaneously feed and clamp multiple or continuous hemostatic clips 60, and does not need to be replaced. It is not necessary to take out the clip applier 100 to reinstall the clip 60 outside the body, which can timely and accurately feed multiple clips. The hemostasis of the root vessel is simple and convenient, which greatly saves the operation time, improves the operation efficiency, improves the quality of the operation, reduces the risk of the operation, greatly reduces the pain of the patient, recovers quickly after operation, and can maintain high accuracy.

It should be noted that the present invention is not limited to the above embodiments. According to the creative spirit of the present invention, those skilled in the art can also make other changes. These changes made according to the creative spirit of the present invention should be included in the present invention. Within the scope of the claimed invention.

Claims

A bursting clamp includes a push handle, a pipe rod, and a clamp head mounted on the front end of the pipe rod, and is also characterized by a push pull rod, a feeding device, and a storage compartment driven by the push handle. The cabin has a front end that is movably connected to the clamp head and a rear end opposite to the front end. One end of the push-pull rod is connected to the push handle, and the other end is connected to the rear end of the storage tank and acts on the storage tank to open the clamp head. Or clamping, the feeding device includes a transmission member and a driving member for driving the transmission member to move, the storage compartment is built with a plurality of clips for clamping blood vessels, and the transmission part extends into the storage compartment to Push the clip into the pliers head.
The bursting clamp according to claim 1, wherein the storage compartment comprises a front compartment and a rear compartment, the rear compartment having a front end near the tong head and a rear end remote from the tong head, the front The cabin is provided on the inner wall of the front of the rear cabin and extends from the front of the rear cabin to the opening of the pliers head, and the transmission member extends into the front cabin.
The hair clip applier according to claim 2, wherein the front end of the rear compartment extends forwardly with an upper lip and a lower lip that are parallel to each other and spaced up and down, and the upper lip and the lower lip face each other. For a pair of extended shafts, the jaw head has an inclined groove near the end of the storage compartment, the convex shaft is inserted into the inclined groove, and the end of the jaw head is sandwiched between the outer wall of the front cabin and the inner wall of the rear cabin. The convex shaft moves in the oblique groove to drive the pliers head to open or clamp.
The hair clip applier according to claim 3, wherein the front end of the pipe rod is provided with an upper mounting piece and a lower mounting piece, and each of the two mounting pieces is provided with a rotating shaft, and the pliers head includes a pair of pliers arms. The rear end of the pair of caliper arms is connected to the pipe rod and a shaft hole is installed at the rear end to rotate the caliper head around the rotary shaft. The pair of caliper arms is clamped and pulled by the rear compartment. Release action.
The burst hair clip applier according to claim 3, wherein the front compartment has a front hatch and a rear hatch close to the pliers head, and side grooves are respectively formed at both sides of the rear end of the rear compartment, Each side groove extends from a hatch at the rear end of the rear cabin to a rear hatch of the front cabin, and the transmission member has a hollow cavity accommodating the push-pull rod, and two sides of the front end of the hollow cavity of the transmission member are axially respectively Side bars are extended, and the two side bars are correspondingly inserted into the two side slots of the rear cabin, and the push-pull rod is further extended between the side bars and connected to the rear end of the rear cabin.
The hair clip applier according to claim 5, wherein the transmission member further has a push rod, the push rod is connected to the front end of the side strip and extends axially into the front compartment, and the front The compartment is used to store the vascular clips. The clips act on the clips in the front compartment through the ejector rod and send the clips to the opening of the forceps head.
The hair clip applier according to claim 1, wherein the driving member includes a gear assembly, a rear end of the transmission member has a tooth stripe, and the gear assembly has a gear meshing with the tooth stripe, and the gear Rotate to drive the transmission.
The hair clip applier according to claim 7, characterized in that a mounting tube is connected to an end of the pipe rod near the push handle, and the mounting tube is sleeved on a toothed stripe end of the transmission member, so The mounting pipe is provided with a rack groove at a position corresponding to the tooth stripe, and the tooth groove of the gear extends into the rack groove to mesh with the tooth stripe.
The hair clip applier according to claim 8, wherein the mounting tube is mounted on a push handle, the mounting tube is provided with fixing members on both sides of the rack groove, and the gear passes through a shaft It is clamped between two fixing parts, and a wheel handle is extended at one end of the gear far from the tooth pattern. The gear drives the transmission member by moving the wheel handle, and the rear end of the push-pull rod away from the storage compartment has The diameter is larger than the engaging part of the main part of the push-pull rod. The top of the push handle is provided with a clamping groove, and the engaging part is snapped into the clamping groove.
The hair clip applying pliers according to claim 1, characterized in that the pliers head comprises a pair of pliers arms, and the opposite inner sides of the two pliers arms are respectively provided with axially extending guide grooves, the guide grooves and The storage compartment is in communication, so that the clip is driven into the guide groove by the driving member, and the two guide grooves are penetrated from the front end to the rear end of the tongs. Consistent.
The hair clip applier according to claim 1, wherein the jaw head comprises a first jaw arm and a second jaw arm that are crossed, and each jaw arm includes a mounting portion and a jaw portion, and each jaw portion has At the front end and the back end, two mounting portions of the caliper arm are connected to the rear end of the caliper portion. Each of the caliper arm has a shaft hole and is fixed by inserting a rotating shaft. The two caliper arms are relatively rotated around the rotating shaft respectively. During the clamping action, the opposite inner sides of the two pliers arms are respectively provided with guide grooves along the length direction of the tong arms, and the two guide grooves are located at the same horizontal plane for receiving the clamp.
The hair clip applying clamp according to claim 11, characterized in that the mounting portions of the two caliper arms are provided with diagonal grooves at positions far from the clamp portions, and the two diagonal grooves intersect from the outside to the inside, and The shaft hole of the mounting portion is located between the jaw portion and the inclined groove. The two inclined grooves are respectively installed at the front end of a storage compartment. The storage compartment is used for storing clips, and the front end of the storage compartment extends forward. There are an upper lip and a lower lip which are parallel to each other and spaced up and down. The upper lip and the lower lip are opposite to each other and have a convex shaft which is inserted into the oblique groove.
The hair clip applier according to claim 12, wherein each jaw arm has two groove walls defining a guide groove, and the two groove walls of each jaw arm are respectively recessed near the front end, so that A guide post is provided at the front end of the clip, and the notch is used to receive the guide post. An inner groove is also formed at the bottom of each guide groove, and the groove wall of the inner groove is between the two groove walls of the guide groove. A step edge is formed, and the front end of the step edge of the inner groove is connected with the notch, the groove width of the inner groove is consistent with the thickness of the clip, and the groove width of the guide groove is consistent with the height of the guide post of the clip.
The burst hair clip pliers according to claim 13, wherein the step edge gradually rises from the middle of the jaw head to the jaw, and the front end of the step edge of the inner groove is provided with an inner groove notch, The two inner groove notches have the same shape and corresponding position as the two notches. The inner groove notches are lower than the notches. The guide groove of each pliers arm can be divided into a front groove near the jaw and a rear groove near the mounting portion. The depth of the rear section groove is greater than the depth of the front section groove, so that a height difference is formed at the junction of the front section groove and the rear section groove.
The burst hair clip applier according to claim 2, wherein the front compartment is long box-shaped, the rear compartment is tubular, the front compartment and the rear compartment are coaxial, and the interior of the front compartment The space is square. The rear part of the rear compartment is divided into upper and lower walls by side grooves. The interior space of the rear compartment is composed of two side bars of the transmission member and the upper part of the rear compartment. A wall and a lower wall are defined.
A feeding device for continuous hair clip applicator, the continuous hair clip applicator has a pipe rod and a jaw head mounted on the front end of the pipe rod, and the feeding device is used to send a clip for clamping a blood vessel to an opening of the jaw head. The feeding device includes a storage compartment installed in a pipe rod, a transmission part, and a driving part for driving the transmission part to move. The storage compartment is in communication with the opening of the clamp head, and is used for installing a plurality of clips. The transmission member extends into the storage compartment to push the clip into the opening of the clamp head.
The feeding device of a bursting clamp according to claim 16, wherein the pipe rod is provided with a lock nut, and the lock nut is provided with a screw penetrating in a direction perpendicular to the axial direction of the pipe rod, When the transmission member sends the clip to the opening of the pliers head, the screw is tightened, so that the screw is tightly pressed against the outer surface of the transmission member to fix the transmission rod and prevent the transmission rod from loosening.
The feeding device of a bursting clamp as claimed in claim 6, wherein the storage compartment comprises a front compartment and a rear compartment, and the rear compartment has a front end near the tong head and a rear end far from the tong head, so The front compartment is provided on the front inner wall of the rear compartment and extends from the front end of the rear compartment to the opening of the clamp head. The transmission member extends into the front compartment. The front compartment has an upper inner wall and a lower inner wall. The inner walls are respectively provided with axially extending sliding ribs, and the upper and lower surfaces of the ejector rod are slidably abutted against the two sliding ribs, and the front compartment is provided with a lead-out gap at the side edge of the hatch near the opening of the jaw. It is used for the clip to slide out of the front compartment through the exit notches on both sides. The front end of the ejector is provided with a corrugated groove, and the corrugated groove is used to bear the clip.