CN219021460U

CN219021460U - Surgical laparoscope sleeve

Info

Publication number: CN219021460U
Application number: CN202320086380.XU
Authority: CN
Inventors: 刘文彬; 李德卫; 陈志雄; 李慧; 沈艾; 罗小军; 张希; 汪洋; 叶敏; 杨堃
Original assignee: Chongqing University Cancer Hospital
Current assignee: Chongqing University Cancer Hospital
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2023-05-16
Anticipated expiration: 2033-01-30

Abstract

The utility model discloses a surgical laparoscope cannula which comprises a cannula sheath, wherein a clamping cone is fixedly connected to the outside of the cannula sheath, an opening is formed in one end portion of the cannula sheath, a tube support is sleeved on the other end portion of the cannula sheath, three spring rods are fixedly connected to the inner side of the tube support, a backing ring is fixedly connected to one end portion of each spring rod, four rubber sheets are fixedly connected to the inner wall of the cannula sheath, a cannula needle is movably inserted into the cannula sheath, and a vertical rod is fixedly connected to the top end of the cannula needle. According to the utility model, through a series of structures, the friction resistance between the outer wall of the trocar and the inner wall of the trocar is increased, the sliding probability of the trocar along the outer wall of the trocar is reduced, and an operator can push the trocar to penetrate into skin conveniently, so that the time for the trocar to penetrate into skin is shortened, the depth of the trocar to be continuously inserted into the skin is reduced, the probability of the trocar to be continuously moved by a laparoscope to be pushed into the deep of the skin is reduced, and the difficulty of taking out the trocar is reduced.

Description

Surgical laparoscope sleeve

Technical Field

The utility model relates to a medical instrument for laparoscopic surgery, in particular to a surgical laparoscopic cannula.

Background

The laparoscopic surgery is a minimally invasive surgery, and is quite acceptable for patients because the postoperative scar is small and surgical operations such as stomach, spleen and liver resection can be completed, and the laparoscopic surgery is completed by matching various operation devices and instruments, wherein the laparoscopic surgery is taken as a channel sleeve which is inserted into the body of the patient as a laparoscope, and is an essential instrument in the laparoscopic surgery, but the traditional laparoscopic sleeve usually consists of a trocar and a trocar sleeve, after the trocar penetrates into the skin, the outer wall of the trocar and the inner wall of the trocar sleeve are smooth, so that the trocar sleeve sleeved outside the trocar is easy to slide along the trocar when the trocar is penetrated, the pushing and the penetration of the trocar sleeve by an operator are not facilitated, and the time consumption of the process of inserting the trocar into the skin is long; in addition, after the cannula is inserted into the skin, the trocar is usually required to be withdrawn, so that the cannula sheath is clamped on the pierced skin as a channel, and the opening at the end of the cannula sheath needs to be frequently contacted with the insertion structure of the laparoscope, so that the cannula sheath is easily pushed into the deep part of the skin by the laparoscope, and the subsequent removal of the cannula sheath from the skin is difficult.

Disclosure of Invention

In view of the above-described deficiencies in the prior art, the present utility model provides a surgical laparoscopic cannula.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a surgical laparoscope sleeve, includes the sleeve pipe, the outside fixedly connected with card awl of sleeve pipe, the one end of sleeve pipe is equipped with the trompil, the other tip cover of sleeve pipe is equipped with the pipe support, the inboard fixedly connected with three spring beam of pipe support, three the equal fixedly connected with backing ring of one end of spring beam, the inner wall fixedly connected with four sheet rubber of sleeve pipe, the inside swing joint of sleeve pipe has the trocar, the top fixedly connected with montant of trocar, the outside of montant is equipped with two cards, two equal fixedly connected with spring beam in middle part of card, two the top fixedly connected with push rod of spring beam, the top fixedly connected with connecting rod of montant, the top fixedly connected with ball is held to the connecting rod.

As a preferable scheme of the utility model, the top end of the holding ball is provided with a through hole, and the push rod is movably connected with the holding ball in a penetrating way through the through hole.

As a preferable scheme of the utility model, the inner wall of the backing ring is fixedly connected with a limit ring, and both sides of the inner wall of the limit ring are fixedly connected with spring pieces.

As a preferable scheme of the utility model, two round holes are formed in the middle of the vertical rod, the two elastic rods are respectively and movably connected with the two round holes in a penetrating way, and the two elastic rods are respectively and movably connected with the vertical rod in a penetrating way through the two round holes.

As an improvement scheme of the utility model, a channel is formed in the vertical rod, the top end of the channel is communicated with the bottom end of the through hole, and the bottom end of the channel is communicated with the top end of the round hole.

As an improvement scheme of the utility model, the top end of the push rod is fixedly connected with a semicircular block, and the outer wall of the sleeve sheath is fixedly connected with a plurality of clamping beads.

As an improvement scheme of the utility model, the top ends of the two clamping pieces are fixedly connected with the bottom ends of the connecting rods, and the bottom ends of the two clamping pieces are fixedly connected with the top ends of the trocars.

Compared with the prior art, the utility model has the following technical effects:

1. this operation peritoneoscope sleeve pipe sets up the card, and the card can be propped open by push rod and elastic rod for area of contact between trocar and the sleeve pipe sheath increases, makes the frictional force between trocar and the sleeve pipe sheath increase, and rethread sheet rubber makes the sleeve pipe needle and sleeve pipe sheath inner wall when appearing sliding, increases the frictional resistance between sleeve pipe needle outer wall and the sleeve pipe sheath inner wall, reduces sleeve pipe sheath along the gliding probability of sleeve pipe needle outer wall, makes the sleeve pipe sheath can pierce the skin simultaneously along with the sleeve pipe needle in, and the operator of being convenient for promotes the sleeve pipe sheath and pierces skin, thereby shortens sleeve pipe sheath and pierces the time of skin.

2. This operation peritoneoscope sleeve pipe sets up card awl and pipe support for when the sleeve pipe sheath was pushed into skin depths once more by the peritoneoscope, the card awl will be blocked at skin surface, reduce the sleeve pipe sheath and continue to insert the inside degree of depth of skin, when making the tip of peritoneoscope and sleeve pipe sheath frequently contact, spring beam will produce the reaction force to the celioscope of push, make the effort of peritoneoscope to the sleeve pipe sheath diminish, reduce the thrust of the laparoscope that the sleeve pipe sheath receives, reduce the sleeve pipe sheath by the probability that the peritoneoscope that constantly removes pushes into skin depths, through the pipe support, make the sleeve pipe sheath take out from the skin more easily, reduce the degree of difficulty that the sleeve pipe sheath took out.

Drawings

FIG. 1 is a schematic view of a surgical laparoscopic cannula;

FIG. 2 is a schematic structural view of a sheath;

FIG. 3 is a schematic view of the arrangement of the vertical bars and cards;

FIG. 4 is a schematic structural view of the rubber sheet arrangement within the cannula sheath;

fig. 5 is a schematic structural view of an arrangement of through holes, channels and round holes.

In the drawings, 1-trocar; 2-a cannula sheath; 3-clamping the cone; 4-a pipe bracket; 5-connecting rods; 6, holding the ball; 7-perforating; 8-a spring rod; 9-backing rings; 10-a limit ring; 11-a spring piece; 12-push rod; 13-a through hole; 14-card; 15-an elastic rod; 16-a round hole; 17-a vertical rod; 18-a rubber sheet; 19-channels.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

As shown in fig. 1 to 5, a surgical laparoscopic cannula comprises a cannula sheath 2, wherein the cannula sheath 2 is a guide channel for inserting a laparoscope into the skin, a clamping cone 3 is fixedly connected to the outside of the cannula sheath 2, the clamping cone 3 can form a protrusion on the outer wall of the cannula sheath 2, when the pushed laparoscope of the cannula sheath 2 is pushed deeper into the skin, the cannula sheath 2 can be prevented from sliding in continuously, the depth of the cannula sheath 2 pushed into the skin is reduced, the subsequent extraction of the cannula sheath 2 is facilitated, an opening 7 is formed at one end of the cannula sheath 2, the opening 7 can realize the penetration of a trocar 1 from the inside of the cannula sheath 2, the end of the cannula sheath 2 can puncture the skin under the action of the trocar 1, the cannula sheath 2 simultaneously punctures the inside the skin along with the trocar 1, a pipe bracket 4 is sleeved at the other end of the cannula sheath 2, the pipe bracket 4 can increase the volume of the end of the cannula sheath 2, the utility model is convenient for operators to hold when the cannula sheath 2 is pulled out, the time for pulling out the cannula sheath 2 from the skin is shortened, three spring rods 8 are fixedly connected with the inner side of the tube support 4, the spring rods 8 can deform and generate elastic force when the backing ring 9 is pushed by the laparoscope inserted into the cannula sheath 2, the generated elastic force and the pushing force of the laparoscope to the cannula sheath 2 are opposite acting forces, so that the pushing force of the laparoscope born by the cannula sheath 2 is reduced, the depth of the cannula sheath 2 pushed into the skin is reduced, one end part of each spring rod 8 is fixedly connected with the backing ring 9, the inner wall of the cannula sheath 2 is fixedly connected with four rubber sheets 18, the rubber sheets 18 can increase the sliding friction resistance between the inner wall of the cannula sheath 2 and the outer wall of the trocar 1, when the trocar 1 is penetrated into the skin, the probability that the cannula sheath 2 slides along with the outer wall of the trocar 1 is reduced, the trocar 1 is movably penetrated and connected with the inside of the cannula sheath 2, the top fixedly connected with montant 17 of trocar 1, when montant 17 can make trocar 1 take out in from trocar 2, make card 14 and its outer wall laminating, reduce the interference that card 14 was taken out to trocar 1, the outside of montant 17 is equipped with two cards 14, the equal fixedly connected with elastic rod 15 in middle part of two cards 14, card 14 can be by the back of two elastic rods 15 struts, contact with trocar 2's inner wall, make the area of contact between trocar 1 and the trocar 2 increase, thereby increase the frictional force between trocar 2 and the trocar 1, the top fixedly connected with push rod 12 of two elastic rods 15, push rod 12 is being promoted the back, can drive elastic rod 15 and wear out from round hole 16, and prop card 14, make card 14 and trocar 2's inner wall contact, thereby increase trocar 2 and trocar 1's area of contact, the top fixedly connected with connecting rod 5 of 17, the top fixedly connected with of connecting rod 5 holds ball 6, it can make things convenient for the operator to hold trocar 1, make trocar 1 take out more easily or pierce from trocar 2, make the operator use.

Specifically, the through hole 13 has been seted up on the top of holding the ball 6, push rod 12 is connected through hole 13 and holding ball 6 activity interlude, in the through hole 13 can make push rod 12 insert passageway 19 from the top of holding ball 6, realize the promotion to the interior elastic rod 15 of passageway 19, thereby make elastic rod 15 can prop up card 14, make the outer wall of trocar 1 and the inner wall of trocar 2 laminate more, reduce the gliding probability of trocar 2 along trocar 1 outer wall, more be favorable to trocar 2 to inhale skin simultaneously along with trocar 1.

The inner wall fixedly connected with spacing collar 10 of backing ring 9, the equal fixedly connected with spring leaf 11 in both sides of the inner wall of spacing collar 10, spacing collar 10 can fix a position the peritoneoscope structure for the inside of laparoscopic insertion sleeve pipe sheath 2 is more easy, does benefit to the operator and uses, and the spring leaf 11 is promoting by spacing collar 10 and producing the deformation after simultaneously, will promote spacing collar 10, makes spacing collar 10 reset fast, increases the control to the peritoneoscope, thereby increases the stability of peritoneoscope when removing.

Two round holes 16 are formed in the middle of the vertical rod 17, two elastic rods 15 are respectively connected with the two round holes 16 in a movable penetrating mode, the two elastic rods 15 are respectively connected with the vertical rod 17 in a movable penetrating mode through the two round holes 16, after being pushed by the push rod 12, the elastic rods 15 are pushed out of the two round holes 16, the clamping pieces 14 are pushed to a position away from the vertical rod 17, the clamping pieces 14 are made to be in close fit contact with the inner wall of the trocar 2, and therefore the contact area between the trocar 1 and the trocar 2 is increased.

The inside of montant 17 has seted up passageway 19, and the top of passageway 19 is linked together with the bottom of through-hole 13, and the bottom of passageway 19 is linked together with the round hole 16 top, and passageway 19 can link together through-hole 13 and round hole 16 for push rod 12 when being promoted, can drive the elastic rod 15 of bottom and wear out from round hole 16, make card 14 strutted, thereby realize the laminating of card 14 and sleeve pipe sheath 2 inner wall, increase the friction force of trocar 1 and sleeve pipe sheath 2.

The top fixedly connected with semicircle piece of push rod 12, semicircle piece can increase the area on push rod 12 top, and the force is borrowed to the person of facilitating the use, and the outer wall fixedly connected with of sheath 2 has a plurality of calorie pearls, and calorie pearls can increase the roughness of sheath 2 outer wall for sheath 2 when being promoted by the peritoneoscope that removes, reduces sheath 2 and slides the probability of skin depths.

The top of two cards 14 and the bottom fixed connection of connecting rod 5, the top fixed connection of the bottom of two cards 14 and trocar 1, the both ends of card 14 are fixed the back, and the promotion of elastic rod 15 can make the middle part of card 14 crooked for card 14 carries out extrusion friction to the inner wall of sheath 2, makes sheath 2 can pierce the skin simultaneously along with trocar 1 in, and the operator of being convenient for promotes sheath 2 and pierces the skin, thereby shortens sheath 2 and pierces the time of skin.

When the surgical laparoscope cannula is used, the holding ball 6 is required to be held, the trocar 1 is penetrated into skin, at the moment, the semicircular block at the top end of the holding ball 6 is pushed to drive the push rod 12 to slide into the through hole 13, the elastic rod 15 in the round hole 16 is pushed by the channel 19 until the elastic rod 15 slides out of the round hole 16, the clamping piece 14 at the end part of the elastic rod 15 is pushed by the elastic rod 15 to bend and deform, the clamping piece 14 is attached to the inner wall of the trocar 2, the trocar 2 is attached to the trocar 1 more tightly, at the moment, the trocar 2 sleeved outside the trocar 1 is penetrated along with the penetration of the trocar 1, when the trocar 2 has a tendency of sliding along the outer wall of the trocar 1, the rubber sheet 18 of the inner wall of the trocar 2 generates friction resistance, the sliding trend of the trocar 2 is reduced, the trocar 2 can be smoothly inserted into the skin along with the trocar 1, at the moment, the semicircular block can be loosened, then the elastic rod 15 is restored to the original state, the clamping piece 14 is driven to be folded to the outer side of the vertical rod 17, then the holding ball 6 can be held to draw the trocar 1 out of the trocar 2, at the moment, as the clamping piece 14 is not attached to the inner wall of the trocar 2 any more, the resistance of the trocar 1 drawn out of the trocar 2 is only the rubber sheet 18, the trocar 1 can be smoothly drawn out of the trocar 2, then the laparoscope can be inserted into the retainer ring 10 of the backing ring 9, the lens of the laparoscope is inserted into the pipe bracket 4, then enters the trocar 2 through the pipe bracket 4 and then enters the body through the opening 7 of the trocar 2, when the end of the laparoscope is contacted with the end of the trocar 2, the end of the laparoscope pushes and extrudes the retainer ring 10, the retainer ring 10 drives the spring sheet 11 to deform, the spring sheet 11 limits the movement of the end of the laparoscope at the end of the trocar 2, meanwhile, the cushion ring 9 is used for extruding the spring rod 8, so that the spring rod 8 deforms to generate elastic force, the elastic force is opposite to the thrust direction borne by the cushion ring 9, so that the thrust of the laparoscope to the cannula sheath 2 is reduced, and when the clamping cone 3 on the outer wall of the cannula sheath 2 is contacted with the skin of a patient, the cannula sheath 2 does not penetrate deep into the skin any more.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims

1. Surgical laparoscopic cannula comprising a cannula sheath (2), characterized in that: the outside fixedly connected with card awl (3) of sleeve pipe sheath (2), the one end of sleeve pipe sheath (2) is equipped with trompil (7), the other tip cover of sleeve pipe sheath (2) is equipped with pipe support (4), the inboard fixedly connected with three spring beam (8) of pipe support (4), three equal fixedly connected with backing ring (9) of one end of spring beam (8), the inner wall fixedly connected with four sheet rubber (18) of sleeve pipe sheath (2), the inside activity of sleeve pipe sheath (2) is interluded and is connected with trocar (1), the top fixedly connected with montant (17) of trocar (1), the outside of montant (17) is equipped with two cards (14), two equal fixedly connected with spring beam (15) in middle part of card (14), two the top fixedly connected with push rod (12) of spring beam (15), the top fixedly connected with connecting rod (5) of montant (17), the top fixedly connected with ball (6) are held to the top of connecting rod (5).

2. A surgical laparoscopic cannula according to claim 1, wherein: the top end of the holding ball (6) is provided with a through hole (13), and the push rod (12) is movably inserted and connected with the holding ball (6) through the through hole (13).

3. A surgical laparoscopic cannula according to claim 2, wherein: the inner wall of the backing ring (9) is fixedly connected with a limit ring (10), and both sides of the inner wall of the limit ring (10) are fixedly connected with spring pieces (11).

4. A surgical laparoscopic cannula according to claim 3, wherein: two round holes (16) are formed in the middle of the vertical rod (17), the two elastic rods (15) are respectively connected with the two round holes (16) in a movable penetrating mode, and the two elastic rods (15) are respectively connected with the vertical rod (17) in a movable penetrating mode through the two round holes (16).

5. A surgical laparoscopic cannula according to claim 4, wherein: the inside of montant (17) has seted up passageway (19), the top of passageway (19) with the bottom of through-hole (13) is linked together, the bottom of passageway (19) with the top of round hole (16) is linked together.

6. A surgical laparoscopic cannula according to claim 1, wherein: the top of push rod (12) fixedly connected with semicircle piece, the outer wall fixedly connected with of sleeve pipe sheath (2) a plurality of card pearl.

7. A surgical laparoscopic cannula according to claim 6, wherein: the top ends of the two clamping pieces (14) are fixedly connected with the bottom ends of the connecting rods (5), and the bottom ends of the two clamping pieces (14) are fixedly connected with the top ends of the trocars (1).