A sleeve-type puncture device for laparoscopy

Abstract

The utility model discloses a sleeve type puncture outfit for laparoscope relates to laparoscope puncture outfit technical field, the utility model discloses a puncture outfit shell main part and sleeve, the puncture outfit shell main part lower surface is installed with the connecting plate, and the connecting plate is annular board body structure, and the connecting plate lower surface is installed with the connecting end, and the connecting end inside is cavity structure, and the sleeve is installed in the connecting end lower surface, and the sleeve inside is linked together with the connecting end inside, and the two opposite surfaces of sleeve all are set up with the mounting groove, and the two mounting grooves all are installed with the support spring, and the support spring one end is fixedly installed with the pressing plate, and the two pressing plate outer surfaces all are set up with the thread groove. The utility model discloses through mounting groove, support spring and pressing plate structure, and the pressing plate is loosened after the sleeve puncture enters conveniently, and the pressing plate is properly pushed out with the reset of support spring, and the sleeve and puncture place keep stable with the cooperation of thread groove, and the entering of later period laparoscope and other instruments is convenient, and the smooth operation of guaranteeing operation is carried out.

Description

Technical Field

[0001] This utility model belongs to the technical field of laparoscopic puncture devices, and in particular relates to a sleeve-type puncture device for laparoscopy. Background Technology

[0002] A laparoscopic trocar is a device used to provide an instrument channel for minimally invasive abdominal and pelvic surgeries. The laparoscope is inserted into the abdominal cavity through the channel formed by the trocar sheath. Digital imaging technology is used to transmit the images captured by the laparoscope lens through optical fibers to the subsequent signal processing system and display them in real time on a dedicated monitor. The doctor then analyzes and judges the patient's condition by viewing the images of the patient's organs from different angles on the monitor screen and performs the surgery using laparoscopic instruments. It is widely used in clinical practice.

[0003] In the prior art, after the trocar is inserted, the cannula is placed at the puncture site, and then the puncture needle is pulled out and instruments such as laparoscopes are inserted. At this time, the cannula is placed at an angle at the puncture site, which is prone to slipping during the operation, causing the operation to be unable to proceed smoothly. Therefore, a trocar-type trocar for laparoscopy is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a laparoscopic telescopic trocar to solve existing problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a laparoscopic telescopic trocar, comprising a trocar housing and a cannula. A connecting plate is mounted on the lower surface of the trocar housing. The connecting plate has an annular structure, and a connecting end is mounted on its lower surface. The connecting end has a hollow internal structure. The cannula is mounted on the lower surface of the connecting end, and the interior of the cannula communicates with the interior of the connecting end. Mounting grooves are formed on both opposite surfaces of the cannula, and support springs are installed inside each of the two mounting grooves. A pressing plate is fixedly mounted on one end of each support spring. Threaded grooves are formed on the outer surfaces of both pressing plates, facilitating the release of the pressing plates after the cannula is inserted. The return of the supporting springs allows the pressing plates to be appropriately pushed out. The threaded grooves ensure stability between the cannula and the puncture site, facilitating the subsequent insertion of laparoscopic instruments and ensuring the smooth progress of the surgery.

[0007] Furthermore, the connecting plate, connecting end, and sleeve are integrally constructed. Two mounting bolts are installed on the lower surface of the connecting plate, and one end of each mounting bolt passes through the lower surface of the connecting plate and is screwed between the connecting plate and the main body of the puncture device shell.

[0008] Furthermore, the two mounting slots are arc-shaped slots, the two pressing plates are arc-shaped plate structures, and an air valve is installed on one surface of the connecting end, with one end of the air valve connected to the interior of the connecting end.

[0009] Furthermore, the upper surface of the puncture device housing is provided with a docking hole, which is connected to the interior of the connecting end, and a docking component is slidably installed inside the docking hole.

[0010] Furthermore, a puncture needle is installed on the lower surface of the docking component, a handle is installed on the upper surface of the docking component, one end of the puncture needle extends to the outside of the sleeve, and two docking plates are installed on the upper surface of the docking hole, the two docking plates having an arc-shaped plate structure.

[0011] Furthermore, each of the two mating plates has a positioning hole through one surface, and each of the two opposite surfaces of the mating parts has a sliding groove, the positions of the two sliding grooves corresponding to the positions of the two positioning holes.

[0012] Furthermore, positioning rods are slidably installed inside both of the slides, with one end of each positioning rod extending to the outside of the two slides, and the other end of each positioning rod extending to the outside of the mating plate through a positioning hole.

[0013] Furthermore, the two positioning rods are slidably connected to the two positioning holes respectively, and a return spring is installed between the other end of the two positioning rods and the bottom surface of the two sliding grooves. This facilitates the stability of the puncture needle during puncture and makes it easier to pull out the docking piece and puncture needle after puncture, thus improving the convenience of using the device.

[0014] This utility model has the following beneficial effects:

[0015] This invention, through its mounting groove, supporting spring, and pressing plate structure, facilitates the release of the pressing plate after the cannula is inserted. The supporting spring, in conjunction with its reset function, pushes the pressing plate out appropriately. The threaded groove ensures that the cannula remains stable at the puncture site, facilitating the subsequent entry of instruments such as laparoscopes and ensuring the smooth progress of the surgery.

[0016] This invention, through its docking plate, positioning rod, and return spring structure, facilitates the stability of the puncture needle during puncture and makes it easy to remove the docking piece and puncture needle after puncture, thus improving the convenience of using the device.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a telescopic trocar for laparoscopy according to the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the slide groove in this utility model;

[0021] Figure 3 This is a schematic diagram of the bottom structure of a telescopic trocar for laparoscopy according to the present invention;

[0022] Figure 4 This is a schematic diagram of the left side of a telescopic trocar for laparoscopy according to the present invention.

[0023] Figure 5 This is a top view schematic diagram of a telescopic trocar for laparoscopy according to the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of the mounting groove in this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Puncture device housing; 2. Connecting plate; 3. Connecting end; 4. Sleeve; 5. Mounting groove; 6. Support spring; 7. Pressing plate; 8. Threaded groove; 9. Mounting bolt; 10. Air valve; 11. Docking hole; 12. Docking plate; 13. Docking part; 14. Puncture needle; 15. Positioning hole; 16. Slide groove; 17. Positioning rod; 18. Return spring; 19. Handle. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Please see Figures 1-6 As shown, this utility model is a laparoscopic sleeve-type trocar, including a trocar shell body 1 and a cannula 4. A connecting plate 2 is installed on the lower surface of the trocar shell body 1. The connecting plate 2 is an annular plate structure. A connecting end 3 is installed on the lower surface of the connecting plate 2. The interior of the connecting end 3 is a hollow structure. The cannula 4 is installed on the lower surface of the connecting end 3. The interior of the cannula 4 is connected to the interior of the connecting end 3. There are mounting grooves 5 on both opposite surfaces of the cannula 4. A support spring 6 is installed inside each of the two mounting grooves 5. A pressing plate 7 is fixedly installed at one end of the support spring 6. There are threaded grooves 8 on the outer surface of both pressing plates 7. This allows the pressing plates 7 to be released after the cannula 4 is inserted. The pressing plates 7 are pushed out appropriately by the reset of the support spring 6. The threaded grooves 8 keep the cannula 4 stable at the puncture site, which facilitates the subsequent entry of laparoscopic instruments and ensures the smooth progress of the operation.

[0030] The connecting plate 2, the connecting end 3, and the sleeve 4 are integrally constructed. Two mounting bolts 9 are installed on the lower surface of the connecting plate 2. One end of each mounting bolt 9 passes through the lower surface of the connecting plate 2 and is screwed between it and the main body 1 of the puncture device shell.

[0031] The two mounting slots 5 are arc-shaped slots, the two pressing plates 7 are arc-shaped plate structures, and an air valve 10 is installed on one surface of the connecting end 3. One end of the air valve 10 is connected to the inside of the connecting end 3.

[0032] The upper surface of the puncture device housing 1 is provided with a docking hole 11, which is connected to the interior of the connecting end 3. A docking part 13 is slidably installed inside the docking hole 11.

[0033] A puncture needle 14 is installed on the lower surface of the docking part 13, and a handle 19 is installed on the upper surface of the docking part 13. One end of the puncture needle 14 extends to the outside of the sleeve 4. Two docking plates 12 are installed on the upper surface of the docking hole 11. The two docking plates 12 are arc-shaped plate structures.

[0034] Both mating plates 12 have a positioning hole 15 through one surface, and both opposite surfaces of the mating parts 13 have a sliding groove 16, the positions of the two sliding grooves 16 corresponding to the positions of the two positioning holes 15.

[0035] Positioning rods 17 are slidably installed inside both slide grooves 16. One end of each positioning rod 17 extends to the outside of the two slide grooves 16, and the other end of each positioning rod 17 extends to the outside of the docking plate 12 through the positioning hole 15.

[0036] Two positioning rods 17 are slidably connected to two positioning holes 15 respectively. The other end of the two positioning rods 17 is equipped with a return spring 18 between it and the bottom surface of the two slide grooves 16. This facilitates the stability of the puncture needle 14 during puncture and also makes it easier to pull out the docking part 13 and the puncture needle 14 after puncture, thus improving the convenience of using the device.

[0037] Please see Figures 1-6 As shown, this utility model is a laparoscopic sleeve-type trocar. Its usage is as follows: First, the trocar 14 is inserted through the docking hole 11. The trocar 14 passes sequentially through the trocar housing body 1, the connecting end 3, and the sleeve 4. During the downward movement of the docking piece 13, when the positioning rod 17 contacts the docking plate 12, the positioning rod 17 slides into the groove 16. At this time, the return spring 18 is compressed. Then, when the docking piece 13 is lowered to the docking hole 11, the positioning rod 17 reaches the positioning hole 15. At this time, the return spring 18 resets, pushing the positioning rod 17 out of the positioning hole 15, thus allowing the trocar to pass through. The puncture needle 14 is fixed in place. Then, the medical staff holds the main body 1 of the puncture device and uses two fingers to press the two pressing plates 7 into the installation groove 5. Then, the puncture needle 14 is used to puncture the patient. The cannula 4 is slid slightly left and right to allow it to slowly enter. When it enters the pressing plate 7, the fingers are released. At this time, the reset of the support spring 6 will push the pressing plate 7 out appropriately. With the help of the threaded groove 8, the cannula 4 and the puncture site are kept stable. Then, the two positioning rods 17 are pressed to disengage them from the positioning hole 15. The docking part 13 and the puncture needle 14 are pulled out to facilitate the entry of instruments such as laparoscopes later.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A laparoscopic telescopic trocar, comprising a trocar housing body (1) and a cannula (4), characterized in that: A connecting plate (2) is installed on the lower surface of the puncture device housing body (1). The connecting plate (2) is an annular plate structure. A connecting end (3) is installed on the lower surface of the connecting plate (2). The connecting end (3) has a hollow structure inside. The sleeve (4) is installed on the lower surface of the connecting end (3). The inside of the sleeve (4) is connected to the inside of the connecting end (3). The two opposite surfaces of the sleeve (4) are provided with mounting grooves (5). Support springs (6) are installed inside the two mounting grooves (5). A pressing plate (7) is fixedly installed at one end of the supporting spring (6). Threaded grooves (8) are provided on the outer surfaces of the two pressing plates (7).

2. The laparoscopic telescopic trocar according to claim 1, characterized in that, The connecting plate (2), connecting end (3) and sleeve (4) are integrally constructed. Two mounting bolts (9) are installed on the lower surface of the connecting plate (2). One end of the two mounting bolts (9) penetrates the lower surface of the connecting plate (2) and is screwed between the puncture device shell body (1).

3. The laparoscopic telescopic trocar according to claim 1, characterized in that, The two mounting slots (5) are arc-shaped slots, the two pressing plates (7) are arc-shaped plate structures, and an air valve (10) is installed on one surface of the connecting end (3). One end of the air valve (10) is connected to the inside of the connecting end (3).

4. The laparoscopic telescopic trocar according to claim 1, characterized in that, The upper surface of the puncture device housing body (1) is provided with a docking hole (11), which is connected to the interior of the connecting end (3), and a docking part (13) is slidably installed inside the docking hole (11).

5. A laparoscopic telescopic trocar according to claim 4, characterized in that, A puncture needle (14) is installed on the lower surface of the docking part (13), and a handle (19) is installed on the upper surface of the docking part (13). One end of the puncture needle (14) extends to the outside of the sleeve (4). Two docking plates (12) are installed on the upper surface of the docking hole (11). The two docking plates (12) are arc-shaped plate structures.

6. A laparoscopic telescopic trocar according to claim 5, characterized in that, Both of the two mating plates (12) have a positioning hole (15) through one surface, and both of the two opposite surfaces of the mating parts (13) have a sliding groove (16), the positions of the two sliding grooves (16) correspond to the positions of the two positioning holes (15).

7. A laparoscopic telescopic trocar according to claim 6, characterized in that, Positioning rods (17) are slidably installed inside both of the two slide grooves (16). One end of each positioning rod (17) extends to the outside of the two slide grooves (16), and the other end of each positioning rod (17) extends to the outside of the docking plate (12) through the positioning hole (15).

8. A laparoscopic telescopic trocar according to claim 7, characterized in that, The two positioning rods (17) are slidably connected to the two positioning holes (15) respectively, and a return spring (18) is installed between the other end of the two positioning rods (17) and the bottom surface of the two slide grooves (16).

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