CN219147796U - Puncture outfit with extension device - Google Patents

Abstract

The utility model provides a puncture outfit with an extension device, and relates to the technical field of medical auxiliary instruments. The puncture outfit comprises a puncture sleeve, wherein a first channel is formed by the hollow inside of the puncture sleeve; the extension device is hollow and forms a second channel, and comprises a locking part and a telescopic body; the locking part is movably connected with the puncture sleeve, the first channel is communicated with the second channel, and the telescopic body can be lengthened and shortened. The surgeon may place the surgical instrument into the extension device, compress the extension device, and pass the surgical instrument through the second channel, the first channel, and into the patient's body cavity. The doctor does not need to search for the entrance of the puncture sleeve with a longer distance, the puncture sleeve utilizes the length of the puncture sleeve to avoid the interference of other equipment, the time for placing the surgical instrument into the body cavity of the patient is shortened, the surgical time is shortened, and the surgical risk is reduced.

Description

Puncture outfit with extension device

Technical Field

The utility model relates to the technical field of medical auxiliary instruments, in particular to a puncture outfit with an extension device.

Background

The puncture outfit is a surgical instrument which punctures the cavity wall of the body cavity and provides a channel for other surgical instruments to enter the body cavity, and belongs to a minimally invasive surgical instrument. The traditional puncture outfit generally comprises a puncture sleeve and a puncture core, a doctor firstly sleeves the puncture core on the puncture sleeve, and pushes the tip of the puncture outfit to penetrate through the skin by applying pressure to the puncture outfit until the puncture outfit enters a body cavity, the puncture core is pulled out, the puncture sleeve can be used as a minimally invasive instrument channel, so that various instruments and tools are introduced into the body cavity, and inflation is provided to expand the body cavity to achieve the pressure required by the operation.

In actual operation, the da vinci surgical robot and the doctor often need to operate the surgical instruments manually and perform the operation at the same time. At this time, a plurality of puncture outfits are activated, and in a first step, the surgical mechanical arm is introduced into the body cavity of the patient through one part of the puncture outfits, and in a second step, the doctor introduces the surgical instrument into the body cavity of the patient through the other part of the puncture outfits.

Because the surgical mechanical arm arranged in the first step is larger in size and located outside the body cavity of the patient, the sight is often easy to be blocked, the operation space is affected, and the entrance of the puncture cannula is far away from a doctor and has a smaller diameter, generally about 10 mm. Therefore, in performing the second procedure, the physician often needs to access the body through the surgical manipulator space and often takes a lot of additional time to align the access port of the cannula, extending the procedure time and increasing the risk of the procedure.

Disclosure of Invention

Aiming at the technical problems, the utility model provides the puncture outfit with the extension device, which is connected with the puncture sleeve through the telescopic extension device, so that a doctor can introduce surgical instruments into a body cavity of a patient more easily, the operation time is shortened, and the operation risk is reduced. The technical scheme is as follows:

the puncture outfit with the extension device comprises a puncture sleeve, wherein a first channel is formed in the puncture sleeve in a hollow mode; the extension device is hollow and forms a second channel, and comprises a locking part and a telescopic body; the locking part is movably connected with the puncture sleeve, the first channel is communicated with the second channel, and the telescopic body can be lengthened and shortened.

Further, the telescopic body comprises a flexible pipe and a spring which is spirally arranged on the flexible pipe along the axial direction, and one end of the spring is abutted against the end part of the puncture sleeve.

Further, the telescopic body is an organ pipe.

Still further, the organ pipe includes a plurality of pleats, the pleats being of V-shaped configuration or Ʊ -shaped configuration.

Further, the telescopic body comprises at least two telescopic pipes, and the telescopic pipes are sequentially and slidably sleeved.

Still further, a plurality of flexible pipes diameter reduces in proper order, and passes through the bush joint between two adjacent flexible pipes.

Further, the sizes of the telescopic pipes are sequentially reduced, the diameters of the telescopic pipes are reduced along the axial direction, and the adjacent two telescopic pipes are in butt joint through the inner wall and the outer wall.

Still further, the locking portion is provided with an elastic cord.

Still further, the puncture cannula comprises a head part and a tube body which are fixedly connected, a circle of steps are arranged on the outer side wall of the head part, and the steps of the steps face the tube body; or, the outer side wall of the head is provided with a pair or a plurality of positioning bulges.

Further, the locking part comprises a locking ring with an opening and a screw rod, a pair of screw holes are formed at two ends of the opening, and the screw rod is in threaded fit in the pair of screw holes.

Further, the puncture cannula comprises a head, a circle of groove is formed in the end face of the head, and one end of the extension device is located in the groove.

Further, a connecting piece is further arranged on the extension device and/or the puncture cannula, and the extension device is fixedly connected with the puncture cannula by the connecting piece when the extension device is in a compressed state.

The utility model has the beneficial effects that:

1. due to the design of the extension device, when a doctor introduces the surgical instrument into the body cavity of a patient, the doctor does not need to align the inlet of the puncture sleeve any more, only needs to directly align the inlet of the extension device, the distance between the inlet of the extension device and the doctor is closer, the alignment operation of the doctor is more convenient, and meanwhile, the extension device utilizes the length of the extension device and is also convenient to avoid the interference of other equipment such as a surgical mechanical arm, so that the operation of introducing the surgical instrument into the body cavity of the patient through the puncture outfit by the doctor is simplified, the operation time is saved, and the operation risk is reduced;

2. the body of the extension device can stretch out and draw back, thus can design into the specific length according to the actual use situation, the applicability is wider, and after doctor aligns, can also compress the extension device, make the extension device will not influence the effective length that the surgical instrument enters the body cavity of the patient, meet the requirement of the operation;

3. the extension device is movably connected with the puncture outfit through the locking part, is convenient to assemble and use, and can be independently replaced if damaged.

4. The extension device has simple structure and low manufacturing cost, and avoids excessive waste of resources.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments of the present utility model will be briefly described below.

FIG. 1 is a schematic overall structure of a first embodiment;

FIG. 2 is a schematic overall structure of a second embodiment;

FIG. 3 is a schematic overall structure of a third embodiment;

FIG. 4 is a schematic exploded view of a puncture cannula with a positioning protrusion according to an embodiment;

FIG. 5 is a schematic exploded view of the structure of the present utility model;

FIG. 6 is a schematic illustration of the structure of a flexible tube and spring in one embodiment;

FIG. 7 is a cross-sectional view of a flexible tube and a spring in one embodiment;

FIG. 8 is a schematic view of the structure of a telescoping tube in one embodiment;

FIG. 9 is a front cross-sectional view of a telescoping tube in one embodiment

The same reference numbers will be used throughout the drawings to refer to identical or similar parts or components.

1. A puncture cannula; 11. a head; 111. a step; 112. positioning the bulge; 113. a groove; 12. a pipe body; 13. a first channel; 14. a first inlet; 2. an extension device; 21. a telescopic body; 2111. a flexible tube; 2112. a spring; 212. an organ pipe; 213. a telescopic tube; 22. a locking part; 221. a flexible round shell; 222. an elastic rope; 23. a second channel; 24. a second inlet.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the accompanying drawings. Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout, or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

A puncture outfit with an extension device comprises a hollow puncture cannula 1 and a puncture core inserted into the puncture cannula 1.

As shown in fig. 1, the puncture cannula 1 comprises a head 11 and a tube body 12, a first channel 13 is formed in the puncture cannula 1 in a hollow mode, the head 11 and the tube body 12 are communicated coaxially, two ends of the puncture cannula 1 are opened, and the opening of the end of the head 11 is a first inlet 14. Various types of medical instruments and tools may be introduced into the patient's body cavity from the first inlet 14 through the first passageway 13.

The extension means 2 is open at both ends and hollow inside to form a second channel 23. The extension device 2 includes a telescopic body 21 and a locking portion 22 coaxially communicating with the telescopic body 21. One end of the telescopic body 21 is fixedly connected with the locking part 22, and the other end is opened to form a second inlet. 24 the locking part 22 is movably connected with the puncture cannula 1, and the telescopic body 21 can be lengthened and shortened.

In use, the puncture core is inserted into the puncture cannula 1, the tip of the puncture device is pushed through the skin by applying pressure to the puncture device until the puncture device enters the body cavity, the puncture core is withdrawn, the extension device 2 is connected to the puncture cannula 1 by the locking part 22, and the first channel 13 and the second channel 23 are communicated and coaxial. After introducing other surgical mechanical arms and other devices into the patient, the doctor does not need to search for the first inlet 14 of the puncture outfit with a longer distance, and only needs to put the surgical instrument into the second inlet of the extension device 2 with a shorter distance, apply pressure to the second inlet along the direction of the second channel 23, compress the length of the telescopic body 21, and the surgical instrument passes through the second channel 23 to enter the first channel 13 and further passes through the first channel 13 to enter the body cavity of the patient.

In one embodiment, the extension device 2 may be coupled to the puncture cannula 1 via the locking portion 22, and then the puncture cannula 1 and the puncture core may be mounted.

In one embodiment, as shown in fig. 5-7, the telescoping body 21 is comprised of a flexible tube 2111 and a spring 2112 mounted on the flexible tube 2111 in a spiral in the direction of the second channel 23, with one end of the spring 2112 abutting the end of the puncture cannula 1. When the second inlet end applies pressure to the telescopic body 21 in the direction of the second passage 23, the spring 2112 is compressed in synchronization with the flexible tube 2111, thereby shortening the length of the telescopic body 21. The flexible tube 2111 may be a circular tube made of plastic film.

In one embodiment, as shown in fig. 2, the telescopic body 21 is an organ pipe 212, a pulling force is applied to the telescopic body 21 along the direction of the second channel 23, the organ pipe 212 is unfolded, and the extension device 2 is lengthened; pressure is applied to the organ pipe 212 in the direction of the second channel 23, the organ pipe 212 is folded up and the extension device 2 is shortened. Organ tube 212 includes a plurality of pleats, which may be, for example, V-shaped in configuration, or Ʊ -shaped in configuration. Of course, other structures may be adopted, and this embodiment is not limited thereto. In addition, instead of a single structure, two or more structures may be selected and combined in a certain manner to obtain a more flexible telescopic body 21.

In one embodiment, the telescopic body 21 includes a first telescopic tube 213, a second telescopic tube 213, and a third telescopic tube 213 connected in sequence, and one end of the first telescopic tube 213 is a second inlet, and one end of the third telescopic tube 213 is connected to the locking portion 22. The first 213, second 213 and third 213 bellows decrease in diameter in sequence. A first bushing is fixedly connected in the first telescopic pipe 213, a second bushing which is abutted against the first bushing is fixedly connected outside the second telescopic pipe 213, and one end of the second telescopic pipe 213 is clamped in the first telescopic pipe 213; a third bushing is fixedly connected in the second telescopic tube 213, and a fourth bushing abutting against the third bushing is fixedly connected outside the third telescopic tube 213, so that one end of the third telescopic tube 213 is clamped in the second telescopic tube 213. The outer diameter of the second bushing is greater than or equal to the inner diameter of the first bushing and less than the inner diameter of the first telescoping tube 213, and the outer diameter of the fourth bushing is greater than or equal to the inner diameter of the third bushing and less than the inner diameter of the second telescoping rod. The first bush is arranged at the end part of the first telescopic tube 213, which is far away from the second inlet, the second bush and the third bush are respectively arranged at the two ends of the second telescopic tube 213, and the fourth bush is arranged at the end of the third sleeve, which is far away from the locking part 22, so that the first telescopic tube 213, the second telescopic tube 213 and the third telescopic tube 213 are sequentially connected to form a slidable sleeve joint.

Applying pressure to the telescopic body 21, the second telescopic tube 213 extending into the first telescopic tube 213, the third telescopic tube 213 extending into the second telescopic tube 213, whereby the extension apparatus 2 is shortened; a tensile force is applied to the telescopic body 21, the second telescopic tube 213 extends out of the first telescopic tube 213 and is clamped with the first telescopic tube 213 through the first bushing and the second bushing, and the third telescopic tube 213 extends out of the second telescopic tube 213 and is clamped with the second telescopic tube 213 through the third bushing and the fourth bushing, so that the extension device 2 is extended.

In one embodiment, telescoping body 21 includes a first telescoping tube 213, a second telescoping tube 213, and a third telescoping tube 213 that are nested in sequence. The diameters of the first bellows 213, the second bellows 213, and the third bellows 213 all decrease in the axial direction. The minimum inner diameter of the first telescopic tube 213 is smaller than or equal to the maximum outer diameter of the second telescopic tube 213, so that one end of the maximum outer diameter of the second telescopic tube 213 is clamped inside one end of the minimum outer diameter of the first telescopic tube 213; the minimum inner diameter of the second telescopic tube 213 is smaller than or equal to the maximum outer diameter of the third telescopic tube 213, so that one end of the maximum outer diameter of the third telescopic tube 213 is clamped inside one end of the minimum inner diameter of the second telescopic tube 213.

Applying pressure to the telescopic body 21, the second telescopic tube 213 extending into the first telescopic tube 213, the third telescopic tube 213 extending into the first telescopic tube 213, whereby the extension apparatus 2 is shortened; a tensile force is applied to the telescopic body 21, and the first telescopic tube 213, the second telescopic tube 213, and the third telescopic tube 213 are sequentially engaged, so that the extension apparatus 2 is extended.

As shown in fig. 3 and 8-9, the number of telescopic tubes can be six.

The lengths of the first telescopic tube 213, the second telescopic tube 213 and the third telescopic tube 213 in the above embodiments may be the same or different, for example, the length of the first telescopic tube 213 is slightly larger than the lengths of the other two telescopic tubes so as to be fully stored when the extension apparatus 2 is compressed.

In one embodiment, as shown in fig. 7, the locking part 22 includes a flexible circular case 221 and an elastic string 222 fixed around the outer surface of the flexible circular case 221. The head 11 of the puncture cannula 1 extends into the locking part 22, and the elastic cord 222 is tightened by its own elastic deformability and connected to the head 11, whereby the puncture cannula 1 and the extension device 2 are connected. The elastic cord 222 may be a cord-like structure having elasticity, such as a rubber cord or a rubber band, and the flexible round case 221 of the locking portion 22 may be a thin ring made of rubber.

In one embodiment, as shown in fig. 4, the diameter of the end of the head 11 of the puncture cannula 1 near the tube body 12 is smaller than the end of the head 11 where the second inlet is opened, so that a circumferential step 111 is formed on the outer side wall of the head 11. When the extension device 2 is connected with the puncture cannula 1, the locking part 22 is sleeved from the head 11 of the puncture cannula 1, the elastic rope 222 is tensioned until the locking part 22 is sleeved to the step 111 of the head 11, and the elastic rope 222 is contracted and is tightly attached to the step 111, so that the connection between the extension device 2 and the puncture cannula 1 is completed.

In one embodiment, as shown in FIG. 4, the outer sidewall of the head 11 of the puncture cannula 1 adjacent to the first inlet 14 is provided with a positioning protrusion 112. The positioning projection 112 may be a projection provided around the outer side wall, or two squares symmetrical to the outer side wall. When the extension device 2 is connected with the puncture cannula 1, the locking part 22 is sleeved from the head 11 of the puncture cannula 1, the elastic rope 222 is tensioned until the locking part 22 is sleeved on the positioning protrusion 112 of the head 11, and the elastic rope 222 is contracted and is tightly attached to one side of the positioning protrusion 112, which is close to the tube body 12 of the puncture cannula 1, so that the connection between the extension device 2 and the puncture cannula 1 is completed.

In one embodiment, the locking portion 22 includes a locking ring having an opening, and a pair of screw holes formed at both ends of the opening, and a screw rod threadedly engaged in the pair of screw holes to achieve the tightening or loosening effect. When in use, the locking part 22 is sleeved on the head 11 of the puncture cannula 1, the locking ring is screwed by the rotating screw, and the locking part 22 and the head 11 of the puncture cannula 1 are locked, so that the extension device 2 is connected with the puncture outfit.

In one embodiment, as shown in fig. 5, the end surface of the head 11 of the puncture cannula 1 is provided with a circle of grooves 113, and one end of the extension device 2 is positioned in the grooves 113. The end of the extension means 2 adjacent the second inlet and the head 11 of the puncture cannula 1 are provided with a pair of mating connectors. The connector may be a pair of magnets, a set of snaps, a set of loops, etc. In use, the extension device 2 is compressed and placed in the groove 113, and the extension device 2 is fixedly connected with the puncture cannula 1 through the connecting piece. The design of the recess 113 avoids the extension device 2 from affecting the length of the surgical instrument extending into the body cavity, and the design of the connector reduces the displacement of the extension device 2 without requiring additional effort from the physician to control the position of the extension device 2. The connector may be mounted on the extension device 2 or the puncture cannula 1 alone, and may be in the shape of a fish hook.

The foregoing is only a partial embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims (12)

1. A puncture outfit with an extension device, the puncture outfit comprises a puncture cannula, and a first channel is formed in the puncture cannula in a hollow mode; the extension device is characterized in that a second channel is formed in the extension device in a hollow mode, and the extension device comprises a locking part and a telescopic body; the locking part is movably connected with the puncture sleeve, the first channel is communicated with the second channel, and the telescopic body can be lengthened and shortened.

2. The puncture outfit with an extension device according to claim 1, wherein the telescopic body comprises a flexible tube and a spring spirally mounted on the flexible tube in an axial direction, one end of the spring being abutted against an end of the puncture cannula.

3. The puncture outfit with an extension device according to claim 1, wherein the telescoping body is an organ tube.

4. A puncture device with an extension device as recited in claim 3, wherein the organ tube comprises a plurality of pleats, the pleats being of V-shaped configuration or Ʊ -shaped configuration.

5. The puncture outfit with an extension device according to claim 1, wherein the telescopic body comprises at least two telescopic tubes, and a plurality of telescopic tubes are sequentially and slidably sleeved.

6. The puncture outfit with an extension device according to claim 5, wherein a plurality of the telescopic tubes are sequentially reduced in diameter, and two adjacent telescopic tubes are clamped by a bushing.

7. The puncture outfit with an extension device according to claim 5, wherein a plurality of the telescopic tubes are sequentially reduced in size and reduced in diameter along the axial direction, and two adjacent telescopic tubes are abutted through the inner wall and the outer wall.

8. A puncture device with an extension device according to any one of claims 1 to 7, characterized in that the locking part is provided with an elastic cord.

9. The puncture outfit with the extension device according to claim 8, wherein the puncture cannula comprises a head part and a tube body which are fixedly connected, a circle of steps are arranged on the outer side wall of the head part, and the steps of the steps face the tube body; or, a pair of or a plurality of positioning protrusions are arranged on the outer side wall of the head.

10. The puncture outfit with an extension device according to any one of claims 1 to 7, wherein the locking part comprises a locking ring having an opening and a screw, a pair of screw holes are opened at both ends of the opening, and the screw is screw-fitted into the pair of screw holes.

11. The puncture device with an extension means according to any one of claims 1 to 7, wherein the puncture cannula comprises a head portion, an end surface of which is provided with a ring of grooves, and one end of the extension means is located in the groove.

12. The puncture outfit with an extension device according to claim 11, wherein a connecting piece is further arranged on the extension device and/or the puncture cannula, and the connecting piece fixedly connects the extension device with the puncture cannula when the extension device is in a compressed state.

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