Puncture outfit device with suturing function

Abstract

The utility model discloses a puncture outfit device with a suturing function, which relates to the technical field of medical instruments and comprises a puncture cannula, a puncture cone and a suturing needle, the puncture cone can penetrate through a middle hole of the puncture cannula, and a pair of positioning channels is arranged on the puncture cannula. The suture needle can penetrate through the positioning channel to grasp the suture in the incision and pull the suture out of the incision. Through the design of the positioning channel, a puncture cone is not needed in the suturing process, operation is easy, convenient and safer, and meanwhile treatment cost is reduced; the pneumoperitoneum of the whole operation process is maintained, the stability of the visual field under the endoscope is guaranteed, and the device is suitable for channel establishment and incision tissue suture in the field of minimally invasive surgery; a passage for a suture needle is designed on the puncture cannula, so that the purpose of one instrument with multiple purposes is achieved, and influence on healing of an incision due to repeated injury of incision tissues caused by suture is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a trocar device with a suture function. Background Art

[0002] During abdominal examinations, abdominal surgeries, and other minimally invasive or surgical procedures, trocars are widely used. A trocar can establish an access channel in the abdominal wall of the human body to allow a laparoscope or other surgical instruments, such as laparoscopic surgical knives, scissors, etc., to enter the abdominal cavity for corresponding examinations or surgical operations.

[0003] The overall structure of the trocar includes a trocar cannula and a trocar cone inserted into the cannula. The clinical use method of the trocar is as follows: A small incision is made in the patient's abdomen. The doctor holds the end of the trocar cone and applies a puncture operating force to drive the trocar cone and the cannula into the abdominal cavity together. Then, the trocar cone is withdrawn, and a channel for surgical instruments to enter and exit the abdominal cavity is formed inside the cannula. After the operation, the trocar is withdrawn, and the abdominal fascia is sutured with a suture needle.

[0004] The disclosed trocar patents with suture functions can be roughly divided into three categories: When performing sutures in the first category of surgeries, it is necessary to withdraw the trocar cannula and insert the trocar cone for suturing, which is likely to cause multiple injuries to the incision tissue and affect the healing of the incision tissue; When performing sutures in the second category of surgeries, it is necessary to insert the trocar cone through the trocar cannula to establish a suture channel for suturing. The operation is complex, and the inserted trocar cone may infect internal organs; When performing sutures in the third category of surgeries, it is necessary to remove the ear cap to cause air leakage. Due to the air leakage, the insufflation of the pneumoperitoneum is insufficient, resulting in the risk of accidental injury to internal organs by the suture needle during puncture. Currently, there are many related technologies for trocars with sutures, but there is no trocar that can prevent accidental operation of the suture needle from damaging internal organs. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a trocar device with a suture function to solve the problems existing in the above-mentioned prior art, so that suturing does not require a trocar cone, and the operation is simple and safer.

[0006] To achieve the above purpose, the utility model provides the following scheme:

[0007] The utility model provides a trocar device with a suture function, which includes a trocar cannula, a trocar cone, and a suture needle. The trocar cone can penetrate the middle hole of the trocar cannula. A pair of positioning channels are arranged on the trocar cannula. The suture needle can penetrate the positioning channels to grasp the suture inside the incision and pull the suture out of the incision.

[0008] Preferably, the trocar cannula includes a trocar hub and a trocar tube. The trocar hub is connected to the upper port of the trocar tube, and the middle hole of the trocar hub is communicated with the trocar tube.

[0009] Preferably, the lower end of the puncture tube base is a frustum that gradually becomes smaller from top to bottom, and the angle between the generatrix of the frustum and the horizontal plane is 45° - 80°.

[0010] Preferably, the positioning channel includes two groups of externally positioned channels, an upper positioning hole, and a lower positioning hole that are collinearly arranged. The externally positioned channels are symmetrically arranged on both sides of the frustum. A pair of the upper positioning holes and a pair of the lower positioning holes are symmetrically arranged on the puncture tube. The height of the upper positioning hole is greater than the height of the lower positioning hole. The externally positioned channels, the upper positioning hole, and the lower positioning hole form two X-shaped intersecting positioning channels.

[0011] Preferably, the aperture of the externally positioned channel is 2 mm - 10 mm, and the distance between the upper positioning hole and the lower positioning hole is at least 5 mm.

[0012] Preferably, both the upper positioning hole and the lower positioning hole are waist-shaped holes, and the waist-shaped holes are arranged along the axial direction of the puncture tube. The length of the waist-shaped hole is at least 5 mm.

[0013] Preferably, silicone films are hermetically arranged on both the upper positioning hole and the lower positioning hole.

[0014] Preferably, the length of the puncture tube is 5 cm - 20 cm.

[0015] Preferably, an operating handle is connected to the rear end of the needle tube of the suture needle. The size of the operating handle and the rear end of the needle tube is greater than the inner diameter of the externally positioned channel, so that the needle tube extends into the fascia layer of the incision by no more than 10 mm.

[0016] Preferably, a grasping forceps is inserted into the needle tube of the suture needle. The front end of the needle tube has a tip that can penetrate the sebaceous layer and the fascia layer at the incision.

[0017] The present utility model has achieved the following technical effects compared with the prior art:

[0018] Through the design of the positioning channel, the suture process of the present utility model does not require the use of a puncture cone, the operation is simple and safer, and at the same time, the treatment cost is reduced; the pneumoperitoneum during the entire surgical process is maintained, ensuring the stability of the field of view under the endoscope, and is applicable to the establishment of channels and the suture of incision tissues in the field of minimally invasive surgery; the threading channel of the suture needle is designed on the puncture sleeve, achieving the purpose of multi-purpose use of one instrument and avoiding the multiple injuries to the incision tissues caused by suture, which affects the healing of the incision. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the suture operation of the trocar device with suture function in the embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure after the incision is sutured in the embodiment of the present invention;

[0022] Figure 3 It is a schematic diagram of the usage structure of the puncture cone and the puncture cannula in the embodiment of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the suture needle in the embodiment of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the puncture cannula in the embodiment of the present invention;

[0025] Figure 6 It is a schematic layout diagram of the structure of the positioning channel in the embodiment of the present invention;

[0026] In the figure: 1 - puncture tube seat, 2 - puncture tube, 3 - puncture cone, 4 - suture needle, 5 - outer positioning channel, 6 - upper positioning hole, 7 - lower positioning hole, 8 - needle tube, 9 - operation handle, 10 - grasping forceps, 11 - sebaceous layer, 12 - fascia layer, 13 - suture. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] The purpose of the present invention is to provide a trocar device with suture function to solve the problems existing in the prior art, so that suture can be performed without a puncture cone, with simple operation and higher safety.

[0029] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0030] AsFigures 1 to 6 As shown, in this embodiment, a trocar device with a suture function is provided, which includes a trocar cannula, a trocar cone 3 and a suture needle 4. The trocar cone 3 can penetrate through the central hole of the trocar cannula. A pair of positioning channels are provided on the trocar cannula. The suture needle 4 can penetrate through the positioning channels to grasp the suture 13 inside the incision and pull the suture 13 out of the incision.

[0031] As an alternative, in this embodiment, the trocar cannula includes a trocar base 1 and a trocar tube 2. The trocar base 1 is connected to the upper port of the trocar tube 2, and the central hole of the trocar base 1 is communicated with the trocar tube 2.

[0032] As an alternative, in this embodiment, the lower end of the trocar base 1 is a frustum cone that gradually becomes smaller from top to bottom. The included angle between the generatrix of the frustum cone and the horizontal plane is 45° - 80°, which is convenient for suture 13 operation based on the trocar cannula.

[0033] As an alternative, in this embodiment, the positioning channels include two groups of outer positioning channels 5, upper positioning holes 6 and lower positioning holes 7 that are collinearly arranged. The outer positioning channels 5 are symmetrically arranged on both sides of the frustum cone. A pair of upper positioning holes 6 and a pair of lower positioning holes 7 are symmetrically arranged on the trocar tube 2. The height of the upper positioning hole 6 is greater than the height of the lower positioning hole 7. The outer positioning channels 5, upper positioning holes 6 and lower positioning holes 7 form two X-shaped staggered positioning channels.

[0034] As an alternative, in this embodiment, the aperture of the outer positioning channel 5 is 2 mm - 10 mm, and the distance between the upper positioning hole 6 and the lower positioning hole 7 is at least 5 mm.

[0035] As an alternative, in this embodiment, both the upper positioning hole 6 and the lower positioning hole 7 are waist-shaped holes, and the waist-shaped holes are arranged along the axial direction of the trocar tube 2. The length of the waist-shaped holes is at least 5 mm.

[0036] As an alternative, in this embodiment, silicone films are hermetically arranged on both the upper positioning hole 6 and the lower positioning hole 7, which maximally ensures the airtightness during the suture process and reduces the surgical risk.

[0037] As an alternative, in this embodiment, the length of the trocar tube 2 is 5 cm - 20 cm.

[0038] As an alternative, in this embodiment, an operating handle 9 is connected to the rear end of the needle tube 8 of the suture needle 4. The sizes of the operating handle 9 and the rear end of the needle tube 8 are larger than the inner diameter of the outer positioning channel 5, so that the penetration of the needle tube 8 into the fascia layer of the incision is not more than 10 mm. In this embodiment, the needle tube 8 of the suture needle 4 gradually becomes thicker towards the operating handle 9 end, which limits the length of its penetration into the body, making the suture during the operation safer and not stabbing the internal organs.

[0039] As an alternative, in this embodiment, a grasping forceps 10 is inserted into the needle tube 8 of the suture needle 4. The front end of the needle tube 8 has a tip that can penetrate through the sebaceous layer 11 and the fascia layer 12 at the incision. In this embodiment, the suture needle 4 is preferably an abdominal wall suture needle, and there is a button on the handle for telescopic operation of the grasping forceps 10.

[0040] The specific operation process of the trocar device with suture function in this embodiment is as follows: Insert the puncture cone 3 into the trocar, and insert it into the incision where the epidermis has been incised and enter the body to establish a channel; Pull out the puncture cone 3 to establish pneumoperitoneum, and the surgical instrument enters the body through the trocar for surgical operation. After the surgical operation is completed; When suturing the incision, one end of the suture 13 is clamped by the suture needle 4 and enters the body from one side through the positioning channel 5, the upper positioning hole 6, and the lower positioning hole 7. One end of the suture 13 remains in the body and the other end remains outside the body. After the suture needle 4 is pulled out, it enters the body from the positioning channel on the other side and clamps one end of the suture 13 and brings it outside the body. After removing the trocar, tie a knot for the suture 13, and the operation is completed.

[0041] In this embodiment, the outer positioning channel 5, the upper positioning hole 6, and the lower positioning hole 7 form a three-point linear positioning channel (suture channel) through the trocar. There is no need to make a suture channel on the puncture cone 3, which reduces the surgical operation steps, and at the same time reduces the risk of patient infection and the burden on the patient; The operating handle 9 end of the suture needle 4 is designed to gradually thicken so that the length of the suture needle 4 entering the body is limited, minimizing the risk of damaging internal organs to the greatest extent.

[0042] In the present utility model, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; At the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A trocar device with a suturing function, characterized in that: The puncture cannula comprises a puncture cone and a suturing needle. The puncture cone can pass through the middle hole of the puncture cannula. The puncture cannula is provided with a pair of positioning channels. The suturing needle can pass through the positioning channels to grab the suture inside the incision and pull the suture out of the incision.

2. The trocar device with a suture function according to claim 1, characterized in that: The puncture cannula comprises a puncture tube seat and a puncture tube. The puncture tube seat is connected to the upper end of the puncture tube, and the middle hole of the puncture tube seat is communicated with the puncture tube.

3. The puncture device with suturing function according to claim 2, characterized in that: The lower end of the puncture tube seat is in the form of a frustum that becomes smaller from top to bottom, and the angle between the cone generatrix of the frustum and the horizontal plane is 45°-80°.

4. The trocar device with a suture function according to claim 3, characterized in that: The positioning channel includes two groups of collinearly arranged external positioning channels, upper positioning holes and lower positioning holes. The external positioning channels are symmetrically arranged on both sides of the frustum. A pair of upper positioning holes and a pair of lower positioning holes are symmetrically arranged on the puncture tube. The height of the upper positioning hole is greater than that of the lower positioning hole. The external positioning channel, the upper positioning hole and the lower positioning hole form two positioning channels arranged in an X-shape.

5. The trocar device with suture function according to claim 4, wherein: The aperture of the outer positioning channel is 2 mm to 10 mm, and the distance between the upper positioning hole and the lower positioning hole is at least 5 mm.

6. The trocar device with suture function according to claim 4, wherein: The upper positioning hole and the lower positioning hole are both waist-shaped holes, and the waist-shaped holes are arranged along the axial direction of the puncture tube, and the length of the waist-shaped holes is at least 5 mm.

7. The trocar device with suture function according to claim 4, characterized in that: The upper positioning hole and the lower positioning hole are both sealed with a silicone film.

8. The puncture device with suturing function according to claim 4, characterized in that: The length of the puncture tube is 5cm-20cm.

9. The trocar device with a suture function according to claim 4, characterized in that: The rear end of the needle tube of the suture needle is connected to an operating handle. The size of the operating handle and the rear end of the needle tube is larger than the inner diameter of the external positioning channel, so that the needle tube extends into the fascia layer of the incision by no more than 10 mm.

10. The trocar device with suture function according to claim 1, characterized in that: A grasping forceps is inserted into the needle tube of the suture needle, and the front end of the needle tube is provided with a pointed end capable of passing through the sebum layer and the fascia layer at the incision.

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