CN209847332U - Laparoscope puncture sheath - Google Patents

Abstract

The utility model discloses a laparoscopic puncture sheath, which comprises a sheath body, a first annular air bag and a second annular air bag are sheathed on the sheath body, the first annular air bag is located below the second annular air bag, and the outer wall of the sheath is An annular groove is provided at the position of the first annular airbag, the first annular airbag is sleeved in the annular groove, and the first and second annular airbags are respectively connected with a first inflation tube and a second inflation tube; The outer wall of the sheath is equipped with a support device, the support device includes a fixed ring, a support foot and a locking ring, the fixed ring is a non-closed ring, which is an elastic metal sheet, and the utility model can prevent the puncture sheath from slipping out of the patient Outside the abdominal cavity, the insufflation tube installed in the puncture sheath can fill the abdominal cavity with gas to restore the insufflation during the operation, so that the operation can be carried out normally. The support device installed outside the sheath can be inserted into the patient's abdominal cavity in the puncture sheath Finally, the puncture sheath is supported, which is more convenient for the doctor to operate.

Description

A laparoscopic puncture sheath

technical field

The utility model relates to the technical field of medical instruments, in particular to a laparoscopic puncture sheath.

Background technique

Laparoscopic surgery is a minimally invasive surgery. It has become one of the most important surgical operations due to less bleeding, less trauma, and faster recovery. The necessary equipment for laparoscopic surgery is the laparoscopic trocar. The general laparoscopic trocar includes There are two parts, the puncture sheath and the puncture needle. When in use, insert the puncture needle into the puncture sheath to penetrate the abdominal wall through the puncture needle. During the penetration process, the puncture sheath is also brought into the abdominal cavity, and then the puncture needle is pulled out. The puncture sheath is temporarily placed in the abdominal cavity as a surgical channel to provide a passage for delivering gas, entering and exiting the endoscope and surgical instruments during the operation. Therefore, the stability of the puncture sheath is very important during the operation.

After the existing puncture sheath penetrates into the abdominal cavity, the movement of the patient's body (such as breathing, heart beating, etc.) will easily cause the puncture sheath to slip out of the abdominal cavity, affecting the operation process, and at the same time easily causing complications such as subcutaneous emphysema and subcutaneous hematoma in the patient , which increases the pain of the patient; before the operation, it is necessary to establish an artificial pneumoperitoneum to separate the peritoneal wall from the viscera, expand the abdominal cavity to facilitate the operation, and avoid damage to the viscera when the trocar punctures into the abdominal cavity. The puncture device repeatedly and alternately passes through the leak-proof membrane that is easy to damage, causing the pneumoperitoneum to drop and affect the surgical field. It is necessary to suspend the operation and re-establish the pneumoperitoneum before continuing the operation, which affects the operation and reduces the operation efficiency. At the same time, during the operation, the abdominal cavity After the mirror puncture sheath is inserted into the patient's abdominal cavity, the surgeon needs to hold the puncture sheath with one hand to perform the operation, which reduces the doctor's operation efficiency.

Utility model content

In order to solve the above problems, the utility model designs a laparoscopic puncture sheath, which can be firmly fixed on the patient's abdomen to prevent slippage. Gas in the abdominal cavity allows the operation to proceed normally, thereby improving the efficiency of the operation.

In order to achieve the above-mentioned technical purpose and realize the above-mentioned technical effect, the utility model is achieved through the following technical solutions:

A laparoscopic puncture sheath, comprising a sheath body, is characterized in that:

A first annular air bag and a second annular air bag are sleeved on the sheath, the first annular air bag is located below the second annular air bag, and an annular groove is arranged on the outer wall of the sheath at the position of the first annular air bag. The airbag is sleeved in the annular groove, and the first and second annular airbags are respectively connected with a first inflation tube and a second inflation tube;

The outer wall of the sheath is equipped with a supporting device, the supporting device includes a fixed ring, a supporting foot and a locking ring, the fixed ring is a non-closed ring, and is an elastic metal sheet, and at least three supporting feet are fixedly connected around the fixed ring , the lower end of the supporting leg is a metal strip that is flared outwards, and the joint with the fixing ring is elastic and can be closed inwardly. The locking ring is set outside the fixing ring, and the locking ring is formed by bending an elastic metal strip. The two ends are connected by locking bolts, and the locking ring can slide down to bring the supporting feet together;

The inner surface of the sheath is provided with a square strip-shaped groove along the central axis of the sheath body. The section of the strip-shaped groove is an arc, and an insufflation tube is fixedly installed in the strip-shaped groove.

Further, the lower end of the sheath has an oblique structure.

Further, the central angle corresponding to the circular arc of the section of the bar-shaped groove is larger than 180 degrees.

The beneficial effects of the utility model are: the utility model installs the first annular airbag and the second annular airbag on the inner and outer sides of the abdominal wall respectively, clamps the abdominal wall, thereby fixes the laparoscopic puncture sheath, and prevents the puncture sheath from slipping out of the patient's abdominal cavity , the insufflation tube installed in the puncture sheath can inflate gas into the abdominal cavity to restore the insufflation during the operation, so that the operation can proceed normally, avoiding the time waste caused by stopping the operation and restoring the insufflation, and improving the operation efficiency The supporting device installed outside the sheath can support the puncture sheath after the puncture sheath is inserted into the patient's abdominal cavity, instead of the doctor using hands to manually hold the puncture sheath, which is more convenient for the doctor to operate.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is the three-dimensional structure schematic diagram of this utility model.

Fig. 2 is a schematic cross-sectional structure diagram of the sheath body.

Fig. 3 is a structural schematic diagram of the supporting device.

Fig. 4 is a structural schematic diagram of the locking ring.

In the accompanying drawings, the names of the parts represented by each label are listed as follows:

1-Sheath body, 2-First annular airbag, 3-Second annular airbag, 4-First inflatable tube, 5-Second inflatable tube, 6-Support device, 7-Insufflation tube, 8-Strip groove , 9-ring groove, 10-fixing ring, 11-supporting foot, 12-locking ring, 13-locking bolt.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

Referring to Figures 1-4, a laparoscopic puncture sheath includes a sheath body 1, and is characterized in that:

The first annular airbag 2 and the second annular airbag 3 are sleeved on the sheath body 1, the first annular airbag 2 is located below the second annular airbag 3, and the outer wall of the sheath body 1 is located at the position of the first annular airbag 2. An annular groove 9, the first annular airbag 2 is sleeved in the annular groove 9, and the first annular airbag 2 and the second annular airbag 3 are respectively connected with a first inflation tube 4 and a second inflation tube 5;

The outer wall of the sheath body 1 is equipped with a support device 6, the support device 6 includes a fixed ring 10, a support foot 11 and a locking ring 12, the fixed ring 10 is a non-closed ring, and is an elastic metal sheet, the fixed ring 10 There are at least three supporting feet 11 fixedly connected around it, the lower ends of the supporting feet 11 are metal strips that open outwards, and the connection with the fixing ring 10 is elastic and can be closed inwards, and the locking ring 12 is sleeved outside the fixing ring 10 , the locking ring 12 is formed by bending an elastic metal strip, the two ends are connected by locking bolts 13, the locking ring 12 can slide downwards to close the supporting feet 11 together;

The inner surface of the sheath body 1 is provided with a square strip groove 8 along the central axis of the sheath body 1, the section of the strip groove 8 is an arc, and the gas abdomen tube 7 is fixedly installed in the strip groove 8 .

Further, the lower end of the sheath body 1 is a slanted structure.

Further, the central angle corresponding to the circular arc of the section of the strip-shaped groove 8 is larger than 180 degrees.

The specific embodiment of this utility model is: when in use, an opening is opened on the patient's abdominal cavity, and the lower end of the sheath body 1 is an oblique structure, which is convenient for the insertion of the puncture sheath. 3 is filled with gas, which can be inflated with a syringe or other pumping device, so that the second annular airbag 3 is inflated and fixed on the outer wall of the sheath body 1. When puncturing, the second annular airbag 3 can play a position-limiting role to prevent the puncture from being too deep Accidentally injure an organ or tissue in the abdominal cavity. Before the puncture, the first annular airbag 2 is in a contracted state and is located in the annular groove 9 on the outer wall of the sheath body 1, so that the first annular airbag 2 does not affect the puncture of the puncture sheath. After the annular airbag 2 enters the abdominal cavity, gas is filled into the first annular airbag 2 through the first inflation tube 4, and the first annular airbag 2 is inflated and stuck inside the abdominal wall, and the second annular airbag 3 can be moved, so that The abdominal wall is positioned between the first annular air bag 2 and the second annular air bag 3, the position of the puncture sheath is fixed, and the puncture sheath is prevented from slipping out of the patient's body.

After fixing the position of the puncture sheath, use the support device 6 to support the puncture sheath, move the position of the fixing ring 10 on the puncture sheath, so that the supporting foot 11 is supported on the patient's abdominal skin, and the locking ring 12 is set on the outside of the fixing ring 10, and pass Rotate the locking bolt 13, the locking ring 12 shrinks inwards and tightens the fixing ring 10, the fixing ring 10 is pressed against the outer wall of the puncture sheath, thereby locking the position of the support device 6, and the supporting feet 11 support the puncture sheath, so that the doctor does not need to artificially Hold the puncture sheath for surgical operation, so that the doctor can perform other operations with one more hand, which improves the efficiency of the operation. At the end of the operation, the locking ring 12 can be released, slide down to close the supporting feet 11 inward and then lock , which reduces the occupied volume and is easy to place.

Because during the operation, the repeated entry and exit of surgical instruments into and out of the puncture sheath will cause the pneumoperitoneum in the abdominal cavity to drop, which will affect the operation of the operation. It is carried out normally, avoiding the waste of time caused by stopping the operation and resuming the pneumoperitoneum, thereby improving the efficiency of the operation. The abdominal tube is firmly fixed in the bar groove to prevent falling off.

In the description of this specification, descriptions referring to the terms "one embodiment", "example", "specific example" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in the description of the present invention. In at least one embodiment or example. In this specification, schematic representations 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 any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not exhaust all details, nor do they limit the utility model to the specific implementations described. Obviously, many modifications and variations can be made based on the contents of this specification.

Claims (3)

1. A puncture sheath for laparoscope comprises a sheath body and is characterized in that:

the sheath body is sleeved with a first annular air bag and a second annular air bag, the first annular air bag is positioned below the second annular air bag, an annular groove is formed in the position, positioned on the first annular air bag, on the outer wall of the sheath body, the first annular air bag is sleeved in the annular groove, and the first annular air bag and the second annular air bag are respectively connected with a first inflation tube and a second inflation tube;

the supporting device is arranged on the outer wall of the sheath body and comprises a fixing ring, supporting legs and a locking ring, the fixing ring is in a non-closed ring shape and is made of elastic metal sheets, at least three supporting legs are fixedly connected to the periphery of the fixing ring, the lower ends of the supporting legs are outwards opened, the connecting parts of the supporting legs and the fixing ring are elastic and can be inwards folded, the locking ring is sleeved outside the fixing ring, the locking ring is formed by bending the elastic metal sheets, the two ends of the locking ring are connected through locking bolts, and the locking ring can slide downwards to fold the supporting legs together;

the internal surface of the sheath body is provided with a strip-shaped groove which is square along the central axis of the sheath body, the cross section of the strip-shaped groove is a circular arc, and a pneumoperitoneum tube is fixedly arranged in the strip-shaped groove.

2. The laparoscopic puncture sheath of claim 1, wherein: the lower end of the sheath body is of an inclined opening structure.

3. The laparoscopic puncture sheath of claim 1, wherein: the central angle corresponding to the arc of the section of the strip-shaped groove is larger than 180 degrees.