Sleeve type puncture outfit for laparoscope

Abstract

The utility model relates to the field of puncture outfits, in particular to a sleeve type puncture outfit for a laparoscope, and solves the technical problems that the size of an operation channel is inconvenient to adjust due to an integrated structure of an existing puncture outfit and a sheathing canal, the whole puncture outfit needs to be discarded after being polluted, and the use cost of a single puncture outfit is high. According to the technical scheme, the sleeve type puncture outfit for the laparoscope comprises a puncture outfit shell main body, a puncture needle, a grip, a sheathing canal, a sleeve, an outer edge plate, a pressing ring, an alignment mechanism, a quick assembly assembly and an auxiliary heating assembly; the sleeve structure is used as a connecting piece between the puncture outfit shell body and the sheathing canal, sheathing canals and puncture needles of different specifications can be independently replaced within the channel size range of the puncture outfit shell body so as to form operation channels of different sizes, and proper operation instruments can be conveniently provided to enter and exit. And compared with the prior art that the whole puncture outfit is polluted and discarded, the use cost of the puncture outfit is reduced.

Description

Technical Field

[0001] The utility model relates to the field of puncture instruments, in particular to a sleeve-type puncture instrument for laparoscopy. Background Art

[0002] The laparoscope is inserted into the abdominal cavity through the channel formed by the puncture sheath. Using digital camera technology, the images captured by the laparoscope lens are transmitted to the post-stage signal processing system through optical fibers and displayed in real time on a dedicated monitor. The doctor then analyzes and judges the patient's condition through the images of the patient's organs from different angles displayed on the monitor screen, and uses laparoscopic instruments to perform surgery. It is widely used in clinical practice.

[0003] Laparoscopic surgery requires the use of a large number of different surgical instruments. These surgical instruments, including the laparoscope, need to enter and exit the abdominal cavity through the channel formed by the puncture sheath. However, the current puncture sheath structure is connected and fixed as an integral unit. If the size of the surgical channel needs to be adjusted, the puncture sheath can only be replaced as a whole. After use, the puncture sheath part is contaminated and needs to be discarded as a whole, which results in a high cost of use.

[0004] Therefore, in view of the fact that the integrated structure of the existing puncture device and sheath is not convenient for adjusting the size of the surgical channel and can only be replaced as a whole, and must be discarded as a whole after being contaminated, and the high cost of using a single puncture device, a split puncture device with a sleeve and a quick-release structure can be designed, which is convenient for replacing sheaths of different apertures as needed to adjust the surgical channel, and the contaminated sheaths are discarded separately, and the main structure of the puncture device can be retained, thereby reducing the cost of use. Utility Model Content

[0005] In order to overcome the problem that the existing integrated structure of the trocar and sheath is not convenient for adjusting the size of the surgical channel, the entire trocar must be discarded after being contaminated, and the cost of using a single trocar is high.

[0006] The technical scheme of the utility model is: a sleeve-type puncture device for laparoscopy, comprising a puncture device shell body, a puncture needle, a grip, a sheath, a sleeve, an outer edge plate, a compression ring, an alignment mechanism, a quick-release assembly, and an auxiliary heating assembly; the lower end of the puncture device shell body is integrally fixedly connected with a sleeve, the upper end of the sheath is fixedly connected with a compression ring, the compression ring is inserted into the sleeve from bottom to top, an alignment mechanism and a quick-release assembly are arranged between the sleeve and the compression ring, the sleeve and the sheath are both provided with an auxiliary heating assembly, the upper edge of the sleeve is fixedly connected with an outer edge plate, the upper end of the puncture needle is fixedly installed with a grip, and the puncture needle penetrates along the internal channel of the puncture device shell body and passes out from the bottom of the sheath.

[0007] Preferably, a sheath tube with a suitable inner diameter is selected, and then the compression ring on the sheath tube is inserted into the sleeve from bottom to top. By setting the alignment mechanism, a horizontal lock is formed between the sheath tube and the sleeve, and the quick-release assembly is ensured to be in place. After the compression ring and the sleeve are quickly connected into a whole using the quick-release assembly, the puncture needle is inserted downward from the top of the puncture device shell body and exited from the bottom of the sheath tube to the patient's abdominal surgical position. At the same time, the sheath tube is pressed into the wound together with the puncture needle. After the puncture needle is pulled out, the sheath tube forms an entry and exit channel for the surgical instrument box and laparoscope at the abdominal wound.

[0008] Preferably, the alignment mechanism includes an alignment pin and an alignment hole; the alignment pin is fixedly connected to the top wall of the sleeve and eight of them are arranged around the circumference; the bottom end of the alignment pin is a blunt round structure; the upper surface of the pressing ring is provided with an alignment hole which penetrates longitudinally to the bottom of the pressing ring; the upper end of the alignment hole is a trumpet-shaped opening structure and eight of them are arranged around the pressing ring; the alignment pin is plugged into the corresponding alignment hole; when the pressing ring is inserted into the sleeve, a one-to-one plug-in correspondence between the alignment pin and the alignment hole is used to form a horizontal limit to prevent the pressing ring from rotating relative to the sleeve; and by using the blunt round structure at the end of the alignment pin and the figure-eight end opening structure of the alignment hole, the alignment pin can more easily enter the alignment hole when the pressing ring is plugged in opposite directions.

[0009] Preferably, the quick-release assembly includes a screw hole, a pin hole, and a fastening screw; the screw hole is opened on the outer wall of the sleeve, and eight pin holes are opened around the outer wall of the pressing ring. The fastening screw is connected through the inner thread of the screw hole and inserted into the pin hole to fix the sleeve and the pressing ring. The pin hole and the alignment hole are also in a one-to-one correspondence. After the pressing ring is inserted into the sleeve, the screw hole is automatically aligned with one of the pin holes on the pressing ring. The fastening bolt is screwed into the screw hole until it enters the pin hole to completely lock the pressing ring and the sleeve.

[0010] Preferably, the quick-release assembly also includes a rotating handle and a finger hole; the pier head of the fastening screw is movably connected to a rotating handle with a semicircular structure through a rotating shaft, and a finger hole for inserting a finger is provided in the middle of the rotating handle. When tightening the fastening screw, first move the rotating handle to a horizontal state by hand, and then pinch the rotating handle with two fingers, or insert a finger into the finger hole to rotate the rotating handle, so as to facilitate the application of force and drive the fastening screw casting to be screwed into the screw hole.

[0011] Preferably, the auxiliary heating component includes a heating tube and a sealing ring; an annular groove is provided at the upper end of the outer edge plate, a heating tube is embedded in the annular groove, a sealing ring for pressing and fixing the heating tube is embedded at the upper end of the annular groove, the heating tube is powered by an external power supply, generates heat throughout the puncture and surgery and maintains the temperature at 35°C-37°C, the sealing ring is used to close the annular groove to reduce direct heat loss to the outside.

[0012] Preferably, the auxiliary heating component also includes a thermal wire; the alignment needle is a copper metal part and the upper end is in contact with the heating tube for heat transfer, the inner wall of the sheath is coated with a longitudinally arranged thermal wire, the upper end of the thermal wire is in contact with the alignment needle for heat transfer, the heating tube transfers heat to the thermal wire through the alignment needle, and the thermal wire radiates outward to the sheath, so that the surface temperature of the sheath close to the patient's wound is maintained at 35°C-37°C, preventing the wound tissue from being open and contracting for a long time and reducing the patient's discomfort.

[0013] Preferably, a circle of notches is provided at the lower edge of the sleeve, and the lower edge of the sleeve is covered with a gasket with an arc-shaped lower surface. The inner wall of the gasket is integrally connected with a flange embedded in the notch. The sheath is inserted into the abdominal wound until the lower edge of the sleeve contacts the skin. At this time, the flexible material of the gasket is used to form a protective layer between the skin surface and the sleeve to prevent skin friction damage.

[0014] Beneficial effects of the utility model:

[0015] 1. The sleeve structure is used as a connector between the trocar housing body and the sheath tube, so that sheath tubes and puncture needles of different specifications can be replaced separately within the channel size range of the trocar housing body according to surgical needs to form surgical channels of different sizes, which is convenient for providing appropriate surgical instruments to enter and exit. At the same time, after use, only the sheath tube housing needs to be discarded separately. Compared with the original trocar being polluted and scrapped, the trocar housing body can be retained for reuse, thereby reducing the cost of using the trocar;

[0016] 2. By setting a conductive heating auxiliary heating component in the sleeve and the sheath, the sheath in contact with the puncture wound is heated throughout the laparoscopic surgery, maintaining a temperature suitable for the human body, reducing the contraction of the wound tissue and alleviating the patient's discomfort;

[0017] 3. The rotating handle and finger hole structure set on the fastening screw make it easier to hold and apply force by hand when installing the sheath tube, compared with the original simple bolt fasteners. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure shows a three-dimensional structure diagram of the overall assembly of the sleeve-type puncture device for laparoscopy of the utility model;

[0019] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of the puncture shell body of the laparoscopic sleeve puncture device of the present invention;

[0020] Figure 3 The figure shows the three-dimensional structure of the puncture needle and sheath of the laparoscopic sleeve puncture device of the utility model;

[0021] Figure 4The diagram shows an enlarged three-dimensional structure of the details of the compression ring of the sleeve-type puncture device for laparoscopy of the present invention;

[0022] Figure 5 The following is a schematic diagram of the enlarged three-dimensional structure of the details of the quick-install assembly of the sleeve-type puncture device for laparoscopy of the utility model;

[0023] Figure 6 What is shown is a schematic diagram of the internal cross-sectional structure of the sleeve and compression ring assembly structure of the laparoscopic sleeve-type puncture device of the utility model.

[0024] Explanation of the accompanying drawings: 1. puncture device shell body; 2. sleeve; 3. outer edge plate; 4. puncture needle; 5. grip; 6. sheath; 7. compression ring; 11. gasket; 801. alignment needle; 802. alignment hole; 901. screw hole; 902. pin hole; 903. fastening screw; 904. rotating handle; 905. finger hole; 1001. heating tube; 1002. thermal wire; 1003. sealing ring. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-Figure 6 The utility model provides an embodiment: a sleeve 2-type puncture device for laparoscopy, comprising a puncture device shell body 1, a puncture needle 4, a grip 5, a sheath 6, a sleeve 2, an outer edge plate 3, a compression ring 7, an alignment mechanism, a quick-install component, and an auxiliary heating component; the lower end of the puncture device shell body 1 is integrally fixedly connected with the sleeve 2, the upper end of the sheath 6 is fixedly connected with the compression ring 7, the compression ring 7 is inserted into the sleeve 2 from bottom to top, an alignment mechanism and a quick-install component are arranged between the sleeve 2 and the compression ring 7, the sleeve 2 and the sheath 6 are both provided with an auxiliary heating component, the upper edge of the sleeve 2 is fixedly connected with the outer edge plate 3, the upper end of the puncture needle 4 is fixedly installed with the grip 5 and the puncture needle 4 is inserted along the puncture The puncture needle 4 is inserted into the inner channel of the puncture device shell body 1 and comes out from the bottom of the sheath tube 6. A sheath tube 6 with a suitable inner diameter is selected, and then the compression ring 7 on the sheath tube 6 is inserted into the sleeve 2 from bottom to top. Through the setting of the positioning mechanism, a horizontal lock is formed between the sheath tube 6 and the sleeve 2, and the quick-release assembly is ensured to be in place. After the compression ring 7 and the sleeve 2 are quickly connected into a whole using the quick-release assembly, the puncture needle 4 is inserted downward from the top of the puncture device shell body 1 and comes out from the bottom of the sheath tube 6. The puncture needle is inserted into the patient's abdominal surgical position, and the sheath tube 6 is pressed into the wound together with the puncture needle 4. After the puncture needle 4 is pulled out, the sheath tube 6 forms an entry and exit channel for the surgical instrument box laparoscope at the abdominal wound.

[0027] See also Figure 2-Figure 4In this embodiment, the alignment mechanism includes an alignment pin 801 and an alignment hole 802; the alignment pin 801 is fixedly connected to the top wall of the sleeve 2 and is provided with eight around it; the bottom end of the alignment pin 801 is a blunt round structure; the upper surface of the press-fit ring 7 is provided with an alignment hole 802 which penetrates longitudinally to the bottom of the press-fit ring 7; the upper end of the alignment hole 802 is a trumpet-shaped opening structure and is provided with eight around the press-fit ring 7; the alignment pin 801 is plugged into the corresponding alignment hole 802; when the press-fit ring 7 is inserted into the sleeve 2, a one-to-one plug-in correspondence between the alignment pin 801 and the alignment hole 802 is used to form a horizontal limit to prevent the press-fit ring 7 from rotating relative to the sleeve 2; and the blunt round structure at the end of the alignment pin 801 and the figure-eight end opening structure of the alignment hole 802 are used to make it easier for the alignment pin 801 to enter the alignment hole 802 when the press-fit ring 7 is plugged in opposite directions.

[0028] See also Figure 2 , Figure 5 In this embodiment, the quick-release assembly includes a screw hole 901, a pin hole 902, and a fastening screw 903; the screw hole 901 is provided on the outer wall of the sleeve 2, and eight pin holes 902 are provided around the outer wall of the compression ring 7. The fastening screw 903 is threadedly connected from the screw hole 901 and penetrates into the pin hole 902 to fix the sleeve 2 and the compression ring 7. The pin hole 902 and the alignment hole 802 are also in a one-to-one correspondence. After the compression ring 7 is inserted into the sleeve 2, the screw hole 901 is automatically aligned with one of the pin holes 902 on the compression ring 7, and the fastening bolt is screwed into the screw hole 901 until it is inserted. The pin hole 902 is inserted into the press-fit ring 7 and the sleeve 2 is completely locked. The quick-release assembly also includes a rotating handle 904 and a finger hole 905. The pier head of the fastening screw 903 is movably connected with a rotating handle 904 with a semi-circular ring structure through a rotating shaft, and a finger hole 905 is provided in the middle of the rotating handle 904 for inserting a finger. When tightening the fastening screw 903, first move the rotating handle 904 to a horizontal state by hand, and then pinch the rotating handle 904 with two fingers, or insert a finger into the finger hole 905 to rotate the rotating handle 904, so as to facilitate the application of force and drive the fastening screw 903 casting to be screwed into the screw hole 901.

[0029] See also Figure 5-Figure 6In this embodiment, the auxiliary heat component includes a heating tube 1001 and a sealing ring 1003; an annular groove is provided at the upper end of the outer edge plate 3, and the heating tube 1001 is embedded and installed in the annular groove, and a sealing ring 1003 is embedded at the upper end of the annular groove to press and fix the heating tube 1001. The heating tube 1001 is powered by an external power supply, and it always generates heat and maintains the temperature at 35°C-37°C throughout the puncture and surgery. The sealing ring 1003 is used to seal the annular groove to reduce the direct loss of heat to the outside. The auxiliary heat component also includes a heat-conducting wire 1002; the alignment needle 801 is a copper metal part and the upper end is in contact with the heating tube 1001 for heat transfer. The inner wall of the sheath tube 6 is coated with a longitudinally arranged heat-conducting wire 1002, and the upper end of the heat-conducting wire 1002 is in contact with the alignment needle 801. The needles 801 are in contact with each other for heat transfer, and the heating tube 1001 transfers the heat to the heat-conducting wire 1002 through the alignment needles 801, and the heat-conducting wire 1002 radiates outward to the sheath 6, so that the surface temperature of the sheath 6 close to the patient's wound is maintained at 35°C-37°C, preventing the wound tissue from being opened and contracted for a long time and reducing the patient's discomfort. A circle of notches is provided at the lower edge of the sleeve 2, and the lower edge of the sleeve 2 is covered with a gasket 11 with an arc-shaped lower surface. The inner wall of the gasket 11 is integrally connected with a flange embedded in the notch. The sheath 6 is inserted into the abdominal wound until the lower edge of the sleeve 2 contacts the skin. At this time, the flexible material of the gasket 11 is used to form a protective layer between the skin surface and the sleeve 2 to prevent skin friction damage.

[0030] Through the above steps, the sleeve 2 structure is used as a connector between the puncture device shell body 1 and the sheath 6, so that sheaths 6 and puncture needles 4 of different specifications can be replaced separately within the channel size range of the puncture device shell body 1 according to surgical needs to form surgical channels of different sizes, which is convenient for providing suitable surgical instruments to enter and exit. At the same time, after use, only the sheath 6 casing needs to be discarded separately. Compared with the original entire puncture device being contaminated and scrapped, the puncture device shell body 1 can be retained and reused, thereby reducing the cost of using the puncture device, so as to solve the problem that the existing integrated structure of the puncture device and the sheath 6 is not convenient for adjusting the size of the surgical channel, and the entire structure needs to be discarded after being contaminated, and the cost of using a single puncture device is high.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A sleeve-type puncture device for laparoscopy, comprising a puncture device housing body (1), a puncture needle (4), a handle (5), and a sheath tube (6); characterized in that: The invention also comprises a sleeve (2), an outer edge plate (3), a compression ring (7), an alignment mechanism, a quick-release assembly, and an auxiliary heating assembly; the sleeve (2) is integrally fixedly connected to the lower end of the puncture shell body (1), the compression ring (7) is fixedly connected to the upper end of the sheath tube (6), the compression ring (7) is inserted into the sleeve (2) from bottom to top, an alignment mechanism and a quick-release assembly are arranged between the sleeve (2) and the compression ring (7), the sleeve (2) and the sheath tube (6) are both provided with an auxiliary heating assembly, the outer edge plate (3) is fixedly connected to the upper end of the sleeve (2), a grip (5) is fixedly installed on the upper end of the puncture needle (4), and the puncture needle (4) penetrates along the internal channel of the puncture shell body (1) and passes out from the bottom of the sheath tube (6).

2. The laparoscopic sleeve puncture device according to claim 1, characterized in that: The alignment mechanism comprises an alignment pin (801) and an alignment hole (802); the alignment pin (801) is fixedly connected to the top wall of the sleeve (2) and is provided with eight alignment holes around a circle; the bottom end of the alignment pin (801) is a blunt round structure; the upper surface of the pressing ring (7) is provided with an alignment hole (802) which penetrates longitudinally to the bottom of the pressing ring (7); the upper end of the alignment hole (802) is a trumpet-shaped opening structure and is provided with eight alignment holes around the pressing ring (7); the alignment pin (801) is inserted into the corresponding alignment hole (802).

3. The laparoscopic sleeve puncture device according to claim 2, characterized in that: The quick-install assembly comprises a screw hole (901), a pin hole (902), and a fastening screw (903); the screw hole (901) is formed on the outer wall of the sleeve (2); eight pin holes (902) are formed around the outer wall of the compression ring (7); the fastening screw (903) is threadedly connected to the inner thread of the screw hole (901) and penetrates into the pin hole (902) to fix the sleeve (2) and the compression ring (7).

4. The laparoscopic sleeve puncture device according to claim 3, characterized in that: The quick-install assembly also includes a rotating handle (904) and a finger hole (905); the pier head of the fastening screw (903) is movably connected to the rotating handle (904) with a semi-circular ring structure through a rotating shaft, and the middle of the rotating handle (904) is provided with a finger hole (905) for inserting a finger.

5. The laparoscopic sleeve puncture device according to claim 4, characterized in that: The auxiliary heating component comprises a heating pipe (1001) and a sealing ring (1003); an annular groove is provided at the upper end of the outer edge plate (3), the heating pipe (1001) is embedded in the annular groove, and a sealing ring (1003) is embedded at the upper end of the annular groove for pressing and fixing the heating pipe (1001).

6. The laparoscopic sleeve puncture device according to claim 5, characterized in that: The auxiliary heat component also includes a heat-conducting wire (1002); the alignment needle (801) is a copper metal part and its upper end is in contact with the heating tube (1001) for heat transfer; the inner wall of the sheath tube (6) is coated with a longitudinally arranged heat-conducting wire (1002), and the upper end of the heat-conducting wire (1002) is in contact with the alignment needle (801) for heat transfer.

7. The laparoscopic sleeve puncture device according to claim 6, characterized in that: A circle of notches is provided at the lower edge of the sleeve (2), and a gasket (11) with an arc-shaped lower surface is covered on the lower edge of the sleeve (2), and the inner wall of the gasket (11) is integrally connected with a flange embedded in the notch.

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