Puncture-type post-insertion operation device and operation method therefor

Abstract

A puncture-type post-insertion operation device and an operation method therefor, relating to the technical field of surgical medical instruments. The puncture-type post-insertion operation device comprises a handle (1), an outer cannula (2), a central rod (3), and a forceps head (4); the main body portion of the outer cannula (2) is a hollow tube, one end portion of the outer cannula (2) is provided with a connecting thread I (201), and the other end portion of the outer cannula is provided with a slot I (202), a buckle (203), and an outer cannula rotation distance mark line (204); the central rod (3) is arranged inside the outer cannula (2), one end portion of the central rod (3) is provided with a connecting thread II (301), the rotation direction of the connecting thread II (301) is opposite to the rotation direction of the connecting thread I (201), the other end portion of the central rod is provided with a central rod rotation distance mark line (302) and a slot II (303), and the slot II (303) on the central rod (3) and the slot I (202) on the outer cannula (2) both cooperate with the buckle (203) to fix the outer cannula (2) and the central rod (3). While the performance of a laparoscopic operating forceps is not influenced and a conventional surgical operation is performed, the operation device achieves the purposes of avoiding an incision on a body surface, reducing incision pain of a patient during recovery, reducing the incidence of trocar-site hernia, and shortening the postoperative recovery period.

Description

Puncture type rear loading operation device and operation method thereof

[0001] The present application claims priority to the Chinese patent application No. 202411310464.2, filed on September 20, 2024, and entitled "Puncture type rear loading operation device and operation method thereof", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application belongs to the technical field of surgical medical instruments, and is a puncture type rear loading operation device and operation method thereof related to operation in a body cavity. BACKGROUND

[0003] In the steps of traditional endoscopic surgery, a cut is first taken on the skin surface, 5-12 mm long, and then a trocar is placed in. Various operation instruments used in surgery need to enter the body cavity (such as the chest cavity or abdominal cavity) through the trocar. This traditional method will cause incision pain during recovery, and will form obvious surgical incision scars and possibly form a trocar hole hernia after the incision heals.

[0004] Therefore, there is an urgent need for a new solution to solve the above problems. SUMMARY

[0005] The technical problem to be solved by the present application is that the traditional method may cause incision pain during recovery, surgical scars may cause unattractive appearance, and a trocar hole hernia may be formed. The present application provides a puncture type rear loading operation device and operation method thereof, which can avoid the practice of taking a body surface incision in the traditional method when placing a surgical operating forceps into a body cavity, and only a puncture hole will be left on the body wall. The puncture hole is very small and does not need to be sutured, and the scar after healing is small, which can bring an attractive effect. At the same time, it can reduce patient pain, reduce the incidence of trocar hole hernia, shorten the postoperative recovery period, and overcome the problems of incision pain, unattractive surgical scars, and possible formation of a trocar hole hernia caused by the traditional method.

[0006] The puncture type rear loading operation device is a surgical operation instrument, which comprises a handle, an outer sleeve, a center rod, and a forceps head.

[0007] The outer sleeve body part is a hollow tube, and a part of the outer sleeve body is suitable for puncturing the body wall. A connecting thread I is arranged at one end of the outer sleeve body.

[0008] The center rod is arranged inside the outer sleeve hollow tube, a part of the center rod body has a diameter suitable for puncturing the body wall, and the diameter of the puncture part of the center rod is smaller than that of the puncture part of the outer sleeve; one side end of the center rod is provided with a connecting thread II.

[0009] The end of the forceps head is provided with double-section threads, namely thread I' and thread II', the thread I' is threadedly connected with the connecting thread I of the outer sleeve in the body cavity, and the thread II' is threadedly connected with the connecting thread II of the center rod in the body cavity.

[0010] The other side end of the outer sleeve is provided with a clamping groove I, a buckle and an outer sleeve rotation distance scale.

[0011] The other side end of the center rod is provided with a clamping groove II and a center rod rotation distance scale.

[0012] The outer sleeve is provided with a buckle, the buckle connects the center rod and the outer sleeve into a linkage structure in the rotation direction through the clamping groove I and the clamping groove II, so that the center rod and the outer sleeve rotate synchronously.

[0013] When the center rod extends into the inner cavity of the outer sleeve hollow tube, the center rod rotation distance scale on the center rod is aligned with the outer sleeve rotation distance scale on the outer sleeve, the connecting thread II is threadedly connected with the thread II', the clamping groove II of the center rod is aligned with the clamping groove I of the outer sleeve through the buckle clamping after the connection.

[0014] The puncture needle is also included, one side end of the puncture needle is a needle-shaped tip, the diameter of the puncture needle is smaller than that of the puncture part of the outer sleeve; the puncture needle extends into the inner cavity of the outer sleeve, and the puncture needle and the outer sleeve form a puncture device for puncturing into the body cavity.

[0015] The hook wire rod is also included; the end of the forceps head is also provided with a threading hole; the guide wire passes through the threading hole, and the hook wire rod hooks the guide wire into the inner cavity of the outer sleeve in the body cavity.

[0016] The forceps head clamp is also included, the forceps head clamp is used for fixing the forceps head in the body cavity, and the outer sleeve, the center rod and the forceps head are fixedly connected in the body cavity.

[0017] The rotation direction of the connecting thread I of the outer sleeve is opposite to that of the connecting thread II of the center rod; the rotation direction of the thread I' of the forceps head is opposite to that of the thread II'.

[0018] The assembly method of the puncture type afterloading operation device is used for surgical operation, and includes the following steps:

[0019] Step one, a 1.5-2 cm incision is made on the body surface, and the body cavity is entered after layer-by-layer incision, the multi-channel single-hole endoscope device is placed into the body cavity through the incision, the inflation device is connected, the gas is inflated, and the operation space in the body cavity is established.

[0020] Step two, the puncture needle is used as the inner rod of the outer sleeve, and is inserted into the hollow lumen of the outer sleeve to form a puncture device in combination with the outer sleeve, so as to help the outer sleeve to puncture into the body cavity through the body wall;

[0021] Step three, the forceps are clamped by the forceps, and the forceps are sent into the body cavity through the multi-channel single-hole endoscope device. The threading hole at the end of the forceps is provided with a guide wire entering the body cavity. The puncture needle is withdrawn from the outer sleeve, the hook wire rod is sent into the body cavity through the outer sleeve, the guide wire is hooked by the hook wire rod, and the guide wire is hooked into the outer sleeve cavity during the withdrawal of the hook wire rod from the outer sleeve cavity. The threaded part of the forceps is guided into the hollow lumen of the outer sleeve through the guide wire, the guide wire is cut, and the outer sleeve thread I is screwed with the forceps thread I'.

[0022] Step four, the central rod is inserted into the outer sleeve lumen, the central rod rotation distance mark on the central rod is aligned with the outer sleeve rotation distance mark on the outer sleeve, the central rod connecting thread II is screwed with the forceps thread II', the central rod slot II is aligned with the outer sleeve slot I, the buckle on the outer sleeve connects the central rod and the outer sleeve through the slot I and the slot II in the rotation direction to form a linkage structure, so that the central rod and the outer sleeve rotate synchronously. The two threaded sections at the end of the forceps are in opposite directions, so that when the central rod and the outer sleeve are connected and the handle is rotated, one of the threads is always in a screwed state.

[0023] Step five, the handle is installed, the forceps are loosened, and the surgical operation in the body cavity is performed. When the handle moves the central rod in the direction of the long axis of the surgical operating forceps, the central rod moves normally in this direction. The movement of the central rod in the direction of the long axis of the surgical operating forceps can drive the forceps to open and close, so that the handle can drive the central rod to move in the direction of the long axis of the surgical operating forceps, so that the forceps can work normally.

[0024] Step six, after the operation is completed, the forceps are clamped to fix the forceps, the handle is removed, the handle side of the central rod and the outer sleeve is exposed, the central rod and the outer sleeve are rotated on the handle side, the central rod and the outer sleeve are separated from the forceps, the central rod and the outer sleeve are directly pulled out, and the body cavity is withdrawn. The forceps are withdrawn from the body cavity through the single-hole endoscope passage. The puncture point does not need to be sutured.

[0025] The puncture type rear-mounted operating device and the operating method thereof can avoid the traditional method of taking a body surface incision to place a trocar when placing a surgical operating forceps into a body cavity, only leaving a puncture hole in the body wall. The puncture hole is very small, does not need to be sutured, has a smaller scar after healing, and can bring an aesthetic effect. Meanwhile, the patient's pain can be reduced, the incidence of trocar hole hernia can be reduced, and the postoperative recovery period can be shortened. The problems of incision pain, unsightly surgical scar and possible formation of trocar hole hernia caused by the traditional method are overcome. BRIEF DESCRIPTION OF DRAWINGS

[0026] The application will be further described below in combination with the drawings and specific embodiments:

[0027] Fig. 1 is a structural schematic view of the combination of the outer sleeve, the center rod and the forceps head of the puncture type rear-mounted operating device of the application.

[0028] Fig. 2 is a structural schematic view of the outer sleeve of the puncture type rear-mounted operating device of the application.

[0029] Fig. 3 is a structural schematic view of the center rod of the puncture type rear-mounted operating device of the application.

[0030] Fig. 4 is a structural schematic view of the combination of the outer sleeve, the center rod and the forceps head of the puncture type rear-mounted operating device of the application connected with the handle.

[0031] Fig. 5 is a structural schematic view of the forceps head of the puncture type rear-mounted operating device of the application.

[0032] Fig. 6 is a structural schematic view of the puncture needle structure used in the operating method of the puncture type rear-mounted operating device of the application.

[0033] Fig. 7 is a structural schematic view of the puncture needle inserted into the outer sleeve structure used in the operating method of the puncture type rear-mounted operating device of the application.

[0034] Fig. 8 is a structural schematic view of the hook wire rod structure used in the operating method of the puncture type rear-mounted operating device of the application.

[0035] Fig. 9 is a structural schematic view of the forceps head clamp structure used in the operating method of the puncture type rear-mounted operating device of the application.

[0036] Fig. 1 is a structural schematic view of the combination of the outer sleeve, the center rod and the forceps head of the puncture type rear-mounted operating device of the application.

[0037] The puncture type rear loading operation device, as shown in FIG. 1-9, comprises a handle 1, an outer sleeve 2, a central rod 3 and a forceps head 4, and further comprises a puncture needle 5, a hook wire rod 6 and a forceps head clamp 7.

[0038] The handle 1 is the same as the conventional detachable endoscope surgery separating forceps handle currently used in clinical practice, which is used to connect with the end of the combined outer sleeve and central rod, and to perform the surgical operation of the forceps head 4.

[0039] The outer sleeve 2 is a hollow tube. The diameter of a part of the outer sleeve 2 is significantly smaller than the diameter of the outer sleeve of the conventional endoscope operation forceps, and the diameter range is suitable for puncturing the body wall. The one side end of the outer sleeve 2 is provided with a connecting thread I 201, and the other side end is provided with a clamping groove I 202 and a clamping buckle 203 and an outer sleeve rotation distance scale line 204.

[0040] The central rod 3 is arranged in the inner cavity of the outer sleeve 2. The diameter of a part of the central rod 3 is significantly smaller than the diameter of the central rod of the conventional endoscope operation forceps, and the diameter range is suitable for puncturing the body wall. The puncturable part of the central rod 3 is slightly smaller in diameter than the puncturable part of the outer sleeve 2, so that the central rod 3 can be inserted into the inner cavity of the outer sleeve 2. The one side end of the central rod 3 is provided with a connecting thread II 301, and the connecting thread II 301 is opposite in rotation direction to the connecting thread I 201. The other side end is provided with a central rod rotation distance scale line 302 and a clamping groove II 303. The clamping groove II 303 of the central rod 3 and the clamping groove I 202 of the outer sleeve 2 are matched with the clamping buckle 203, so as to clamping the central rod 3 and the outer sleeve 2 into a linkage structure in the rotation direction, so that the central rod 3 and the outer sleeve 2 rotate synchronously.

[0041] The forceps head 4 is provided with double thread segments at the end, which are thread I' 401 and thread II' 403 respectively. The thread I' 401 is matched with the connecting thread I 201, and the thread II' 403 is matched with the connecting thread II 301. The rotation directions of the thread I' 401 and the thread II' 403 are opposite. The thread I' 401 at the end of the forceps head has a thread hole 402 at the tip.

[0042] When the forceps head 4 is threadedly connected with the outer sleeve 2 and the central rod 3, the connection mode can be that the thread segment of the forceps head 4 is sleeved into the thread segment of the outer sleeve 2 and the central rod 3, and then is screwed tightly; or the thread segment of the outer sleeve 2 and the central rod 3 is sleeved into the thread segment of the forceps head 4, and then is screwed tightly.

[0043] The puncture needle 5 is provided with a needle head 501 at the end, and the puncture needle 5 can be inserted into the inner cavity of the outer sleeve 2. The one side end of the puncture needle 5 is a needle-shaped tip. When the puncture needle 5 is inserted into the inner cavity of the outer sleeve 2, the puncture needle 5 and the outer sleeve 2 can form a puncture device.

[0044] Hook wire rod 6: the end of the hook wire rod 6 is provided with a hook needle-shaped hooking end 601, which can be inserted into the inner cavity of the outer sleeve 2. The traction wire on the forceps head 4 is hooked in the inner cavity of the outer sleeve 2 in the body cavity, and the traction wire is led out through the handle side end outlet of the outer sleeve 2. The outer sleeve 2 can be sleeved into the outer sleeve 2 along the traction wire with the threaded side end of the forceps head 4.

[0045] Forceps head forceps 7: the forceps head forceps 7 can fix the forceps head 4 in the body cavity, and facilitate the connection and fixation of the outer sleeve 2 and the central rod 3 with the forceps head 4 in the body cavity.

[0046] A specific implementation method of the present application is taken as an example of laparoscopic appendectomy.

[0047] Step one, make a 1.5-2 cm longitudinal incision through the navel, cut layer by layer, and then place the multi-channel single-hole laparoscope device into the abdominal cavity through the incision, connect the gas insufflation device, and inflate carbon dioxide gas to establish a pneumoperitoneum.

[0048] Step two, select the anti-Mc's point as the puncture point. First, the puncture needle 5 is used as the inner rod of the outer sleeve 2, and is inserted into the outer sleeve 2 to form a puncture device. The operator aligns the puncture device needle tip with the anti-Mc's point, holds one end of the puncture needle 5 and the outer sleeve 2, and helps to puncture the puncture needle 5 and the outer sleeve 2 together into the abdominal cavity through the abdominal wall; wherein the puncture part of the outer sleeve 2 has a diameter of 1 mm, and the puncture part of the puncture needle 5 has a diameter of 0.8 mm.

[0049] Step three, the forceps head 4 is clamped by the forceps head forceps 7 and sent into the body cavity through the multi-channel single-hole laparoscope device. The threading hole 402 at the end of the forceps head 4 leads the guide wire into the body cavity. The puncture needle 5 is withdrawn from the outer sleeve 2, the hook wire rod 6 is sent into the body cavity through the outer sleeve 2, the guide wire is hooked by the hooking end 601 of the hook wire rod 6, and the guide wire is hooked into the outer sleeve 2 during the withdrawal of the hook wire rod 6 from the outer sleeve 2. The threaded part of the forceps head 4 can be guided into the outer sleeve 2 through the guide wire, the guide wire is cut, and the outer sleeve 2 is connected with the forceps head 4 by screwing the threaded I201 and the threaded I'401. (When the forceps head 4 is connected with the outer sleeve 2 by screwing, the connection mode can be that the threaded segment of the forceps head 4 is sleeved into the threaded segment of the outer sleeve 2, and then screwed; or the threaded segment of the outer sleeve 2 is sleeved into the threaded segment of the forceps head 4, and then screwed.)

[0050] Step four, the center rod 3 is inserted into the outer sleeve 2 lumen, the center rod 3 on the center rod rotation distance mark line 302 and the outer sleeve 2 on the outer sleeve rotation distance mark line 204 are aligned, the center rod 3 is connected with the forceps head 4, the thread II' 403 is tightened, at this time, the center rod 3 card slot II 303 and the outer sleeve 2 card slot I 202 are aligned, the metal sheet on the outer sleeve 2 on the buckle 203 is protruded, the center rod 3 and the outer sleeve 2 are clamped into a linkage structure in the rotation direction through the card slot I 202 and the card slot II 303, so that the center rod 3 and the outer sleeve 2 rotate synchronously. The thinner part of the center rod 3 is 0.8mm. (When the forceps head 4 is connected with the center rod 3, the connection mode can be that the threaded segment of the forceps head is sleeved into the threaded segment of the center rod 3, and then the connection is tightened; or the threaded segment of the center rod 3 is sleeved into the threaded segment of the forceps head 4, and then the connection is tightened).

[0051] Step five, the handle 1 is installed at the end of the combined center rod 3 and outer sleeve 2, and the forceps head 4 is operated and controlled through the handle 1 to perform intraperitoneal surgery; the forceps head 7 is loosened from the forceps head 4, and the forceps head 7 is withdrawn. The ultrasonic knife, clip applier, needle holder or other operating instruments can enter the abdominal cavity through the single-hole laparoscope access and cooperate with the post-puncture operating device to perform intraperitoneal surgical operation. Taking laparoscopic appendectomy as an example: the assembled post-puncture operating device lifts the appendix, the ultrasonic knife enters the abdominal cavity through the single-hole laparoscope access, the appendix mesentery is cut off, the appendix root is exposed, the clip applier enters the abdominal cavity through the single-hole laparoscope access, and the 12mm clip is used to clamp the appendix root and the appendix mesentery respectively. The ultrasonic knife enters the abdominal cavity through the single-hole laparoscope access, and the appendix is cut off. The appendix specimen is taken out through the single-hole laparoscope access.

[0052] Step six, after the operation is completed, the forceps head 4 is clamped and fixed by using the forceps head 7, the handle 1 is removed, the handle side of the center rod 3 and the outer sleeve 2 is exposed, the handle side of the center rod 3 and the outer sleeve 2 is rotated, the center rod 3 and the outer sleeve 2 are separated from the forceps head 4, and then the center rod 3 and the outer sleeve 2 are withdrawn from the body cavity. The forceps head 4 is withdrawn from the body cavity through the single-hole laparoscope access by the forceps head 7.

[0053] The above implementation examples are only used to illustrate the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application: such as the forceps head in the present application can be replaced by other body cavity surgical instruments; such as whether the diameter of part or all of the outer sleeve and the center rod is suitable for the puncture range, there is no substantial difference; such as whether the diameter of the outer sleeve and the center rod is specific or not, as long as it has the function of puncturing the body wall, it conforms to the spirit and essence of the present application. Whether the hook wire rod hook wire guiding instrument assembly is used or not, there is no substantial difference.

Claims

1. A puncture type rear loading operation device is a surgical operation instrument, comprising a handle (1), an outer sleeve (2), a central rod (3) and a clamp head (4), characterized in that: the main part of the outer sleeve (2) is a hollow tube, and a part of the main body of the outer sleeve (2) is suitable for puncturing the body wall, and a connecting thread I (201) is arranged at one end of the outer sleeve (2); the central rod (3) is arranged inside the hollow tube of the outer sleeve (2), and a part of the main body of the central rod (3) is suitable for puncturing the body wall, and the diameter of the puncture part of the central rod (3) is smaller than that of the puncture part of the outer sleeve (2); a connecting thread II (301) is arranged at one end of the central rod (3); the end of the clamp head (4) is provided with double-section threads, which are thread I' (401) and thread II' (403), respectively, thread I' (401) is connected with the connecting thread I (201) of the outer sleeve (2) in the body cavity, and thread II' (403) is connected with the connecting thread II (301) of the central rod (3) in the body cavity; the other end of the outer sleeve (2) is provided with a clamping groove I (202), a buckle (203) and an outer sleeve rotation distance scale line (204); the other end of the central rod (3) is provided with a clamping groove II (303) and a central rod rotation distance scale line (302); the outer sleeve (2) is provided with a buckle (203), the buckle (203) connects the central rod (3) and the outer sleeve (2) into a linkage structure in the rotation direction through the clamping groove I (202) and the clamping groove II (303), so that the central rod (3) and the outer sleeve (2) rotate synchronously; when the central rod (3) is inserted into the inner cavity of the hollow tube of the outer sleeve (2), the central rod rotation distance scale line (302) on the central rod (3) is aligned with the outer sleeve rotation distance scale line (204) on the outer sleeve (2), after the connecting thread II (301) and the thread II' (403) are connected by screwing, the clamping groove II (303) of the central rod (3) is aligned with the clamping groove I (202) of the outer sleeve (2) and is connected by the buckle (203); the rotation direction of the connecting thread I (201) of the outer sleeve (2) is opposite to that of the connecting thread II (301) of the central rod (3); the rotation direction of the thread I' (401) of the clamp head (4) is opposite to that of the thread II' (403).

2. The puncture type rear loading apparatus according to claim 1, characterized by: It also includes a puncture needle (5), one end of the puncture needle (5) is a needle-shaped tip, and the diameter of the puncture needle (5) is smaller than that of the puncturable part of the outer sleeve (2); the puncture needle (5) is inserted into the inner cavity of the outer sleeve (2), and the puncture needle (5) and the outer sleeve (2) form a puncture device for puncturing into the body cavity.

3. The puncture type rear loading apparatus according to claim 1, characterized by: It also includes a hook wire rod (6); the end of the clamp head (4) is also provided with a threading hole (402); the guide wire passes through the threading hole (402), and the hook wire rod (6) hooks the guide wire into the inner cavity of the outer sleeve (2) in the body cavity.

4. The puncture type rear loading apparatus according to claim 1, characterized by: It also includes a clamp head clamp (7), which is used for fixing the clamp head (4) in the body cavity, and ensures that the outer sleeve (2), the central rod (3) and the clamp head (4) are connected and fixed in the body cavity.

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