CN219289616U

CN219289616U - Puncture outfit

Info

Publication number: CN219289616U
Application number: CN202222027383.4U
Authority: CN
Inventors: 侍亚东; 卜迟斌; 董宏炜; 王军平; 张洋; 颜迪
Original assignee: Guanyun People's Hospital
Current assignee: Guanyun People's Hospital
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2023-07-04
Anticipated expiration: 2032-08-02

Abstract

The utility model discloses a puncture outfit, comprising: the center of the sleeve is provided with a vertically penetrating cavity, the middle part of the penetrating cavity is provided with a sealing film, and the penetrating cavity is provided with a protection sheet above the sealing film; the puncture core rod is penetrated through the cavity, the bottom of the puncture core rod penetrates out of the cavity, the top end of the puncture core rod is provided with a rod head, and the rod head is used for propping against the upper end face of the sleeve so as to limit the insertion depth of the puncture core rod; the club head is matched with the sleeve in a concave-convex mode to achieve circumferential limiting. The sealing film and the protective sheet play a role in sealing, and the protective sheet can also prevent the sealing film from being pierced by surgical instruments in the long-time surgical process; the club head is used for propping against the upper end face of the sleeve to realize the limit of the insertion depth, the insertion depth is prevented from being too deep, the club head is matched with the sleeve in a concave-convex manner to realize the circumferential limit, and the puncture core rod is prevented from rotating relative to the sleeve to interfere the operation and scratch the dirty of the abdominal cavity device.

Description

Puncture outfit

Technical Field

The utility model relates to the field of medical instruments, in particular to an abdominal wall puncture outfit for endoscopic surgery.

Background

With the development of the endoscope technology, the scope operation indication is continuously expanded. The development of transumbilical endoscopic surgery has been faster in recent years. The principle of the umbilical endoscopic surgery is that a soft endoscope is placed through an umbilical incision, and the soft endoscope is probed, sampled, operated and treated after entering the abdominal cavity. The operation type fully utilizes the flexibility of the soft endoscope, and after the endoscope enters the abdominal cavity through the umbilical incision, the endoscope freely passes through the whole abdominal cavity, and diagnosis and treatment of diseases related to the visceral organs of the abdominal cavity are carried out under the enlarged view of the endoscope. The endoscope can observe the peritoneum and abdominal viscera on a display by means of a light source at the front end of the endoscope, discover lesions in time, take pictures and record videos at the same time, and store image data. By means of the suction channel of the endoscope, ascites can be sucked for inspection, even the low-level and hidden parts such as small omentum sac, spleen fossa and pelvic cavity can be carefully observed, and the ascites at the parts can be easily sucked. After finding and positioning pathological tissues, the tissue specimens can be accurately cut, and the pathological examination is sent for clear diagnosis; or other surgical treatments. The operation type wound is small, the observation is careful, the disturbance to the circulation, the respiration and the digestive system of a patient is small, the postoperative recovery is quick, and the development space is relatively wide.

In this surgical approach, one of the key instruments is an abdominal wall puncture outfit. During operation, the puncture outfit is punctured through the umbilical incision to enter the abdominal cavity, and then the endoscope enters the abdominal cavity through the puncture outfit for relevant observation and operation. But currently lack a dedicated, suitable puncture outfit; only the laparoscopic puncture outfit can be used. The laparoscopic puncture outfit is used for the transumbilical endoscopic surgery and has the following defects: the main body of the laparoscope puncture outfit is longer, the internal organs of a patient can be scraped, and the operation risk is high; the fit between the laparoscope puncture outfit and the soft endoscope is poor; the puncture core rod of the laparoscope puncture outfit can rotate relative to the sleeve, and is easy to interfere with operations.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a puncture outfit.

According to an embodiment of the first aspect of the present utility model, a puncture instrument includes: the center of the sleeve is provided with a vertically penetrating cavity, the middle part of the penetrating cavity is provided with a sealing film, and the penetrating cavity is provided with a protection sheet above the sealing film; the puncture core rod is penetrated through the cavity, the bottom of the puncture core rod penetrates out of the cavity, the top end of the puncture core rod is provided with a rod head, and the rod head is used for propping against the upper end face of the sleeve so as to limit the insertion depth of the puncture core rod; the club head is matched with the sleeve in a concave-convex mode to achieve circumferential limiting.

The puncture outfit according to the embodiment of the utility model has at least the following beneficial effects: the sealing film and the protective sheet play a role in sealing, and the protective sheet can also prevent the sealing film from being pierced by surgical instruments in the long-time surgical process; the club head is used for propping against the upper end face of the sleeve to realize the limit of the insertion depth, the insertion depth is prevented from being too deep, the club head is matched with the sleeve in a concave-convex manner to realize the circumferential limit, and the puncture core rod is prevented from rotating relative to the sleeve to interfere the operation and scratch the dirty of the abdominal cavity device.

According to some embodiments of the utility model, the upper end surface of the sleeve is provided with a positioning hole, and the bottom of the club head is provided with a positioning column inserted into the positioning hole.

According to some embodiments of the utility model, the axial limiting structure is used for limiting the axial direction of the puncture core rod, and the axial limiting structure can move to unlock the axial direction of the puncture core rod.

According to some embodiments of the utility model, the axial limiting structure is a buckle fixed on the upper end face of the sleeve, the circumferential wall of the club head is provided with a clamping groove matched with the buckle, and the top end of the buckle can elastically move to be separated from the clamping groove.

According to some embodiments of the utility model, the clip top is provided with a breaking-off piece.

According to some embodiments of the utility model, the sleeve comprises a main tube having a main cavity with an upper end opening, and a tube cap detachably connected to the upper end of the main cavity, the tube cap having a central hole therethrough at the center.

According to some embodiments of the utility model, the lower end of the main pipe is provided with an insertion pipe section, and the peripheral wall of the insertion pipe section is provided with a friction groove so as to increase the friction force of the insertion pipe section when being pulled out of a human body.

According to some embodiments of the utility model, a limiting block is arranged at the upper end of the inner wall of the main cavity, a clamping block is arranged on the periphery of the pipe cover, a limiting groove matched with the limiting block is formed in the clamping block, and an opening is formed in one side of the limiting groove for the clamping block to be rotationally embedded.

According to some embodiments of the utility model, the upper end of the main chamber is provided with a step surface, and the upper end of the sealing membrane is provided with a flange protruding outwards in radial direction, and the flange is lapped on the step surface and is pressed by the pipe cover.

According to some embodiments of the utility model, the main chamber peripheral wall is provided with an air duct, which is fitted with a valve.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of an embodiment of a puncture outfit according to the present utility model;

FIG. 2 is an enlarged view at A of FIG. 1;

FIG. 3 is a schematic view of the exploded view of FIG. 1;

FIG. 4 is an internal cross-sectional view of one embodiment of the puncture instrument of the present utility model;

FIG. 5 is an internal cross-sectional view of the sleeve;

fig. 6 is a top view of the tube cap.

Reference numerals:

the pipe cover comprises a sleeve 100, a main pipe 101, a pipe cover 102, a main cavity 103, a limiting block 104, a step surface 105, a gland 106, a penetrating cavity 110, a middle cavity 111, a pipe cavity 112, a center hole 113, a sealing film 120, a flange 121, a protection sheet 130, a positioning hole 140, a buckle 150, a breaking block 151, an inserted pipe section 160, a friction groove 161, a clamping block 170, a limiting groove 171, an air duct 180 and a valve 181;

piercing mandrel 200, rod head 210, friction bump 211, positioning column 220, and clamping groove 230.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 3, the puncture outfit according to the embodiment of the present utility model includes a cannula 100 and a puncture core bar 200.

The center of the sleeve 100 is provided with a vertically penetrating cavity 110, the middle part of the cavity 110 is provided with a sealing film 120, and the cavity 110 is provided with a protecting sheet 130 above the sealing film 120; the puncture core bar 200 is arranged in the puncture cavity 110 in a penetrating way, the bottom of the puncture core bar 200 is arranged in the puncture cavity 110 in a penetrating way, the top end of the puncture core bar 200 is provided with a rod head 210, and the rod head 210 is used for propping against the upper end face of the sleeve 100 so as to limit the insertion depth of the puncture core bar 200; the club head 210 is in a concave-convex fit with the sleeve 100 to achieve circumferential restraint. Specifically, the upper end of the club head 210 is provided with a friction bump 211 to increase the friction force during operation.

According to the puncture outfit provided by the embodiment of the utility model, the sealing film 120 and the protection sheet 130 play a role in sealing; the protection sheet 130 is used for wrapping the peripheral wall of the endoscope or the puncture core rod to realize sealing, and the protection sheet 130 can also prevent the sealing film 120 from being punctured by the surgical instrument in the long-time surgical process; the club head 210 is used for propping against the upper end surface of the sleeve 100 to realize the limit of the insertion depth, so that the insertion depth is prevented from being too deep, the club head 210 is matched with the sleeve 100 in a concave-convex manner to realize the circumferential limit, and the puncture core bar 200 is prevented from rotating relative to the sleeve 100 to interfere with the operation and scratch the dirty of the abdominal cavity device.

Referring to fig. 3, it can be understood that the upper end surface of the sleeve 100 is provided with a positioning hole 140, the bottom of the club head 210 is provided with a positioning column 220 inserted into the positioning hole 140, and circumferential positioning is achieved on the club head 210 through concave-convex cooperation of the positioning hole 140 and the positioning column 220, so that the club head 210 cannot rotate against the sleeve 100, thereby avoiding interference with surgery and dirty scrapers.

Referring to fig. 2 and 3, it may be understood that the axial limiting structure is further included for limiting the axial direction of the puncture core bar 200, and the axial limiting structure can move to unlock the axial direction of the puncture core bar 200, so that the puncture core bar 200 can be conveniently unlocked and then pulled out for inserting a subsequent medical apparatus.

Specifically, the axial limiting structure is a buckle 150 fixed on the upper end surface of the sleeve 100, the circumferential wall of the rod head 210 is provided with a clamping groove 230 matched with the buckle 150, and when the clamping groove 230 is matched with the buckle 150, the rod head 210 abuts against the upper end surface of the sleeve 100, so that the relative positions of the two are stable, the top end of the buckle 150 can elastically move to be separated from the clamping groove 230, and the unlocking is convenient.

Referring to fig. 2, it can be understood that the top end of the buckle 150 is provided with a breaking block 151, and the breaking block 151 facilitates to break off the buckle 150, so that the buckle 150 is separated from the clamping groove 230, and unlocking is facilitated.

Referring to fig. 3, it can be understood that the sleeve 100 includes a main tube 101 and a tube cover 102, the main tube 101 has a main cavity 103 with an open upper end, the tube cover 102 is detachably connected to the upper end of the main cavity 103, a central hole 113 is formed in the center of the tube cover 102, the tube cover 102 seals the upper end of the main cavity 103, and a central hole 113 is left for the piercing mandrel 200 to pierce. The detachable connection of the main pipe 101 and the pipe cover 102 facilitates processing and assembly.

Referring to fig. 3, it can be understood that the lower end of the main pipe 101 is provided with an insertion pipe section 160, the peripheral wall of the insertion pipe section 160 is provided with a friction groove 161 to increase the friction force of the insertion pipe section 160 for withdrawing the human body, the friction groove 161 is an annular groove, and the annular grooves are arranged along the axial direction, the groove depth of the annular groove is gradually increased from top to bottom, so that the friction force of the insertion pipe section 160 for inserting the human body is smaller than the friction force of the insertion pipe section 160 for withdrawing the human body, and the smoothness of the insertion pipe section 160 for inserting the human body is improved.

Referring to fig. 3, it can be understood that the upper end of the inner wall of the main cavity 103 is provided with a limiting block 104, the periphery of the pipe cover 102 is provided with a clamping block 170, the clamping block 170 is provided with a limiting groove 171 matched with the limiting block 104, one side of the limiting groove 171 is opened for the clamping block 170 to be rotationally embedded, the pipe cover 102 and the main pipe 101 are detachably connected through the clamping block 170 embedded into the limiting groove 171, and the pipe cover 102 can be detached and installed through rotation. In addition, the opening side of the limiting groove 171 is provided with a chamfer to facilitate the clamping of the clamping block 170, and the clamping block 170 and the limiting groove 171 are in interference fit to realize the stability of the connection of the pipe cover 102 and the main pipe 101. In addition, in order to achieve multi-position limitation, a plurality of the clamping blocks 170 are arranged along the circumferential direction of the tube cover 102.

Referring to fig. 3 and 4, it will be appreciated that the upper end of the main chamber 103 is provided with a stepped surface 105 and the upper end of the sealing membrane 120 is provided with a radially outwardly projecting flange 121, the flange 121 overlapping the stepped surface 105 and being compressed by the cap 102. The sealing film 120 is generally made of elastic plastic, silica gel, rubber and other materials, and has a certain elasticity, when the flange 121 is pressed by the tube cover 102, the flange 121 can apply an elastic force to the tube cover 102, so that the stopper 104 is in closer contact with the limiting groove 171.

Referring to fig. 5, in addition, the puncture chamber 110 is composed of an intermediate chamber 111, a tube chamber 112, and a central hole 113, and the intermediate chamber 111 is formed by enclosing the main chamber 103 and the tube cover 102. Lumen 112 is then the central lumen of insertion tube segment 160, and lumen 112 and central bore 113 are coaxial.

It can be understood that the peripheral wall of the main cavity 103 is provided with an air duct 180, the air duct 180 is provided with a valve 181, the valve 181 can control the on-off of the air duct 180, and the sealing film 120 can realize sealing during ventilation to reduce the air leakage.

Referring to fig. 5 and 6, the protection sheet 130 is disposed in the central hole 113, a groove is formed at the bottom of the tube cover 102, the gland 106 is mounted in the groove, and part of the protection sheet 130 is pressed by the gland 106 and extends into the central hole 113. The protective sheet 130 is provided in plurality and sequentially overlapped adjacently.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A puncture outfit, comprising:

the casing (100) is provided with a vertically penetrating cavity (110) in the center, the middle part of the penetrating cavity (110) is provided with a sealing film (120), and the penetrating cavity (110) is provided with a protection sheet (130) above the sealing film (120);

the puncture core rod (200) is arranged in the puncture cavity (110) in a penetrating way, the bottom of the puncture core rod penetrates out of the puncture cavity (110), the top end of the puncture core rod (200) is provided with a rod head (210), and the rod head (210) is used for propping against the upper end face of the sleeve (100) so as to limit the insertion depth of the puncture core rod (200);

wherein the club head (210) is in concave-convex fit with the sleeve (100) to realize circumferential limit.

2. The puncture device according to claim 1, wherein: the upper end face of the sleeve (100) is provided with a positioning hole (140), and the bottom of the club head (210) is provided with a positioning column (220) inserted into the positioning hole (140).

3. The puncture device according to claim 1, wherein: the axial limiting structure is used for limiting the axial direction of the puncture core rod (200), and the axial limiting structure can move to limit and unlock the axial direction of the puncture core rod (200).

4. A puncture device according to claim 3, characterized in that: the axial limiting structure is a buckle (150) fixed on the upper end face of the sleeve (100), a clamping groove (230) matched with the buckle (150) is formed in the peripheral wall of the rod head (210), and the top end of the buckle (150) can elastically move to be separated from the clamping groove (230).

5. The puncture device according to claim 4, wherein: the top end of the buckle (150) is provided with a breaking block (151).

6. The puncture device according to claim 1, wherein: the sleeve (100) comprises a main pipe (101) and a pipe cover (102), the main pipe (101) is provided with a main cavity (103) with an opening at the upper end, the pipe cover (102) is detachably connected to the upper end of the main cavity (103), and a through center hole (113) is formed in the center of the pipe cover (102).

7. The puncture device according to claim 6, wherein: the lower end of the main pipe (101) is provided with an inserting pipe section (160), and the peripheral wall of the inserting pipe section (160) is provided with a friction groove (161) so as to increase the friction force of the inserting pipe section (160) for being pulled away from a human body.

8. The puncture device according to claim 7, wherein: the pipe cover is characterized in that a limiting block (104) is arranged at the upper end of the inner wall of the main cavity (103), a clamping block (170) is arranged on the periphery of the pipe cover (102), a limiting groove (171) matched with the limiting block (104) is formed in the clamping block (170), and an opening is formed in one side of the limiting groove (171) so that the clamping block (170) can be rotationally embedded.

9. The puncture device according to claim 8, wherein: the upper end of the main cavity (103) is provided with a step surface (105), the upper end of the sealing film (120) is provided with a flange (121) protruding outwards in the radial direction, and the flange (121) is lapped on the step surface (105) and is pressed by the pipe cover (102).

10. The puncture device according to claim 8, wherein: an air duct (180) is arranged on the peripheral wall of the main cavity (103), and a valve (181) is arranged on the air duct (180).