CN113907819B

CN113907819B - Puncture cone with push pin structure

Info

Publication number: CN113907819B
Application number: CN202111344056.5A
Authority: CN
Inventors: 谷勤立
Original assignee: Transeasy Medical Tech Co ltd
Current assignee: Transeasy Medical Tech Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2023-06-23
Anticipated expiration: 2041-11-15
Also published as: CN113907819A

Abstract

The invention relates to a puncture cone with a push needle structure, and relates to the technical field of medical appliances. The puncture cone with the push pin structure comprises a handle, a puncture housing cover, a side wing locking block, a puncture tube, a push-pull rod, a guide connecting block, a side wing, a puncture cone, a push-wire rod, a fixed shaft, a puncture housing and a rivet; the puncture tube is arranged at the lower end of the puncture shell and is fixed through a retainer ring, the wing locking block is arranged in the puncture shell, the push-wire rod is arranged in the puncture tube, and the push-pull rod is arranged in the push-wire rod; the lower end of the handle passes through the puncture housing cover and the side wing locking block to be connected with the push-wire rod, and the upper end of the push-wire rod is connected with the side wing locking block through the fixed shaft. The puncture cone can pre-arrange the suture on the puncture cone and penetrate fascia at two sides of the incision, so that the operation is simple and convenient, the operation time is shortened, and the effectiveness of the suture can be ensured.

Description

Puncture cone with push pin structure

Technical Field

The invention relates to the technical field of medical instruments, in particular to a puncture cone with a push needle structure, which is used for establishing a channel and suturing an incision in minimally invasive laparoscopic surgery.

Background

The laparoscopic surgery has the advantages of small trauma, small physiological interference to patients, good beautifying effect, light pain, quick rehabilitation and the like, gradually replaces the traditional surgery, and has been widely applied to general surgery, gynecology and cardiothoracic surgery. Laparoscopic surgery requires an incision in the abdomen of a patient, surgery is performed under laparoscopic observation, and fascia suturing is performed after the surgery, and the suturing operation is difficult because of the characteristics of small incision, deep inner wall and the like. The existing solutions include manual suturing and fascia stapler suturing, wherein the manual suturing is suitable for lean patients, and for obese patients, the abdominal wall tissue is thick, and accurate and effective suturing of the puncture incision cannot be satisfied, so that a series of complications such as bleeding, infection, puncture hernia, injury and the like are caused. The fascia suture device can suture fascia of an obese patient, but the puncture outfit is pulled out first, then the fascia suture device is operated, the operation is complex, the operation time is long, and the risk of infection of the patient is increased.

To solve the above problems, CN 108158635A discloses a laparoscopic puncture stapler, which arranges sutures on both sides of an incision in advance, and tightens and knots the sutures after the operation is finished, thereby completing the suturing. However, from the device, the cone part of the device is divided into two parts, so that the device is easy to misplace during puncturing, the puncturing performance is influenced, the two sides of the puncture sleeve are grooved, and the tissue is damaged during puncturing.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention aims to provide a puncture cone with a push pin structure.

The puncture cone with the push pin structure is characterized in that: the puncture needle comprises a handle, a puncture housing cover, a side wing locking block, a puncture tube, a push-pull rod, a guide connecting block, a side wing, a puncture cone, a wire pushing rod, a fixed shaft, a puncture housing and a rivet; the puncture tube is arranged at the lower end of the puncture shell and is fixed through a retainer ring, the side wing locking block is arranged in the puncture shell, the push-wire rod is arranged in the puncture tube, and the push-pull rod is arranged in the push-wire rod; the lower extreme of handle passes puncture shell lid, flank locking piece with push away the line pole and be connected, the upper end of push-and-pull rod passes through the fixed axle with flank locking piece is connected, the flank is two, and the upper end of flank is fixed through the round pin axle puncture cone's upper portion, and the both sides of puncture cone are provided with the breach portion that holds the flank, the direction connecting block sets up the lower extreme of puncture pipe, and puncture cone's upper portion with the direction connecting block cooperation is and pass through rivet will puncture cone and direction connecting block with the lower extreme fixed connection of puncture pipe.

The push wire rod comprises a push wire rod body, a push wire rod connecting section is arranged at the upper end of the push wire rod body, a plane and an arc surface are arranged on the outer surface of the push wire rod connecting section along the length direction of the push wire rod connecting section, a connecting groove is formed in the upper end of the push wire rod connecting section, a central hole for accommodating the push wire rod is formed in the push wire rod body and the push wire rod connecting section, and a crossed push needle structure is arranged on the push wire rod body.

The lower part of the handle is provided with a handle rod body, the outer surface of the handle rod body is provided with an elongated slot for avoiding the fixed shaft, and the handle rod body extends into the bottom of the puncture housing cover, the side wing locking block and the puncture housing to be matched with the connecting slot at the upper end of the push wire rod.

The guide connecting block comprises a first connecting block and a second connecting block, wherein the first connecting block and the second connecting block are buckled with the clamping block through a Z-shaped clamping groove, and a guide inclined block is formed at the upper ends of the first connecting block and the second connecting block.

The guide inclined block enables the crossed push pin structure to be positioned in the puncture tube in an initial state, and the crossed push pin structure can be opened by an angle when pushed forward, so that the position of the crossed push pin structure for puncturing fascia is 8-15mm away from the edge of a wound.

The push-pull rod comprises a push-pull rod body, a push-pull rod connecting end is arranged at the upper end of the push-pull rod body, a first shaft hole and a second shaft hole are sequentially formed in the push-pull rod connecting end from top to bottom, a first avoidance ring body and a second avoidance ring body are sequentially arranged at the lower end of the push-pull rod from top to bottom, a push plate is arranged at the lower end of the second avoidance ring body, and convex columns are arranged at two sides of the push plate; the normal direction of the plane where the first avoidance ring body is located and the normal direction of the plane where the second avoidance ring body is located are perpendicular to each other.

The push-pull rod connecting end is arranged in the middle of the side wing locking block, the fixing shaft penetrates through the side wing locking block and a second shaft hole in the connecting end to enable the upper end of the push-pull rod to be connected with the middle of the side wing locking block, buttons are arranged at two ends of the fixing shaft, a small pressure spring is arranged between the buttons and the puncture shell, a blocking piece is further arranged in the puncture shell, and the blocking piece is connected with a first shaft hole in the connecting end through a connecting pin to enable the blocking piece to be arranged above the side wing locking block.

The device further comprises a long pressure spring, wherein the long pressure spring is sleeved on the cross push pin structure, and the long pressure spring is positioned between the lower end of the push wire rod body and the first avoidance ring body.

The cross push pin structure penetrates through the first avoidance ring body, and the rivet penetrates through the second avoidance ring body to fixedly connect the puncture cone and the guide connection block with the lower end of the puncture tube.

The side wings comprise side wing transmission parts and silica gel blocks, arc sliding grooves are formed in the side wing transmission parts, and the side wing transmission parts are connected with the puncture cone through groove shafts arranged on the arc sliding grooves.

Compared with the prior art, the puncture cone with the push pin structure has the following beneficial effects:

the puncture cone can pre-arrange the suture on the puncture cone and penetrate fascia at two sides of the incision, and can pull the suture at two sides of the incision out of the sleeve to be pre-knotted, so that the operation in the operation is not influenced, the operation time is shortened, and the effectiveness of the suture can be ensured.

Drawings

Fig. 1 is a schematic cross-sectional view of a puncture cone in the puncture cone with a push pin structure of embodiment 1.

Fig. 2 is an exploded view of the puncture cone with a push pin structure of embodiment 1.

Fig. 3 is a schematic structural view of a push-pull rod with push-pin structure in embodiment 1.

Fig. 4 is a schematic structural diagram of a push wire rod with push pin structure in embodiment 1.

Fig. 5 is a sectional view of the push pin crossing swash block expanding mechanism in the puncture cone according to embodiment 1.

Fig. 6 is a schematic structural view of a push-pull rotary connection mechanism in the puncture cone of embodiment 1.

Fig. 7 is a cross-sectional structural view of the connection of the handle and the push wire rod in the push-pull rotary connecting mechanism.

Fig. 8 is a schematic view showing a pushing state structure of the push pin crossing diagonal block expanding mechanism.

FIG. 9 is a schematic cross-sectional view showing a connection structure between a puncture tube and a puncture tip in example 1.

Fig. 10 is a combined structure of the puncture cone and the puncture cannula according to embodiment 1.

Detailed Description

The puncture cone with the push pin structure according to the present invention will be further described with reference to specific embodiments, so as to help those skilled in the art to more completely, accurately and deeply understand the technical solution of the present invention.

Example 1

As shown in fig. 1 to 9, the puncture cone with the push pin structure of the present embodiment comprises a handle 1, a puncture housing cover 2, a side wing locking block 4, a button 6, a puncture tube 7, a push-pull rod 8, a guide connection block 9, a side wing 10, a puncture cone 11, a push wire rod 12, a long pressure spring 13, a retainer ring 14, a fixed shaft 15, a puncture housing 16 and a rivet 17. The puncture tube 7 is arranged at the lower end of the puncture housing 16 and is fixed by a retainer ring 14. The flank locking block 4 is arranged in the puncture housing 16, the push wire rod 12 is arranged in the puncture tube 7, and the push wire rod 8 is arranged in the push wire rod 12. The lower end of the handle 1 passes through the puncture housing cover 2 and the side wing locking blocks 4 to be connected with the push wire rod 12, and the upper end of the push wire rod 8 is connected with the side wing locking blocks 4 through the fixed shaft 15. The number of the side wings 10 is two, the upper ends of the side wings 10 are fixed on the upper part of the puncture cone 11 through pin shafts, and the two sides of the puncture cone 11 are provided with notch parts for accommodating the side wings 10. As shown in fig. 9, the guide connection block 9 is provided at the lower end of the penetration pipe 7, and the upper portion of the penetration cone 11 is engaged with the guide connection block 9 and the rivet 17 fixedly connects the penetration cone 11 and the guide connection block 9 with the lower end of the penetration pipe 7.

As shown in fig. 4, the push rod 12 includes a push rod body 1205, a push rod connecting section is disposed at an upper end of the push rod body 1205, a plane 1201 and an arc surface 1202 are disposed on an outer surface of the push rod connecting section along a length direction of the push rod connecting section, a connecting groove 1203 is disposed at an upper end of the push rod connecting section, a central hole 1204 for accommodating the push rod 8 is disposed in the push rod body 1205 and the push rod connecting section, and the push rod body 1205 is provided with a cross push pin structure 1206.

As shown in fig. 3, the push-pull rod 8 includes a push-pull rod body 801, a push-pull rod connection end 802 is provided at an upper end of the push-pull rod body 801, a first shaft hole 808 and a second shaft hole 803 are sequentially provided at the push-pull rod connection end 802 from top to bottom, a first avoidance ring body 804 and a second avoidance ring body 805 are sequentially provided at a lower end of the push-pull rod 8 from top to bottom, a push plate 806 is provided at a lower end of the second avoidance ring body 805, and convex columns 807 are provided at two sides of the push plate 806. The normal direction of the plane where the first avoidance ring 804 is located and the normal direction of the plane where the second avoidance ring 805 is located are perpendicular to each other.

In this embodiment, the side wing 10 includes a side wing transmission part and a silica gel block, an arc chute is provided on the side wing transmission part, and the side wing transmission part is installed with the puncture cone 11 through a slot shaft provided on the arc chute. The push-pull rod 8, the side wings 10 and the puncture cone 11 form a push-pull unfolding mechanism, the push-pull rod 8 is pushed downwards or pulled back, the silica gel block (the opening part) is opened or closed through the convex column 807 on the push plate 806, the suture is locked, and the side wing transmission part ensures the realization of the movement. In the puncture cone of the embodiment, the side wings are combined with puncture, the shape of the side wings is changed according to the radian of the puncture cone, and the cutting edge part of the puncture cone is reserved, so that the puncture performance is not affected.

As shown in fig. 8, in this embodiment, the cross push pin structure 1206 is disposed through the first avoidance ring 804, and the rivet 17 is disposed through the second avoidance ring 805 to fixedly connect the puncture cone 11 and the guide connection block 9 with the lower end of the puncture tube 7.

In this embodiment, the long compression spring 13 is sleeved on the cross push pin structure 1206, and the long compression spring 13 is located between the lower end of the push rod body 1205 and the first avoiding ring 804.

In this embodiment, the connecting end 802 of the push-pull rod is disposed in the middle of the side wing locking block 4, and the fixing shaft 15 passes through the side wing locking block 4 and the second shaft hole 803 on the connecting end 802 to connect the upper end of the push-pull rod 8 with the middle of the side wing locking block 4. The button 6 is provided at both ends of the fixed shaft 15, and a small compression spring 5 is provided between the button 6 and the puncture housing 16. A blocking piece 3 is further arranged in the puncture housing 16, and the blocking piece 3 is connected with a first shaft hole 808 on the connecting end 802 through a connecting pin, so that the blocking piece 3 is arranged above the side wing locking block 4 and is matched with the handle 1. In the puncture cone of the present embodiment, the side wing locking blocks 4 can be used for connecting the push-pull rod 8, and the side wing locking blocks can be connected with the button 6 and provide a channel for the handle 1, so that the push-pull rod 8 can move more stably. The puncture housing cover 2 cooperates with the puncture housing 3 to form a closed housing structure. The puncture housing cover 2, the puncture housing 16, the button 4, the fixed shaft 15, the small pressure spring 5 and the side wing locking block 7 form a push-pull locking mechanism, when the button is pressed, the stop dog on the button is retracted, so that the button, the side wing locking block and the push-pull rod can slide up and down, and when the button is released, the stop dog of the button is rebound locked by virtue of the small pressure spring; the fixed shaft (made of metal rod) connects the button, the flank locking block 7 and the push-pull rod 8 together, so that stability is improved, and locking is firmer.

In this embodiment, as shown in fig. 8 to 9, the guiding connection block includes a first connection block and a second connection block, the first connection block and the second connection block are buckled by a Z-shaped clamping groove and a clamping block, and a guiding oblique block 901 is formed at the upper ends of the first connection block and the second connection block, the guiding oblique block 901 enables the cross push pin structure 1206 to be located in the puncture tube in an initial state, and the cross push pin structure 1206 can be opened by an angle when pushed forward, and is inserted into a silica gel block of the side wing 10, and can not be clamped (by the cross angle design of the cross push pin structure, the position of the push pin puncturing fascia is 8-15mm away from the edge of the puncture tube).

In this embodiment, as shown in fig. 6 to 7, a handle rod 105 is disposed below the handle 1, and an elongated slot 106 is disposed on the outer surface of the handle rod 105 to avoid the fixed shaft 15. The handle rod body 105 stretches into the bottoms of the puncture housing cover 2, the baffle 3, the side wing locking blocks 7 and the puncture housing 16 to be matched with the connecting groove 1203 at the upper end of the push wire rod 12.

As shown in fig. 10, a puncture cone 100 with a push-pin structure is assembled together with a puncture sleeve 20 (a known puncture sleeve can be adopted), a handle 1 is pulled out and then rotated, the handle 1 is connected with a push-wire rod 12 and locked under the action of a mechanism, the handle 1 is pushed out for a certain distance, the front end of a cross push-pin structure 1206 in the push-wire rod 12 is exposed out of the puncture sleeve, a medical suture with a corresponding specification is arranged on a suture needle at the front end of the cross push-pin structure 1206 as required, the handle 1 is pulled out again to enable the push-wire rod 12 to return to an initial position, the handle 1 is reset, and the preassembly of the medical suture is completed. The palm center is arranged at the position of the handle 1, the lower shell of the puncture sleeve is respectively held by two fingers, the puncture sleeve rotates slowly, the sleeve is perpendicular to the abdominal wall (the unavailable force is excessively large) during the puncture, the puncture stops at a specified position, the front end of the puncture cone 11 is in a wing-shaped structure, the purpose is to rotate left and right during the puncture, the tissues can be separated, and the damage degree to the tissues is reduced. The button 4 is pushed downwards, the side wings 10 are unfolded and locked under the action of the push-pull rod 8, the puncture sleeve is lifted upwards, the side wings 10 are propped against fascia, the handle 1 is lifted upwards, rotated and locked, the handle 1 is pushed downwards, the suture is pushed out, passes through fascia, enters a silica gel block of the side wings 10, is slowly pulled out beyond a certain distance, whether the suture is clamped on the silica gel block, then is completely withdrawn, the handle 1 is pulled to the bottom, the rotary handle 1 is pushed downwards again and returns to the initial position, the push-pull rod 8 is pushed back by the button 4, the side wings 10 are closed, then the puncture sleeve is integrally pushed into the abdominal cavity, an inclination angle is formed between the puncture sleeve and the abdominal wall during puncture (the puncture sleeve is not required to be too large for attention, and meanwhile, the puncture needle is observed to be unable to damage viscera), after the puncture sleeve is penetrated, the puncture cone is pulled out of the puncture sleeve is used as an operation channel, the puncture sleeve is withdrawn after the operation is completed, the puncture sleeve is pulled out, the suture is pulled out, the abdominal cavity is cut off, and fascia closure is completed.

It will be apparent to those skilled in the art that the present invention has been described by way of example only, and that the invention is not limited to the above-described embodiments, but is capable of numerous insubstantial modifications within the scope of the invention as long as the inventive concept and technical solutions are adopted.

Claims

1. Puncture awl with push pin structure, its characterized in that: the puncture needle comprises a handle, a puncture housing cover, a side wing locking block, a puncture tube, a push-pull rod, a guide connecting block, a side wing, a puncture cone, a wire pushing rod, a fixed shaft, a puncture housing and a rivet; the puncture tube is arranged at the lower end of the puncture shell and is fixed through a retainer ring, the side wing locking block is arranged in the puncture shell, the push-wire rod is arranged in the puncture tube, and the push-pull rod is arranged in the push-wire rod; the lower end of the handle penetrates through the puncture housing cover and the side wing locking block to be connected with the push-pull rod, and the upper end of the push-pull rod is connected with the side wing locking block through the fixing shaft; the upper ends of the two side wings are fixed at the upper part of the puncture cone through pin shafts, the two sides of the puncture cone are provided with notch parts for accommodating the side wings, the guide connecting block is arranged at the lower end of the puncture tube, the upper part of the puncture cone is matched with the guide connecting block, and the puncture cone and the guide connecting block are fixedly connected with the lower end of the puncture tube through rivets; the push wire rod comprises a push wire rod body, a push wire rod connecting section is arranged at the upper end of the push wire rod body, a plane and an arc surface are arranged on the outer surface of the push wire rod connecting section along the length direction of the push wire rod connecting section, a connecting groove is formed at the upper end of the push wire rod connecting section, a central hole for accommodating the push wire rod is formed in the push wire rod body and the push wire rod connecting section, and a cross push needle structure is arranged on the push wire rod body; the push-pull rod comprises a push-pull rod body, a push-pull rod connecting end is arranged at the upper end of the push-pull rod body, a first shaft hole and a second shaft hole are sequentially formed in the push-pull rod connecting end from top to bottom, a first avoidance ring body and a second avoidance ring body are sequentially arranged at the lower end of the push-pull rod from top to bottom, a push plate is arranged at the lower end of the second avoidance ring body, and convex columns are arranged at two sides of the push plate; the normal direction of the plane where the first avoidance ring body is located and the normal direction of the plane where the second avoidance ring body is located are vertically arranged; the cross push pin structure passes through the first avoidance ring body, and the rivet passes through the second avoidance ring body to fixedly connect the puncture cone and the guide connection block with the lower end of the puncture tube.

2. The puncture cone with push pin structure according to claim 1, characterized in that: the lower part of the handle is provided with a handle rod body, the outer surface of the handle rod body is provided with a long groove avoiding the fixed shaft, and the handle rod body stretches into the bottom of the puncture housing cover, the side wing locking block and the puncture housing to be matched with the connecting groove at the upper end of the push wire rod.

3. The puncture cone with push pin structure according to claim 1, characterized in that: the guide connecting block comprises a first connecting block and a second connecting block, wherein the first connecting block and the second connecting block are buckled with the clamping block through a Z-shaped clamping groove, and a guide inclined block is formed at the upper ends of the first connecting block and the second connecting block.

4. A puncture cone with a push pin structure according to claim 3, characterized in that: the guide inclined block enables the crossed push pin structure to be positioned in the puncture tube in an initial state, and the crossed push pin structure can be opened by an angle when pushed forward, so that the crossed push pin structure punctures fascia and is 8-15mm away from the edge of the wound.

5. The puncture cone with push pin structure according to claim 4, characterized in that: the push-pull rod connecting end is arranged in the middle of the side wing locking block, the fixed shaft penetrates through the side wing locking block and a second shaft hole in the connecting end to enable the upper end of the push-pull rod to be connected with the middle of the side wing locking block, buttons are arranged at two ends of the fixed shaft, a small pressure spring is arranged between the buttons and the puncture shell, a blocking piece is further arranged in the puncture shell, and the blocking piece is connected with a first shaft hole in the connecting end through a connecting pin to enable the blocking piece to be arranged above the side wing locking block.

6. The puncture cone with push pin structure according to claim 1, characterized in that: the puncture cone further comprises a long pressure spring, the long pressure spring is sleeved on the cross push needle structure, and the long pressure spring is located between the lower end of the push wire rod body and the first avoidance ring body.

7. The puncture cone with push pin structure according to claim 1, characterized in that: the side wings comprise side wing transmission parts and silica gel blocks, arc sliding grooves are formed in the side wing transmission parts, and the side wing transmission parts are connected with the puncture cone through groove shafts arranged on the arc sliding grooves.