Reverse force application medical forceps for tracheostoma
By designing a reverse-force medical forceps with an arc-shaped reverse handle and an arc-shaped limiting strip structure, the problem of difficult force control during tracheostomy surgery was solved, enabling accurate and safe enlargement of the tracheal incision and reducing surgical risks.
Patent Information
- Application Number
- CN202422761270.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-11-13
AI Technical Summary
Existing medical forceps are difficult to control the force applied during tracheostomy surgery, which can easily lead to excessive tearing of the trachea and pose a safety risk.
A reverse-force medical forceps was designed, which adopts an arc-shaped reverse handle and an arc-shaped limiting bar structure to realize the reverse movement and intermittent closure of the forceps claws. The convex teeth on the arc-shaped limiting bar enable accurate enlargement and step-by-step control of the tracheostomy.
This effectively avoids the problems of excessively large tracheostomy holes or excessive tearing, improves the safety and accuracy of the surgery, and reduces the difficulty and risk of the surgery.
Smart Images
Figure CN223886937U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a reverse force medical forceps for tracheostomy. Background Technology
[0002] Percutaneous tracheostomy is a commonly used treatment technique for critically ill patients.
[0003] Patients with respiratory failure, altered consciousness, respiratory muscle weakness, or those requiring general anesthesia for various reasons require mechanical ventilation, and the establishment of an artificial airway is a prerequisite for mechanical ventilation. For short-term mechanical ventilation, endotracheal intubation can be used as an artificial airway. However, as the duration of mechanical ventilation increases, endotracheal intubation presents problems such as poor comfort, increased risk of pulmonary infection, relatively difficult airway management, and increased dead space. Therefore, for patients requiring mechanical ventilation for more than one week, the clinical practice usually chooses to replace the endotracheal tube with a percutaneous tracheostomy.
[0004] The procedure for tracheostomy generally involves the following steps: 1. Making an incision in the skin two finger-widths below the patient's Adam's apple; 2. Initially separating the subcutaneous and muscle layers to expose the trachea; 3. Inserting a puncture needle into the trachea, inserting a guidewire along the needle, removing the needle, and leaving the guidewire in the trachea; 4. Using a forceps-like tool inserted along the end of the guidewire into the trachea, immediately separating to form a sinus tract that penetrates the subcutaneous, muscle, and trachea; 5. Inserting a tracheostomy cannula.
[0005] Current tracheotomy techniques typically use medical forceps to separate and create a tracheal incision. However, this tool is not ergonomic and requires the thumb and forefinger to exert force outwards, making it difficult to control the direction and magnitude of the force. Excessive force can easily lead to excessive tearing of the trachea, which may affect ventilation in mild cases and, in severe cases, damage the airway, causing massive bleeding, nerve damage, thyroid damage, or even suffocation and death.
[0006] Therefore, there is an urgent clinical need for a surgical instrument that conforms to ergonomic principles, uses the pinching force of the thumb and forefinger instead of the abduction force, and allows for controllable opening and closing angles of the jaws, in order to reduce the difficulty and risk of surgery and maximize surgical safety. Utility Model Content
[0007] Based on the above analysis, the present invention aims to provide a reverse force medical forceps for tracheostomy, in order to solve the problem that the force applied by existing surgical forceps during the skin dilation operation of tracheostomy surgery is difficult to control (for example, it is easy to apply too much force and cause the tracheostomy hole to be too large).
[0008] The objective of this utility model is mainly achieved through the following technical solutions:
[0009] A reverse force medical forceps for tracheostomy includes: a first half-forceps, a second half-forceps, a first arc-shaped limiting strip, a second arc-shaped limiting strip, and a hinge shaft; the first half-forceps and the second half-forceps have the same structure; the first half-forceps and the second half-forceps are hinged together by the hinge shaft;
[0010] The first half-clamp includes: jaws, an arc-shaped reverse handle, a handle, and a gripping handle; the openings of the arc-shaped reverse handles of the first half-clamp and the second half-clamp are arranged in opposite directions, and when the gripping handles of the first half-clamp and the second half-clamp are close to each other, the jaws of the first half-clamp and the second half-clamp are far apart from each other.
[0011] The first arc-shaped limiting strip and the second arc-shaped limiting strip are respectively fixedly installed on the sides of the first half clamp and the second half clamp. The opposite sides of the first arc-shaped limiting strip and the second arc-shaped limiting strip are provided with multiple protruding teeth.
[0012] Furthermore, the jaws have a bent structure; the inner side of the jaws is provided with a semi-circular groove and a rectangular slot;
[0013] The rectangular slot is located in the middle of the jaws, and the semi-circular groove is connected from the end of the jaws to the rectangular slot. When the jaws of the first half-jaw and the second half-jaw overlap, the two semi-circular grooves can be combined to form a guide wire through hole, and the two rectangular slots can be closed to form a rectangular hole.
[0014] Furthermore, the arc-shaped reverse handle is a semi-circular clamp handle.
[0015] Furthermore, the grip handle has a ring-shaped structure.
[0016] Furthermore, the middle portion of the arc-shaped reverse handle of the first half-clamp and the second half-clamp are respectively provided with a first hinge hole and a second hinge hole.
[0017] Furthermore, the hinge shaft is rotatably mounted in the first hinge hole and the second hinge hole by means of riveting.
[0018] Furthermore, the first arc-shaped limiting strip and the second arc-shaped limiting strip have the same curvature.
[0019] Furthermore, the cross-section of the protruding teeth is semi-circular or triangular.
[0020] Furthermore, the protruding teeth are evenly distributed on the first arc-shaped limiting strip and the second arc-shaped limiting strip.
[0021] Furthermore, when the first half-clamp and the second half-clamp rotate relative to each other, the protruding teeth on the surfaces of the first arc-shaped limiting strip and the second arc-shaped limiting strip switch between engaging and disengaging states.
[0022] The technical solution of this utility model can achieve at least one of the following effects:
[0023] 1. The reverse force medical forceps for tracheostomy of this utility model, by setting an arc-shaped reverse handle, can realize that the jaws and grip handles of the first half forceps and the second half forceps move in opposite directions. When the two grip handles of the first half forceps and the second half forceps approach each other, the two jaws move away from each other, realizing the function of accurately widening the tracheostomy incision.
[0024] 2. The reverse force medical forceps of this utility model for tracheostomy can enlarge the tracheal incision in tracheostomy surgery. When the sides of the first half forceps and the second half forceps are in contact with each other, the distance between the two forceps claws can be naturally limited. At this time, the distance between the two forceps claws is at its maximum, which can avoid the problem of excessive tracheostomy due to excessive force during operation.
[0025] 3. The reverse force medical forceps of this utility model for tracheostomy use mutual limiting between the protruding teeth on the arc-shaped limiting strips on the two half-forceps, which can realize the intermittent closing of the first half-forceps and the second half-forceps. The opening process of the two forceps is discontinuous, which can realize the gradual process of tracheostomy incision dilation, and ultimately achieve accurate control of tracheostomy dilation.
[0026] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained from the description and accompanying drawings, which are particularly pointed out. Attached Figure Description
[0027] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.
[0028] Figure 1 This is a schematic diagram of the structure of the reverse force medical forceps for tracheostomy of this utility model - the forceps jaws in the closed state;
[0029] Figure 2 This is a schematic diagram of the structure of the reverse force medical forceps for tracheostomy of this utility model - the forceps jaws are open;
[0030] Figure 3 This is a partially enlarged view of the limiting component of the reverse force medical forceps for tracheostomy of this invention in the closed state of the forceps jaws;
[0031] Figure 4This is a partial enlarged view of the jaw position of the reverse force application medical forceps of this utility model for tracheostomy with the jaws closed.
[0032] Figure 5 This is a partially enlarged view of the position of the jaws of the reverse force application medical forceps of this invention for tracheostomy with the jaws open.
[0033] Figure 6 This is a partially enlarged view of the limiting component of the reverse force medical forceps of this invention for tracheostomy with the forceps claws open.
[0034] Figure label:
[0035] 1-First half clamp; 2-Second half clamp; 3-First arc-shaped limiting strip; 4-Second arc-shaped limiting strip; 5-Hinge shaft; 6-Protruding ridge teeth;
[0036] 11-Pliers jaws; 12-Arc-shaped reverse shank; 13-Pliers handle; 14-Grip handle;
[0037] 1101 - Semi-circular groove; 1102 - Rectangular groove. Detailed Implementation
[0038] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.
[0039] Example 1
[0040] A specific embodiment of this utility model discloses a reverse forceps for tracheostomy, such as... Figure 1 , Figure 2 As shown, it includes: a first half clamp 1, a second half clamp 2, a first arc-shaped limiting strip 3, a second arc-shaped limiting strip 4, and a hinge shaft 5.
[0041] Specifically, the first half-clamp 1 and the second half-clamp 2 have the same structural composition, both including: jaws 11, an arc-shaped reverse handle 12, a handle 13, and a gripping handle 14, as shown below. Figure 1 , Figure 2 As shown. Figure 1 As shown, when the two jaws 11 overlap, the first half-jaw 1 and the second half-jaw 2 are at their maximum opening angle. Figure 2 As shown, when the two jaws 11 are opened to their maximum, the first half-clamp 1 and the second half-clamp 2 are at their minimum opening angle.
[0042] Furthermore, the first half-clamp 1 and the second half-clamp 2 are hinged together by the hinge shaft 5, allowing them to rotate relative to each other.
[0043] Furthermore, the jaws 11, the arc-shaped reverse handle 12, the handle 13, and the gripping handle 14 are sequentially connected and form a single integrated structure, as shown below. Figure 2 As shown.
[0044] Preferably, the arc-shaped reverse handle 12 is a semi-circular clamp handle.
[0045] Specifically, one end of the arc-shaped reverse handle 12 is fixedly connected to the jaws 11, and the other end is fixedly connected to the handle 13; one end of the handle 13 is fixedly connected to the arc-shaped reverse handle 12, and the other end is fixedly connected to the grip handle 14.
[0046] Preferably, the grip handle 14 has a ring-shaped structure, such as... Figure 1 , Figure 2 As shown.
[0047] Furthermore, the middle portion of the arc-shaped reverse handle 12 of the first half clamp 1 and the second half clamp 2 is respectively provided with a first hinge hole and a second hinge hole.
[0048] Specifically, the openings of the two arc-shaped reverse handles 12 of the first half-clamp 1 and the second half-clamp 2 are arranged in opposite directions and are hinged together by the hinge shaft 5, as shown below. Figure 1 As shown.
[0049] In this embodiment, the medical forceps, by setting an arc-shaped reverse handle 12, enables the jaws 11 of the first half-clamp 1 and the second half-clamp 2 to move in opposite directions to the gripping handles 14; that is, when the two gripping handles 14 of the first half-clamp 1 and the second half-clamp 2 approach each other, the two jaws 11 move away from each other; as... Figure 2 , Figure 5 , Figure 6 As shown. When the two gripping handles 14 of the first half-clamp 1 and the second half-clamp 2 move away from each other, the two jaws 11 move closer to each other, as shown. Figure 1 , Figure 3 , Figure 4 As shown.
[0050] Furthermore, the hinge shaft 5 is rotatably mounted in the first hinge hole and the second hinge hole by means of riveting.
[0051] During implementation, when the operator applies force with their hands to bring the gripping handles 14 of the first half-clamp 1 and the second half-clamp 2 closer together, the arc-shaped reverse handle 12 causes the jaws 11 at the front ends of the first half-clamp 1 and the second half-clamp 2 to move away from each other, thereby enabling the tracheal incision to be enlarged during tracheostomy surgery. Furthermore, when the sides of the first half-clamp 1 and the second half-clamp 2 come into contact with each other, the distance between the two jaws 11 is naturally limited. At this time, the distance between the two jaws 11 is at its maximum, which can avoid the problem of excessive tracheostomy due to excessive force during operation.
[0052] Preferably, in this embodiment, the jaws 11 are duckbill-shaped structures with curved ends, such as... Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown.
[0053] In one specific embodiment of this utility model, such as Figure 3 , Figure 5 As shown, the inner side of the jaw 11 is provided with a semi-circular wire groove 1101 extending along its own axis. The jaws 11 of the first half-clamp 1 and the second half-clamp 2 can overlap each other, and when the jaws 11 of the first half-clamp 1 and the second half-clamp 2 overlap, the two semi-circular wire grooves 1101 can be combined to form a guide wire through hole.
[0054] Furthermore, such as Figure 3 , Figure 5 As shown, a rectangular slot 1102 is provided in the middle of the jaw 11, and a semi-circular groove 1101 is connected from the end of the jaw 11 to the rectangular slot 1102. When the jaws 11 of the first half-clamp 1 and the second half-clamp 2 overlap each other, the two rectangular slots 1102 close to form a rectangular hole.
[0055] During implementation, the medical forceps are clamped on the outside of the guidewire (pre-inserted in the tracheostomy incision), with the guidewire positioned between the two semi-circular grooves 1101. This allows the two jaws 11 of the medical forceps to be inserted into the tracheostomy incision along the guidewire, facilitating subsequent diaphragm operation. The end of the guidewire is led out from the rectangular hole. As the jaws 11 of the medical forceps are inserted into the tracheostomy incision along the guidewire, the guidewire slides along the two semi-circular grooves 1101 and the two rectangular slots 1102, forming the guidewire passage and the rectangular hole.
[0056] Furthermore, in order to achieve multi-level adjustment of the opening angle of the jaws 11 of the reverse force medical forceps for tracheostomy of this invention; in this embodiment, a first arc-shaped limiting strip 3 and a second arc-shaped limiting strip 4 are respectively fixedly installed on the sides of the first half-clamp 1 and the second half-clamp 2, as shown below. Figure 1 , Figure 2 , Figure 4, Figure 6 As shown.
[0057] Specifically, the first arc-shaped limiting strip 3 and the second arc-shaped limiting strip 4 have the same curvature, such as... Figure 4 , Figure 6 As shown. Preferably, the centers of the arcs of the first arc-shaped limiting strip 3 and the second arc-shaped limiting strip 4 coincide with the axis of the hinge shaft 5.
[0058] Specifically, the opposing sides of the first arc-shaped limiting strip 3 and the second arc-shaped limiting strip 4 are each provided with multiple protruding teeth 6, such as... Figure 4 , Figure 6 As shown.
[0059] Preferably, the cross-section of the protruding tooth 6 is semi-circular.
[0060] Or, such as Figure 4 , Figure 6 As shown, the cross-section of the cam tooth is an obtuse triangle.
[0061] Preferably, multiple protruding teeth 6 are evenly distributed on the first arc-shaped limiting strip 3 and the second arc-shaped limiting strip 4.
[0062] Furthermore, the first arc-shaped limiting strip 3 and the second arc-shaped limiting strip 4 are arranged overlapping each other, and when the first half-clamp 1 and the second half-clamp 2 rotate relative to each other, the protruding teeth 6 on the surfaces of the first arc-shaped limiting strip 3 and the second arc-shaped limiting strip 4 switch between engaging and disengaging states, thereby realizing the relative sliding of the first arc-shaped limiting strip 3 and the second arc-shaped limiting strip 4.
[0063] In this embodiment, as Figure 3 As shown, when the first half-clamp 1 and the second half-clamp 2 are rotated to the point where the distance between the first arc-shaped limiting strip 3 and the second arc-shaped limiting strip 4 is the farthest, the two jaws 11 of the first half-clamp 1 and the second half-clamp 2 are in contact with each other. At this time, the distance between the two jaws 11 is the smallest, and the two jaws 11 can be inserted into the tracheostomy incision. Figure 5 As shown, when the first half clamp 1 and the second half clamp 2 rotate relative to each other until the distance between the first arc-shaped limiting strip 3 and the second arc-shaped limiting strip 4 is the smallest, the protruding teeth 6 on their surfaces engage with each other, and at this time the distance between the two jaws 11 at the front end of the first half clamp 1 and the second half clamp 2 is the largest. At this time, the jaws 11 can achieve maximum hole enlargement of the tracheostomy incision.
[0064] In this embodiment, the intermittent closing of the first half clamp 1 and the second half clamp 2 can be achieved by limiting each other through the convex teeth 6. That is to say, the opening process of the two clamp claws 11 is not continuous, avoiding the problem of excessive tracheostomy dilation due to excessive force applied by the operator.
[0065] It is worth noting that the transition between the engaged and disengaged states of the protruding teeth 6 on the surfaces of the first arc-shaped limiting strip 3 and the second arc-shaped limiting strip 4 is achieved through slight deformation of the first arc-shaped limiting strip 3 and the second arc-shaped limiting strip 4.
[0066] Preferably, the height of the protruding teeth 6 protruding from the surface of the first arc-shaped limiting strip 3 / second arc-shaped limiting strip 4 is no more than 1mm.
[0067] During implementation, the operator rotates the first half clamp 1 and the second half clamp 2 relative to each other by operating the grip handle 14. When the first half clamp 1 and the second half clamp 2 rotate relative to each other, the first arc-shaped limiting strip 3 and the second arc-shaped limiting strip 4 gradually engage. During the operation of the operator, the two grip handles 14 gradually approach each other, and the clamping action between the protruding teeth 6 can achieve the intermittent opening of the jaws 11 at the front end of the first half clamp 1 and the second half clamp 2, so as to accurately control the degree of dilation of the tracheostomy incision in real time.
[0068] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.
Claims
1. A reverse forceps for tracheostomy, characterized in that, include: The first half-clamp (1), the second half-clamp (2), the first arc-shaped limiting strip (3), the second arc-shaped limiting strip (4), and the hinge shaft (5); the first half-clamp (1) and the second half-clamp (2) have the same structure; the first half-clamp (1) and the second half-clamp (2) are hinged together by the hinge shaft (5); The first half-clamp (1) includes: jaws (11), an arc-shaped reverse handle (12), a handle (13), and a gripping handle (14); the openings of the arc-shaped reverse handles (12) of the first half-clamp (1) and the second half-clamp (2) are arranged in opposite directions, and when the gripping handles (14) of the first half-clamp (1) and the second half-clamp (2) are close to each other, the jaws (11) of the first half-clamp (1) and the second half-clamp (2) are far apart from each other; The first arc-shaped limiting strip (3) and the second arc-shaped limiting strip (4) are respectively fixedly installed on the sides of the first half clamp (1) and the second half clamp (2). The opposite sides of the first arc-shaped limiting strip (3) and the second arc-shaped limiting strip (4) are provided with multiple protruding teeth (6).
2. The reverse forceps for tracheostomy according to claim 1, characterized in that, The jaws (11) have a bent structure; the inner side of the jaws (11) is provided with a semi-circular groove (1101) and a rectangular slot (1102); The rectangular slot (1102) is located in the middle of the jaws (11), and the semi-circular wire groove (1101) is connected from the end of the jaws (11) to the rectangular slot (1102). When the jaws (11) of the first half-clamp (1) and the second half-clamp (2) overlap each other, the two semi-circular wire grooves (1101) can be combined to form a guide wire through hole, and the two rectangular slots (1102) can be closed to form a rectangular hole.
3. The reverse force-applying medical forceps for tracheostomy according to claim 1, characterized in that, The arc-shaped reverse handle (12) is a semi-circular clamp handle.
4. The reverse forceps for tracheostomy according to claim 1, characterized in that, The grip handle (14) has a ring structure.
5. The reverse force-applying medical forceps for tracheostomy according to any one of claims 1-4, characterized in that, The first half clamp (1) and the second half clamp (2) are respectively provided with a first hinge hole and a second hinge hole in the middle part of the arc-shaped reverse handle (12).
6. The reverse force-applying medical forceps for tracheostomy according to claim 5, characterized in that, The hinge shaft (5) is rotatably mounted in the first hinge hole and the second hinge hole by means of riveting.
7. The reverse force-applying medical forceps for tracheostomy according to claim 1, characterized in that, The first arc-shaped limiting strip (3) and the second arc-shaped limiting strip (4) have the same arc.
8. The reverse force-applying medical forceps for tracheostomy according to claim 1, characterized in that, The cross-section of the protruding tooth (6) is semi-circular or triangular.
9. The reverse force-applying medical forceps for tracheostomy according to claim 8, characterized in that, The protruding teeth (6) are evenly distributed on the first arc-shaped limiting strip (3) and the second arc-shaped limiting strip (4).
10. The reverse force-applying medical forceps for tracheostomy according to claim 9, characterized in that, When the first half clamp (1) and the second half clamp (2) rotate relative to each other, the protruding teeth (6) on the surfaces of the first arc-shaped limiting strip (3) and the second arc-shaped limiting strip (4) switch between engaging and disengaging states.